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Статті в журналах з теми "Network function configuration"
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Schmidt, A., C. Kruse, F. Rottensteiner, U. Soergel, and C. Heipke. "NETWORK DETECTION IN RASTER DATA USING MARKED POINT PROCESSES." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B3 (June 10, 2016): 701–8. http://dx.doi.org/10.5194/isprs-archives-xli-b3-701-2016.
Повний текст джерелаАнотація:
We propose a new approach for the automatic detection of network structures in raster data. The model for the network structure is represented by a graph whose nodes and edges correspond to junction-points and to connecting line segments, respectively; nodes and edges are further described by certain parameters. We embed this model in the probabilistic framework of marked point processes and determine the most probable configuration of objects by stochastic sampling. That is, different graph configurations are constructed randomly by modifying the graph entity parameters, by adding and removing nodes and edges to/ from the current graph configuration. Each configuration is then evaluated based on the probabilities of the changes and an energy function describing the conformity with a predefined model. By using the Reversible Jump Markov Chain Monte Carlo sampler, a global optimum of the energy function is determined. We apply our method to the detection of river and tidal channel networks in digital terrain models. In comparison to our previous work, we introduce constraints concerning the flow direction of water into the energy function. Our goal is to analyse the influence of different parameter settings on the results of network detection in both, synthetic and real data. Our results show the general potential of our method for the detection of river networks in different types of terrain.
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Schmidt, A., C. Kruse, F. Rottensteiner, U. Soergel, and C. Heipke. "NETWORK DETECTION IN RASTER DATA USING MARKED POINT PROCESSES." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B3 (June 10, 2016): 701–8. http://dx.doi.org/10.5194/isprsarchives-xli-b3-701-2016.
Повний текст джерелаАнотація:
We propose a new approach for the automatic detection of network structures in raster data. The model for the network structure is represented by a graph whose nodes and edges correspond to junction-points and to connecting line segments, respectively; nodes and edges are further described by certain parameters. We embed this model in the probabilistic framework of marked point processes and determine the most probable configuration of objects by stochastic sampling. That is, different graph configurations are constructed randomly by modifying the graph entity parameters, by adding and removing nodes and edges to/ from the current graph configuration. Each configuration is then evaluated based on the probabilities of the changes and an energy function describing the conformity with a predefined model. By using the Reversible Jump Markov Chain Monte Carlo sampler, a global optimum of the energy function is determined. We apply our method to the detection of river and tidal channel networks in digital terrain models. In comparison to our previous work, we introduce constraints concerning the flow direction of water into the energy function. Our goal is to analyse the influence of different parameter settings on the results of network detection in both, synthetic and real data. Our results show the general potential of our method for the detection of river networks in different types of terrain.
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Billings, Steve A., and Guang L. Zheng. "Radial basis function network configuration using genetic algorithms." Neural Networks 8, no. 6 (January 1995): 877–90. http://dx.doi.org/10.1016/0893-6080(95)00029-y.
Повний текст джерела
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Jaimes-Reátegui, R., J. M. Castillo-Cruz, J. H. Garcıa-Lopez, G. Huerta-Cuellar, L. A. Gallegos-Infante, and A. N. Pisarchik. "Bistability in network motifs of Duffing oscillators." Cybernetics and Physics, Volume 9, 2020, Number 1 (June 30, 2020): 31–40. http://dx.doi.org/10.35470/2226-4116-2020-9-1-31-40.
Повний текст джерелаАнотація:
We study the emergence of synchronization in the network motif of three bistable Duffing oscillators coupled in all possible configurations. The equation of motion is derived for every configuration. For each motif, we vary initial conditions of every oscillator and calculate the bifurcation diagram as a function of the coupling strength. We find transitions of the whole system to a monostable regime with either a fixed point or a limit cycle depending on the motif’s configuration, as the coupling strength is increased. The most complex dynamics is observed the nidirectional chain, where a transition to quasiperiodicity occurs.
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Mateichyk, Vasyl, Miroslaw Śmieszek, and Nataliia Kostian. "Evaluation of transport system configuration by efficiency indicators." Transport technologies 2022, no. 2 (December 10, 2022): 52–62. http://dx.doi.org/10.23939/tt2022.02.052.
Повний текст джерелаАнотація:
The study is devoted to the process of evaluating the efficiency of the transport system in terms of urban mobility. The approach is based on the use of a system of performance indicators using neurocomputer technologies. Generalized models for obtaining a vector of performance indicators and an integral performance indicator in the form of computer neural networks are proposed. It is shown that to record the fact that the indicator values fall to the threshold and below, it is enough to use a neural network built on perceptron neurons. The multi-layered model for determining the integral indicator allows assessing the importance of individual indicators in the system of monitoring the efficiency of a given configuration of the transport system. An experimental study of twenty-five states of the transport system of various configurations in the cities of Poland and Ukraine was carried out. The key indicators of the system's efficiency are determined, namely, the energy efficiency indicator of the vehicle as a system element, the environmental indicator and the traffic safety indicator. Based on the results of the experimental study, a neural network structure is proposed for evaluating the energy efficiency of given configurations of the transport system. For the purpose of training and testing the obtained network, the procedure of adjusting the threshold value of the activation function and normalizing the values of the input parameters array of the transport system was used. The constructed network was implemented using Visual Studio 2019 using the C++ language. The network was adjusted to determine the energy efficiency estimate with a given accuracy by replacing the perceptron neuron with a regular one with a sigmoidal activation function. The random nature of the choice of the configuration and the initial values of the weighting factors made it possible to obtain a model with an accuracy of implementation on the control sample in the range from 90 to 98.7% at a learning rate of 0.1.
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SHARPE, ROBERT N., and MO-YUEN CHOW. "RELATIONSHIP BETWEEN A FUZZY LOGIC AND A STEEPEST DESCENT APPROACH TO OPTIMIZE A FEEDFORWARD ARTIFICIAL NEURAL NETWORK CONFIGURATION." International Journal of Neural Systems 05, no. 04 (December 1994): 299–312. http://dx.doi.org/10.1142/s012906579400030x.
Повний текст джерелаАнотація:
The neural network designer must take into consideration many factors when selecting an appropriate network configuration. The performance of a given network configuration is influenced by many different factors such as: accuracy, training time, sensitivity, and the number of neurons used in the implementation. Using a cost function based on the four criteria mentioned previously, the various network paradigms can be evaluated relative to one another. If the mathematical models of the evaluation criteria as functions of the network configuration are known, then traditional techniques (such as the steepest descent method) could be used to determine the optimal network configuration. The difficulty in selecting an appropriate network configuration is due to the difficulty involved in determining the mathematical models of the evaluation criteria. This difficulty can be avoided by using fuzzy logic techniques to perform the network optimization as opposed to the traditional techniques. Fuzzy logic avoids the need of a detailed mathematical description of the relationship between the network performance and the network configuration, by using heuristic reasoning and linguistic variables. A comparison will be made between the fuzzy logic approach and the steepest descent method for the optimization of the cost function. The fuzzy optimization procedure could be applied to other systems where there is a priori information about their characteristics.
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Rădulescu, Anca. "Neural Network Spectral Robustness under Perturbations of the Underlying Graph." Neural Computation 28, no. 1 (January 2016): 1–44. http://dx.doi.org/10.1162/neco_a_00798.
Повний текст джерелаАнотація:
Recent studies have been using graph-theoretical approaches to model complex networks (such as social, infrastructural, or biological networks) and how their hardwired circuitry relates to their dynamic evolution in time. Understanding how configuration reflects on the coupled behavior in a system of dynamic nodes can be of great importance, for example, in the context of how the brain connectome is affecting brain function. However, the effect of connectivity patterns on network dynamics is far from being fully understood. We study the connections between edge configuration and dynamics in a simple oriented network composed of two interconnected cliques (representative of brain feedback regulatory circuitry). In this article our main goal is to study the spectra of the graph adjacency and Laplacian matrices, with a focus on three aspects in particular: (1) the sensitivity and robustness of the spectrum in response to varying the intra- and intermodular edge density, (2) the effects on the spectrum of perturbing the edge configuration while keeping the densities fixed, and (3) the effects of increasing the network size. We study some tractable aspects analytically, then simulate more general results numerically, thus aiming to motivate and explain our further work on the effect of these patterns on the network temporal dynamics and phase transitions. We discuss the implications of such results to modeling brain connectomics. We suggest potential applications to understanding synaptic restructuring in learning networks and the effects of network configuration on function of regulatory neural circuits.
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LIU, YABO, JIANHUA YANG, and ZHAOHUI WU. "UBIQUITOUS AND COOPERATIVE NETWORK ROBOT SYSTEM WITHIN A SERVICE FRAMEWORK." International Journal of Humanoid Robotics 08, no. 01 (March 2011): 147–67. http://dx.doi.org/10.1142/s021984361100237x.
Повний текст джерелаАнотація:
Network robot system (NRS) is a new concept that integrates physical autonomous robots, environmental sensors, and human–robot interactions through network-based cooperation. The aim of this paper is to provide a ubiquitous and cooperative service framework for NRS. We first present foundational concepts of semantic map and service definition for the framework. Then, in order to generate feasible service configurations to fulfill tasks, we propose service configuration and reconfiguration algorithms, which dynamically search the appropriate service configurations for different tasks. Additionally, we put forward a service reasoning and enabling process to tackle the service unavailable problems. A cost evaluation function for service configuration is also proposed to facilitate the selection of suitable configurations. We tested and evaluated the framework in both simulation system and physical environment. Specifically, by separately varying the parameter settings, system performance was measured in three aspects: the success rate of tasks, the average waiting time per task, and the average cost per task. The experiment results indicate that the versatile service framework provides self-adaptive capability and utilizes available resources efficiently under a range of different scenarios.
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Bonkhoff, Anna K., Flor A. Espinoza, Harshvardhan Gazula, Victor M. Vergara, Lukas Hensel, Jochen Michely, Theresa Paul, et al. "Acute ischaemic stroke alters the brain’s preference for distinct dynamic connectivity states." Brain 143, no. 5 (May 1, 2020): 1525–40. http://dx.doi.org/10.1093/brain/awaa101.
Повний текст джерелаАнотація:
Abstract Acute ischaemic stroke disturbs healthy brain organization, prompting subsequent plasticity and reorganization to compensate for the loss of specialized neural tissue and function. Static resting state functional MRI studies have already furthered our understanding of cerebral reorganization by estimating stroke-induced changes in network connectivity aggregated over the duration of several minutes. In this study, we used dynamic resting state functional MRI analyses to increase temporal resolution to seconds and explore transient configurations of motor network connectivity in acute stroke. To this end, we collected resting state functional MRI data of 31 patients with acute ischaemic stroke and 17 age-matched healthy control subjects. Stroke patients presented with moderate to severe hand motor deficits. By estimating dynamic functional connectivity within a sliding window framework, we identified three distinct connectivity configurations of motor-related networks. Motor networks were organized into three regional domains, i.e. a cortical, subcortical and cerebellar domain. The dynamic connectivity patterns of stroke patients diverged from those of healthy controls depending on the severity of the initial motor impairment. Moderately affected patients (n = 18) spent significantly more time in a weakly connected configuration that was characterized by low levels of connectivity, both locally as well as between distant regions. In contrast, severely affected patients (n = 13) showed a significant preference for transitions into a spatially segregated connectivity configuration. This configuration featured particularly high levels of local connectivity within the three regional domains as well as anti-correlated connectivity between distant networks across domains. A third connectivity configuration represented an intermediate connectivity pattern compared to the preceding two, and predominantly encompassed decreased interhemispheric connectivity between cortical motor networks independent of individual deficit severity. Alterations within this third configuration thus closely resembled previously reported ones originating from static resting state functional MRI studies post-stroke. In summary, acute ischaemic stroke not only prompted changes in connectivity between distinct networks, but it also caused characteristic changes in temporal properties of large-scale network interactions depending on the severity of the individual deficit. These findings offer new vistas on the dynamic neural mechanisms underlying acute neurological symptoms, cortical reorganization and treatment effects in stroke patients.
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Engelmann, Anna, and Admela Jukan. "A Combinatorial Reliability Analysis of Generic Service Function Chains in Data Center Networks." ACM Transactions on Modeling and Performance Evaluation of Computing Systems 6, no. 3 (September 30, 2021): 1–24. http://dx.doi.org/10.1145/3477046.
Повний текст джерелаАнотація:
In data center networks, the reliability of Service Function Chain (SFC)—an end-to-end service presented by a chain of virtual network functions (VNFs)—is a complex and specific function of placement, configuration, and application requirements, both in hardware and software. Existing approaches to reliability analysis do not jointly consider multiple features of system components, including, (i) heterogeneity, (ii) disjointness, (iii) sharing, (iv) redundancy, and (v) failure interdependency. To this end, we develop a novel analysis of service reliability of the so-called generic SFC, consisting of n = k + r sub-SFCs, whereby k ≥ 1 and r ≥ 0 are the numbers of arbitrary placed primary and backup (redundant) sub-SFCs, respectively. Our analysis is based on combinatorics and a reduced binomial theorem—resulting in a simple approach, which, however, can be utilized to analyze rather complex SFC configurations. The analysis is practically applicable to various VNF placement strategies in arbitrary data center configurations, and topologies and can be effectively used for evaluation and optimization of reliable SFC placements.
Дисертації з теми "Network function configuration"
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SPINOSO, SERENA. "Verification and Configuration of Software-based Networks." Doctoral thesis, Politecnico di Torino, 2017. http://hdl.handle.net/11583/2676611.
Повний текст джерелаАнотація:
The innovative trends of Network Function Virtualization (NFV) and Software Defined Networking (SDN) have posed never experienced opportunities in productive environments, like data centers. While NFV decouples software implementation of the network functions (e.g., DPI and NAT) from their physical counterparts, SDN is in charge of dynamically changing those functions to create network paths. One new opportunity of such Software-based networks is to make the network service-provisioning models more flexible, by enabling users to build their own service graphs: users can select the Virtual Network Functions (VNFs) to use and can specify how packets have to be processed and forwarded in their networks. In particular, this PhD thesis spans mostly topics related to the verification and configuration of service graphs.
For what concerns the challenges of network verification, our aim is to explore strategies that overcome the limitations of traditional techniques, which generally exploit complex modelling approaches and takes considerable verification times.
Thus we envision for verification techniques that are based on non-complex modelling approaches in order to be much more efficient than existing proposals. Under these conditions, such novel approaches may work at run-time and, in particular, may be performed before deploying the service graphs, in order to avoid unexpected network behaviours and detect errors as early as possible.
Another requirement is that verification should take a reasonable amount of time from a VNF Orchestrator point of view, with fair processing resources (e.g. CPU, memory and so on). This is because we are in the context of flexible services, where the reconfiguration of network functions can be frequently triggered, both in case of user request and in case of management events.
The first contribution of this thesis lays on the service graphs specification by means of forwarding policies (i.e, a high-level specification of how packet flows are forwarded). While the majority of the SDN verification tools operate on OpenFlow configurations, we have defined a formal model to detect a set of anomalies in forwarding policies (i.e., erroneous specifications that may cause misleading network conditions and states). The key factors that distinguish our work from existing approaches are both an early detection of policies anomalies (i.e., before translating such policies into OpenFlow entries), in order to speed up the fixing phase, without even starting service deployment, and a scalable approach that achieves verification times in the order of milliseconds for medium- large- sized networks.
Another advancement in network verification has been the possibility to verify networks including stateful VNFs, which are functions that may dynamically change the forwarding path of a traffic flow according to their local algorithms and states (e.g., IDSs). Our second contribution is thus a verification approach that models the network and the involved (possibly stateful) VNFs as a set of FOL formulas. Those formulas are passed to the off-the-shelf SMT (Satisfiability Modulo Theory) solver Z3 in order to verify some reachability-based properties. In particular, the proposed solution has been implemented in a tool released under the AGPLv3 license, named VeriGraph, which takes the functional configurations of all deployed VNFs (e.g., filtering rules on firewalls) into account to check the network. The adopted approach achieves verification times in the order of milliseconds, which is compliant with the timing limitations needed by a VNF Orchestrator.
Finally, for what concerns the configuration of VNFs, service graph deployment should include a strategy to deploy VNF configurations in order to fix bugs in case of verification failures. Here, we have to face several challenges like the different ways a network function may require for being configured (REST API, CLI, etc...) and the configuration semantic that depends on the function itself (e.g., router parameters are clearly different from firewall ones).
We conclude this thesis by proposing a model-based configuration approach, which means defining a representation of the main configuration parameters of a VNF. This VNF model is then automatically processed by further software modules in the VNF architecture to translate the configuration parameters into a particular format required by a VNF and to deliver the produced configuration into the VNF following one of the configuration strategies (e.g., REST, configuration file, etc.) already supported by the function. The achieved results of this last work, w.r.t. the current state of the art, are the exploitation of a model-driven approach that achieves a higher flexibility and the insertion of non-VNF-specific software modules to avoid changes in the VNF implementation.
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Lohmüller, Simon [Verfasser], and Bernhard [Akademischer Betreuer] Bauer. "Cognitive Self-Organizing Network Management for Automated Configuration of Self-Optimization SON Functions / Simon Lohmüller ; Betreuer: Bernhard Bauer." Augsburg : Universität Augsburg, 2019. http://d-nb.info/119169321X/34.
Повний текст джерела
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Drebitz, Eric [Verfasser], Andreas [Akademischer Betreuer] Kreiter, Andreas [Gutachter] Kreiter, and Michael [Gutachter] Koch. "The functional Role of Gamma-Band Synchronization in selective Routing and Network Configuration within the visual Cortex / Eric Drebitz ; Gutachter: Andreas Kreiter, Michael Koch ; Betreuer: Andreas Kreiter." Bremen : Staats- und Universitätsbibliothek Bremen, 2019. http://d-nb.info/1201479983/34.
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Vestberg, Martin. "Organizational dynamics : An investigation into a company's work culture and internal structures, to understand how it functions." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-69566.
Повний текст джерелаАнотація:
Background: Freno AB in Piteå has expanded rapidly in recent years and wishes to continue the expansion at aneven faster pace. At the same time, the company has noted that there are challenges to maintain high quality, goodeconomy and good marketability. The expansion sets demand on the finances for new premises and equipment aswell as for the development of new product models. The company shall also be able to provide aftermarket servicesand sell to new customers and market segments. In addition, there is requirements to develop skills in the newemployee’s and continuing to develop the existing employees. Furthermore, there are needs to invest in digitalsupport systems for design, production planning, logistics and financial functions as well as customer support andaftermarket.Freno´s goal is to ensure that the conditions for an expansion in each individual part is set before the expansion isstarted. The reason for the positioning is based on the fact, that there have been shortcomings in their businessactivities in most of the areas mentioned above and that many of the challenges lie in unclear communicationstructures. Task: In the thesis have I investigated how the company’s current knowledge and competence is transferred betweendifferent unites. The starting point has been stated in the fact that the employees are the ones who possessesinsight, knowledge and experience about the company's business and the opportunities and challenges that arecurrently in place. The study is based on the current state of Freno with a question about how streamlining communicationsbetween employees and departments can support a continued expansion. Method: The thesis is based on the methodology of Social Network Analysis, where the data regarding network,logic views and culture has been collected from the 12 employees. The interviewed answered via forms and hadthe opportunity to give open answers to some questions and give complementary information where deemed necessary.The required data was transferred to Excel and transformed into diagrams or further exported into Gephito create and understand the network configurations. The results were analyzed and interpreted via the theoreticalframework and cross referenced with other results to validate the conclusions. Results: The evaluation showed that competence and collaboration was not used in an optimal manner for maximizingproductivity. If the presented result is taken into consideration, will the company likely be able to predicthow strategic decisions can affect both existing and lacking communicational structures. A more transparent communicationbetween departments and with functioning support structure (i.e. production planning, updated schematics,goods, order stock with more) will probably affect the efficiency positively. Findings: The analysis showed that a combination between the bow-tie configuration, the imploded group structuresand a missing culture of the socio-technical multifunctional principle, inhibited the transfer and generationof new knowledge within the company. Causing a drift between the company’s knowledge and information needsand their combability view. The irregular network structures in combination with structural holes has made a heavyworkload on the centerpiece in the company. With that discovery was seven holes noted in the company network,which is assumed to have been handled by the centerpiece.Moreover, was a logical clash identified between the current and the previous CEO, changing the base for validatingactions and causing unclarity. Which in combination a chattered humane orientation culture and unclarity abouthow actions were validated via individual or groups acceptance. It was furthermore discovered that the workinstructions for the employed did define the employees influence via tools and technical support that enhanced thenetworks interaction patterns. Recommendations: The presented solutions includes team-building exercises, establishing a formal learningspace. Furthermore, is it recommended to establish up to seven formal meetings places and that knowledge typerequirements shall be identified and defined to secure what validates work related actions. It is also suggested toestablish mentorship protocols, in order to increase the knowledge transfer within the company and reduce therisks of bottleneck and locking effects. Keywords: Small to medium enterprises, iterative processes, Culture, resistance, influence, groupconfigurations, knowledge transfer, process perspective, social network analysis.
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Burns, Malcolm. "The (re)positioning of the Spanish metropolitan system within the European urban system (1986-2006)." Doctoral thesis, Universitat Politècnica de Catalunya, 2008. http://hdl.handle.net/10803/6137.
Повний текст джерелаАнотація:
The thesis seeks to demonstrate that during the period between 1986 and 2006, some of the principal cities of the Spanish metropolitan system1, have undergone significant change in terms of their European competitiveness. It is suggested that in the case of Madrid and Barcelona in particular this change has been of such a magnitude to proportion them a much more important place within the European spatial configuration than that which they occupied in the mid-1980s. Empirical evidence is offered to support this conjecture. The thesis lies wholly within the framework of spatial planning at the European territorial scale.It charts the comparative ascent of the Spanish cities from the moment of Spain's entry into the European Union (EU) in 1986 against the background of the development of European spatial policy, increased economic integration across Europe, the increased importance of the 'territorial' dimension of EU cohesion policy and an eventual waning of the applicability of the terminology of 'core' and 'periphery' to describe European geographical location.
Part One (Chapter 1) addresses the processes of urbanisation in general from a global perspective and then focuses on metropolitan growth in a number of different historical contexts from the start of the 19th Century. Parts Two (Chapters 2-5) and Three (Chapters 6-9) of the thesis carry out analyses at two contrasting but complementary spatial scales. Part Two examines the metropolitan growth processes in Spain, in the period since 1857, detecting the historical moments in which there were surges in the metropolitan populations of the seven cities of the metropolitan system. The dimensions of the spatial units of analysis corresponding to the seven Spanish metropolitan urban regions are described, based upon a methodology first developed by the Universitat Politècnica de Catalunya (UPC) in the context of a transnational spatial planning project of the INTERREG community initiative2. These seven spatial units form the basis for a socio-economic analysis of the structure of the metropolitan system, drawing upon data principally from the 2001 Census. If by 1930 one of the key characteristics of Spain's urban system was having not just one but two cities (Madrid and Barcelona) belonging to the group of 27 cities across the world with populations in excess of 1 million inhabitants3, this same differentiation between the country's two largest cities and the remainder of the urban system is equally valid today. Spain's urban system remains clearly bicephalous in being dominated by these same two cities in terms of demographic and economic strength.
Part Three begins by examining the evolution of European spatial policy against the background of an ever-enlarging European Union and changes with regard to the notion of cohesion - from a concept understood in terms of economic and social factors, to one in which the territorial dimension has become increasingly important. The European urban system is then critically examined through a number of key and influential studies, with particular regard to the rankings and hierarchies of metropolitan urban regions deriving there from and the changes in the placing of the Spanish metropolitan urban regions therein.
Taking inspiration from the seminal contribution of Manuel Castells4 in the context of the structural changes resulting from the informational and technological revolution, the thesis seeks to replicate the concept of a 'space of flows'. This is carried out through a 'network analysis' approach drawing upon air passenger flows between some 28 European metropolitan urban regions of the EU15+2 group of countries, enabling the analysis of the interaction between these 28 cities. This methodology enables arriving at a number of descriptive indicators which in turn, through the application of a multi-dimensional scaling mathematical technique, permits comparing the functional and physical distances of each of the metropolitan urban regions from the centre of the 'conceptual space of air passenger flows' and the centre of gravity. The resulting map of the functional positioning of the cities offers a spatial vision of metropolitan Europe quite different to that based upon Cartesian coordinates. Such an approach enables demonstrating that cities such as Barcelona, Madrid, Helsinki, Lisbon and Athens, traditionally considered as physically peripheral to the European core area, appear to be more favourably positioned in functional terms. Furthermore in the case of Spain the results indicate that Barcelona lies closer to the centre of the conceptual 'space of air passenger flows' than Madrid.
In light of this empirical evidence, together with the signs of increased economic integration across some parts of Spain, the prospects of Spain forming part of a wider European territorial concentration of flows and activities, and the recognition of the territorial capital of Madrid and Barcelona within recent EU spatial policy declarations, the thesis concludes in Part Four that these two metropolitan regions have undergone a clear consolidation and (re)positioning within the European metropolitan hierarchy.
La tesis trata de demostrar que durante el período entre 1986 y 2006, unas de las principales ciudades del sistema metropolitano español, han experimentado un cambio significativo en términos de su competitividad europea. Es sugerido que en el caso de Madrid y Barcelona en particular este cambio ha sido de tal magnitud para proporcionarlas un lugar mucho más importante dentro de la configuración territorial espacial europea que dichas ciudades ocuparon en el mediado de los años 80. Se ofrece evidencia empírica para sostener esta conjetura. La tesis se sitúa dentro demarco de la ordenación territorial a la escala europea. Traza la subida relativa de las ciudades españolas desde el momento de la entrada de España en la Unión Europea(UE) en 1986, contra el fondo del desarrollo de la política territorial europea, la integración económica aumentada a través de Europa, la importancia aumentada de la dimensión "territorial" de la política de la cohesión de UE y una eventual disminución de la aplicabilidad de la terminología del "centro" y la "periferia" para describir la ubicación geográfica europea. La Primera Parte (Capítulo 1) está dirigida a evaluar los procesos de la urbanización en general, desde una perspectiva global, y después se centra en examinar el crecimiento metropolitano en varios contextos históricos, a partir del comienzo del siglo XIX. La Segunda (Capítulos 2-5) y Tercera Partes (Capítulos 6-9) de la tesis llevan a cabo unos análisis en dos escalas territoriales contrastantes pero complementarias. La Segunda Parte examina los procesos del crecimiento metropolitano en España, a partir de 1857, discerniendo los momentos históricos en los que había oleadas en las poblaciones ‘metropolitanas’ de las siete ciudades del sistema metropolitano. Se describe las dimensiones de las unidades espaciales de análisis que corresponden a las siete regiones urbanas metropolitanas españolas, basadas en una metodología desarrollado por el Universidad Politécnica de Cataluña (UPC) en el contexto de un proyecto trasnacional de ordenación territorial de la iniciativa comunitaria INTERREG. Estas siete unidades espaciales forman la base para un análisis socioeconómico de la estructura del sistema metropolitano, utilizando datos principalmente del 2001 Censo. Si en el año 1930 una de las características claves del sistema urbano de España era de tener no sólo una, pero dos ciudades (Madrid y Barcelona) perteneciendo al grupo de 27 ciudades a través del mundo con poblaciones por encima de 1 millón de habitantes, esta misma diferenciación entre las dos ciudades más grandes del país y el resto del sistema urbano es hoy igualmente válida. El sistema urbano de España se queda claramente bicéfalo en ser dominado por estas mismas dos ciudades en términos de fuerza demográfica y económica. La Tercera Parte comienza examinando la evolución de la política territorial europea contra el fondo de una Unión Europea cada vez más grande y los cambios con respecto a la noción de la cohesión – de un concepto entendido en términos de factores económicos y sociales, a uno en que la dimensión territorial ha llegado a ser cada vez más importante. A continuación, se examina de manera crítica el sistema urbano europeo mediante algunos estudios influyentes, con la consideración particular a las clasificaciones y las jerarquías de las regiones urbanas metropolitanas que derivan de estos estudios, y a los cambios en la colocación de las regiones urbanas metropolitanas españolas en dichos estudios. Tomando inspiración de la contribución seminal de Manuel Castells en el contexto de los cambios estructurales que resultan de la revolución de información y tecnológica, la tesis trata de replicar el concepto de un 'espacio de flujos'. Esto es llevado a cabo por un enfoque de "network analysis" que utiliza los flujos de pasajeros aéreos entre unas 28 regiones urbanas metropolitanas europeas del grupo de EU15+2 países, permitiendo el análisis de la interacción entre estas 28 ciudades. Esta metodología permite desarrollar varios indicadores descriptivos que permiten, a su vez, por la aplicación de una técnica matemática de escalamiento multi-dimensional, comparar las distancias funcionales y físicas de cada una de las regiones urbanas metropolitanas del centro del 'espacio conceptual de flujos de pasajeros aéreos’ y el centro de la gravedad. El mapa resultante del posicionamiento funcional de las ciudades ofrece una visión espacial de Europa metropolitana bastante diferente a la que se base en los coordinados cartesianos. Tal enfoque permite demostrar que ciudades como Barcelona, Madrid, Helsinki, Lisboa y Atenas, consideradas tradicionalmente como físicamente periféricas al área central de europea, parecen ser posicionadas más favorablemente en términos funcionales. Además, en el caso de España, los resultados indican que Barcelona queda más cerca al centro del conceptual 'espacio de flujos de pasajero aéreos’ que Madrid. A la luz de esta evidencia empírica, junto con los signos de la integración económica aumentada a través de algunas partes de España, las perspectivas de que España formará parte una más amplia concentración territorial europea de flujos y actividades y del reconocimiento de la capital territorial de Madrid y Barcelona dentro de las recientes las declaraciones de política territorial de la UE, la tesis concluye, en la Cuarta Parte que estas dos regiones metropolitanas han experimentado una clara consolidación y (re)posicionamiento dentro de la jerarquía metropolitana europea.
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Burns, Malcolm C. "The (re)positioning of the Spanish metropolitan system within the European urban system (1986-2006)." Doctoral thesis, Universitat Politècnica de Catalunya, 2008. http://hdl.handle.net/10803/6137.
Повний текст джерелаАнотація:
The thesis seeks to demonstrate that during the period between 1986 and 2006, some of the principal cities of the Spanish metropolitan system1, have undergone significant change in terms of their European competitiveness. It is suggested that in the case of Madrid and Barcelona in particular this change has been of such a magnitude to proportion them a much more important place within the European spatial configuration than that which they occupied in the mid-1980s. Empirical evidence is offered to support this conjecture. The thesis lies wholly within the framework of spatial planning at the European territorial scale.It charts the comparative ascent of the Spanish cities from the moment of Spain's entry into the European Union (EU) in 1986 against the background of the development of European spatial policy, increased economic integration across Europe, the increased importance of the 'territorial' dimension of EU cohesion policy and an eventual waning of the applicability of the terminology of 'core' and 'periphery' to describe European geographical location.Part One (Chapter 1) addresses the processes of urbanisation in general from a global perspective and then focuses on metropolitan growth in a number of different historical contexts from the start of the 19th Century. Parts Two (Chapters 2-5) and Three (Chapters 6-9) of the thesis carry out analyses at two contrasting but complementary spatial scales. Part Two examines the metropolitan growth processes in Spain, in the period since 1857, detecting the historical moments in which there were surges in the metropolitan populations of the seven cities of the metropolitan system. The dimensions of the spatial units of analysis corresponding to the seven Spanish metropolitan urban regions are described, based upon a methodology first developed by the Universitat Politècnica de Catalunya (UPC) in the context of a transnational spatial planning project of the INTERREG community initiative2. These seven spatial units form the basis for a socio-economic analysis of the structure of the metropolitan system, drawing upon data principally from the 2001 Census. If by 1930 one of the key characteristics of Spain's urban system was having not just one but two cities (Madrid and Barcelona) belonging to the group of 27 cities across the world with populations in excess of 1 million inhabitants3, this same differentiation between the country's two largest cities and the remainder of the urban system is equally valid today. Spain's urban system remains clearly bicephalous in being dominated by these same two cities in terms of demographic and economic strength.Part Three begins by examining the evolution of European spatial policy against the background of an ever-enlarging European Union and changes with regard to the notion of cohesion - from a concept understood in terms of economic and social factors, to one in which the territorial dimension has become increasingly important. The European urban system is then critically examined through a number of key and influential studies, with particular regard to the rankings and hierarchies of metropolitan urban regions deriving there from and the changes in the placing of the Spanish metropolitan urban regions therein.Taking inspiration from the seminal contribution of Manuel Castells4 in the context of the structural changes resulting from the informational and technological revolution, the thesis seeks to replicate the concept of a 'space of flows'. This is carried out through a 'network analysis' approach drawing upon air passenger flows between some 28 European metropolitan urban regions of the EU15+2 group of countries, enabling the analysis of the interaction between these 28 cities. This methodology enables arriving at a number of descriptive indicators which in turn, through the application of a multi-dimensional scaling mathematical technique, permits comparing the functional and physical distances of each of the metropolitan urban regions from the centre of the 'conceptual space of air passenger flows' and the centre of gravity. The resulting map of the functional positioning of the cities offers a spatial vision of metropolitan Europe quite different to that based upon Cartesian coordinates. Such an approach enables demonstrating that cities such as Barcelona, Madrid, Helsinki, Lisbon and Athens, traditionally considered as physically peripheral to the European core area, appear to be more favourably positioned in functional terms. Furthermore in the case of Spain the results indicate that Barcelona lies closer to the centre of the conceptual 'space of air passenger flows' than Madrid.In light of this empirical evidence, together with the signs of increased economic integration across some parts of Spain, the prospects of Spain forming part of a wider European territorial concentration of flows and activities, and the recognition of the territorial capital of Madrid and Barcelona within recent EU spatial policy declarations, the thesis concludes in Part Four that these two metropolitan regions have undergone a clear consolidation and (re)positioning within the European metropolitan hierarchy.
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Luka, Mejić. "Методе аутоматске конфигурације софт сензора". Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2019. https://www.cris.uns.ac.rs/record.jsf?recordId=110926&source=NDLTD&language=en.
Повний текст джерелаАнотація:
Математички модели за естимацију тешко мерљивих величина називајусе софт сензорима. Процес формирања софт сензора није тривијалан иквалитет естимације тешко мерљиве величине директно зависи одначина формирања. Недостаци постојећих алгоритама за формирањеспречавају аутоматску конфигурацију софт сензора. У овом раду суреализовани нови алгоритми који имају за сврху аутоматизацијуконфигурације софт сензора. Реализовани алгоритми решавајупроблеме проналаска оптималног сета улаза у софт сензор и кашњењасваког од њих као и одабира структуре и начина обуке софт сензоразаснованих на вештачким неуронским мрежама са радијално базиранимфункцијама.Matematički modeli za estimaciju teško merljivih veličina nazivajuse soft senzorima. Proces formiranja soft senzora nije trivijalan ikvalitet estimacije teško merljive veličine direktno zavisi odnačina formiranja. Nedostaci postojećih algoritama za formiranjesprečavaju automatsku konfiguraciju soft senzora. U ovom radu surealizovani novi algoritmi koji imaju za svrhu automatizacijukonfiguracije soft senzora. Realizovani algoritmi rešavajuprobleme pronalaska optimalnog seta ulaza u soft senzor i kašnjenjasvakog od njih kao i odabira strukture i načina obuke soft senzorazasnovanih na veštačkim neuronskim mrežama sa radijalno baziranimfunkcijama.
Mathematical models that are used for estimation of variables that can not bemeasured in real time are called soft sensors. Creation of soft sensor is acomplex process and quality of estimation depends on the way soft sensor iscreated. Restricted applicability of existing algorithms is preventing automaticconfiguration of soft sensors. This paper presents new algorithms that areproviding automatic configuration of soft sensors. Presented algorithms arecapable of determing optimal subset of soft sensor inputs and their timedelays, as well as optimal architecture and automatic training of the softsensors that are based on artificial radial basis function networks.
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Tröger, Ralph. "Supply Chain Event Management – Bedarf, Systemarchitektur und Nutzen aus Perspektive fokaler Unternehmen der Modeindustrie." Doctoral thesis, Universitätsbibliothek Leipzig, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-155014.
Повний текст джерелаАнотація:
Supply Chain Event Management (SCEM) bezeichnet eine Teildisziplin des Supply Chain Management und ist für Unternehmen ein Ansatzpunkt, durch frühzeitige Reaktion auf kritische Ausnahmeereignisse in der Wertschöpfungskette Logistikleistung und -kosten zu optimieren.
Durch Rahmenbedingungen wie bspw. globale Logistikstrukturen, eine hohe Artikelvielfalt und volatile Geschäftsbeziehungen zählt die Modeindustrie zu den Branchen, die für kritische Störereignisse besonders anfällig ist. In diesem Sinne untersucht die vorliegende Dissertation nach einer Beleuchtung der wesentlichen Grundlagen zunächst, inwiefern es in der Modeindustrie tatsächlich einen Bedarf an SCEM-Systemen gibt.
Anknüpfend daran zeigt sie nach einer Darstellung bisheriger SCEM-Architekturkonzepte Gestaltungsmöglichkeiten für eine Systemarchitektur auf, die auf den Designprinzipien der Serviceorientierung beruht. In diesem Rahmen erfolgt u. a. auch die Identifikation SCEM-relevanter Business Services. Die Vorzüge einer serviceorientierten Gestaltung werden detailliert anhand der EPCIS (EPC Information Services)-Spezifikation illustriert.
Abgerundet wird die Arbeit durch eine Betrachtung der Nutzenpotenziale von SCEM-Systemen. Nach einer Darstellung von Ansätzen, welche zur Nutzenbestimmung infrage kommen, wird der Nutzen anhand eines Praxisbeispiels aufgezeigt und fließt zusammen mit den Ergebnissen einer Literaturrecherche in eine Konsolidierung von SCEM-Nutzeffekten. Hierbei wird auch beleuchtet, welche zusätzlichen Vorteile sich für Unternehmen durch eine serviceorientierte Architekturgestaltung bieten.
In der Schlussbetrachtung werden die wesentlichen Erkenntnisse der Arbeit zusammengefasst und in einem Ausblick sowohl beleuchtet, welche Relevanz die Ergebnisse der Arbeit für die Bewältigung künftiger Herausforderungen innehaben als auch welche Anknüpfungspunkte sich für anschließende Forschungsarbeiten ergeben.
Книги з теми "Network function configuration"
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Billings, S. A. Radial basis function network configuration using genetic algorithms =: By S.A.Billings and G.L.Zheng. Sheffield: University of Sheffield, Dept. of Automatic Control and Systems Engineering, 1994.
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Billings, S. A. Radial basis function network configuration using mutual information and the orthogonal least squares algorithm. Sheffield: University of Sheffield, Dept. of Automatic Control and Systems Engineering, 1995.
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3
Busacca, Maurizio, and Roberto Paladini. Collaboration Age. Venice: Fondazione Università Ca’ Foscari, 2020. http://dx.doi.org/10.30687/978-88-6969-424-0.
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Recently, public policies of urban regeneration have intensified and multiplied. They are being promoted with the aim to start social and economic dynamics within the local context which is subject to intervention. From the empirical analysis, we realise that such activities are mainly implemented by three subjects or by mixed coalitions (public institutions, actors of the third sector and companies). Within them, each player is moved by a multiplicity of interests and goals that go beyond their own nature – public interest, market and mutualism – and tend to redefine themselves, thus becoming hybrid forms of production of value (social, economic, cultural). By studying a number Italian and Catalan cases, this essay deals with the theory that, under specific conditions and configurations, a collaborative direction – of organization, production and design – would give life to successful procedures, even without the identification of a one-best-way. The collaboration is not simply a choice of operation, but a real production method which mobilises social resources to create hybrid solutions – between state, market and society – to complex issues that could not be faced solely with the use of the rationale of action of one among the three actors. In this framework, the systems of relations and interactions between players and shared capital become an essential condition for the success of every initiative of urban redevelopment, or failure thereof. Such initiatives are brought to life by the strategic role of individuals who foster connections as well as the dissemination of non-redundant information between social networks, and collective and individual actors which would otherwise be separated and barely able to communicate and collaborate with each other. In addition to the functions carried out by knowledge brokers, that have been extensively described in organisational studies and economic sociology, the aforementioned figures act as real social enzymes, that is to say, they handle the available information and function as catalysts of social processes of production of knowledge. Moreover, they increase the reaction speed, working on mechanisms which control the spontaneity.
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Newman, Mark. The configuration model. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198805090.003.0012.
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A discussion of the most fundamental of network models, the configuration model, which is a random graph model of a network with a specified degree sequence. Following a definition of the model a number of basic properties are derived, including the probability of an edge, the expected number of multiedges, the excess degree distribution, the friendship paradox, and the clustering coefficient. This is followed by derivations of some more advanced properties including the condition for the existence of a giant component, the size of the giant component, the average size of a small component, and the expected diameter. Generating function methods for network models are also introduced and used to perform some more advanced calculations, such as the calculation of the distribution of the number of second neighbors of a node and the complete distribution of sizes of small components. The chapter ends with a brief discussion of extensions of the configuration model to directed networks, bipartite networks, networks with degree correlations, networks with high clustering, and networks with community structure, among other possibilities.
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Raff, Lionel, Ranga Komanduri, Martin Hagan, and Satish Bukkapatnam. Neural Networks in Chemical Reaction Dynamics. Oxford University Press, 2012. http://dx.doi.org/10.1093/oso/9780199765652.001.0001.
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This monograph presents recent advances in neural network (NN) approaches and applications to chemical reaction dynamics. Topics covered include: (i) the development of ab initio potential-energy surfaces (PES) for complex multichannel systems using modified novelty sampling and feedforward NNs; (ii) methods for sampling the configuration space of critical importance, such as trajectory and novelty sampling methods and gradient fitting methods; (iii) parametrization of interatomic potential functions using a genetic algorithm accelerated with a NN; (iv) parametrization of analytic interatomic potential functions using NNs; (v) self-starting methods for obtaining analytic PES from ab inito electronic structure calculations using direct dynamics; (vi) development of a novel method, namely, combined function derivative approximation (CFDA) for simultaneous fitting of a PES and its corresponding force fields using feedforward neural networks; (vii) development of generalized PES using many-body expansions, NNs, and moiety energy approximations; (viii) NN methods for data analysis, reaction probabilities, and statistical error reduction in chemical reaction dynamics; (ix) accurate prediction of higher-level electronic structure energies (e.g. MP4 or higher) for large databases using NNs, lower-level (Hartree-Fock) energies, and small subsets of the higher-energy database; and finally (x) illustrative examples of NN applications to chemical reaction dynamics of increasing complexity starting from simple near equilibrium structures (vibrational state studies) to more complex non-adiabatic reactions. The monograph is prepared by an interdisciplinary group of researchers working as a team for nearly two decades at Oklahoma State University, Stillwater, OK with expertise in gas phase reaction dynamics; neural networks; various aspects of MD and Monte Carlo (MC) simulations of nanometric cutting, tribology, and material properties at nanoscale; scaling laws from atomistic to continuum; and neural networks applications to chemical reaction dynamics. It is anticipated that this emerging field of NN in chemical reaction dynamics will play an increasingly important role in MD, MC, and quantum mechanical studies in the years to come.
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Fox, Raymond. The Use of Self. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780190616144.001.0001.
Повний текст джерелаАнотація:
This monograph presents recent advances in neural network (NN) approaches and applications to chemical reaction dynamics. Topics covered include: (i) the development of ab initio potential-energy surfaces (PES) for complex multichannel systems using modified novelty sampling and feedforward NNs; (ii) methods for sampling the configuration space of critical importance, such as trajectory and novelty sampling methods and gradient fitting methods; (iii) parametrization of interatomic potential functions using a genetic algorithm accelerated with a NN; (iv) parametrization of analytic interatomic potential functions using NNs; (v) self-starting methods for obtaining analytic PES from ab inito electronic structure calculations using direct dynamics; (vi) development of a novel method, namely, combined function derivative approximation (CFDA) for simultaneous fitting of a PES and its corresponding force fields using feedforward neural networks; (vii) development of generalized PES using many-body expansions, NNs, and moiety energy approximations; (viii) NN methods for data analysis, reaction probabilities, and statistical error reduction in chemical reaction dynamics; (ix) accurate prediction of higher-level electronic structure energies (e.g. MP4 or higher) for large databases using NNs, lower-level (Hartree-Fock) energies, and small subsets of the higher-energy database; and finally (x) illustrative examples of NN applications to chemical reaction dynamics of increasing complexity starting from simple near equilibrium structures (vibrational state studies) to more complex non-adiabatic reactions. The monograph is prepared by an interdisciplinary group of researchers working as a team for nearly two decades at Oklahoma State University, Stillwater, OK with expertise in gas phase reaction dynamics; neural networks; various aspects of MD and Monte Carlo (MC) simulations of nanometric cutting, tribology, and material properties at nanoscale; scaling laws from atomistic to continuum; and neural networks applications to chemical reaction dynamics. It is anticipated that this emerging field of NN in chemical reaction dynamics will play an increasingly important role in MD, MC, and quantum mechanical studies in the years to come.
Частини книг з теми "Network function configuration"
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Troia, Sebastian. "Machine-Learning Defined Networking: Towards Intelligent Networks." In Special Topics in Information Technology, 3–12. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-62476-7_1.
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AbstractWith the advent of 5G technology and an ever-increasing traffic demand, today Communication Service Providers (CSPs) experience a progressive congestion of their networks. The operational complexity, the use of manual configuration, the static nature of current technologies together with fast-changing traffic profiles lead to: inefficient network utilization, over-provisioning of resources and very high Capital Expenditures (CapEx) and Operational Expenses (OpEx). This situation is forcing the CSPs to change their underlying network technologies, and have started to look at new technological solutions that increase the level of programmability, control, and flexibility of configuration, while reducing the overall costs related to network operations. Software Define Networking (SDN), Network Function Virtualization (NFV) and Machine Learning (ML) are accepted as effective solutions to reduce CapEx and OpEx and to boost network innovation. This chapter summarizes the content of my Ph.D. thesis, by presenting new ML-based approaches in order to efficiently optimize resources in 5G metro-core SDN/NFV networks. The main goal is to provide the modern CSP with intelligent and dynamic network optimization tools in order to address the requirements of increasing traffic demand and 5G technology.
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Okita, Hideki, Masahiro Yoshizawa, Keitaro Uehara, Kazuhiko Mizuno, Toshiaki Tarui, and Ken Naono. "Proposal of Virtual Network Configuration Acquisition Function for Data Center Operations and Management System." In Euro-Par 2010 Parallel Processing Workshops, 625–32. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21878-1_77.
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Mwanje, Stephen S., Janne Ali Tolppa, and Tsvetko Tsvetkov. "A Framework for Cell-Association Auto Configuration of Network Functions in Cellular Networks." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 68–80. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-26925-2_6.
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Wang, Zhengqi, Yuan Ji, Weibo Zheng, and Mingyan Li. "Multi-level Network Software Defined Gateway Forwarding System Based on Multus." In Proceeding of 2021 International Conference on Wireless Communications, Networking and Applications, 166–76. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2456-9_18.
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AbstractIn order to solve the problem that the data forwarding performance requirements of the security gateway are becoming higher and higher, the difficulty of operation and maintenance is increasing day by day, and the physical resource configuration strategy is constantly changing, a multi-level network software defined gateway forwarding system based on Multus is proposed and implemented. On the basis of kubernetes' centralized management and control of the service cluster, different types of CNI plugins are dynamically called for interface configuration, At the same time, it supports the multi-level network of kernel mode and user mode, separates the control plane and data plane of the forwarding system, and enhances the controllability of the system service. At the same time, the load balancing module based on user mode protocol stack is introduced to realize the functions of dynamic scaling, smooth upgrade, cluster monitoring, fault migration and so on without affecting the forwarding performance of the system.
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Asami, Yasushi. "Introduction: City Planning and New Technology." In New Frontiers in Regional Science: Asian Perspectives, 261–65. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-8848-8_17.
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AbstractIn Part III, titled “City Planning and New Technology,” we discuss two topics, namely, compact cities and real estate technology in Japan.Promotion of compact cities is regarded as a high priority issue in urban policies in the era of population decrease. The Act on Special Measures concerning Urban Reconstruction in 2014 was revised to institutionalize the framework for the Location Normalization Plan, a plan for local governments to build compact cities to manage population decline and aging urban infrastructure while placing less burden on environment. Three chapters are devoted to issues related to this movement. In Chap.10.1007/978-981-15-8848-8_18, Ishikawa (2020) discusses how urban functions can be guided by residents’ perspectives. To build a compact city, various day-to-day services must be placed proximal to residential areas; however, some services must be placed at a certain distance from residences because of land use restrictions. Therefore, we must determine the uses allowed in residential areas. In Chap.10.1007/978-981-15-8848-8_19, Morimoto (2020) discusses the history of major contributions made by the development of transportation facilities to urban spread, the important role of traffic facilities to guide land use toward desirable purposes, and impact of self-driving vehicles on land use. In Chap.10.1007/978-981-15-8848-8_20, Ogushi (2020) explains how the Location Normalization Plan in Niigata City was formed in detail.Real estate technology refers to real estate business-related services that use new technology. Several new services based on new technology have been introduced in the field of real estate in Japan. Three chapters are devoted to issues related to real estate technology. In Chap.10.1007/978-981-15-8848-8_21, Narimoto (2020) explains the outline of real estate technology services in Japan and identifies legal problems associated with handling of information. In Chap.10.1007/978-981-15-8848-8_22, Nishio and Ito (2020) report on creating a sky view factor calculating system that uses Google Street View. Sky view factor is a term that refers to a configuration factor for the amount of sky in a hypothetical hemisphere. In Chap.10.1007/978-981-15-8848-8_23, Kiyota (2020) explains the transition of neural network research and characteristics of deep learning and introduces a system that detects category inconsistencies in real estate property photographs submitted by real estate companies by using deep learning and a system that detects indexes associated with ease of living based on property photographs.
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Zverovich, Vadim. "Traffic Networks: Wardrop Equilibrium and Braess’ Paradox." In Modern Applications of Graph Theory, 37–108. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198856740.003.0002.
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The well-known Braess’ paradox illustrates situations when adding a new link to a transport network might lead to an equilibrium state in which travel times of users will increase. Here, Braess’ paradox and the equilibrium state are analysed in the classical network configuration introduced by Braess in 1968. This network configuration is of fundamental significance because Valiant and Roughgarden showed in 2006 that ‘the “global” behaviour of an equilibrium flow in a large random network is similar to that in Braess’ original four-node example. Moreover, the probability of Braess’ paradox occurring in the classical network configuration will be studied, with particular emphasis on the Erlang distribution of parameters of the travel time function. This distribution is important in the context of traffic networks. However, other distributions will be analysed as well because Braess’ paradox can be observed in various applied contexts such as telecommunication networks and power transmission networks.
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Liu, Zheng. "Structuring and Managing Supply Network." In Operations and Service Management, 170–82. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-3909-4.ch008.
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The concept of supply network has extended supply chain across national borders towards globalization. The aim of this chapter is to provide researchers, business practitioners and university students a picture of the architecture of supply networks. By analyzing two main trends of studies in the field of supply network management, components of supply network are classified into structural and infrastructural factors. Also a comparison is made to identify the difference between supply network and traditionally factory-based manufacturing system. Based on the literature review, a conceptual framework is further proposed which describes the supply network from four essential perspectives: Role/function, Relationship/alliance, Configuration/reconfiguration, and Risk and crisis management. After presenting detailed models and decision making areas of each perspective, suggestions are given on some emerging topics.
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Liu, Zheng. "Structuring and Managing Supply Network." In Handbook of Research on Global Supply Chain Management, 341–53. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-4666-9639-6.ch019.
Повний текст джерелаАнотація:
The concept of supply network has extended supply chain across national borders towards globalization. The aim of this chapter is to provide researchers, business practitioners and university students a picture of the architecture of supply networks. By analyzing two main trends of studies in the field of supply network management, components of supply network are classified into structural and infrastructural factors. Also a comparison is made to identify the difference between supply network and traditionally factory-based manufacturing system. Based on the literature review, a conceptual framework is further proposed which describes the supply network from four essential perspectives: Role/function, Relationship/alliance, Configuration/reconfiguration, and Risk and crisis management. After presenting detailed models and decision making areas of each perspective, suggestions are given on some emerging topics.
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Daniel, David K., and Vikramaditya Bhandari. "Neural Network Model to Estimate and Predict Cell Mass Concentration in Lipase Fermentation." In Advances in Secure Computing, Internet Services, and Applications, 303–16. IGI Global, 2014. http://dx.doi.org/10.4018/978-1-4666-4940-8.ch015.
Повний текст джерелаАнотація:
Lipase is an industrially important enzyme with major use in food industries. The demand of lipase is increasing every year. An online prediction of cell mass concentration is of great value in real time process involving the production of lipase. In the current work, the use of a back-propagation multilayer neural network to predict cell mass during lipase production by Rhizopus delemar NRRL 1472 is targeted. Network training data with respect to time is generated by carrying out experiments in laboratory. The fungus is grown in erlenmeyer flasks at initial pH of 5.6, temperature of 30ºC, and at 150 rpm. During the experiments, readings for cell mass growth are collected in specific period of time. By the training data, an artificial neural network model programmed in MATLAB for Windows is trained and used for prediction of cell mass. The Levenberg-Marquardt algorithm with back-propagation is used in the network to get the optimized weights. The optimum network configuration with different activation function and the number of nodes in the hidden layer are identified by trial and error method. Sigmoid unipolar activation function is 2-5-1, whereas logarithmoid and sigmoid bipolar is 2-3-1. These are chosen according to the values of Sum of Square of Errors (SSE), Root Mean Square (RMS) training and testing. The sigmoid unipolar activation function gives a good fit for estimated value with network configuration 2-5-1, which could be used for generalization.
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Han, Zhike, Bin Yang, Yiren Du, Xingyu Du, Hao Xing, and Qinnan Cheng. "Realistic Face Image Generation System Based on GANs." In Fuzzy Systems and Data Mining VI. IOS Press, 2020. http://dx.doi.org/10.3233/faia200707.
Повний текст джерелаАнотація:
The purpose of this paper is to study the help of generative adversarial networks (GAN) for face generation, and to explore whether the network can have an effect on complex face generation. Training an image translation neural network model based on a generative adversarial network with the help of a large number of real human face data sets. Using the CV2-based face tagging algorithm and the HED-based face edge extraction algorithm to obtain input information, and then based on the translation neural network model Developing a face generation system through Tensorflow, Torch and other frameworks to realize the function of generating real faces through sketches or “changing faces” through existing faces. Finally, this model provides training configuration and training information.
Тези доповідей конференцій з теми "Network function configuration"
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Chahed, Hamza, and Andreas J. Kassler. "Software-Defined Time Sensitive Networks Configuration and Management." In 2021 IEEE Conference on Network Function Virtualization and Software Defined Networks (NFV-SDN). IEEE, 2021. http://dx.doi.org/10.1109/nfv-sdn53031.2021.9665120.
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Pelay, Johan, Fabrice Guillemin, and Olivier Barais. "Verifying the configuration of virtualized network functions in software defined networks." In 2017 IEEE Conference on Network Function Virtualization and Software-Defined Networks (NFV-SDN). IEEE, 2017. http://dx.doi.org/10.1109/nfv-sdn.2017.8169874.
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Yuan, Hui, Miquel Garrich Alabarce, Emilio Hugues-Salas, Georgios Zervas, and Dimitra Simeonidou. "Function Placement and Configuration for Power Balanced Network Function Programmable Optical Nodes." In Optical Fiber Communication Conference. Washington, D.C.: OSA, 2015. http://dx.doi.org/10.1364/ofc.2015.w3j.2.
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Nakagawa, Yukihiro, Chunghan Lee, Kazuki Hyoudou, Shinji Kobayashi, Osamu Shiraki, Jun Tanaka, and Tomohiro Ishihara. "Dynamic virtual network configuration between containers using physical switch functions for NFV infrastructure." In 2015 IEEE Conference on Network Function Virtualization and Software-Defined Networks (NFV-SDN). IEEE, 2015. http://dx.doi.org/10.1109/nfv-sdn.2015.7387421.
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Bringhenti, Daniele, Guido Marchetto, Riccardo Sisto, and Fulvio Valenza. "A novel approach for security function graph configuration and deployment." In 2021 IEEE 7th International Conference on Network Softwarization (NetSoft). IEEE, 2021. http://dx.doi.org/10.1109/netsoft51509.2021.9492654.
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Ren, Jie, Zongzhi Zhu, Cuiping Pu, and An Yu. "Research of control network configuration technology based on function block." In 2015 International conference on Applied Science and Engineering Innovation. Paris, France: Atlantis Press, 2015. http://dx.doi.org/10.2991/asei-15.2015.24.
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KIM, Suyeon, Chang Su LEE, and Hyun K. KAHNG. "New Function and Configuration of Future Network for Blockchain Platform Operation." In 2019 21st International Conference on Advanced Communication Technology (ICACT). IEEE, 2019. http://dx.doi.org/10.23919/icact.2019.8701938.
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Taniguchi, Akihiko, and Norihiko Shinomiya. "A Method of Service Function Chain Configuration to Minimize Computing and Network Resources for VNF Failures." In TENCON 2021 - 2021 IEEE Region 10 Conference (TENCON). IEEE, 2021. http://dx.doi.org/10.1109/tencon54134.2021.9707217.
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Akagi, Satoru, Ben York, Mobolaji Bello, Hideo Ishii, and Yasuhiro Hayashi. "Configuration of Large-Scale Battery System with Volt-VAR function in Distribution Network with Advanced Load Tap Changer Control." In 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC). IEEE, 2018. http://dx.doi.org/10.1109/pvsc.2018.8548085.
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Tolok, Alexey, and Nataliya Tolok. "Local R-Functional Modelling (LRFM)." In 31th International Conference on Computer Graphics and Vision. Keldysh Institute of Applied Mathematics, 2021. http://dx.doi.org/10.20948/graphicon-2021-3027-618-628.
Повний текст джерелаАнотація:
A new class of functions - "FLOZ- functions" (Functions of LOcal Zeroing out), which makes it possible to form the zero domain of a scalar-valued multidimensional function of complex configuration by means of R-functional modelling is considered. We represent the solution of the inverse problem of analytical geometry for a non-convex contour construction obtained by V.L. Rvachev’s mathematical apparatus of R-functions. The problems of constructing an algorithm for automation the proposed by V.L. Rvachev solutions are described. Presented arguments show the complexity of constructing an algorithm based on recursive attachment. The functional voxel model was created in the RANOK 2D system. An approach to the function of local zeroing out (FLOZ-function) construction for the general (multidimensional) case is described. A two-dimensional function of local zeroing out is selected for solving the problem of a non-convex contour constructing. It is shown that the function of local zeroing out allows to create the sequential algorithm of automation the non-convex contour construction. Examples of automation the considered problems of V.L. Rvachev to the non- convex contour construction are given. The function of local zeroing out for three-dimensional space (3D FLOZ-function) is considered. An example of functional voxel modelling of a 3D sphere model based on a triangulated network consisted of 80 triangles is given.
Звіти організацій з теми "Network function configuration"
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She, Ruifeng, and Yanfeng Ouyang. Generalized Link-Cost Function and Network Design for Dedicated Truck-Platoon Lanes to Improve Energy, Pavement Sustainability, and Traffic Efficiency. Illinois Center for Transportation, November 2021. http://dx.doi.org/10.36501/0197-9191/21-037.
Повний текст джерелаАнотація:
Recent development of autonomous and connected trucks (ACT) has provided the freight industry with the option of using truck platooning to improve fuel efficiency, traffic throughput, and safety. However, closely spaced and longitudinally aligned trucks impose frequent and concentrated loading on pavements, which often accelerates pavement deterioration and increases the life cycle costs for the highway agency. Also, effectiveness of truck platooning can be maximized only in dedicated lanes; and its benefits and costs need to be properly balanced between stakeholders. This paper proposes a network-design model to optimize (i) placement of dedicated truck-platoon lanes and toll price in a highway network, (ii) pooling and routing of ACT traffic from multiple origins and destinations to utilize these lanes, and (iii) configuration of truck platoons within these lanes (e.g., lateral displacements and vehicle separations). The problem is formulated as an integrated bi-level optimization model. The upper level makes decisions on converting existing highway lanes into dedicated platoon lanes, as well as setting user fees. The lower-level decisions are made by independent shippers regarding the choice of routes and use of platoon lanes vs. regular lanes; and they collectively determine truck traffic in all lanes. Link-cost functions for platoon lanes are obtained by simultaneously optimizing, through dynamic programming, pavement-rehabilitation activities and platoon configuration in the pavement's life cycle. A numerical case study is used to demonstrate the applicability and performance of the proposed model framework over the Illinois freeway system. It is shown that the freight traffic is effectively channelized on a few corridors of platoon lanes and, by setting proper user fees to cover pavement-rehabilitation costs, systemwide improvements for both freight shippers and highway agencies can be achieved.
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Bellagamba, E., A. Takacs, G. Mirsky, L. Andersson, P. Skoldstrom, and D. Ward. Configuration of Proactive Operations, Administration, and Maintenance (OAM) Functions for MPLS-Based Transport Networks Using RSVP-TE. RFC Editor, March 2015. http://dx.doi.org/10.17487/rfc7487.
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Bellagamba, E., G. Mirsky, L. Andersson, P. Skoldstrom, D. Ward, and J. Drake. Configuration of Proactive Operations, Administration, and Maintenance (OAM) Functions for MPLS-Based Transport Networks Using Label Switched Path (LSP) Ping. RFC Editor, February 2016. http://dx.doi.org/10.17487/rfc7759.
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