14th IEEE International Conference on Tools with Artificial Intelligence, 2002. (ICTAI 2002). Proceedings.

4-6 Nov. 2002

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  • Proceedings 14th IEEE International Conference on Tools with Artificial Intelligence

    Publication Year: 2002
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    Freely Available from IEEE
  • Error-based pruning of decision trees grown on very large data sets can work!

    Publication Year: 2002, Page(s):233 - 238
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (254 KB) | HTML iconHTML

    It has been asserted that, using traditional pruning methods, growing decision trees with increasingly larger amounts of training data will result in larger tree sizes even when accuracy does not increase. With regard to error-based pruning, the experimental data used to illustrate this assertion have apparently been obtained using the default setting for pruning strength; in particular, using the... View full abstract»

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  • Author index

    Publication Year: 2002, Page(s):547 - 548
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    Freely Available from IEEE
  • Actions with duration and constraints: the ramification problem in temporal databases

    Publication Year: 2002, Page(s):83 - 90
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (295 KB) | HTML iconHTML

    The ramification problem is a hard and ever present problem in systems exhibiting dynamic behavior. The area of temporal databases in particular still lacks satisfactory solutions to the ramification problem. In this paper we address the ramification problem based on causal relationships that take time into account. We study the problem for both instantaneous actions and actions with duration. The... View full abstract»

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  • Function approximation using robust wavelet neural networks

    Publication Year: 2002, Page(s):483 - 488
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB) | HTML iconHTML

    Wavelet neural networks (WNN) have recently attracted great interest, because of their advantages over radial basis function networks (RBFN) as they are universal approximators but achieve faster convergence and are capable of dealing with the so-called "curse of dimensionality". In addition, WNN are generalized RBFN. However, the generalization performance of WNN trained by least-squares approach... View full abstract»

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  • On temporal planning as CSP

    Publication Year: 2002, Page(s):75 - 82
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (274 KB) | HTML iconHTML

    Recent advances in constraint satisfaction and heuristic search have made it possible to solve classical planning problems significantly faster. There is an increasing amount of work on extending these advances to solving more expressive planning problems which contain metric time, quantifiers and resource quantities. One can broadly classify classical planners into two categories: (i) planners do... View full abstract»

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  • Study for fusion of different sources to determine relevance

    Publication Year: 2002, Page(s):515 - 520
    Cited by:  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB) | HTML iconHTML

    The relevance of a Web document could be measured not only by its text content, but also by some other factors such as the link connectivity and usage patterns. In previous data fusion researches, the text is the only source to determine the relevance, and only the different runs (e.g. by different retrieval models, different query or document representations) on this same source are combined. It ... View full abstract»

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  • Hiding a logo watermark into the multiwavelet domain using neural networks

    Publication Year: 2002, Page(s):477 - 482
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (342 KB) | HTML iconHTML

    This paper proposes a novel watermarking scheme for an image, in which a logo watermark is embedded into the multiwavelet domain of the image using neural networks. The multiwavelet domain provides us with a multiresolution representation of the image like the scalar wavelet case. However, there are four subblocks in the coarsest level of the multiwavelet domain, where there is only one in that of... View full abstract»

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  • Calculus of variations in discrete space for constrained nonlinear dynamic optimization

    Publication Year: 2002, Page(s):67 - 74
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (325 KB) | HTML iconHTML

    We propose new dominance relations that can speed up significantly the solution process of nonlinear constrained dynamic optimization problems in discrete time and space. We first show that path dominance in dynamic programming cannot be applied when there are general constraints that span across multiple stages, and that node dominance, in the form of Euler-Lagrange conditions developed in optima... View full abstract»

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  • NeuroWeb: an Internet-based neural network simulator

    Publication Year: 2002, Page(s):407 - 412
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB) | HTML iconHTML

    The NeuroWeb project is an Internet-based framework for the simulation of neural networks. It aims for using the Internet as a transparent environment to allow users the exchange of information (neural network objects, neural network paradigms) and the exploit of available computing resources for neural network specific tasks (specifically training of neural networks). NeuroWeb's design principles... View full abstract»

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  • The semantics of proactive communication acts among team-based agents

    Publication Year: 2002, Page(s):447 - 454
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (294 KB) | HTML iconHTML

    Psychological studies about human teamwork have shown that members of an effective team can often anticipate needs of other teammates, and choose to assist teammates through appropriate ways. However the fulfillment of help behaviors among teammates is subject to team members' understanding of the underpinning communicative acts performed by individual agents. By extending the mental state analysi... View full abstract»

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  • A neural network-based segmentation tool for color images

    Publication Year: 2002, Page(s):500 - 511
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1273 KB) | HTML iconHTML

    The paper focuses on the development of an efficient and accurate tool for segmenting color images. The segmentation is a problem that has been widely studied since machine vision first evolved as a research area. The neural network segmentation tools and technology developed and presented in this paper show great potential in application where the accuracy is the major factor. Similar requirement... View full abstract»

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  • Reinforcement learning in multiagent systems: a modular fuzzy approach with internal model capabilities

    Publication Year: 2002, Page(s):469 - 474
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1468 KB) | HTML iconHTML

    Most of the methods proposed to improve the learning ability in multiagent systems are not appropriate to more complex multiagent learning problems because the state space of each learning agent grows exponentially in terms of the number of partners present in the environment. We propose a novel and robust multiagent architecture to handle these problems. The architecture is based on a learning fu... View full abstract»

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  • Detecting similarities and differences in images using the PFF and LGG approaches

    Publication Year: 2002, Page(s):355 - 362
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (779 KB) | HTML iconHTML

    This paper presents two methods for comparison of images and evaluation of visibility of artifacts due to hidden information, changes or noise. The first method is based on pixel flow functions (PFF) able to detect changes in images by projecting the pixel values vertically, horizontally and diagonally. These projections create "functions" related with the average values of pixels summarized horiz... View full abstract»

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  • A tool for extracting XML association rules

    Publication Year: 2002, Page(s):57 - 64
    Cited by:  Papers (3)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (886 KB) | HTML iconHTML

    The recent success of XML as a standard to represent semi-structured data, and the increasing amount of available XML data pose new challenges to the data mining community. In this paper we present the XMINE operator, a tool developed to extract XML association rules for XML documents. The operator, based on XPath and inspired by the syntax of XQuery, allows us to express complex mining tasks, com... View full abstract»

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  • Automatic repairing of Web wrappers by combining redundant views

    Publication Year: 2002, Page(s):399 - 406
    Cited by:  Papers (2)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (263 KB) | HTML iconHTML

    We address the problem of automatic maintenance of Web wrappers used in data integration systems to encapsulate an access to Web information providers. The maintenance of Web wrappers is critical as providers often changes the page format and/or structure making wrappers inoperable. The solution we propose extends the conventional wrapper architecture with a novel component of automatic maintenanc... View full abstract»

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  • Local search algorithm to improve the local search

    Publication Year: 2002, Page(s):438 - 443
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (785 KB) | HTML iconHTML

    In this paper, we present a new cooperative framework based on using successively two local search algorithms to solve constraint satisfaction and optimization problems. Our technique is based on the integration of local search algorithms as a mechanism to diversify the search instead of using a build on diversification mechanisms. Thus we avoid tuning the multiple parameters to escape from a loca... View full abstract»

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  • Maintenance scheduling of oil storage tanks using tabu-based genetic algorithm

    Publication Year: 2002, Page(s):209 - 215
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (358 KB) | HTML iconHTML

    Due to the entry of Taiwan into WTO and the recently liberalized Petroleum Management Law, the oil market in Taiwan is liberalized and thus is becoming more competitive. However, the space limitation and the residents' increasing awareness of environmental protection issues in the island make international vendors unavoidably have to rent tanks from domestic oil companies. In order to help the lea... View full abstract»

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  • Application of AI planning techniques to automated code synthesis and testing

    Publication Year: 2002, Page(s):131 - 137
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (269 KB) | HTML iconHTML

    Rapid growth in the demand for embedded systems and the increased complexity of embedded software pose an urgent need for advanced embedded software development techniques. One attractive approach is to enable semi-automated code generation and integration of systems from components. However, the implementation and validation of these systems requires a steep learning curve due to the large number... View full abstract»

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  • Selection process of intelligent decision support tool for real-time monitoring system

    Publication Year: 2002, Page(s):173 - 180
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB) | HTML iconHTML

    The decision support tool market has seen exponential growth in recent years, with the introduction of different tools for various applications and domains. These include tools for data mining, on-line analysis and reporting, and expert systems (rule-based and case-based systems). This paper presents an approach for evaluating and selecting intelligent decision supports tools suitable for capturin... View full abstract»

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  • Reasoning on aspectual-temporal information in French within conceptual graphs

    Publication Year: 2002, Page(s):315 - 322
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (279 KB) | HTML iconHTML

    This paper presents a modeling of time, aspect and verbal meanings in natural language processing within Simple Conceptual Graphs (SCG) by way of Semantico-Cognitive Schemes (SCS) and the aspectual-temporal theory. Our system translates a semantico-cognitive representation in terms of SCGs. The SCS allows us to build a representation of a text taking into account fine subtleties of natural languag... View full abstract»

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  • Context query in information retrieval

    Publication Year: 2002, Page(s):101 - 106
    Cited by:  Patents (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (242 KB) | HTML iconHTML

    There is an important query requirement missing for search engines. With the wide variation of domain knowledge and user interest, a user would like to retrieve documents in which one query term is discussed in the context of another. Based on existing query mechanisms, what can be specified at most is the co-occurrence of multiple terms in a query. This is insufficient because the co-occurrence o... View full abstract»

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  • A trace-scaling agent for parallel application tracing

    Publication Year: 2002, Page(s):494 - 499
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1455 KB) | HTML iconHTML

    Tracing and performance analysis tools are an important component in the development of high performance applications. Tracing parallel programs with current tracing tools, however, easily leads to large trace files with hundreds of Megabytes. The storage, visualization, and analysis of such trace files is often difficult. We propose a trace-scaling agent for tracing parallel applications, which l... View full abstract»

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  • EER-CONCEPTOOL: a "reasonable" environment for schema and ontology sharing

    Publication Year: 2002, Page(s):527 - 534
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (382 KB) | HTML iconHTML

    We propose a system which supports knowledge sharing through the articulation of the overlapping components in two or more schemas or ontologies. EER-CONCEPTOOL uses description logics (DLs) to formalise and capture some of the relevant features of knowledge described using an enhanced entity-relationship (EER) model. We describe how DL-based reasoning can provide a relevant part of the semi-autom... View full abstract»

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  • Cooperative co-learning: a model-based approach for solving multi-agent reinforcement problems

    Publication Year: 2002, Page(s):463 - 468
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (271 KB) | HTML iconHTML

    Solving multiagent reinforcement learning problems is a key issue. Indeed, the complexity of deriving multiagent plans, especially when one uses an explicit model of the problem, is dramatically increasing with the number of agents. This papers introduces a general iterative heuristic: at each step one chooses a sub-group of agents and update their policies to optimize the task given the rest of a... View full abstract»

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