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8th international and interdisciplinary conference on modeling and using context (context)

作者： Hegarty, John Brezillon, Patrick Adam, Frederic Univ Paris 06 LIP6 Paris France Univ Coll Cork AFIS Cork Ireland

ISBN: (纸本)9783642409721;9783642409714

using contextual-Graphs (CxG) to represent organizational activity supports selecting key performance indicators (KPIs) that are free from causality assumptions and measuring practice-based organizational learning as distinct from organizational change. this paper presents four tools developed as part of a research program to extend CxG to practice-based organizational learning and performance improvement. Aspectual comparison of practices represented in contextual graphs together with a practice-based organizational learning novelty typology, a practice maturity model, and an organizational-performance-improvement prioritization matrix operationalize the construct of practice maturity that is proposed as a guide for researchers and practitioners in understanding and improving practice-based activity management. Results are presented for a transport planning organization that elucidate the role of context in practice-based organizational learning and performance improvement in the case of an activity (light rail route selection) that involved both political/managerial and engineering decisions.

关键词： modeling context in organizational activity assessing practice maturity strategic decisions tactical decisions using context to leverage lessons learned from experience contextual graphs

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Optimizing Load Distribution in Camera Networks with a Hypergraph Model of Coverage Topology

Optimizing Load Distribution in Camera Networks with a Hyper...

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13th international conference on Advanced Concepts for Intelligent Vision Systems (ACIVS) / 5th ACM/IEEE international conference on Distributed Smart Cameras (ICDSC)

作者： Mavrinac, Aaron Chen, Xiang Univ Windsor Dept Elect & Comp Engn Windsor ON N9B 3P4 Canada

ISBN: (纸本)9781457717079

A new topological model of camera network coverage, based on a weighted hypergraph representation, is introduced. the model's theoretical basis is the coverage strength model, presented in previous work and summarized here. Optimal distribution of task processing is approximated by adapting a local search heuristic for parallel machine scheduling to this hypergraph model. Simulation results are presented to demonstrate its effectiveness.

关键词： Adaptation models Cameras Computational modeling context context modeling Load modeling Smart cameras

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Inferring domain-domain interactions from protein-protein interactions in the complex network conformation

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BMC SYSTEMS BIOLOGY 2012年第Sup1期6卷 S7-S7页

作者： Chen, Chen Zhao, Jun-Fei Huang, Qiang Wang, Rui-Sheng Zhang, Xiang-Sun Chinese Acad Sci Acad Math & Syst Sci Beijing 100190 Peoples R China Penn State Univ Dept Phys University Pk PA 16802 USA Chinese Acad Sci Natl Ctr Math & Interdisciplinary Sci Beijing 100190 Peoples R China

Background: As protein domains are functional and structural units of proteins, a large proportion of protein-protein interactions (PPIs) are achieved by domain-domain interactions (DDIs), many computational efforts have been made to identify DDIs from experimental PPIs since high throughput technologies have produced a large number of PPIs for different species. these methods can be separated into two categories: deterministic and probabilistic. In deterministic methods, parsimony assumption has been utilized. Parsimony principle has been widely used in computational biology as the evolution of the nature is considered as a continuous optimization process. In the context of identifying DDIs, parsimony methods try to find a minimal set of DDIs that can explain the observed PPIs. this category of methods are promising since they can be formulated and solved easily. Besides, researches have shown that they can detect specific DDIs, which is often hard for many probabilistic methods. We notice that existing methods just view PPI networks as simply assembled by single interactions, but there is now ample evidence that PPI networks should be considered in a global (systematic) point of view for it exhibits general properties of complex networks, such as 'scale-free' and 'small-world'. Results: In this work, we integrate this global point of view into the parsimony-based model. Particularly, prior knowledge is extracted from these global properties by plausible reasoning and then taken as input. We investigate the role of the added information extensively through numerical experiments. Results show that the proposed method has improved performance, which confirms the biological meanings of the extracted prior knowledge. Conclusions: this work provides us some clues for using these properties of complex networks in computational models and to some extent reveals the biological meanings underlying these general network properties.

关键词： PROTEIN-protein interactions PROTEIN conformation COMPUTATIONAL biology PARSIMONY (Statistics) PROBABILITY theory

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Inferring domain-domain interactions using an extended parsimony model

Inferring domain-domain interactions using an extended parsi...

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5th IEEE international conference on Systems Biology, ISB 2011

作者： Chen, Chen Zhao, Jun-Fei Huang, Qiang Wang, Rui-Sheng Zhang, Xiang-Sun National Center for Mathematics and Interdisciplinary Sciences Institute of Applied Mathematics Academy of Mathematics and Systems Science Beijing 100190 China Department of Physics Pennsylvania State University University Park PA 16802 United States

ISBN: (纸本)9781457716669

High-throughput technologies have produced a large number of protein-protein interactions (PPIs) for different species. As protein domains are functional and structural units of proteins, many computational efforts have been made to identify domain-domain interactions (DDIs) from PPIs. Parsimony assumption is widely used in computational biology as the evolution of the nature is considered as a continuous optimization process. In the context of identifying DDIs, parsimony methods try to find a minimal set of DDIs that can explain the observed PPIs. this category of methods are promising since they can be formulated and solved easily. Besides, researches have shown that they could detect specific DDIs, which is often hard for many probabilistic methods. In this paper, we revisit the parsimony model by presenting two important extensions. First, complex networks as an emerging concept is incorporated as prior knowledge into the parsimony model. With this improvement, the prediction accuracy increases, which to some extent enhances the biological meaning of the common property of complex networks. Second, two randomization tests are designed to show the parsimony nature of the DDIs in mediating PPIs, which corroborates the model validation. © 2011 IEEE.

关键词： Complex networks

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A capacity planning framework for event brokers in intelligent transportation cyber physical systems 11

A capacity planning framework for event brokers in intellige...

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Proceedings of the 5th ACM international conference on Distributed event-based system

作者： Laura K. Poff Mark P. McDonald Aniruddha S. Gokhale Vanderbilt University Nashville TN USA

ISBN: (纸本)9781450304238

Transportation engineering is a mature discipline of engineering that provides effective and efficient methods and tools for traffic modeling and capacity planning, however, these artifacts incur limitations in the context of intelligent transportation systems (ITS) because they seldom incorporate cyber issues in their design. Conversely, Computer Science provides many sophisticated solutions for resource management in the cyber world but often overlook physical issues inherent in ITS. Consequently, neither discipline prepares designers and planners to implement a fully functional ITS. Capacity planning solutions for ITS require solutions that can holistically integrate physical artifacts, such as traffic modeling, with cyber artifacts, such as solutions for real-time information dissemination over wireless networks. To address these challenges, this paper presents preliminary ideas on the design of a framework based on the principles of surrogate modeling wherein small-scale, micro-simulations of the ITS cyber physical system are used to develop training points, which in turn are used to train a surrogate model. the surrogate model is subsequently used to make planning decisions for ITS.

关键词： cyber-physical modeling event dissemination capacity planning design methodology interdisciplinary

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Proceedings of the CRR 2005 Workshop on context Representation and Reasoning - Colocated with the 5th international and interdisciplinary conference on modeling and using context, context 2005

Proceedings of the CRR 2005 Workshop on Context Representati...

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Workshop on context Representation and Reasoning, CRR 2005 - Colocated with the 5th international and interdisciplinary conference on modeling and using context, context 2005

the proceedings contain 10 papers. the topics discussed include: constructive CK for contexts;context in categorization;towards a context-aware relational model;representing context in an agent architecture for context-based decision making;modelling assumption-based reasoning using contexts;extracting assumptions from missing data;contextual reasoning in concept spaces;contextual effects on vagueness and the sorites paradox: a preliminary study;converging towards what? pragmatic and semantic competence;and a context theory for intensional programming.

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modeling and using context 5th international and interdisciplinary conference context 2005, Proceedings

Modeling and Using Context 5th International and Interdiscip...

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5th international and interdisciplinary conference context 2005 - modeling and using context

ISBN: (纸本)354026924X

the proceeding contains 41 papers. the topic discuss include: modelling the context of learning interactions in intelligent learning environments;contextual modals;epistemological contextualism: a semantic perspective;meaning in context;mobile phone talk in context;identification of textual contexts;context-aware configuration: a study on improving cell phone awareness;modeling context for referring in multimodal dialogue systems;contextual information systems;context building through socially-supported belief;an approach to data fusion for context awareness;goal-directed automated negotiation for supporting mobile user coordination;granularity as a parameter of context;and threat assessment technology development.

关键词： Intelligent agents

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A context-aware system architecture using personal information based on ontology

A context-aware system architecture using personal informati...

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5th ACIS international conference on Software Engineering Reseach, Management and Applications held in Conjuction with 1st international Workshop on Advanced Internet Technology and Applications

作者： Hwang, Hyun-Suk Shin, Seong-Hyun Kim, Ki-Uk Lee, Seok-Cheol Kim, Chang-Soo PuKyong Natl Univ Res Inst Ind Sci & Technol Pusan South Korea PuKyong Natl Univ Dept Interdisciplinary Program Informat Pusan South Korea PuKyong Natl Univ Dept Informat Engn Pusan South Korea

ISBN: (纸本)9780769528670

context-aware applications can satisfy users' information needs without consuming too much time in discovering information adaptive to users. In this paper, we propose a personalized information system to provide more user-oriented information considering context information such as a personal profile with preferences, location, traffic condition, weather, time, event, and so on. Our system architecture is designed to support an effective execution usage on Web set-vices and client applications. We implement a map viewer using a shape type of map format files with Points of Interest(PoI) information. Also, our system can provide associated search results from relations between the objects using context ontologies modeling created by the categorized layers of geospatial data.

关键词： Information systems

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three interactions between context and epistemic locutions

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6th international interdisciplinary conference on modeling and using context (context 2007)

作者： thomason, Richmond H. Univ Michigan Dept Philosophy Ann Arbor MI 48109 USA

I motivate and formalize three interactions between context and epistemic modalities, discussing (1) the effects of temporal perspective on knowledge of the future, (2) the effects of perceived risk on belief, and (3)... 详细信息

ISBN: (纸本)9783540742548

关键词： Knowledge representation

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context 2005 - Proceedings of the Workshops on Cooperative Systems and context, and, Groupware and context, Organized at the 5th international and interdisciplinary conference on modeling and using context

CONTEXT 2005 - Proceedings of the Workshops on Cooperative S...

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Workshops on Cooperative Systems and context;and, on context and Groupware, context 2005

the proceedings contain 10 papers. the topics discussed include: a learning interaction memory using contextual information;towards the narrative approach to collect group knowledge and context;AulaNetM: extension of the AulaNet environment to PDAs;context in collaborative mobile scenarios;the decision hedgehog - enhancing contextual knowledge for group decision authoring and communication support;contextual support for remote cooperative troubleshooting: lessons from a naturalistic study*;placing newly-arising goals in the proper context*;first steps in context modeling for conflicts characterization in cooperative task-execution support systems;towards rich context virtual worlds;and enhancing collaboration services with business context models.

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