Proceedings Sixth International Conference on Tools with Artificial Intelligence. TAI 94

6-9 Nov. 1994

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  • Proceedings Sixth International Conference on Tools with Artificial Intelligence. TAI 94

    Publication Year: 1994
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    Freely Available from IEEE
  • Three-layered fuzzy inference and self-wondering mechanism as natural language processing engine of FLINS

    Publication Year: 1994, Page(s):212 - 218
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (540 KB)

    We are developing a natural language communication system called FLINS, which is short for Fuzzy Lingual System. The final goal of the project is to implement a lingual computer that can communicate and learn, both by being taught and on it own, through use of a fuzzy natural language. New design concepts, text-based architecture and fuzzy-centered architecture, to overcome the problems and limita... View full abstract»

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  • Experiments with various recurrent neural network architectures for handwritten character recognition

    Publication Year: 1994, Page(s):548 - 554
    Cited by:  Papers (2)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (420 KB)

    This paper reports evaluations of several neural architectures when the handwritten character recognition is approached as a problem of spectro-temporal pattern recognition. In general, neural networks specialize in learning either the spectral or temporal characteristics of patterns. However, choice of appropriate features and architectures could lead to obtaining both spectral and temporal chara... View full abstract»

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  • Fuzzy expert system shells

    Publication Year: 1994, Page(s):219 - 225
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (476 KB)

    For developing fuzzy control systems and fuzzy expert systems, we have several shells. We describe two shells for expert systems, FPS (Fuzzy Production System) developed by the authors and FINEST (Fuzzy Inference Environment Software with Tuning) being developed in LIFE (Laboratory for International Fuzzy Engineering Research). FPS facilitates both forward and backward fuzzy reasoning. FINEST is a... View full abstract»

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  • Finite domain constraints in the ML functional language

    Publication Year: 1994, Page(s):784 - 787
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (320 KB)

    We propose an extension of the ML language for handling constraints in finite domains, as originally proposed by the CHIP Constraint Logic Programming Language, following and attending techniques originating from Constraint Satisfaction Problems. This makes it possible for the programmer to declaratively combine in a single application both purely functional parts and constraint solving parts for ... View full abstract»

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  • A constraint-based approach for the generation of floor plans

    Publication Year: 1994, Page(s):555 - 561
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (520 KB)

    We describe a knowledge-based system that generates all possible floor plans satisfying a set of geometric constraints on the rooms (non-overlap, adjacency, minimal/maximal area, minimal/maximal dimension, etc.). Our approach is based on the extension of the constraint techniques; we define in particular a new partial consistency suited to these problems: the semi-geometric arc-consistency. The me... View full abstract»

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  • NAVNEX: an hybrid system which learns navigation situations in real time

    Publication Year: 1994, Page(s):832 - 835
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (344 KB)

    The paper introduces NAVNEX (Navigation and Neural Explorer), a hybrid system, neural and symbolic/procedural, well suited for real time extraction of navigation situations during incremental explorations of unknown environments performed by an autonomous mobile robot. Real time performances are obtained through the parallelization of the activities necessary to extract relevant information: react... View full abstract»

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  • Natural language processing tools and environments: the field in perspective

    Publication Year: 1994
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (76 KB)

    Tools and environments for natural language processing (NLP) originated approximately four decades ago with dictionary-based machine translation systems. When examining the evolution of the field, one observes a transition from these "embryonic" systems of the fifties to the more adaptable, robust, and user-friendly environments of the nineties. Currently, the state-of-the-art in such systems is b... View full abstract»

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  • An intelligent system to facilitate the diagnosis of adverse drug reactions

    Publication Year: 1994, Page(s):661 - 666
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (364 KB)

    In this paper, we describe an intelligent system, combining an expert system and case based reasoning tools, to assist clinicians in the diagnosis of adverse drug reactions (ADRs). The expert system is used in the analysis phase, while case based reasoning is used to compare the proposed case to existing proved ADR cases. The imprecise and uncertain nature of the information associated with ADRs i... View full abstract»

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  • Pattern theoretic knowledge discovery

    Publication Year: 1994, Page(s):788 - 791
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (328 KB)

    Future research directions in knowledge discovery in databases (KDD) include the ability to extract an overlying concept relating useful data. Current limitations involve the search complexity to find that concept and what it means to be “useful.” The pattern theory research crosses over in a natural way to the aforementioned domain. The goal of this paper is threefold. First, we prese... View full abstract»

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  • Response surface methodology for optimal neural network selection

    Publication Year: 1994, Page(s):161 - 167
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (436 KB)

    A multilayer neural network was designed for time series forecasting using response surface methodology (RSM). To optimize the network's parameters (the number of hidden nodes, the initial learning rate and momentum constant) RSM was employed to explore the mean square error response surface. Extensive studies were performed on the effect of the initial values of connection weights on the accuracy... View full abstract»

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  • Neo-fuzzy-neuron based new approach to system modeling, with application to actual system

    Publication Year: 1994, Page(s):564 - 570
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (468 KB)

    This paper introduces a new approach to system modeling by using a neo-fuzzy-neuron. The system of concern is modeled adaptively by simply feeding to the neo-fuzzy-neuron, the basic principle of which was proposed by the authors in 1992, the input and the output data of the objective system. Firstly, the neo-fuzzy-neuron is applied to the restoration of a saturated and/or intermittent speech or ch... View full abstract»

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  • A knowledge representation system for integration of general and case-specific knowledge

    Publication Year: 1994, Page(s):836 - 839
    Cited by:  Papers (3)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (424 KB)

    Combining various knowledge types-and reasoning methods-in knowledge-based systems is a challenge to the knowledge representation task. The paper describes an object-oriented, frame-based knowledge representation system aimed at unifying case-specific and general domain knowledge within a single representation system. It is targeted at the representational needs that have emerged from research in ... View full abstract»

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  • Adaptive robot path planning in changing environments

    Publication Year: 1994, Page(s):71 - 77
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (552 KB)

    Path planning needs to be fast to facilitate real-time robot programming. Unfortunately, current planning techniques are still too slow to be effective, as they often require several minutes, if not hours of computation. To overcome this difficulty, we present an adaptive algorithm that uses past experience to speed up future performance. It is a learning algorithm suitable for incrementally-chang... View full abstract»

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  • A heuristics guided scheduling framework for domains with complex conditions

    Publication Year: 1994, Page(s):752 - 755
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (328 KB)

    In this paper, we describe PLUTO, PLant scheduling expert system bUilding TOol. PLUTO provides the framework to build scheduling systems for daily schedule of the facilities and personnel involved in the manufacturing process. PLUTO is suited for pipe connected plants with strict sanitary conditions, such as plants for medical supplies, chemical or food plants. In these domains, it is difficult to... View full abstract»

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  • Using a double-based genetic algorithm on a population of computer programs

    Publication Year: 1994, Page(s):418 - 424
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (564 KB)

    In this paper, we present a new approach, which improves the performance of a genetic algorithm. Genetic algorithms are iterative search procedures based on natural genetic. We use an original genetic algorithm that manipulates pairs of twins in its population: DGA, double-based genetic algorithm. We show that this approach is relevant for genetic programming, which manipulates populations of tree... View full abstract»

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  • Discrete event simulation using event calculus

    Publication Year: 1994, Page(s):506 - 512
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (516 KB)

    This paper presents the theory and implementation of a logic based discrete event simulation system. The representation language of the simulation is Horn clause logic. The simulation's theory of time is based on event calculus. The scheduling algorithm generates event notices for all activities that can be performed. This logic approach to discrete event simulation facilitates model validation an... View full abstract»

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  • On learning multiple descriptions of a concept

    Publication Year: 1994, Page(s):476 - 483
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (640 KB)

    In sparse data environments, greater classification accuracy can be achieved by learning several concept descriptions of the data and combining their classifications. Stochastic searching can be used to generate many concept descriptions (rule sets) for each class in the data. We use a tractable approximation to the optimal Bayesian method for combining classifications from such descriptions. The ... View full abstract»

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  • A new approach to modularity in rule-based programming

    Publication Year: 1994, Page(s):18 - 25
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (572 KB)

    We describe a purely declarative method for introducing modularity into forward-chaining, rule-based languages and its embodiment in the Venus rule language. The method is enforced by the syntax of the language and includes the ability to parameterize the rule groups. Drawing from two of three Venus applications developed to date, we illustrate how this form of modularity contributes directly to t... View full abstract»

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  • Knowledge acquisition from real-world texts: some lessons learned

    Publication Year: 1994, Page(s):229 - 230
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (136 KB)

    In recent years, natural language processing (NLP) has experienced a dramatic research shift by focusing on the processing of real-world texts, rather than on restricted domains. This shift of focus has been an acid test for the core components of NLP, namely parsing and semantic interpretation. For the last few years, we have been working on knowledge acquisition from texts (F. Gomez, 1985; F. Go... View full abstract»

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  • A neural network architecture for the second level trigger in the H1-experiment at the electron proton collider HERA

    Publication Year: 1994, Page(s):325 - 331
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (600 KB)

    The H1-experiment is a general purpose particle detector at the electron proton collider HERA. The typical collision rate is about 10 Hz, the background rate 100 kHz. The challenge for the experiment is to suppress the high background rate without losing too many physics reactions. This is performed by a multi-level trigger system. We present the concept, the design and the status for the second l... View full abstract»

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  • An experience-based approach to software project management

    Publication Year: 1994, Page(s):624 - 630
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (512 KB)

    The paper describes an experience-based model for software project management. In this approach, the focus is on concrete cases or episodes, rather than on basic principles. Past problem solving experience is recorded as a collection of solution instances indexed using a set of labels. When a new problem is presented, the case-based reasoner searches its case repository and retrieves an old record... View full abstract»

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  • A partial breadth-first execution model for Prolog

    Publication Year: 1994, Page(s):129 - 137
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (712 KB)

    MEM (Multipath Execution Model) is a novel model for the execution of Prolog programs which combines a depth-first and breadth-first exploration of the search tree. The breadth-first search allows more than one path of the SLD-tree to be explored at the same time. In this way, the computational cost of traversing the whole search tree associated to a program can be decreased because the MEM model ... View full abstract»

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  • NSK, an object-oriented simulator kernel for arbitrary feedforward neural networks

    Publication Year: 1994, Page(s):95 - 104
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (756 KB)

    An object-oriented neural network simulator kernel is presented. It as based on a general mathematical model for arbitrary feedforward nets. We propose a C++ implementation of this model which satisfies the following requirements: expandability (allowing an easy implementation of a new neural model), portability and efficiency (the kernel does not increase significantly its computation times for c... View full abstract»

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  • Imprecise probability and expert forecasting

    Publication Year: 1994, Page(s):668 - 671
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (300 KB)

    Evidence is often insufficient to support the assessment of precise probabilities. Shifting to vaguer measures of uncertainty, such as upper and lower probabilities, does not deprive one of the key analytical tools of classical probability. Two approaches to the calculation of upper and lower expected values are described and contrasted in the case of forecasting production costs of an electric ut... View full abstract»

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