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Proceedings of the 23rd International Conference on Information Technology Interfaces, 2001. ITI 2001.

19-22 June 2001

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Displaying Results 1 - 25 of 75
  • The use of streaming audio in VRML environments

    Publication Year: 2001, Page(s):167 - 172 vol.1
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (660 KB) | HTML iconHTML

    VRML is one of the most popular languages for building virtual worlds, but it lacks support for the reception of streaming data. In our work this functionality was added by embedding a small Java application into the virtual environment. The application controls the transmission of streaming content (audio or video) from the content provider into the virtual world, real-time communication between ... View full abstract»

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  • Modeling the dynamic behavior of an ILP processor

    Publication Year: 2001, Page(s):69 - 74 vol.1
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (440 KB) | HTML iconHTML

    We introduce a new approach to evaluate the effects of branch and value prediction. So far, all the papers published in this area used trace-driven or execution-driven simulation in order to obtain an estimation of the potential to use these techniques. We introduce an analytical model based on fluid stochastic Petri nets (FSPNs). This model is used to capture the dynamic behavior of an ILP proces... View full abstract»

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  • Aspects of hierarchical regression modeling in health services and outcomes research

    Publication Year: 2001, Page(s):25 - 28 vol.1
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (240 KB) | HTML iconHTML

    From a statistical perspective, the goals of the analyses of health care data require the estimation of: covariate effects; cluster-specific measures of utilization, costs, outcomes; and systematic and random components of variation. These estimates need to account for within cluster correlations and to accommodate substantial variations in cluster size. The growing literature on hierarchical regr... View full abstract»

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  • Representing time-dependent information in Multidimensional XML

    Publication Year: 2001, Page(s):111 - 116 vol.1
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (392 KB) | HTML iconHTML

    Multidimensional XML (MXML) is an extension of XML that incorporates dimensions in order to represent in an elegant and concise way context-dependent data, that is, data which can exhibit different variations in value or structure (e.g. that can exist in different languages or various degrees of detail). We show that MXML dimensions can be used to express time and associate it with XML elements an... View full abstract»

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  • Building the knowledge economy

    Publication Year: 2001, Page(s):159 - 166 vol.1
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (644 KB) | HTML iconHTML

    Generation and exploitation of knowledge became one of the most significant components in the new economy. The paper first investigates the influence of information and communications technology on the economy, with specific emphasis on Internet economy and electronic commerce. The paper then describes characteristics of the knowledge economy, discusses knowledge, presents main issues relevant for... View full abstract»

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  • Applying survival analysis for estimating and comparing flushing time variability

    Publication Year: 2001, Page(s):273 - 278 vol.1
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (400 KB) | HTML iconHTML

    Survival analysis is class of statistical methods for studying the occurrence and timing of many different kinds of events. In this research we applied survival analysis for comparing and estimating flushing times of sixteen protrenances of Penduculate Oak (euercus Robur L.). Flushing time is a very important feature of the physiological character and it is known that later flushing Oak has some g... View full abstract»

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  • Cooling cast sensitivity field including thermal resistance on the cast-mould boundary

    Publication Year: 2001, Page(s):A9 - 10 vol. 2
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (92 KB) | HTML iconHTML

    In cast-moulding, the study of sensitivity to the change of a chosen projecting parameter allows the constructor to draw up the optimum project. In this paper, an algorithm for studying sensitivity, considering the thermal diffusivity coefficient of the moulding mass is described, We consider an area Ω consisting of two sub-areas Ω1 and Ω2. We assume that th... View full abstract»

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  • Minimum variance unbiased estimation based on bootstrap iterations

    Publication Year: 2001, Page(s):237 - 242 vol.1
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (336 KB) | HTML iconHTML

    Practical computation of the minimum variance unbiased estimator (MVUE) is often a difficult, if not impossible, task, even though general statistical theory assures its existence under regularity conditions. We propose a new approach, based on infinitely many iterations of bootstrap bias correction, to calculating the MVUE approximately. A numerical example is given to illustrate the effectivenes... View full abstract»

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  • A software infrastructure for distributed computing based on DCOM

    Publication Year: 2001, Page(s):63 - 68 vol.1
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (440 KB) | HTML iconHTML

    To simplify the usage of a computer network as a virtual parallel machine, as well as to introduce the opportunity of distributed parallel computing to Visual Basic users, a DCOM-based software infrastructure is proposed in this article. This infrastructure is based on a master-slave model. It sends a broadcast call over a subnet as an invitation for cooperation, automatically distributes new prog... View full abstract»

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  • Modelling continuing professional development in an innovative context

    Publication Year: 2001, Page(s):15 - 24 vol.1
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (704 KB) | HTML iconHTML

    Being one step ahead of your competitors with incorporation of new knowledge in the products puts focus on the importance of human resources as a significant resource for industrial development. A major competitive parameter in knowledge society is engineering competence, especially in the industry subject to very fast innovation processes. Continuing professional development of engineering staff ... View full abstract»

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  • Handwritten digit recognition by combining support vector machines using rule-based reasoning

    Publication Year: 2001, Page(s):139 - 144 vol.1
    Cited by:  Papers (8)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (420 KB) | HTML iconHTML

    The idea of combining classifiers in order to compensate their individual weakness and to preserve their individual strength has been widely used in pattern recognition applications. The cooperation of two feature families for handwritten digit recognition using SVM (Support Vector Machine) classifiers is examined. We investigate the advantages and weaknesses of various decision fusion schemes usi... View full abstract»

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  • Short term hourly forecasting of gas consumption using neural networks

    Publication Year: 2001, Page(s):367 - 371 vol.1
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (356 KB) | HTML iconHTML

    This paper presents a neural network based model for forecasting gas consumption for residential and commercial consumers. A feedforward neural network with sigmoid nodes and one hidden layer was trained by backpropagation. The model was validated on real data from a distribution area covering 7% of the total consumption in Croatia, consisting mostly of residential and commercial consumers. View full abstract»

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  • From supervisor to coach

    Publication Year: 2001, Page(s):105 - 110 vol.1
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (456 KB) | HTML iconHTML

    The abolishment of conventional structures and the reduction of control have made it possible for colleagues and teams to be aware of their responsibility independently. Therefore, managers can spend more time supporting the employees. Process teams do not need a boss, but a coach who gives advice, who does not take part in the game but who knows the rules and who is always available. The new mana... View full abstract»

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  • MGP: a distributed, multi-platform, programming environment for real-time applications

    Publication Year: 2001, Page(s):467 - 472 vol.1
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (404 KB) | HTML iconHTML

    The paper deals with protocols and architectures for a multi-platform distribution of real time applications. The main motivation for the work comes from a research project in robotics where different computers run distributed applications within a real time framework with different operating systems. View full abstract»

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  • Modelling effects of micromixing on performance of continuous bioreactors

    Publication Year: 2001, Page(s):339 - 344 vol.1
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (328 KB) | HTML iconHTML

    The effects of micromixing on performance of continuous bioreactors is investigated by determination of upper and lower boundaries of substrate conversion. The bounds are evaluated on the basis of limiting micromixing dynamics, i.e. as completely segregated flow and as maximum mixidness flow. A probability density function of residence time (RTD) is applied, corresponding to a "tank in series" mod... View full abstract»

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  • Stationary Stokes system for quasi-Newtonian fluids

    Publication Year: 2001, Page(s):433 - 438 vol.1
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (224 KB) | HTML iconHTML

    The article studies the purely viscous stationary flow of quasi-Newtonian fluids which share dependent viscosity, obeying the power law and Carreau's law. We prove the existence of the solution using the method of monotonicity. Finally, we study numerical algorithms which are useful for the practical solution of the discretized equation. View full abstract»

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  • Conceptual learning of cardiac anomalies and surgeries

    Publication Year: 2001, Page(s):181 - 186 vol.1
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (456 KB) | HTML iconHTML

    There are numerous facts in our world that must be taught and learned every day. Conceptual learning can promote both processes. However, in spite of the performance of modern technologies, computer aided tools for conceptual learning are still rarely used in everyday practice. The article presents and discusses the animations of cardiac diseases and their surgical treatments. Such animations enab... View full abstract»

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  • Variable selection in discriminant analysis in the presence of outliers

    Publication Year: 2001, Page(s):251 - 256 vol.1
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (468 KB) | HTML iconHTML

    An important problem in discriminant analysis that has received little attention in the literature, is the effect of outliers when variable selection is the first step in the analysis. We consider two methods of dealing with this problem: the classification performance of these methods, and the classification performance if possible outliers are ignored, are compared in a simulation study. In the ... View full abstract»

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  • A software agent system for news information delivery on Internet

    Publication Year: 2001, Page(s):151 - 156 vol.1
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (460 KB) | HTML iconHTML

    A software agent system for automatic information gathering, filtering, classifying and delivering of news information on the Internet is provided. The structure and functions of the system are presented. The algorithms of document pre-processing and representation using vectors, auto-classification, auto-learning of user interest are described. Finally, some experiments on the classification of n... View full abstract»

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  • General object-oriented framework for iterative optimization algorithms

    Publication Year: 2001, Page(s):379 - 384 vol.1
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (424 KB) | HTML iconHTML

    It is usually impossible to exactly solve hard optimization problems. One is thus directed to iterative algorithms. In the implementation of these iterative algorithms, some common characteristics can be observed, which can be generalized in an object-oriented framework. This can significantly reduce the time needed for implementation of an iterative algorithm. This paper presents a class hierarch... View full abstract»

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  • Low cost energy analyser of beings

    Publication Year: 2001, Page(s):267 - 272 vol.1
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (452 KB) | HTML iconHTML

    The paper deals with a multimedia application intended for observing and analysing microfluctuations of light around various objects and, in particular around living beings. The being is shot by a classical analogue SVHS motion camera connected to a TV tuner. Images are then grabbed by the software in regular time intervals. The sequences of images are then processed, and as a result, the microflu... View full abstract»

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  • Design of the neural processor optimized for Xilinx Virtex FPGA devices

    Publication Year: 2001, Page(s):A7 - A8 vol. 2
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (180 KB) | HTML iconHTML

    Focuses on the design of a parallel processor targeted at the rapid execution of neural networks. The basic architecture of the toroidal neural processor (TNP) is based on a toroidal mesh. This architecture was inspired by the need for a low-cost massively parallel processing system that could emulate a large variety of neural models. The TNP consists of two basic elements: a control unit and some... View full abstract»

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  • Price indices in external trade of the Republic of Croatia

    Publication Year: 2001, Page(s):231 - 236 vol.1
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (364 KB) | HTML iconHTML

    The aim of this paper is to emphasise the importance of the calculation of price indices in external trade of the Republic of Croatia. In the Croatian Central Bureau of Statistics these indices are calculated by the "unit value" method, also described in the paper. Unit value indices are used for measuring price changes in the Croatian external trade, for calculating volume indices and terms of tr... View full abstract»

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  • Core searching on rough sets

    Publication Year: 2001, Page(s):217 - 222 vol.1
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (260 KB) | HTML iconHTML

    The main motto of rough sets is: "Let the data speak for themselves!". Rough sets are based on the theory of sets. The main applications of rough set theory are attribute reduction, rule generation and prediction. Many examples of applications of rough sets to process control, economics, medical diagnosis, biochemistry, environmental science, biology, chemistry psychology, conflict analysis and ot... View full abstract»

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  • Ordering actions in sequence diagrams of UML

    Publication Year: 2001, Page(s):3 - 14 vol.1
    Cited by:  Papers (7)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (684 KB) | HTML iconHTML

    The Unified Modeling Language (UML) proposes a set of models but does not have a methodology that clearly fixes both the use of these various models (diagrams) and the semantic links able to exist between them. In particular, the interaction diagrams of UML do not have, according to the current metamodel, an operational semantics defining formally how such a diagram is executed. The objective of t... View full abstract»

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