Zeitschriftenartikel: „Intersecting objects“

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Zhang, Rong Guo, Zhi Fang Wang, Xiao Jun Liu und Kun Liu. „Objects Collision Detection in Virtual Scene“. Advanced Materials Research 605-607 (Dezember 2012): 2391–94. http://dx.doi.org/10.4028/www.scientific.net/amr.605-607.2391.

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An algorithm of two stages collision detection is presented for moving objectives in virtual scene. Firstly, AABB bounding box was used to test the intersection of interesting objects in coarse detection stage. Then combining space projection with Z-buffer algorithm, the potential intersecting objects in previous step were tested in precision detection stage, thus we can obtain objects collision data information and complete object collision detection. Finally experimental results show that the algorithm is more efficiency than traditional bounding box detection, the improved technology can realize further accurate collision detection.

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Dobkin, David P., und Herbert Edelsbrunner. „Space searching for intersecting objects“. Journal of Algorithms 8, Nr. 3 (September 1987): 348–61. http://dx.doi.org/10.1016/0196-6774(87)90015-0.

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3

Chen, Min, Zhiling Ma, Li Chen, Junhong Chen und Yaohui Liu. „Guidance method of simulating weld trajectory between planes based on single-point laser“. Journal of Physics: Conference Series 2256, Nr. 1 (01.04.2022): 012038. http://dx.doi.org/10.1088/1742-6596/2256/1/012038.

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Abstract In the face of problems such as welding of small objects or too small welding space, an application method of welding small plane intersecting objects based on point laser was proposed. The demonstration points pointing to different planes were preset, and the laser displacement sensor was driven to measure the physical value by simulating the sharp workpiece of the welding gun. Multiple projections at different locations were made on a certain plane of the welding object, so as to ensure that the laser points were not collinear and obtain the laser point parameter set. The plane equation was solved respectively according to the planes pointed by different demonstration points, and a geometric model was built. The equation of the intersecting line between the planes in the welding object was calculated. The points on the line were obtained as the welding start points. The workpiece tip was controlled to move along the intersection direction by the mechanical arm, so as to achieve the weld effect.

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Gorbachev, Sergey, und Vladimir Syryamkin. „Adaptive Neuro-Fuzzy Recognition Technology Intersecting Objects“. Applied Mechanics and Materials 756 (April 2015): 683–88. http://dx.doi.org/10.4028/www.scientific.net/amm.756.683.

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The study discusses adaptive neuro-fuzzy methods of recognition of the multidimensional overlapping objects on the basis of the introduced concepts, generalized and modified operations of fuzzy set theory and neural networks. To improve recognition accuracy, proposed a combined approach including neural network analysis of generalized images based on Kohonen maps, and building systems fuzzy inference based on the identification of allocated clusters integral characteristics of the images. Using the derived system of diagnostic decision rules "If ... then" the comprehensive forecast map of oil South of Cheremshan field was built.

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Abraham, E. R. C., und P. K. Townsend. „Intersecting extended objects in supersymmetric field theories“. Nuclear Physics B 351, Nr. 1-2 (März 1991): 313–32. http://dx.doi.org/10.1016/0550-3213(91)90093-d.

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Schaden, M. „Irreducible many-body Casimir energies of intersecting objects“. EPL (Europhysics Letters) 94, Nr. 4 (01.05.2011): 41001. http://dx.doi.org/10.1209/0295-5075/94/41001.

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Sridharan, K., H. E. Stephanou, K. C. Craig und S. S. Keerthi. „Distance measures on intersecting objects and their applications“. Information Processing Letters 51, Nr. 4 (August 1994): 181–88. http://dx.doi.org/10.1016/0020-0190(94)00092-1.

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Wang, Li, Ruifeng Li, Jingwen Sun, Xingxing Liu, Lijun Zhao, Hock Soon Seah, Chee Kwang Quah und Budianto Tandianus. „Multi-View Fusion-Based 3D Object Detection for Robot Indoor Scene Perception“. Sensors 19, Nr. 19 (21.09.2019): 4092. http://dx.doi.org/10.3390/s19194092.

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To autonomously move and operate objects in cluttered indoor environments, a service robot requires the ability of 3D scene perception. Though 3D object detection can provide an object-level environmental description to fill this gap, a robot always encounters incomplete object observation, recurring detections of the same object, error in detection, or intersection between objects when conducting detection continuously in a cluttered room. To solve these problems, we propose a two-stage 3D object detection algorithm which is to fuse multiple views of 3D object point clouds in the first stage and to eliminate unreasonable and intersection detections in the second stage. For each view, the robot performs a 2D object semantic segmentation and obtains 3D object point clouds. Then, an unsupervised segmentation method called Locally Convex Connected Patches (LCCP) is utilized to segment the object accurately from the background. Subsequently, the Manhattan Frame estimation is implemented to calculate the main orientation of the object and subsequently, the 3D object bounding box can be obtained. To deal with the detected objects in multiple views, we construct an object database and propose an object fusion criterion to maintain it automatically. Thus, the same object observed in multi-view is fused together and a more accurate bounding box can be calculated. Finally, we propose an object filtering approach based on prior knowledge to remove incorrect and intersecting objects in the object dataset. Experiments are carried out on both SceneNN dataset and a real indoor environment to verify the stability and accuracy of 3D semantic segmentation and bounding box detection of the object with multi-view fusion.

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Liu, Bo, Xuechao Liu, Dajun Li, Yu Shi, Gabriela Fernandez und Yandong Wang. „A Vector Line Simplification Algorithm Based on the Douglas–Peucker Algorithm, Monotonic Chains and Dichotomy“. ISPRS International Journal of Geo-Information 9, Nr. 4 (17.04.2020): 251. http://dx.doi.org/10.3390/ijgi9040251.

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When using the traditional Douglas–Peucker (D–P) algorithm to simplify linear objects, it is easy to generate results containing self-intersecting errors, thus affecting the application of the D–P algorithm. To solve the problem of self-intersection, a new vector line simplification algorithm based on the D–P algorithm, monotonic chains and dichotomy, is proposed in this paper. First, the traditional D–P algorithm is used to simplify the original lines, and then the simplified lines are divided into several monotonic chains. Second, the dichotomy is used to search the intersection positions of monotonic chains effectively, and intersecting monotonic chains are processed, thus solving the self-intersection problems. Two groups of experimental data are selected based on large data sets. Results demonstrate that the proposed experimental method has advantages in algorithmic efficiency and accuracy when compared to the D–P algorithm and the Star-shaped algorithm.

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Wang, Ming Quan, Wei Zhao und Hui Yan Qu. „An Improved Collision Detection Algorithm Based on GPU“. Applied Mechanics and Materials 687-691 (November 2014): 3893–96. http://dx.doi.org/10.4028/www.scientific.net/amm.687-691.3893.

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In order to improve the speed of collision detection between objects in the large-scale and complex scene, this paper proposed an improved collision detection algorithm based on GPU, In this method, we first divided the virtual space into several grids to rule out the impossible intersecting objects rapidly using the GPU acceleration technology; secondly, we adopted parallel technology to build K - DOP bounding boxes for the objects in the same grids and then detected whether the K - DOP bounding boxes intervene or collide to conform the potential colliding primitive pairs; Finally we traveled the final triangle intersection tests on GPU. Compared to the traditional K-DOP compared bounding box collision detection, The algorithm can effectively improve the real-time collision detection.

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SQUIRES, JUDITH. „Intersecting Inequalities: Reflecting on the Subjects and Objects of Equality“. Political Quarterly 79, Nr. 1 (Januar 2008): 53–61. http://dx.doi.org/10.1111/j.1467-923x.2008.00902.x.

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WILSON, SAMUEL. „Strategies of Conquest and Defence: Encounters with the Object in Twentieth-Century Music“. Journal of the Royal Musical Association 145, Nr. 2 (November 2020): 457–84. http://dx.doi.org/10.1017/rma.2020.18.

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AbstractReacting to recent materialist developments in music studies and beyond, I argue for the value of dialectics in accounting for compositional orientations vis-à-vis their objects – be these objects sound-producing, non-human entities, such as musical instruments, or the object that is ‘sound itself ’. Engaging the compositional thought and practice of Busoni, Russolo, Varèse, Cage and Tudor by way of example, I highlight two intersecting tendencies: the first constitutes a presumed mastery over the object in question; the second is suggestive of an exploration of the object on its own terms. Interweaving aspects of post-Marxist and psychoanalytic theory, I argue that, ultimately, our orientation towards the object manifests a negotiation of the self in a changing material world.

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Tuncer, Sylvaine, und Pentti Haddington. „Object transfers: An embodied resource to progress joint activities and build relative agency“. Language in Society 49, Nr. 1 (23.09.2019): 61–87. http://dx.doi.org/10.1017/s004740451900071x.

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ABSTRACTThis article builds on ethnomethodological, conversation analytic research on object transfers: how participants hand over objects to one another. By analyzing video recordings of mundane (cars) and institutional interactions (laboratories), we focus on situations where an object is central to and talked about in the joint course of action. We focus on different organizations of object transfer and show that one embodied move is decisive, either a sequentially implicative ‘give’ or an arm extension designed as a stand-alone ‘take’. We examine the interrelationship between the organization of the object transfer and the broader course of action (e.g. request or offer sequence), which is either overlapping or intersecting. We demonstrate that by making the decisive move, either the participant initially holding the object or her recipient critically influences the progression and trajectory of the activity, and displays agency. (Ethnomethodology, Conversation Analysis, multimodal interactions, objects in interaction, object transfers, agency)*

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Smelik, Anneke, und Susan B. Kaiser. „Crisscrossing through critical fashion studies: Inclusive and interdisciplinary intersections“. Critical Studies in Fashion & Beauty 12, Nr. 2 (01.12.2021): 155–61. http://dx.doi.org/10.1386/csfb_00033_2.

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In this introduction to the 12.2 issue of Critical Studies in Fashion & Beauty, the editors preview and consider several crisscrossing themes across the articles and reviews: affect, the body and gender, as well as class, race, nationality and other subject positions. The articles and reviews also represent a range of places and times. Diversity and heterogeneity of themes and objects of enquiry are distinctive characteristics of critical fashion studies today. The crisscrossing of themes reflects an equal amount of crisscrossing of theories, methodologies and epistemologies in our highly interdisciplinary field. Crisscrossing can be described as intersecting paths that diverge in different directions at each crossroad or intersection. Imagine for example an irregular embroidery cross-stitch pattern: while emphasizing intersections, there may be differences in the lengths of the stitches and the ways in which they are arranged. The cross-stitches may be shaped in nonlinear formats, even more so when they are not so tidy and ‐ instead ‐ are random, abstract or ambiguous. The editors argue that the importance of ambiguity has long been a theme in critical fashion studies.

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Chen, Yutao, Guoqing Tian, Junyou Guo und Jie Huang. „Task Planning for Multiple-Satellite Space-Situational-Awareness Systems“. Aerospace 8, Nr. 3 (12.03.2021): 73. http://dx.doi.org/10.3390/aerospace8030073.

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Space situational awareness (SSA) plays an important role in maintaining space advantages. Task planning is one of the key technologies in SSA to allocate multiple tasks to multiple satellites, so that a satellite may be allocated to supervise multiple space objects, and a space object may be supervised by multiple satellites. This paper proposes a hierarchical and distributed task-planning framework for SSA systems with focus on fast and effective task planning customized for SSA. In the framework, a global task-planner layer performs satellite and object clustering, so that satellites are clustered into multiple unique clusters on the basis of their positions, while objects are clustered into multiple possibly intersecting clusters, hence allowing for a single object to be supervised by multiple satellites. In each satellite cluster, a local task planner performs distributed task planning using the contract-net protocol (CNP) on the basis of the position and velocity of satellites and objects. In addition, a customized discrete particle swarm optimization (DPSO) algorithm was developed to search for the optimal task-planning result in the CNP. Simulation results showed that the proposed framework can effectively achieve task planning among multiple satellites and space objects. The efficiency and scalability of the proposed framework are demonstrated through static and dynamic orbital simulations.

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Cheng, Jun Ting, und Xin Kuan Liu. „Research on Surface Reconstruction from Intersecting Curves“. Applied Mechanics and Materials 701-702 (Dezember 2014): 145–49. http://dx.doi.org/10.4028/www.scientific.net/amm.701-702.145.

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This paper comes up with an stereo matching method for handy-scanner based on cross light. The handy-scan system with two cameras and one cross laser beam can scan very detail accurately through cross laser. 3D information is gained by dealing with cross laser image. What we do aims at estimating the transformation of the measured objects under the world coordinate. In order to achieve this goal, firstly we use 8-points algorithm to compute fundamental matrix. Then, the points on the left and the right can be matched based on fundamental matrix. The 3D coordinates of the point on the cross laser can be obtained by triangulation and curve surface differential. The experiment proves that this algorithm solves the problem of calculating the matching points in disorder. And in some way, it increases efficiency of matching cross laser stripes.

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Webster, Richard J., Christopher Hassall, Chris M. Herdman, Jean-Guy J. Godin und Thomas N. Sherratt. „Disruptive camouflage impairs object recognition“. Biology Letters 9, Nr. 6 (23.12.2013): 20130501. http://dx.doi.org/10.1098/rsbl.2013.0501.

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Whether hiding from predators, or avoiding battlefield casualties, camouflage is widely employed to prevent detection. Disruptive coloration is a seemingly well-known camouflage mechanism proposed to function by breaking up an object's salient features (for example their characteristic outline), rendering objects more difficult to recognize. However, while a wide range of animals are thought to evade detection using disruptive patterns, there is no direct experimental evidence that disruptive coloration impairs recognition. Using humans searching for computer-generated moth targets, we demonstrate that the number of edge-intersecting patches on a target reduces the likelihood of it being detected, even at the expense of reduced background matching. Crucially, eye-tracking data show that targets with more edge-intersecting patches were looked at for longer periods prior to attack, and passed-over more frequently during search tasks. We therefore show directly that edge patches enhance survivorship by impairing recognition, confirming that disruptive coloration is a distinct camouflage strategy, not simply an artefact of background matching.

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Kulikov, V. A. „Algorithm of tracking of intersecting objects based on a sequence of depth images“. Optoelectronics, Instrumentation and Data Processing 52, Nr. 1 (Januar 2016): 37–42. http://dx.doi.org/10.3103/s8756699016010064.

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Martínez, Luis A., Ernesto Bribiesca und Adolfo Guzmán. „Chain coding representation of voxel-based objects with enclosing, edging and intersecting trees“. Pattern Analysis and Applications 20, Nr. 3 (11.03.2016): 825–44. http://dx.doi.org/10.1007/s10044-016-0540-4.

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Zhigulina, Daria I., Dilyara I. Mingazova, Denis S. Grigoriev, Vladimir Yu Klimov, Mariya V. Latysheva und Pavel Yu Kiselev. „A novel approach to resource potential estimation and field development of non-structural traps with limited data: a case study of Achimov formation in Western Siberia“. PROneft’. Proffessional’no o nefti 6, Nr. 3 (05.10.2021): 52–60. http://dx.doi.org/10.51890/2587-7399-2021-6-3-52-60.

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Background. The West Siberian basin which is one of the main oil and gas regions of Russia is characterized not only by classical structural traps but also by extremely complex geological objects of Achimov sequence. Thereby, it is quite difficult to evaluate perspectives of license areas within which we can discover those Achimov type of deposits, especially at regional stage exploration in terms of a complete absence of 3D seismic data and uneven coverage of area by 2D seismic surveys. Aim. This article is devoted to the methodology description for probabilistic assessment of the resource base of non-structural traps in the Achimov strata in areas with different 2D-seismic exploration degree. Materials and methods. The methodology based on the “density” method which in relation to the evaluated area uses statistics of estimated parameters and number of bodies in the field analogs. The general line of this paper is how to use this methodology for resource base evaluation in the zones of Achimov deposits intersection as the most promising from the point of further development. Results. As part of the project evaluation according to the proposed approach, the resource base was divided into components — resources of objects in areas of possible intersection and resources of single, non-intersecting objects. Conclusions. It provides an opportunity to spot and conduct a technical and economic assessment of previously uneconomic reservoirs.

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Zhigulina, Daria I., Dilyara I. Mingazova, Denis S. Grigoriev, Vladimir Yu Klimov, Mariya V. Latysheva und Pavel Yu Kiselev. „A novel approach to resource potential estimation and field development of non-structural traps with limited data: a case study of Achimov formation in Western Siberia“. PROneft’. Proffessional’no o nefti 6, Nr. 3 (05.10.2021): 52–60. http://dx.doi.org/10.51890/2587-7399-2021-6-3-52-60.

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Background. The West Siberian basin which is one of the main oil and gas regions of Russia is characterized not only by classical structural traps but also by extremely complex geological objects of Achimov sequence. Thereby, it is quite difficult to evaluate perspectives of license areas within which we can discover those Achimov type of deposits, especially at regional stage exploration in terms of a complete absence of 3D seismic data and uneven coverage of area by 2D seismic surveys. Aim. This article is devoted to the methodology description for probabilistic assessment of the resource base of non-structural traps in the Achimov strata in areas with different 2D-seismic exploration degree. Materials and methods. The methodology based on the “density” method which in relation to the evaluated area uses statistics of estimated parameters and number of bodies in the field analogs. The general line of this paper is how to use this methodology for resource base evaluation in the zones of Achimov deposits intersection as the most promising from the point of further development. Results. As part of the project evaluation according to the proposed approach, the resource base was divided into components — resources of objects in areas of possible intersection and resources of single, non-intersecting objects. Conclusions. It provides an opportunity to spot and conduct a technical and economic assessment of previously uneconomic reservoirs.

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Xing, Xu-Feng, Mir Abolfazl Mostafavia und Chen Wang. „EXTENSION OF RCC TOPOLOGICAL RELATIONS FOR 3D COMPLEX OBJECTS COMPONENTS EXTRACTED FROM 3D LIDAR POINT CLOUDS“. ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B3 (09.06.2016): 425–32. http://dx.doi.org/10.5194/isprs-archives-xli-b3-425-2016.

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Topological relations are fundamental for qualitative description, querying and analysis of a 3D scene. Although topological relations for 2D objects have been extensively studied and implemented in GIS applications, their direct extension to 3D is very challenging and they cannot be directly applied to represent relations between components of complex 3D objects represented by 3D B-Rep models in R3. Herein we present an extended Region Connection Calculus (RCC) model to express and formalize topological relations between planar regions for creating 3D model represented by Boundary Representation model in R3. We proposed a new dimension extended 9-Intersection model to represent the basic relations among components of a complex object, including disjoint, meet and intersect. The last element in 3*3 matrix records the details of connection through the common parts of two regions and the intersecting line of two planes. Additionally, this model can deal with the case of planar regions with holes. Finally, the geometric information is transformed into a list of strings consisting of topological relations between two planar regions and detailed connection information. The experiments show that the proposed approach helps to identify topological relations of planar segments of point cloud automatically.

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Liu, Yong Shan, und Wei Jie Gu. „Research on Combinational Reasoning of Directional Relations Based on Double Projections Model in Three-Dimensional Space“. Advanced Materials Research 186 (Januar 2011): 61–65. http://dx.doi.org/10.4028/www.scientific.net/amr.186.61.

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The xoy and xoz planes are divided into nine areas in three-dimensional space respectively by the MBR (Minimum Bounding Rectangle), which are produced by the reference objects’ projection to their planes. The intersecting situations between the projection of target objects and the two of reference objects are expressed by two 3×3 matrices. Then, a directional relations matrix model based on double projections is put forward. A combinational reasoning method is proposed by using the computational performance of matrices based on this model. Moreover, a combinational reasoning experiment is given and the result matches the reality.

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Xing, Xu-Feng, Mir Abolfazl Mostafavia und Chen Wang. „EXTENSION OF RCC TOPOLOGICAL RELATIONS FOR 3D COMPLEX OBJECTS COMPONENTS EXTRACTED FROM 3D LIDAR POINT CLOUDS“. ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B3 (09.06.2016): 425–32. http://dx.doi.org/10.5194/isprsarchives-xli-b3-425-2016.

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Topological relations are fundamental for qualitative description, querying and analysis of a 3D scene. Although topological relations for 2D objects have been extensively studied and implemented in GIS applications, their direct extension to 3D is very challenging and they cannot be directly applied to represent relations between components of complex 3D objects represented by 3D B-Rep models in R3. Herein we present an extended Region Connection Calculus (RCC) model to express and formalize topological relations between planar regions for creating 3D model represented by Boundary Representation model in R3. We proposed a new dimension extended 9-Intersection model to represent the basic relations among components of a complex object, including disjoint, meet and intersect. The last element in 3*3 matrix records the details of connection through the common parts of two regions and the intersecting line of two planes. Additionally, this model can deal with the case of planar regions with holes. Finally, the geometric information is transformed into a list of strings consisting of topological relations between two planar regions and detailed connection information. The experiments show that the proposed approach helps to identify topological relations of planar segments of point cloud automatically.

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LI, XIAODONG, WUNIAN YANG, TIANQI AO, HONGXIA LI und WENQING CHEN. „AN IMPROVED APPROACH OF INFORMATION EXTRACTION FOR EARTHQUAKE-DAMAGED BUILDINGS USING HIGH-RESOLUTION IMAGERY“. Journal of Earthquake and Tsunami 05, Nr. 04 (November 2011): 389–99. http://dx.doi.org/10.1142/s1793431111001157.

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The development of remote sensing technology, especially the availability of high-resolution satellite imagery, has been applied to building recognition, hazard investigation and rapid pre-evaluation in post-earthquake management. Existing pixel-oriented approaches which are commonly used for satellite high-resolution imagery have limitations in information extraction, ground object classification, and processing speed. This paper presents an object-oriented method to extract earthquake-damaged building information using high-resolution remote sensing imagery of the 5.12 Wenchuan Earthquake. This method segmented the whole image into non-intersecting pieces of image objects, and then classified these pieces to extract damaged/undamaged buildings using image features such as spectral characters, textures, shapes, and their contexts. The results show a higher-precision classification than conventional methods.

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Tuerk-Stonberg, Jacquelyn. „Magical Amulets, Magical Thinking, and Semiotics in Early Byzantium“. Old World: Journal of Ancient Africa and Eurasia 1, Nr. 1 (13.09.2021): 1–23. http://dx.doi.org/10.1163/26670755-01010004.

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Abstract The term ‘magic’ is problematic. Magic studies have rapidly developed in recent decades and have suggested various ways of understanding the term, especially regarding objects from the medieval Roman Empire, Byzantium. Two early Byzantine amulets (as case studies) display conventional semiotic structures, which include persuasive analogy, speech-acts, and show-acts. Persuasive analogy, speech-acts, and show-acts – and how they organize information – operate also in religious, medical, and philosophical examples. Accordingly, art, archaeology, and texts of ritual power exemplify intersecting communities of thought and various types of social practices. Magic studies is interdisciplinary, and it encourages critique of modern assumptions regarding authority and of our intellectual colonization of times past. This essay is broad with several object examples across media, written as a conference presentation. Another approach to these semiotic structures on magical amulets – with examination of fewer objects and wider attention to the historiography of magic studies – will appear in the forthcoming Oxford Handbook on Byzantine Art and Architecture, ed. Ellen Schwartz.

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Guest, S. D., und P. W. Fowler. „Mobility of ‘ N -loops’: bodies cyclically connected by intersecting revolute hinges“. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 466, Nr. 2113 (07.10.2009): 63–77. http://dx.doi.org/10.1098/rspa.2009.0370.

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The mobilities of many objects from toys and molecular models to large-scale deployable structures can be understood in terms of N -loops: sets of N bodies, cyclically connected by pairs of intersecting revolute hinges. A symmetry-extended version of the Grübler criterion for counting kinematic degrees of freedom is used to explain and rationalize the observed mobilities of N -loops with small N . Compared with simple counting, the symmetry-based approach gives improved detection and visualization of mechanisms and states of self-stress. It can also give a better account of the differing mobilities of conformers occupying different regions of the phase space, such as the rigid chair and flexible boat forms of cyclohexane.

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Kalyana Rama, S. „On the stability of (M theory) stars against collapse: Role of anisotropic pressures“. International Journal of Modern Physics A 30, Nr. 27 (30.09.2015): 1550165. http://dx.doi.org/10.1142/s0217751x15501651.

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Unitarity of evolution in gravitational collapses implies existence of macroscopic stable horizonless objects. With such objects in mind, we study the effects of anisotropy of pressures on the stability of stars. We consider stars in four or higher dimensions and also stars in M theory made up of (intersecting) branes. Taking the stars to be static, spherically symmetric and the equations of state to be linear, we study “singular solutions” and the asymptotic perturbations around them. Oscillatory perturbations are likely to imply instability. We find that nonoscillatory perturbations, which may imply stability, are possible if an appropriate amount of anisotropy is present. This result suggests that it may be possible to have stable horizonless objects in four or any higher dimensions, and that anisotropic pressures may play a crucial role in ensuring their stability.

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LEE, DOO-SUNG, R. P. GILBERT und NOAM ZEEV. „CLASSIFICATION OF OBJECTS IN AN ACOUSTIC WAVEGUIDE BY INVERSION OF THE FARFIELD DATA“. Journal of Computational Acoustics 14, Nr. 02 (Juni 2006): 185–99. http://dx.doi.org/10.1142/s0218396x06003025.

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In this paper we investigate the unknown body problem in a waveguide. The Rayleigh conjecture states that every point on an illuminated body radiates sound from that point as if the point lies on its tangent sphere. This conjecture is the cornerstone of the intersecting canonical body approximation ICBA for solving the unknown body inverse problem. Therefore, the use of the ICBA requires that an analytical solution be known exterior to the sphere in the waveguide, which leads us to analytically compute the exterior solution for a sphere between two parallel plates. A least-squares matching of theoretical acoustic fields against the measured, scattered field permits a reconstruction of the unknown object.

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Lelyukhin, Vladimir Egorovich, und Olga Valeryevna Kolesnikova. „Geometry of real objects in shipbuilding and ship repair“. Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies 2020, Nr. 1 (17.02.2020): 31–44. http://dx.doi.org/10.24143/2073-1574-2020-1-31-44.

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The article considers the modern engineering practice of designing and manufacturing that uses various analytical and graphic forms representing geometric objects. Both of these forms are characterized by the presence of two problems in terms of production practice: 1 - tools of modern geometry cannot operate with non-ideal forms and configurations of material objects; 2 - lack of methods and tools for describing patterns of generating geometric objects, from production lines to the structure that characterizes the relative location of surfaces. The generalized provisions of the geometry of non-ideal objects theoretically justified for formal synthesis and their elements have been presented, which avoids problems of geometric configuration in the practice of designing and developing manufacturing technologies in shipbuilding and ship repair. A special toolkit based on discrete mathematics is proposed for the formal description of the geometric configuration of non-ideal objects. The principles of geometry of real objects describe the structural-parametric representation of objects in a six-dimensional space that is defined by linear and angular vectors. The concepts of linear and angular vectors are analyzed. It has been stated that the presence of an angular vector simplifies the perception and makes easier calculating the processes of geometric transformations. A geometrical object refers to a closed subspace bounded by a single surface, a set of mating or intersecting surfaces. The examples of the real plane deviations from its reference, location of the planes for creating the ideal geometric configuration, variants of real images, forming the basis for six-dimensional space, structure of geometric configurations have been illustrated. It has been found that any specific part acting as a geometric object can be represented by a set of surfaces and the structure of their relationships, which contributes to the correctness of its manufacture. The use of six-dimensional space allows to describe the spatial geometric configurations of parts of various mechanisms with mathematical accuracy.

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Lebedeva, Ol'ga. „THE PROBLEM OF OPTIMIZING BUS ROUTE USING GEOINFORMATION ENVIRONMENT“. Bulletin of the Angarsk State Technical University 1, Nr. 15 (12.01.2022): 139–44. http://dx.doi.org/10.36629/2686-777x-2021-1-15-139-144.

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The public transport system is characterized by a complex transport network, intersecting routes and fragmented stopping points. In this regard, the functioning of the transport system to ensure optimal planning of bus transportation is an urgent task. A solution to this problem can be a multi-level model that allows you to represent network objects at several spatial levels, calculate the exact time delay, and meet the needs of planning bus trips with various optimization criteria

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Muckelbauer, John. „Imitation and Invention in Antiquity: An Historical-Theoretical Revision“. Rhetorica 21, Nr. 2 (2003): 61–88. http://dx.doi.org/10.1525/rh.2003.21.2.61.

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Contemporary scholarship on classical imitation tends to analyze the practice by dividing it up based on the subjects and objects of imitation. The result of this common procedure has been an anachronistic solidification of disciplinary lines among rhetoric, philosophy, and poetics. An equally relevant effect has been the polarization of the practices of imitation and those concerned with invention. This paper seeks to elaborate a different taxonomy with which to approach imitation, one that focuses primarily on the encounter between subjects and objects in the actual practice of imitation. By attending to the complex relations of repetition and variation across disciplinary lines, this new taxonomy offers insight into the often overlooked connections between imitation and invention in the intersecting realms of rhetoric, philosophy, and poetics.

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SCHADEN, MARTIN. „IRREDUCIBLE SCALAR MANY-BODY CASIMIR ENERGIES: THEOREMS AND NUMERICAL STUDIES“. International Journal of Modern Physics: Conference Series 14 (Januar 2012): 501–10. http://dx.doi.org/10.1142/s2010194512007635.

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We define irreducible N-body spectral functions and Casimir energies and consider a massless scalar quantum field interacting locally by positive potentials with classical objects. Irreducible N-body spectral functions in this case are shown to be conditional probabilities of random walks. The corresponding irreducible contributions to scalar many-body Casimir energies are finite and positive/negative for an odd/even number of objects. The force between any two finite objects separable by a plane is always attractive in this case. Analytical and numerical world-line results for the irreducible four-body Casimir energy of a scalar with Dirichlet boundary conditions on a tic-tac-toe pattern of lines are presented. Numerical results for the irreducible three-body Casimir energy of a massless scalar satisfying Dirichlet boundary conditions on three intersecting lines forming an isosceles triangle are also reported. In both cases the symmetric configuration (square and isosceles triangle) corresponds to the minimal irreducible contribution to the Casimir energy.

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Belohlavek, Marek, Toshihiko Asanuma, Randall R. Kinnick und James F. Greenleaf. „Vibro-Acoustography: Quantification of Flow with Highly-Localized Low-Frequency Acoustic Force“. Ultrasonic Imaging 23, Nr. 4 (Oktober 2001): 249–56. http://dx.doi.org/10.1177/016173460102300403.

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The intersection of two ultrasound beams with slightly different frequencies results in generation of a localized radiation force and stimulates emission of audio signals from targeted objects. Vibro-acoustography uses this phenomenon to probe elastic properties of objects. Vibro-acoustography of contrast microbubbles in degassed water produced quantitative flow measurements from analysis of their acoustic emission. We used a dual-beam transducer generating bursts of 40-kHz vibrations. The vibrations resulted from interference of 3.48-MHz and 3.52-MHz confocal beams intersecting at the center of a thin plastic conduit. We tested flows of 13, 48, 85, and 120 mL/min of contrast microbubbles at concentrations from 1.2 times 105 to 6 times 105 bubbles/mL. The amplitude of the acoustic emission was linear with microbubble concentrations up to a value of 3.6 times 105 bubbles/mL. A replenishment method for microbubble contrast and flow rate analysis was used with radiation force bursts deployed at 0.05, 0.1, 0.2, 0.5, 1, and 2-second pulsing intervals. The relation between the pulsing intervals and the peak amplitude was fitted by an exponential curve and a rate constant calculated for each tested flow rate. The rate constant values were linearly correlated with the tested flows. The vibro-acoustography method provides objective, quantitative, and highly-localized assessment of flow using contrast microbubbles.

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Christou, Anastasia, und Hania Janta. „The significance of things: Objects, emotions and cultural production in migrant women’s return visits home“. Sociological Review 67, Nr. 3 (06.12.2018): 654–71. http://dx.doi.org/10.1177/0038026118816906.

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This article draws on qualitative research in Basel, Switzerland with highly skilled migrant women from various European nationalities employed in a number of professional sectors. It seeks to contribute to the literatures on the sociologies of migration and the sociologies of everyday life by intersecting the conceptual frame of ‘affective habitus’ with the phenomenology of material culture in unpacking how emotions triggered by objects shape settling practices in host societies. The analysis centres on pathways of cultural production as they unfold through memories, objects and experiential return visits. The authors find sociological depth in applying ‘affective habitus’ as the conceptual framing to examine how mediations of memory and emotions can extend understandings of how women migrants create agentic ways to settle in new host societies while making cultural accommodations. The conceptual terrain of ‘affective habitus’ is theorised through a phenomenological approach to gendered migrancy and cultural materiality in everyday life.

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Zhao, Bufan, Xianghong Hua, Kegen Yu, Xiaoxing He, Weixing Xue, Qiqi Li, Hanwen Qi, Lujie Zou und Cheng Li. „An Inverse Node Graph-Based Method for the Urban Scene Segmentation of 3D Point Clouds“. Remote Sensing 13, Nr. 15 (01.08.2021): 3021. http://dx.doi.org/10.3390/rs13153021.

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Urban object segmentation and classification tasks are critical data processing steps in scene understanding, intelligent vehicles and 3D high-precision maps. Semantic segmentation of 3D point clouds is the foundational step in object recognition. To identify the intersecting objects and improve the accuracy of classification, this paper proposes a segment-based classification method for 3D point clouds. This method firstly divides points into multi-scale supervoxels and groups them by proposed inverse node graph (IN-Graph) construction, which does not need to define prior information about the node, it divides supervoxels by judging the connection state of edges between them. This method reaches minimum global energy by graph cutting, obtains the structural segments as completely as possible, and retains boundaries at the same time. Then, the random forest classifier is utilized for supervised classification. To deal with the mislabeling of scattered fragments, higher-order CRF with small-label cluster optimization is proposed to refine the classification results. Experiments were carried out on mobile laser scan (MLS) point dataset and terrestrial laser scan (TLS) points dataset, and the results show that overall accuracies of 97.57% and 96.39% were obtained in the two datasets. The boundaries of objects were retained well, and the method achieved a good result in the classification of cars and motorcycles. More experimental analyses have verified the advantages of the proposed method and proved the practicability and versatility of the method.

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Araújo Neto, Alfredo Silveira. „Optimization Inspired on Herd Immunity Applied to Non-Hierarchical Grouping of Objects“. Revista de Informática Teórica e Aplicada 28, Nr. 2 (29.08.2021): 50–65. http://dx.doi.org/10.22456/2175-2745.107478.

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Characterized as one of the most important operations related to data analysis, one non-hierarchical grouping consists of, even without having any information about the elements to be classified, establish upon a finite collection of objects, the partitioning of the items that constitute it into subsets or groups without intersecting, so that the elements that are part of a certain group are more similar to each other than the items that belong to distinct group. In this context, this study proposes the application of a meta-heuristic inspired by herd immunity to the determination of the non-hierarchical grouping of objects, and compares the results obtained by this method with the answers provided by four other grouping strategies, described in the literature. In particular, the resulting arrangements of the classification of 33 benchmark collections, performed by the suggested algorithm, by the metaheuristic inspired by the particle swarm, by the genetic algorithm, by the K-means algorithm and by the meta-heuristic inspired by the thermal annealing process, were compared under the perspective of 10 different evaluation measures, indicating that the partitions established by the meta-heuristic inspired by the herd immunity may, in certain respects, be more favorable than the classifications obtained by the other clustering methods.

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Roux, Dominique, und Valérie Guillard. „Circulation of objects between strangers in public space: An analysis of forms of sociality among disposers and gleaners“. Recherche et Applications en Marketing (English Edition) 31, Nr. 4 (20.08.2016): 28–46. http://dx.doi.org/10.1177/2051570716664153.

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The aim of this article is to understand how objects circulate between people who deposit them on the sidewalk (disposers), especially on “bulky item” collection (BIC) days and those who retrieve them (gleaners). Analysis of representations of 17 disposers and/or gleaners reveals three forms of sociality: (1) charitable donation (or disposing of items out of a wish to pass them on to other people), (2) balanced reciprocity (in which disposers and gleaners both view BIC as a system for the circulation of objects), and (3) generalized reciprocity (in which the desire to pool possessions is augmented by the wish to combat waste). The findings also reveal that the anonymity of the context leads disposers and gleaners to intersecting interpretations of what the other party is doing (for whom and why), which fuel and sometimes temper these forms of sociality. The findings add to the existing literature on disposition/gleaning by uncovering the forms of sociality at work between strangers in public space and the distinctive and anonymous circulation of objects resulting from them. The findings are also of relevance to public actors regarding the issues arising for waste management.

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Sack, Jörg-Rüdiger, und Godfried T. Toussaint. „Separability of pairs of polygons through single translations“. Robotica 5, Nr. 1 (Januar 1987): 55–63. http://dx.doi.org/10.1017/s0263574700009644.

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SUMMARYLet P = {p1, …,pn} and Q = {q1,…,qm} be two simple polygons in the plane with non-intersecting interiors, the vertices of which are specified by their cartesian coordinates in order. The translation separability query asks whether there exists a direction in which P can be translated by an arbitrary distance without colliding with Q. It is shown that all directions that admit such a motion can be computed in O(nlogm) time, where n > m, thus improving the previous complexity of O(nm) established for this problem. In designing this algorithm a polygon partitioning technique is introduced that may find application in other geometric problems.The algorithm presented in this paper solves a simplified version of the grasping problem in robotics. Given a description of a robot hand and a set of objects to be manipulated, the robot must determine which objects can be grasped. The solution given here assumes a two-dimensional world, a hand without an arm, and grasping under translation only.

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Freudenberg, Maren, und Tim Weitzel. „Introduction to the Special Issue on ‘Charisma’“. Journal of Religion in Europe 12, Nr. 2 (24.01.2019): 99–114. http://dx.doi.org/10.1163/18748929-01202001.

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The introduction to the special issue on ‘charisma’ offers a very brief overview of the development of the concept in the social sciences and various critiques and intersecting debates. It casts a close look at Max Weber’s sometimes contradictory use of the concept and the different ways he conceptualized it in his sociology of religion and his sociology of domination. It then examines alternative theoretical approaches to ‘charisma’ that emerge in the course of the twentieth century before outlining this special issue’s contribution to the conceptual debate and the individual articles’ operationalization of the term by viewing charisma as relational, communicative, procedural, as well as related to ideas, practices, and objects.

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KUCHIN, O. S. „Theoretical and practical aspects of correlation between operational searching and forensic science (forensic assessment of the results of operational searching on the example of test purchases)“. Ius Publicum et Privatum 2, Nr. 12 (30.06.2021): 127–32. http://dx.doi.org/10.46741/2713-2811-2021-2-127-132.

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Operative-search activity as a science in its theoretical and practical content is closest to forensic science. They have similar objects of research– criminal activity and the activities of authorized state bodies to identify, disclose and investigate it. Specialists in the field of operative-search activity and forensic science note a lot in common in the genesis of both sciences, theoretical positions, methods, tactical and methodological recommendations. In addition, examining the history of the formation of forensic science and operational-search activity, one can come to a reasonable conclusion that both sciences formed a single whole for a long time and then each developed in its own direction, intersecting and moving away from each other in its genesis.

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Salleh, Syahiirah, Uznir Ujang und Suhaibah Azri. „Representing 3D Topological Adjacencies between Volumes Using a 36-Intersection Model“. Geomatics and Environmental Engineering 16, Nr. 2 (03.03.2022): 127–55. http://dx.doi.org/10.7494/geom.2022.16.2.127.

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Topological properties of objects should be maintained and preserved to concisely represent objects. However, the implementation of 2D topological rules requires the decomposition of 3D objects into lower dimensions to determine topological relationships. This results in 2D topological relationships although the connected objects are in 3D. Hence, accurate representation of 3D connectivity in 3D models is limited. 3D topological rules can be implemented to include topological connectivity in 3D space. This paper implemented an extension of the 27-Intersection Model (27-IM) called the 36-Intersection Model (36-IM) to represent 3D topological adjacencies of two objects in 3D space. This resulted in a 12 × 3 intersection matrix or 36-IM that represented the intersections in terms of dimension and number of separations. Six cases were tested, consisting of “meets”, “disjoint” “intersects at a line”, “intersects at a point”, “contains”, and “overlaps”. The resulting 36-IM matrices provided an accurate representation of how the objects in 3D space were related and their dimension of intersections. The formalisms of the 36-IM matrices were also interoperable which allowed the interpretation of 36-IM using the 9IM and DE-9IM to determine general topological relationships. By examining the intersection of interiors, boundaries and exteriors of 3D objects without object decomposition, 3D topological relationships can be determined as well as the dimension and manner of intersection.

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Sarwar, Musavarah. „A Theoretical Investigation Based on the Rough Approximations of Hypergraphs“. Journal of Mathematics 2022 (07.03.2022): 1–19. http://dx.doi.org/10.1155/2022/1540004.

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Rough sets are a key tool to model uncertainty and vagueness using upper and lower approximations without predefined functions and additional suppositions. Rough graphs cannot be studied more effectively when the inexact and approximate relations among more than two objects are to be discussed. In this research paper, the notion of a rough set is applied to hypergraphs to introduce the novel concept of rough hypergraphs based on rough relations. The notions of isomorphism, conformality, linearity, duality, associativity, commutativity, distributivity, Helly property, and intersecting families are illustrated in rough hypergraphs. The formulae of 2-section, L2-section, covering, coloring, rank, and antirank are established for certain types of rough hypergraphs. The relations among certain types of products of rough hypergraphs are studied in detail.

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Corcuff, Philippe. „Television Series as Critical Theories: From Current Identitarianism to Levinas. American Crime, The Sinner, Sharp Objects, Unorthodox“. Open Philosophy 5, Nr. 1 (16.12.2021): 105–17. http://dx.doi.org/10.1515/opphil-2020-0160.

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Abstract Critical theory with emancipatory aims today to find a source of regeneration in ordinary cultures, and in particular, in TV series. Certain series can play a role in reinventing critical theories, drawing on the tradition of the Frankfurt School but shifting some of that School’s formulations through contact with current forms of interpretive sociology and pragmatic sociology. This requires a cross-border dialogue between the “language game” of TV series and the “knowledge game” of political theory, to use concepts inspired by Ludwig Wittgenstein. In this article, I will focus on four series: seasons 1 of American Crime (2015) and The Sinner (2017); Sharp Objects (2018); and Unorthodox (2020). The resources provided by these cultural works can help us formulate a critical decoding of important aspects of the current ideological context, in particular, the intersecting identitarian and ultra-conservative tendencies we find in France, Europe, the United States, and Brazil. These critical resources bear affinities to a political philosophy of the opening of being inspired by the ethical reflections of Emmanuel Levinas.

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Tadaki, Marc, Jennifer Salmond und Richard Le Heron. „Applied climatology“. Progress in Physical Geography: Earth and Environment 38, Nr. 4 (23.01.2014): 392–413. http://dx.doi.org/10.1177/0309133313517625.

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Applied climatology has long been a niche domain, straddling the intersection between the social and natural sciences and populated largely by geographers explicitly interested in reframing human activities around climate. As human-atmospheric relations become increasingly embedded within institutions of governance, new narratives of and for applied climatology are emerging to champion particular atmospheric objects, orientations, practices and institutions into positions of policy relevance and investment priority. This paper attempts to understand these intersecting politics of ‘climate and society’ research by situating their emergence through three lenses of inquiry. First, we explore the historical disciplinary work of ‘application’ in geographical climatology, paying particular attention to how ‘relevance’ has been understood and practised. Second, we reassemble a missed disciplinary conversation about ideology in applied geography, and link this to definitions and rationales for applied climatology. Third, we explore five recent thematic engagements in applied climatology, to generate thinking about the institutions and practices of assembling climate in new circles of ‘application’, policy and elsewhere. The ‘applications’ that climatologists choose to pursue – and the ways in which they pursue them – are deeply political questions that reproduce decision-making logics, funding rationalities, notions of expertise and problem framings. In conclusion, we argue that, rather than understanding ‘climate’ and ‘society’ as stable entities with standard (e.g. quantitative) practices or modes of association, we might instead concern ourselves with the practices of assembling human-atmospheric relations.

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Zhou, X. G., und H. S. Wang. „A QUADTREE SPATIAL INDEX METHOD WITH INCLUSION RELATIONS FOR THE INCREMENTAL UPDATING OF VECTOR LANDCOVER DATABASE“. ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-4 (19.09.2018): 757–61. http://dx.doi.org/10.5194/isprs-archives-xlii-4-757-2018.

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Abstract. In vector landcover database, there are a lot of complex polygons with many holes, even nesting holes. In the incremental updating (i.e., using the change-only information to update the land cover database), a new changed parcel usually has 2-dimensional intersections (e.g., overlap, cover, equal and inside, etc.) with several existing regions, automatic updating operations need to identify the affected objects for the new changes at first. If the existing parcels include complex polygons (i.e., the polygon with holes), it is still needed to determine if there are 2-dimensional intersections between the new changed polygon and each holes of the involved complex polygons. The relation between the complex polygon and its holes has not been presented in the current spatial data indexing methods, only the MBB (Minimum Bounding Box) of the exterior ring of the complex polygon has been stored, the non-involved holes can not be filtered at the first step of spatial access methods. As the refinement geometric operation is costly, therefore the updating process for the complex polygons is very complicated and low efficient using the current spatial data indexing methods. In order to solve this problem, an improved quadtree spatial index method is presented in this paper. In this method, the polygons is divided to two categories according to the relations with the quadrant axes, i.e., disjoint to the axes and intersect with the axes. The intersect polygons are still divided to 5 cases according to the intersection position among the polygons and the different level quadrant axes. The intersection polygons are stored in the different level root nodes in our index tree, and five buckets denoted as XpB, XnB, YpB, YnB, XYB are used to store the polygons intersecting the different level quadrant axes respectively. The polygons disjoint to all quadrant axes are stored in the leaf nodes in this method. The authors developed the spatial index structure with inclusion relations and the algorithms of the corresponding index operations (e.g., insert, delete and query) for the complex polygons. The effectiveness of the improved index is verified by an experiment of land cover data incremental updating. Experimental results show that the proposed index method is significantly more efficient than the traditional quadtree index in terms of spatial query efficiency, and the time efficiency of the incremental updating is increased about 3 times using the proposed index method than that using the traditional quadtree index.

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Li, Wangyang, Minyi Li, Yongai Jin, Shiqi Wang und Yi Zhang. „Double Jeopardy in Contemporary China: Intersecting the Socioeconomic Gradient and Geographic Context on Early Childhood Development“. International Journal of Environmental Research and Public Health 17, Nr. 14 (08.07.2020): 4937. http://dx.doi.org/10.3390/ijerph17144937.

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Family socioeconomic status (SES) differences in early childhood development (ECD) are well documented, as are the neighborhood effects in early development outcomes. However, little is known about whether the SES gradient in ECD outcomes varies across geographic contexts by county-level variables in contemporary China. This study examines the effects of county-level socioeconomic background on inequalities in the developmental outcomes of young Chinese children. Individual-level child development data based on four early development milestones—taking a first step, first sentences, counting 10 objects, fully independent toileting—were combined with family- and county-level socioeconomic data from the China Family Panel Studies (CFPS). Using a hierarchical linear model (HLM) to examine how the broader socioeconomic context plays a role in the attainment of developmental milestones at expected times as young children grow and develop, we have found significant cross-level interaction effects between family SES and county-level variables in relation to developmental milestone attainment. The family SES gradient in the achievement of children’s developmental milestones is steeper for those in the under-developed regions than their counterparts in the more developed regions. Our findings suggest that low-SES children who are living in socioeconomically deprived regions suffer from a double disadvantage in terms of early development outcomes. Further research would be needed to contextualize the observed interactions and better explain the underlying mechanisms.

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Jackson, Robert. „The Facticity of Things – Reframing Slotawa's Practice with Meillassoux and Harman“. eitschrift für Ästhetik und Allgemeine Kunstwissenschaft Band 60. Heft 1 60, Nr. 1 (2015): 55–79. http://dx.doi.org/10.28937/1000106258.

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Robert Jackson examines the work of the German artist Florian Slotawa. Beginning with his first works, “Hotelarbeiten”, Slotawa recomposes and reconfigures the order of ordinary objects – in this case, the furniture of hotel rooms. In reconstructing these rooms in another order without altering these objects in any way, photographing them, and then subsequently restoring them to their previous configuration, the artist reveals the ordinary function of the objects and by withdrawing from their function shows their material and factual character. To elucidate the specificity of Slotawa’s intervention, Jackson critiques Heidegger’s conception of facticity in its exclusive account of Dasein and its being-in-the world, in contrast to the factuality of “things-within-the world.” Drawing on Harman’s extension of finitude beyond Dasein to all things, he encourages us to see Slotawa as engaged in “facticity of things” that is characterized by dispossession, lack of reason, and radical contingency. As Jackson argues, Slotawa is trying to find a way to dwell in a world that has no room or possibility for the given coordinates of dwelling; a world that is a fact without reason. In concluding he explores a reading of Slotawa that explores the intersecting yet radically different approaches to thinking about a speculative realism in the work of Harman and Meillassoux, and their differing attitudes to the finite and the infinite, facticity and factiality, contingency and necessity, without presuming to assume that either of these accounts cover the speculative facticity of things revealed in Slotawa’s work.

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Wang, Huan, Qingyuan Meng, Min Ouyang und Ruishi Liang. „A Correlation Evaluation Method for Complex Objects“. Journal of Advanced Computational Intelligence and Intelligent Informatics 23, Nr. 2 (20.03.2019): 323–27. http://dx.doi.org/10.20965/jaciii.2019.p0323.

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Data correlation evaluation is the basis for data analysis, and the academic community has proposed many indicators to evaluate it, such as the Euclidean distance, and angle cosine, and so on. However, it is difficult for these indicators to effectively express the correlation degree of complex objects. Using traffic intersections as an example, this article proposes an effective method to evaluate the correlation between complex objects. First, based on a large quantity of basic data, a standard data format describing traffic intersection attributes was proposed. Then, experienced engineers were asked to grade the correlation between intersections. Finally, the two intersection standard format datasets were used as model inputs, the engineer correlation rating as the output of the model, and the support vector machine model was employed for training. The results of this data experiment demonstrate that the trained model can effectively express the correlation degree between traffic intersections, and therefore proves the validity of the method.

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Hedström, Karin, Fredrik Karlsson und Fredrik Söderström. „Challenges of introducing a professional eID card within health care“. Transforming Government: People, Process and Policy 10, Nr. 1 (21.03.2016): 26–46. http://dx.doi.org/10.1108/tg-10-2013-0044.

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Purpose The purpose of this paper is to examine the challenges that arise when introducing an electronic identification (eID) card for professional use in a health-care setting. Design/methodology/approach This is a case study of an eID implementation project in healthcare. Data were collected through interviews with key actors in a project team and with eID end users. The authors viewed the eID card as a boundary object intersecting social worlds. For this analysis, the authors combined this with an electronic government initiative challenge framework. Findings The findings of this paper illustrate the interpretative flexibility of eID cards and how eID cards as boundary objects intersect social worlds. The main challenges of implementing and using eID cards in healthcare are usability, user behaviour and privacy. However, the way in which these challenges are interpreted varies between different social worlds. Practical implications One of the implications for future practice is to increase our understanding of the eID card as a socio-technical artefact, where the social and technical is intertwined, at the same time as the eID card affects the social as well as the technical. By using a socio-technical perspective, it is possible to minimise the potential problems related to the implementation and use of eID. Originality/value Previous research has highlighted the need for more empirical research on identity management. The authors contextualise and analyse the implementation and use of eID cards within healthcare. By viewing the eID card as a boundary object, the authors have unveiled its interpretative flexibility and how it is translated across different social worlds.

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Zeitschriftenartikel zum Thema „Intersecting objects“

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