Thematische Bibliographien / Broker statistics

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Auswahl der wissenschaftlichen Literatur zum Thema „Broker statistics“

Autor: Grafiati

Veröffentlicht am 29. Juni 2021

Zuletzt aktualisiert am 15. Februar 2022

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Zeitschriftenartikel zum Thema "Broker statistics"

Grieβ, H. A., und M. Zinnert. „The insurance broker, 2nd ed.“ Insurance: Mathematics and Economics 13, Nr. 2 (November 1993): 170. http://dx.doi.org/10.1016/0167-6687(93)90941-h.

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Righter, Rhonda. „A brokered market with heterogeneous suppliers and consumers“. Journal of Applied Probability 36, Nr. 2 (Juni 1999): 512–22. http://dx.doi.org/10.1239/jap/1032374468.

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We consider a brokered market with heterogeneous suppliers and consumers of identical items or services. Each supplier determines a minimum acceptable price for the items it supplies, based on its costs and target rate of return. The broker begins with a fixed set of items from the suppliers. Customers arrive periodically to the market and offer a bid for an item. If a customer wants more than one item, a set of bids is made. If the broker accepts a bid it must be assigned an item with minimum accceptable price less than or equal to the bid, and the price paid is the bid price. The broker has the option of rejecting a bid. The broker makes acceptance and assignment decisions to maximize the total expected discounted revenue. We show the optimal policy has a simple threshold structure where thresholds can be easily determined by finding the individually optimal policies subject to priorities.

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Diesinger, Peter, Holger Kraft und Frank Seifried. „Asset allocation and liquidity breakdowns: what if your broker does not answer the phone?“ Finance and Stochastics 14, Nr. 3 (13.02.2009): 343–74. http://dx.doi.org/10.1007/s00780-008-0085-5.

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Almelia, Mark P. „The BSCA Graduates’ Level Of Satisfaction“. Proceedings Journal of Interdisciplinary Research 2 (10.10.2015): 126–33. http://dx.doi.org/10.21016/irrc.2015.au10ef84o.

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The research study aimed to trace the BSCA graduates of JBLFMU-Molo and know their level of satisfaction. The descriptive survey research design was employed in the study. The participants were the 64 conveniently selected BSCA graduates in the years 2009, 2010, 2011, 2012 and 2013. The data used were responses from the graduates with the use of the alumni tracer questionnaire. Descriptive statistics used were mean, frequency count and content analysis. Inferential statistics included a t-test for independent samples and One-Way ANOVA set at .05 alpha. Results revealed that the graduates had a “high” employment rate. The level of satisfaction of the graduates was also found to be “moderate”. When classified according to employment status, broker licensure status and year graduated, there was no significant difference existed among their level of satisfaction.

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Tjandra, D., S. Wong, W. Shen, B. Pulliam, E. Yu und L. Esserman. „An XML message broker framework for exchange and integration of microarray data“. Bioinformatics 19, Nr. 14 (22.09.2003): 1844–45. http://dx.doi.org/10.1093/bioinformatics/btg246.

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Manouselis, Nikos, und Demetrios Sampson. „Multi-criteria decision making for broker agents in elearning environments“. Operational Research 2, Nr. 3 (September 2002): 347–61. http://dx.doi.org/10.1007/bf02936390.

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Rubin, Brian, und Andrew M. McCormick. „2014 FINRA analysis: a blockbuster year for fines“. Journal of Investment Compliance 16, Nr. 2 (06.07.2015): 4–12. http://dx.doi.org/10.1108/joic-04-2015-0026.

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Purpose – To analyze the cases and sanctions FINRA reported in 2014 and prior years to evaluate what issues may be important for broker-dealers and their representatives in the future. Design/methodology/approach – This article discusses the overall statistics for cases reported by FINRA in 2014 and then focuses on the top enforcement issues for FINRA and some of the key cases. All of this analysis includes a comparison to enforcement statistics from prior years to help identify potential trends. Findings – This article concludes that 2014 was a blockbuster year for FINRA as the fines imposed by the regulator increased by 125 per cent. This article also finds that while FINRA is still focusing on many of the same issues as before, including advertising and trade reporting, other issues, such as anti-money laundering, received a significant spike in attention in 2014. Originality/value – This article contains valuable information about recent FINRA enforcement activity and practical guidance from experienced securities lawyers.

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Govender, Patsy, und Sanjana Brijball Parumasur. „Using the competing values framework to assess managerial alignment towards the organization’s vision, focus and preference for structure“. Corporate Ownership and Control 8, Nr. 4 (2011): 499–507. http://dx.doi.org/10.22495/cocv8i4c5art3.

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This study determines the extent to which middle, senior and top managers fulfill their managerial roles (mentor, facilitator, monitor, coordinator, director, producer, broker, and innovator). It also evaluates their focus (internal versus external) and preference for structure (stability and control versus flexibility and change) as well as whether their orientations are aligned towards the same vision/goal. A sample of 202 managers (middle, senior, top) was drawn using a stratified random sampling technique. Data was collected using a questionnaire and analyzed using descriptive and inferential statistics. The results of the study emphasize the importance of aligning the organizational focus and preference for structure with the organizational vision/goal and ensuring that the managerial cadre is appropriately developed in the competencies needed to attain the vision/goal.

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Gebre, Engida, Kusse Haile und Agegnehu Workye. „Value Chain Analysis of Sesame the Case of Bench Maji Zone, Southwest Ethiopia“. Journal of Agriculture and Crops, Nr. 511 (25.11.2019): 226–36. http://dx.doi.org/10.32861//jac.511.226.236.

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This study was analyzed value chain analysis of sesame in Bench Maji Zone of Southwestern, Ethiopia. It was specifically aimed to address the research gaps by, identifying the major value chain actors and mapping the value chain, and identifying major factors affecting market outlet choices of sesame producers in Meinit Goldya and Guraferda Districts. For addressing these objectives the study used both primary and secondary data obtained from field survey and desk review. Multistage random sampling technique was used to draw 270 sesame producers. Descriptive statistics and econometric method of data analysis were used to analyze the data. The major value chain actors for sesame marketing in the districts were producers, wholesalers, rural collector, cooperatives, broker/commission agents, retailers, local consumers, ECX, exporters and non-governmental organizations. The multivariate probit model results indicated that Years of experiences, Coop membership, household size, Education level, Land under sesame, Quantity supply, participating in training and distance to nearest market significantly influenced sesame producer’s choice of market outlet. Depending on results of this study recommend that strengthening farmers sesame cooperative and enhancing the financial capacity of cooperative, improving accessibility of Transport services and developing infrastructure, improving farmers’ knowledge through adult education as well as their experience sharing with other sesame producing farmers, improving productivity through strengthening supportive institutions(extension service provider) motivating sesame producing farm household to participate different training. Therefore, those important socioeconomic and institutional factors which are mentioned above must take into account to improve the productivity of sesame in the study area.

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F. Salman, Nadia, Hanan K. Mahmood und Eman A. Hussain. „Statistical Calculations in Case of Brother-Sister Incest“. Arab Journal of Forensic Sciences & Forensic Medicine 1, Nr. 10 (31.12.2019): 1468–72. http://dx.doi.org/10.26735/16586794.2019.038.

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Dissertationen zum Thema "Broker statistics"

Kroon, Erik, und Tom Karlsson. „Replicating the retailers' trading imbalance anomaly : A quantitative study about excess return opportunities on Swedish Small Cap listed firms“. Thesis, Uppsala universitet, Företagsekonomiska institutionen, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-447199.

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Previous research conducted on the US markets has found that retailers' trading imbalances can contribute to excess return opportunities, especially on Small Cap stocks. Therefore, we argue that this can be seen as an anomaly. However, anomalies that are found historically may not tell the whole truth. This is because these anomalies have been established on respective studies' specific markets and time periods. Researchers that have investigated the issue argue that it is essential to further challenge anomalies by replicating them in other settings to see if the evidence still holds. Hence, the purpose of this study is to examine if the retailers' trading imbalance anomaly can be replicated on Swedish Small Cap listed firms. We have examined this by using cross-sectional regressions in the spirit of Fama and MacBeth. This thesis concludes that the retailers’ trading imbalances cannot be replicated when applied to the chosen setting. We argue that the reasons for this are that retailers’ trading imbalances are not persistent, are not compensated when providing liquidity into the markets, and that it does not contain useful information about future stock returns. In addition, we also argue that inherent differences in the US markets compared to the Swedish Small Cap listed firms are affecting our possibility to successfully replicate the anomaly.

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Hilario, Reginaldo Francisco. „Statistical modelling of data from performance of broiler chickens“. Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/11/11134/tde-18012019-165449/.

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Experiments with broiler chickens are common today, because due to the great market demand for chicken meat, the need to improve the factors related to the production of broiler chicken has arisen. Many studies have been done to improve handling techniques. In these studies statistical analysis methods and techniques are employed. In studies with comparisons between treatments, it is not uncommon to observe a lack of significant effect even when there is evidence to indicate the significance of the effects. In order to avoid such eventualities it is fundamental to carry out a good planning before conducting the experiment. In this context, a study of the power of the F test was made emphasizing the relationships between test power, sample size, mean difference to be detected and variance for chicken weights data. In the analysis of data from experiments with broilers with mixed sexes and that the experimental unit is the box, generally the models used do not take into account the variability between the sexes of the birds, this affects the precision of the inference on the population of interest . We propose a model for the total weight per box that takes into account the sex information of the broiler chickens.
Experimentos com frangos de corte são comuns atualmente, pois devido à grande demanda de mercado da carne de frango surgiu a necessidade de melhorar os fatores ligados à produção do frango de corte. Muitos estudos têm sido feitos para aprimorar as técnicas de manejo. Nesses estudos os métodos e técnicas estatísticas de análise são empregados. Em estudos com comparações entre tratamentos, não é incomum observar falta de efeito significativo mesmo quando existem evidências que apontam a significância dos efeitos. Para evitar tais eventualidades é fundamental realizar um bom planejamento antes da condução do experimento. Nesse contexto, foi feito um estudo do poder do teste F enfatizando as relações entre o poder do teste, tamanho da amostra, diferença média a ser detectada e variância para dados de pesos de frangos. Na análise de dados provenientes de experimentos com frangos de corte com ambos os sexos e que a unidade experimental é o boxe, geralmente os modelos utilizados não levam em conta a variabilidade entre os sexos das aves, isso afeta a precisão da inferência sobre a população de interesse. Foi proposto um modelo para o peso total por boxe que leva em conta a informação do sexo dos frangos.

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Bartnick, Jörg Gerald [Verfasser], Hartmut [Akademischer Betreuer] Löwen und Alexei [Akademischer Betreuer] Ivlev. „Statistical mechanics where Newton's third law is broken / Jörg Gerald Bartnick. Gutachter: Hartmut Löwen ; Alexei Ivlev“. Düsseldorf : Universitäts- und Landesbibliothek der Heinrich-Heine-Universität Düsseldorf, 2016. http://d-nb.info/1081214481/34.

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Briscoe, Sandra Sisson. „Overall Life Satisfaction of Ileostomates: Conventional Brooke Ileostomy Versus Modified Kock Pouch“. DigitalCommons@USU, 1988. https://digitalcommons.usu.edu/etd/6977.

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The purpose of this thesis is to analyze various aspects of quality of life and to determine if there is a difference in quality of life offered by a conventional ileostomy versus a continent ileostomy. An instrument was developed to measure several factors thought to influence quality of life as well as several structural/demographic variables. This instrument was designed for persons with a conventional ileostomy and was modified for persons who had undergone conversion surgery from conventional to continent ileostomy. Analysis of variance was performed to determine differences in quality of life for persons with a conventional, conversion, or original continent ileostomy. In addition to an overall quality of life measure, measures for specific areas: self esteem, family relationships, marriage relationships and a composite measure, were tested. No difference was detected for the three types of ileostomy for these variables. Analysis of variance was also performed on variables measuring specific aspects of life such as social activities and travel. This identified several differences in the ileostomy types which the analysis of the more general variables failed to detect. Those who had conversion surgery from conventional to continent ileostomies answered each question twice, comparing life with no ileostomy to life with a conventional, then comparing life with a conventional ileostomy to life with a continent. Three analyses were performed on the resulting data: sign test, chi-square test, and Fisher's exact test. The use of these three tests showed differences in results concerning quality of life and differences in the statistical power of the tests. Both aspects are discussed. Significant improvement in quality of life for almost every aspect tested was seen for this group. Finally, principal component analysis was applied to the set of variables measuring specific aspects of quality of life and several new variables developed from the resulting factors. Analysis of variance was performed on these, as well as the original quality of life measures to determine which of the structural/demographic variables had an effect on quality of life.

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Hernandez, Erika Lyn. „Parameter Estimation in Linear-Linear Segmented Regression“. Diss., CLICK HERE for online access, 2010. http://contentdm.lib.byu.edu/ETD/image/etd3551.pdf.

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Salgado, Douglas D'Alessandro. „Modelo estatistico para predição de bem-estar de reprodutoras de frango de corte baseado em dados de ambiente e analise do comportamento“. [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/257162.

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Orientador: Irenilza de Alencar Naas
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agricola
Made available in DSpace on 2018-08-06T17:11:09Z (GMT). No. of bitstreams: 1 Salgado_DouglasD'Alessandro_M.pdf: 1159784 bytes, checksum: 04b0448382e6168d211ac0d4f2949f23 (MD5) Previous issue date: 2006
Resumo: O estudo de reprodutoras de frangos de corte é de grande importância para o país, uma vez que o frango de corte é o terceiro maior item agropecuário em exportação, e o Brasil, o segundo maior exportador do mundo desta carne. O estudo de comportamento de matrizes é de interesse científico, por buscar padrões que possam determinar saúde e bem-estar nessas aves. O galpão de produção deve fornecer um ambiente interno que venha de encontro com as necessidades do conforto térmico das aves. Este trabalho teve como objetivo a implementação de ferramentas e metodologia de análise estatística, que sirva de base para a criação de um sistema de monitoramento eletrônico de comportamento. O trabalho foi desenvolvido com dados coletados em ambiente controlado, utilizando a linhagem Hybro - PG, submetidas a diferentes níveis de temperatura, energia de ração e idade. Os dados foram tabulados utilizando os softwares Minitab@ e SAS@. Foram procedidas as análises descritiva e exploratória e, posteriormente, a modelagem - utilizando as Equações de Estimação Generalizadas (EEG). A pesquisa permitiu o desenvolvimento de modelos estatísticos de simulação e predição de comportamento de matrizes pesadas, que possibilitam a criação de um sistema inteligente para acionamento de sistemas de controle de ambiente em galpões de produção, inclusive com indicativo de bem-estar
Abstract: The study of female broiler breeders is of great importance for the country as broiler production is the third largest export item, and Brazil is the world second largest producer. The study of female breeder behavior is of scientific interest as it searches of specific pattern that may determine health and welfare in those birds. Production housing needs to provide inside environmental conditions that reaches bird's thermal comfort. This research has as objective the implementation of statistical and methodology analysis tools that may contribute to develop a system of electronic behavior monitoring. The experiment was developed with data collected under controlled environmental conditions, using birds from one genetic, and submitted to three distinct levels of ambient temperature, feed energy and age. Data were organized and processes using the software Minitab@ and SAS@. The descriptive, and exploratory analysis were applied, and afterwards the modeling - using the Generalized Estimate Equation. This research allowed the development of simulation statistical models for predicting female broiler breeders behavior, that may permit the building of an expert system for controlling production housing environment, as well as an indicative of welfare
Mestrado
Construções Rurais e Ambiencia
Mestre em Engenharia Agrícola

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„Broken Ergodicity and $1/f$ Noise from Finite, Local Entropy Baths“. Doctoral diss., 2018. http://hdl.handle.net/2286/R.I.51650.

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abstract: Fluctuations with a power spectral density depending on frequency as $1/f^\alpha$ ($0<\alpha<2$) are found in a wide class of systems. The number of systems exhibiting $1/f$ noise means it has far-reaching practical implications; it also suggests a possibly universal explanation, or at least a set of shared properties. Given this diversity, there are numerous models of $1/f$ noise. In this dissertation, I summarize my research into models based on linking the characteristic times of fluctuations of a quantity to its multiplicity of states. With this condition satisfied, I show that a quantity will undergo $1/f$ fluctuations and exhibit associated properties, such as slow dynamics, divergence of time scales, and ergodicity breaking. I propose that multiplicity-dependent characteristic times come about when a system shares a constant, maximized amount of entropy with a finite bath. This may be the case when systems are imperfectly coupled to their thermal environment and the exchange of conserved quantities is mediated through their local environment. To demonstrate the effects of multiplicity-dependent characteristic times, I present numerical simulations of two models. The first consists of non-interacting spins in $0$-field coupled to an explicit finite bath. This model has the advantage of being degenerate, so that its multiplicity alone determines the dynamics. Fluctuations of the alignment of this model will be compared to voltage fluctuations across a mesoscopic metal-insulator-metal junction. The second model consists of classical, interacting Heisenberg spins with a dynamic constraint that slows fluctuations according to the multiplicity of the system's alignment. Fluctuations in one component of the alignment will be compared to the flux noise in superconducting quantum interference devices (SQUIDs). Finally, I will compare both of these models to each other and some of the most popular models of $1/f$ noise, including those based on a superposition of exponential relaxation processes and those based on power law renewal processes.
Dissertation/Thesis
Doctoral Dissertation Physics 2018

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Bücher zum Thema "Broker statistics"

The broken dice, and other mathematical tales of chance. Chicago: University of Chicago Press, 1993.

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Johnson, Knowlton W. Local agency personnel as brokers of criminal justice research: A SAC experiment. Louisville, Ky: The Center, 1987.

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Levchenko, Boris. Criteria for testing hypotheses about uniformity. Application manual. ru: INFRA-M Academic Publishing LLC., 2020. http://dx.doi.org/10.12737/986695.

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The guide discusses the use of statistical criteria focused on the testing of hypotheses about uniformity of laws, which belong to the analyzed sample, of the homogeneous medium (about equality of the mathematical expectations), about the homogeneity of variance (equality of variances of compared samples). The disadvantages and advantages of various criteria are indicated, and the application of criteria in conditions of violation of standard assumptions is considered. Tables containing percentage points and statistical distribution models necessary for the correct application of the criteria are provided. This publication describes a broader set of criteria. Constructed models of marginal distributions of statistics for some sample criteria of law uniformity are proposed. Following the recommendations will ensure the correctness and validity of statistical conclusions when analyzing data. It is intended for specialists who are more or less faced with the issues of statistical data analysis, processing the results of experiments, and using statistical methods to analyze various aspects and trends of the surrounding reality. It will be useful for engineers, researchers, specialists in various fields (doctors, biologists, sociologists, economists, etc.), University teachers, graduate students and students.

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Forster, Dieter. Hydrodynamic fluctuations, broken symmetry, and correlation functions. Redwood City, Calif: Addison-Wesley, Advanced Book Program, 1990.

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Liebman, James S. A broken system: Error rates in capital cases, 1973-1995. [Washington, D.C: The Justice Project], 2000.

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Liebman, James S. A broken system: Error rates in capital cases, 1973-1995 : appendices. [Washington, D.C: The Justice Project], 2000.

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Burge, Suzanne. Broken down by grade and sex: The career development of government librarians. Kingswinford: Library Association Government Libraries Group, 1995.

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Illinois State Board of Education (1973- ), Hrsg. Securities & commodities. Springfield, Ill.]: Illinois Dept. of Employment Security, 2001.

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Illinois. Dept. of Employment Security. Servicios de los seguros. Springfield, Ill.]: Illinois Dept. of Employment Security, 2001.

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Gelman, Andrew, und Deborah Nolan. Statistical thinking in a data science course. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198785699.003.0021.

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In this chapter, we describe the philosophy, goals, syllabus, and activities for a course that we have developed in data science course. In this course we integrate topics from computing, statistics, and working with data. This integrated approach addresses many core aspects in statistics training, including statistical thinking, the role of context in addressing a statistical problem, statistical communication through code, and the balance between programming and mathematical approaches to problems. When designing this course, we asked ourselves what our students ought to be able to do computationally. While we do provide a list of technical material, we also considered the broader goals of the course. Examples include plotting on Google Earth and developing a spam filter for unwanted email.

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Buchteile zum Thema "Broker statistics"

Sagnotti, Augusto. „Open-String Models with Broken Supersymmetry“. In Statistical Field Theories, 171–84. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0514-2_16.

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Brenig, Wilhelm. „Broken Symmetry and Low-Frequency Modes“. In Statistical Theory of Heat, 264–68. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-74685-7_51.

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Sánchez, Rafael. „Transport Out of Locally Broken Detailed Balance“. In Springer Proceedings in Mathematics & Statistics, 51–64. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-76599-0_3.

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Stephen, Mundwiller. „If It Ain’t Broke … Don’t Fix It“. In Statistical Process Control, 95. Boca Raton : CRC Press, Taylor & Francis Group, 2017.: CRC Press, 2017. http://dx.doi.org/10.1201/9781351248518-8.

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Siegmund, David O., und Heping Zhang. „Confidence regions in broken line regression“. In Institute of Mathematical Statistics Lecture Notes - Monograph Series, 292–316. Hayward, CA: Institute of Mathematical Statistics, 1994. http://dx.doi.org/10.1214/lnms/1215463132.

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Barnes, S. E. „Spinon-Holon Statistics, and Broken Statistical Symmetry for the t-J and Hubbard Models in 2D“. In High-Temperature Superconductivity, 95–105. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-3338-2_12.

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Castel-Branco, Marta, Marília Antunes, Patrícia Inácio und Miguel Cardo. „Risk Assessment on Campylobacter in Broiler Meat at Slaughter Level in Portugal“. In Studies in Theoretical and Applied Statistics, 121–29. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-34904-1_12.

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Berk, Richard A. „Broader Implications and a Bit of Craft Lore“. In Statistical Learning from a Regression Perspective, 325–32. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-44048-4_9.

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Busby, Carolyn R., und Michael W. Carter. „Benefits of a Broader View: Capturing the Hospital-Wide Impact of Surge Policies with Discrete-Event Simulation“. In Springer Proceedings in Mathematics & Statistics, 41–51. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-39694-7_4.

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Fibbi, Rosita, Arnfinn H. Midtbøen und Patrick Simon. „Combatting Discrimination“. In IMISCOE Research Series, 79–91. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-67281-2_7.

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AbstractThere is a large variety of policies and actions contributing to tackling discrimination against immigrants and ethno-racial minorities, and countries vary greatly in their strategies to tackle ethnic and racial discrimination. This chapter distinguishes between three main types of measures – antidiscrimination legislation, affirmative action and other equal opportunity policies, and tools for promoting diversity – and describe their origins as well as whether they are implemented in different contexts. The chapter also reviews studies that have aimed at assessing the effectiveness of measures to combat discrimination and concludes by pointing out the necessity of statistics broken down by ethnicity or race to uncover unfair treatment and disadvantage faced by minorities.

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Konferenzberichte zum Thema "Broker statistics"

Christozov, Dimitar, Stoyan Denchev, Stefka Toleva-Stoimenova und Katia Rasheva-Yordanova. „Training Information Brokers: A Curriculum Model“. In InSITE 2008: Informing Science + IT Education Conference. Informing Science Institute, 2008. http://dx.doi.org/10.28945/3192.

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The paper shares experience accumulated in launching and implementing a curriculum model for bachelor level training of professionals - Information Brokers - to serve as mediators and consultants to different kind of clients. This requires that professional possess knowledge and skills in several areas as information technology, mathematics and statistics, business and economics, and consulting skills as well. The way, how to build the corpus of knowledge and skills needed for the profession of Information Brokers, how it is structured and ordered is presented, commented and assessed.

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Fuxjager, Paul, und Fabio Ricciato. „Collecting broken frames: Error statistics in IEEE 802.11b/g links“. In 2008 6th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks and Workshops (WiOPT). IEEE, 2008. http://dx.doi.org/10.1109/wiopt.2008.4586030.

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Fuxjager, Paul, und Fabio Ricciato. „Collecting Broken Frames: Error Statistics in IEEE 802.11b/g Links“. In 6th International ICST Symposium on Modeling and Optimization. IEEE, 2008. http://dx.doi.org/10.4108/icst.wiopt2008.3252.

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Herzog, Patricia Snell, Rahul Yadav und Davide Bolchini. „Question-Generating Datasets: Facilitating Data Transformation of Official Statistics for Broad Citizenry Decision-Making“. In CARMA 2020 - 3rd International Conference on Advanced Research Methods and Analytics. Valencia: Universitat Politècnica de València, 2020. http://dx.doi.org/10.4995/carma2020.2020.11602.

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Citizenry decision-making relies on data for informed actions, and official statistics provide many of the relevant data needed for these decisions. However, the wide, distributed, and diverse datasets available from official statistics remain hard to access, scrutinise and manipulate, especially for non-experts. As a result, the complexities involved in official statistical databases create barriers to broader access to these data, often rendering the data non-actionable or irrelevant for the speed at which decisions are made in social and public life. To address this problem, this paper proposes an approach to automatically generating basic, factual questions from an existing dataset of official statistics. The question generating process, now specifically instantiated for geospatial data, starts from a raw dataset and gradually builds toward formulating and presenting users with examples of questions that the dataset can answer, and for which geographic units. This approach exemplifies a novel paradigm of question-first data rendering, where questions, rather than data tables, are used as a human-centred and relevant access point to explore, manipulate, navigate and cross-link data to support decision making. This approach can automate time-consuming aspects of data transformation and facilitate broader access to data.

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Kulas, John, Marlee Wanamaker, Diuky Padron-Marrero und Hui Xu. „Sample Size Sensitivity in Descriptive Baseball Statistics“. In CARMA 2020 - 3rd International Conference on Advanced Research Methods and Analytics. Valencia: Universitat Politècnica de València, 2020. http://dx.doi.org/10.4995/carma2020.2020.11643.

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This paper presents one element of a larger project that probes for systematicand predictable patterns of variability/volatility in baseball's descriptivestatistics. The larger project standardizes many baseball indices along anevent metric and provides relative estimates of each index’s point of inflectiontoward an empirical asymptote. Specifically these estimates reflect deviationsin sensitivity to “sample size” (e.g., which descriptive statistics are more orless robust across events). The end purpose of this broader investigation is aqualifier to be associated with such statistics: sample size sensitivity (TripleS). Not because it's needed, but because, colloquially, discussions of baseballstatistics are commonly qualified by the cautionary statement, "well, it's asmall sample size". The current presentation highlights the process and resultsof estimating the logarithmic event function of one statistic, batting average,and we will provide real-time projections of accuracy (our estimated functionversus in-coming baseball data that occurs during the CARMA conference).Results have implications for the integration of BigData applications intodigestable summary statistics that appeal to a broad-reaching audience withpractical implications and meaning.

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Grande-Barreto, Jonas, Carlos Morales-Perez, Jose Rangel-Magdaleno und Hayde Peregrina-Barreto. „Half-broken bar detection using MCSA and statistical analysis“. In 2017 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC). IEEE, 2017. http://dx.doi.org/10.1109/ropec.2017.8261598.

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SHRINER, J. F., G. E. MITCHELL und B. A. BROWN. „STATISTICAL ASPECTS OF THE SHELL-MODEL: BROKEN ISOSPIN SYMMETRY“. In Proceedings of the Eleventh International Symposium. WORLD SCIENTIFIC, 2003. http://dx.doi.org/10.1142/9789812795151_0050.

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Winterstein, Steven R., und Cameron A. MacKenzie. „Extremes of Nonlinear Vibration: Models Based on Moments, L-Moments, and Maximum Entropy“. In ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2011. http://dx.doi.org/10.1115/omae2011-49867.

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Nonlinear effects beset virtually all aspects of offshore structural loading and response. These nonlinearities cause non-Gaussian statistical effects, which are often most consequential in the extreme events—e.g., 100- to 10,000-year conditions—that govern structural reliability. Thus there is engineering interest in forming accurate non-Gaussian models of time-varying loads and responses, and calibrating them from the limited data at hand. We compare here a variety of non-Gaussian models. We first survey moment-based models; in particular, the 4-moment “Hermite” model, a cubic transformation often used in wind and wave applications. We then derive an “L-Hermite” model, an alternative cubic transformation calibrated by the response “L-moments” rather than its ordinary statistical moments. These L-moments have recently found increasing use, in part because they show less sensitivity to distribution tails than ordinary moments. We find here, however, that these L-moments may not convey sufficient information to accurately estimate extreme response statistics. Finally, we show that 4-moment maximum entropy models, also applied in the literature, may be inappropriate to model broader-than-Gaussian cases (e.g., responses to wind and wave loads).

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Zhang, Zhipeng, Kang Zhou und Xiang Liu. „Probabilistic Risk Analysis of Broken Rail-Caused Train Derailments“. In 2020 Joint Rail Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/jrc2020-8100.

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Abstract Broken-rail prevention and risk management have been being a major activity for a long time for the railroad industry. The major objective of this research is to evaluate and analyze the broken rail-caused derailment risk using Artificial Intelligence (AI) approaches. The risk model is primarily built upon 1) broken rail probability; 2) probability of broken-rail derailment given a broken rail; and 3) derailment severity, measured by the number of cars derailed. The train derailment risk accounts for derailment probability and derailment consequences simultaneously. Due to the low frequency of broken-rail derailments, it is desirable to estimate the probability of broken rail-caused derailments through the broken rail occurrence. The estimation of the probability of broken rail-caused derailment includes the conditional probability of derailment given broken rail occurrence and the probability of broken rail occurrence. More specially, the probability of broken-rail derailment given a broken rail can be estimated by the statistical relationship between broken-rail derailment and broken rail, given specific variables (e.g., track curvature, signal condition, and annual traffic). The probability of broken rails can be estimated using machine learning techniques based on railroad big data, including maintenance, track layout, traffic and historical inspection records. In terms of derailment consequence, it is defined as the number of cars (both loaded and empty) derailed per derailment that would be estimated based on potentially affecting factors, such as train length, train speed, and train tonnage. The quantitative estimation and analysis of broken rail-caused derailments are based upon the historical records from one Class I railroad company from 2012 to 2016, covering over 20,000 track miles on mainlines. The developed integrated risk model is able to contribute to the prediction of location-centric broken rail-caused derailment risk. Ultimately, the identification of high-risk locations can ultimately aid the railroads to mitigate broken rail risk in a cost-efficient manner and improve railroad safety.

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Ismail, Fathy, und Ali Elbik. „Tool Breakage Detection Using Statistical Moments“. In ASME 1999 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/detc99/vib-8327.

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Abstract On-line monitoring and detection of tool breakage is essential for highly automated machining centers. This paper presents a tool breakage method that utilizes statistical moments of the Beta distribution. The method has been applied successfully by the first author for the detection of tooth cracks in gears. It is extended here to the detection of chipped or broken teeth (inserts) in milling cutters. The method is assessed using cutting tests of steel workpieces employing Taguchi’s approach for statistical design of experiments. Results of these experiments show the Kurtosis of the Beta distribution to be a reliable tool breakage indicator that is insensitive to operating conditions and for typical amounts of tool radial runouts.

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Berichte der Organisationen zum Thema "Broker statistics"

Pizarro, Rodrigo, Raúl Delgado, Huáscar Eguino und Aloisio Lopes Pereira. Climate Change Public Budget Tagging: Connections across Financial and Environmental Classification Systems. Inter-American Development Bank, Januar 2021. http://dx.doi.org/10.18235/0003021.

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Identifying and evaluating climate expenditures in the public sector, known as budget tagging, has generated increasing attention from multiple stakeholders, not only to assess the governments climate change policy, but also to monitor fiscal risks associated with increasing and unpredictable climate change impacts. This paper explores the issues raised by climate change budget tagging in the context of a broader discussion on the connections with fiscal and environmental statistical classification systems. It argues that, for climate change budget tagging efforts to be successful, the definitions and classifications of climate change expenditures must be consistent with statistical standards currently in use, such as the Government Finance Statistics Framework and the System of National Accounts.

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Downes, Jane, Hrsg. Chalcolithic and Bronze Age Scotland: ScARF Panel Report. Society for Antiquaries of Scotland, September 2012. http://dx.doi.org/10.9750/scarf.09.2012.184.

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The main recommendations of the panel report can be summarised under five key headings:  Building the Scottish Bronze Age: Narratives should be developed to account for the regional and chronological trends and diversity within Scotland at this time. A chronology Bronze Age Scotland: ScARF Panel Report iv based upon Scottish as well as external evidence, combining absolute dating (and the statistical modelling thereof) with re-examined typologies based on a variety of sources – material cultural, funerary, settlement, and environmental evidence – is required to construct a robust and up to date framework for advancing research.  Bronze Age people: How society was structured and demographic questions need to be imaginatively addressed including the degree of mobility (both short and long-distance communication), hierarchy, and the nature of the ‘family’ and the ‘individual’. A range of data and methodologies need to be employed in answering these questions, including harnessing experimental archaeology systematically to inform archaeologists of the practicalities of daily life, work and craft practices.  Environmental evidence and climate impact: The opportunity to study the effects of climatic and environmental change on past society is an important feature of this period, as both palaeoenvironmental and archaeological data can be of suitable chronological and spatial resolution to be compared. Palaeoenvironmental work should be more effectively integrated within Bronze Age research, and inter-disciplinary approaches promoted at all stages of research and project design. This should be a two-way process, with environmental science contributing to interpretation of prehistoric societies, and in turn, the value of archaeological data to broader palaeoenvironmental debates emphasised. Through effective collaboration questions such as the nature of settlement and land-use and how people coped with environmental and climate change can be addressed.  Artefacts in Context: The Scottish Chalcolithic and Bronze Age provide good evidence for resource exploitation and the use, manufacture and development of technology, with particularly rich evidence for manufacture. Research into these topics requires the application of innovative approaches in combination. This could include biographical approaches to artefacts or places, ethnographic perspectives, and scientific analysis of artefact composition. In order to achieve this there is a need for data collation, robust and sustainable databases and a review of the categories of data.  Wider Worlds: Research into the Scottish Bronze Age has a considerable amount to offer other European pasts, with a rich archaeological data set that includes intact settlement deposits, burials and metalwork of every stage of development that has been the subject of a long history of study. Research should operate over different scales of analysis, tracing connections and developments from the local and regional, to the international context. In this way, Scottish Bronze Age studies can contribute to broader questions relating both to the Bronze Age and to human society in general.

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Wright, Kirsten. Collecting Plant Phenology Data In Imperiled Oregon White Oak Ecosystems: Analysis and Recommendations for Metro. Portland State University, März 2020. http://dx.doi.org/10.15760/mem.64.

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Highly imperiled Oregon white oak ecosystems are a regional conservation priority of numerous organizations, including Oregon Metro, a regional government serving over one million people in the Portland area. Previously dominant systems in the Pacific Northwest, upland prairie and oak woodlands are now experiencing significant threat, with only 2% remaining in the Willamette Valley in small fragments (Hulse et al. 2002). These fragments are of high conservation value because of the rich biodiversity they support, including rare and endemic species, such as Delphinium leucophaeum (Oregon Department of Agriculture, 2020). Since 2010, Metro scientists and volunteers have collected phenology data on approximately 140 species of forbs and graminoids in regional oak prairie and woodlands. Phenology is the study of life-stage events in plants and animals, such as budbreak and senescence in flowering plants, and widely acknowledged as a sensitive indicator of environmental change (Parmesan 2007). Indeed, shifts in plant phenology have been observed over the last few decades as a result of climate change (Parmesan 2006). In oak systems, these changes have profound implications for plant community composition and diversity, as well as trophic interactions and general ecosystem function (Willis 2008). While the original intent of Metro’s phenology data-collection was to track long-term phenology trends, limitations in data collection methods have made such analysis difficult. Rather, these data are currently used to inform seasonal management decisions on Metro properties, such as when to collect seed for propagation and when to spray herbicide to control invasive species. Metro is now interested in fine-tuning their data-collection methods to better capture long-term phenology trends to guide future conservation strategies. Addressing the regional and global conservation issues of our time will require unprecedented collaboration. Phenology data collected on Metro properties is not only an important asset for Metro’s conservation plan, but holds potential to support broader research on a larger scale. As a leader in urban conservation, Metro is poised to make a meaningful scientific contribution by sharing phenology data with regional and national organizations. Data-sharing will benefit the common goal of conservation and create avenues for collaboration with other scientists and conservation practitioners (Rosemartin 2013). In order to support Metro’s ongoing conservation efforts in Oregon white oak systems, I have implemented a three-part master’s project. Part one of the project examines Metro’s previously collected phenology data, providing descriptive statistics and assessing the strengths and weaknesses of the methods by which the data were collected. Part two makes recommendations for improving future phenology data-collection methods, and includes recommendations for datasharing with regional and national organizations. Part three is a collection of scientific vouchers documenting key plant species in varying phases of phenology for Metro’s teaching herbarium. The purpose of these vouchers is to provide a visual tool for Metro staff and volunteers who rely on plant identification to carry out aspects of their job in plant conservation. Each component of this project addresses specific aspects of Metro’s conservation program, from day-to-day management concerns to long-term scientific inquiry.

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