Information professionals in some developing countries are likely to view 'context' differently from those in developed countries. 'context' becomes even more problematic when the searchers for informa...
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this paper proposes a Reuse-Oriented Process Component Representation framework for the description and classification, of Process Components (PCs). the key features of our approach are the division of process compone...
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ISBN:
(纸本)076952432X
this paper proposes a Reuse-Oriented Process Component Representation framework for the description and classification, of Process Components (PCs). the key features of our approach are the division of process component descriptions into a goal-oriented PCs General Information Description (PGD), an implementation-oriented PCs Specification Description (PSD) and an improvement-oriented PCs Data Description (PDD). A facet-based PC classification scheme and an XML-based process description method is presented A retrieval model based on tree-contaminent matching is given, which can improve the recall while maintaining a high level precision. Finally, a reuse based process and project management system (P2MS) to support process improvement and control is also introduced in this paper.
the integration of WLANs and CDMA networks has recently evolved into a very hot issue. In order to support a vertical handoff, we propose a context based vertical handoff decision process and the corresponding algorit...
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the proceedings contain 23 papers. the special focus in this conference is on Interoperability architectures, Methodological aspects, Service discovery, Configurable communication, Interoperability architectures II an...
ISBN:
(纸本)9783540262626
the proceedings contain 23 papers. the special focus in this conference is on Interoperability architectures, Methodological aspects, Service discovery, Configurable communication, Interoperability architectures II and Performance and optimization. the topics include: Towards real-time middleware for applications of vehicular ad hoc networks;adaptive context management using a component-based approach;customised billing for location-based services;loosely-coupled integration of CSCW systems;interoperability and eservices;model-driven self-management of legacy applications;model-driven methodology for building qos-optimised web service compositions;how to implement software connectors? a reusable, abstract, adaptable connector;designing self-adaptive multimedia applications through hierarchical reconfiguration;transformation composition modelling framework;proximity-based service discovery in mobile Ad Hoc networks;enriching UDDI information model with an integrated service profile;building a configurable publish/subscribe notification service;protocol reconfiguration using component-based design;a secure and efficient communication resume protocol for secure wireless networks;an architecture for collaborative scenarios applying a ommon BPMN-repository;a flexible and modular framework for implementing infrastructures for global computing;an architecture for implementing application interoperation with heterogeneous systems;optimizing the access to read-only data in grid computing and using data item relationships to adaptively select data for synchronization;a client/intercept based system for optimizing wireless access to web services.
the new embedded algorithm for wavelet image compression is proposed. the main idea of the algorithm is to use high-order statistical contextmodeling for significant coefficients prediction by scanning order adaptati...
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the new embedded algorithm for wavelet image compression is proposed. the main idea of the algorithm is to use high-order statistical contextmodeling for significant coefficients prediction by scanning order adaptation of wavelet difference reduction (WDR). the new predefined scanning order, header, preprocessing of all-lowpass coefficients are used together withthe scanning order adaptation to improve the rate-distortion performance of the image coder, while retain the important features of the state of the art image coder from original WDR, such as embedded/progressive coding, region of interest support, and support operation on compressed data. the high-order context model used can be fixed or adaptive model. Although at the very beginning state, this technique, using simple fixed model, in PSNR sense, considerably surpasses set partitioning in hierarchical trees (SPIHT) in no arithmetic coding mode for all test images at all bit rates, and also outperforms JPEG2000 in high compression ratio (very low to low bit rate) for many images in the test set
Believable agents are required to express human-like characteristics. While most recent research focus on graphics and plan execution, few concentrate on the issue of flexible interactions by reasoning about social re...
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Proper language for formal definition of L-systems is crucial to easy creation, modification and comparison between plant models. this paper introduces special purpose language, which allows effortless description of ...
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Proper language for formal definition of L-systems is crucial to easy creation, modification and comparison between plant models. this paper introduces special purpose language, which allows effortless description of D0L-systems (simplest class of L-systems) and their extensions (e.g. context-sensitive, parametric productions with probability). the proposed language enables as well specification of high-level model parameters.
Implied volatility is one of the key issues in modern quantitative finance, since plain vanilla option prices contain vital information for pricing and hedging of exotic and illiquid options. European plain vanilla op...
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Implied volatility is one of the key issues in modern quantitative finance, since plain vanilla option prices contain vital information for pricing and hedging of exotic and illiquid options. European plain vanilla options are nowadays widely traded, which results in a great amount of high-dimensional data especially on an intra day level. the data reveal a degenerated string structure. Dynamic semiparametric factor models (DSFM) are tailored to handle complex, degenerated data and yield low dimensional representations of the implied volatility surface (IVS). We discuss estimation issues of the model and apply it to DAX option prices.
We present an intelligent information retrieval model based on multi-agent paradigm and conceptual graphs. the growing amount of on-line information and its dynamic nature forces us to reconsider existing passive appr...
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We present an intelligent information retrieval model based on multi-agent paradigm and conceptual graphs. the growing amount of on-line information and its dynamic nature forces us to reconsider existing passive approaches for information retrieval. Because of this ever-growing size of information sources the burden of retrieving information can not be simply left on users. We attempt to handle this problem through software agents. Our model makes use of a user modeling agent (UMA), a facilitator and integrator (FACINT) module and a number of retrieval agents. UMA is responsible for creating a user profile. Actual retrieval is done by retrieval agents. FACINT is responsible for controlling and coordinating activities of various agents. It also does final ranking of the documents based on conceptual graph (CG) representation of documents. the use of CG brings semantics in making relevance judgment resulting in improved ranking. the model proposed by us is simple, efficient, scalable and can work actively as well as passively.
this paper discusses the dynamic of contextthrough the use of a context-based formalism called contextual graphs that has been initially developed in the SART application for the development of a support system in in...
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ISBN:
(纸本)3540403809
this paper discusses the dynamic of contextthrough the use of a context-based formalism called contextual graphs that has been initially developed in the SART application for the development of a support system in incident solving on a subway line. First, we present the formalism of contextual graphs through its new implementation. Second, we discuss the dynamic of context in contextual graphs. third, we present two characteristics of contextual graphs as they relate to the dynamic of context, the incremental knowledge acquisition and the explanation generation. We conclude by a discussion of the key properties and the potential of contextual graphs for other applications.
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