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2006年国际电子、工程及科学领域的分布式计算和应用学术研讨会

作者： Noraziah Ahmad Mustafa Mat Deris Norhayati Rosli Yazid Mohd Saman Rabiei Mamat W.N.Wan Nik Shuhadah Faculty of Comp.System & Software Engineering University College of Engineering & Technology Malaysia Mustafa Mat Deris Faculty of Information & Technology Multimedia University College of Technology Tun Hussein Onn Group Faculty Chemical Engineering & Natural Resources University College of Engineering & Technology Malaysia Faculty of Science and Technology University College of Science & Technology Malaysia

This paper presents a new design to manage neighbor replication for distributed database *** address how to build reliable system for managing transaction on Neighbor Replication Grid(NRG) in terms to preserve the data consistency and support advance *** first recall the model and technique of NRG that impose neighbors binary vote assignment to its logical grid structure on data *** on this model,we extent our work to design system for managing NRG transaction both in normal and failure *** present a result of correctness study on the system and finally an implementation of the system.

关键词： Distributed Database Replication Consistency Transaction Model Transaction Processing and Correctness

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Automatic Transformation of Electronic Documents into Reusable Learning Objects: New Approach Based on Artificial Neural Networks

Automatic Transformation of Electronic Documents into Reusab...

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International Conference on information and Communication Technologies: From Theory to Applications, ICTTA

作者： K. Ajami S. Elias V. Aarar M. Osman W. Hejazi H. Khayyat Computer Science Department Higher Institute of Applied Science and Technology (HIAST) Damascus Syria Faculty of Information Technology Software Engineering Department University of Damascus Damascus Syria

The aim of this paper is to introduce a new approach which describes an automatic transformation process of electronic flat documents (HTML document for example), into reusable learning objects. Thus, the transformed content can be integrated, within management learning system. Our methodology proposes, firstly, a syntactical transformation of a flat electronic document into well-structured document. It tends secondly, to perform a semantic categorization of each piece of the content into an equivalent type of reusable learning object (Ajami, 2004). Such a semantic categorization is based on the construction of artificial neural networks

关键词： Artificial neural networks HTML Content management Neural networks Learning systems Computer science software engineering XML Humans Standardization

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software Agent Negotiation Development: An Experience Report

Software Agent Negotiation Development: An Experience Report

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International Conference on Intelligent Systems Design and Applications (ISDA)

作者： Cheah Wai Shiang Narayanan Kulathuramaiyer Seng Wai Loke Faculty of Computer Science and Information Technology Universiti Malaysia Sarawak Malaysia School of Computer Science and Software Engineering La Trobe University Australia Australia

Negotiation involves the execution of rules and interaction among the agents toward the agreement, objective or outcomes. It is a complex process and need careful study and design. This paper focuses on experience sharing under the development of negotiation approach in a booking application (e.g. Smart Lecture Theatre). It consists of the conceptual ideal of negotiation as well as the methodology for life cycle development. The development life cycle has been structured into five phases: location determination, interaction protocol design, autonomy determination, agent binding and agent implementation. A simple negotiation application has been experimented for a simple argumentation negotiation application and an intelligent-based argumentation negotiation application. This paper has demonstrates the importance and capability of this methodology in structuring agent negotiation

关键词： software agents Protocols Intelligent agent Computer science information technology software engineering Application software Decision making Scheduling Quality management

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Multi-institutional teaching communities in computer education 06

Multi-institutional teaching communities in computer educati...

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ACM SIGCSE-SIGCUE Technical Symposium on Computer Science and Education

作者： Sally Fincher Raymond Lister Arnold Pears Judy Sheard Josh Tenenberg Alison Young Computing Laboratory University of Kent United Kingdom Faculty of Information Technology University of Technology Sydney Australia Dept of Information Technology Uppsala University Sweden School of Computer Science and Software Engineering Monash University Australia Computing and Software Systems Institute of Technology University of Washington United States of America Computing and Information Technology Unitec Auckland New Zealand

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What types of events provide the strongest evidence that the stock market is affected by company specific news?

Conferences in Research and Practice in Information Technolo...

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Conferences in Research and Practice in information technology Series 2006年 61卷 145-153页

作者： Robertson, Calum Geva, Shlomo Wolff, Rodney School of Software Engineering and Data Communications Faculty of Information Technology Queensland University of Technology Level 7 S Block 2 George Street Brisbane QLD 4000 Australia School of Economics and Finance Faculty of Business Queensland University of Technology Brisbane QLD 4000 Australia

The efficient market hypothesis states that an efficient market immediately incorporates all available information into the price of the traded entity. It is well established that the stock market is not an efficient market as it consists of numerous traders with differing strategies and interpretations of information. However there is substantial evidence to suggest that the stock market does incorporate new information into prices. Unfortunately little research has focussed on the high frequency effect of real time news, across a broad base of assets. This paper investigates how the US, UK, and Australian markets incorporate all real time news, not just Press Announcements, Annual Reports, etc. We find that there is strong evidence to suggest that the markets do incorporate news quickly.

关键词： Financial markets

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Modeling Cognitive Structure of Emotion for Developing a Pedagogical Agent Based Interactive Game

Modeling Cognitive Structure of Emotion for Developing a Ped...

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IEEE International Conference on Systems, Man and Cybernetics

作者： P. Ravindra De Silva Chandrajith Ashuboda Marasinghe Ajith P. Madurapperuma Stephen G. Lambacher Minetada Osano Software Engineering Laboratory University of Aizu Aizu-Wakamatsu Japan Faculty of Information Technology University of Moratuwa Colombo Sri Lanka Center for Language Research Aizu-Wakamatsu Japan

The paradigm of animated pedagogical agent has been developed in recent years. These lifelike autonomous characters inhabit leaning environments and make rich, face-to-face learning interactions possible. Children seem to develop an immediate and deep affinity to such characters: the agents abilities open up new possibilities, e.g. agents can demonstrate complex tasks, employ locomotion and gestures, focus children's attention on the most important aspects of a task at hand, and convey emotional responses to the game. This create a comfortable environment with the ability to both engage and motivate children. The pedagogical agent uses emotion, intensity of emotion, and game states in order to create rules for adapting the system according to child behavior. Results showed that an affective gesture recognition model was able to recognize a child's emotion with a considerably high rate of over 82.5%, and the social agent (estimate intensity of emotion) had a strong relationship with observers' feedback, except in low intensity levels.

关键词： Humans Adaptation model Computer errors Animation Emotion recognition Feedback Electronic learning Context modeling Biosensors Cybernetics

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Educational Virtual Instrumentation Application for System Identification

Educational Virtual Instrumentation Application for System I...

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IEEE Instrumentation and Measurement technology Conference

作者： Mircea Popa Raul Ionel Voicu Groza Marius Marcu Computer and Software Engineering Department Faculty of Automation and Computers University E2809CPolitehnicaE2809DTimisoara Romania Measurement and Optical Electronics Department Faculty of Electronics and Telecommunication Engineering UniversityE2809CPolitehnicaE2809DTimisoara Romania School of Information Technology and Engineering University of Ottawa Ottawa Canada

The PC based virtual instrumentation is a dynamic and attractive alternative to the classic instrumentation. Its main advantages are: flexibility and adaptability, low cost, wide development of extension PC boards with measurements features, attractive representation of measurement results, in different forms, on the PC's monitor. The paper presents a system identification application with PC based (virtual) instrumentation. The virtual system is made of an external board, connected to the PC via the USB interface and a software tool, Agilent VEE (Visual engineering Environment). The presented virtual system can work as a voltmeter, ammeter, signal generator, digital oscilloscope and power supply. The main contribution of the paper is the extension of the application domain of the virtual instrumentation system to system identification. The identification method consists of applying to the system input a binary pseudorandom signal (BPRS) and determining the impulse response of the system as being well approximated by the cross-correlation function between the input signal and the answer of the system. The application is intended for educational purposes but can be used in other areas too

关键词： Instruments System identification Application software Signal processing Costs Universal Serial Bus software tools Power engineering and energy Voltmeters Ammeters

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Cross-Language Similarity between Perceptual and Semantic Structures of Color Tones

Cross-Language Similarity between Perceptual and Semantic St...

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IEEE International Conference on Systems, Man and Cybernetics

作者： Charith N.W. Giragama Chandrajith A. Marasinghe Ajith P. Madurapperuma Dishna R. Wanasinghe Susantha Herath Osano Minetada Valista International Lanka (Private) Limited Sri Lanka Department of Software Engineering University of Aizu Japan Faculty of Information Technology University of Moratuwa Sri Lanka Saint Cloud State University Saint Cloud MN USA

The paper describes a study of how Japanese and Sinhala naive viewers use modifiers to describe differences in color tones. Three sequences of color tone stimuli were created for three hues, red, green and blue by varying just two parameters, saturation and value. Two methods were employed to study how naive viewers use modifiers to describe differences in their perceptions and modifiers of color tones. A preliminary elicitation employed the methods of selection description, in which Japanese and Sinhala modifiers meaning - pale, bright, vivid, strong, dull, dark - constituted a high proportion of responses. These modifiers were employed in a triadic comparison. Dissimilarities of all pair wise comparisons of stimuli were submitted to MDS analysis in order to derive a multidimensional perceptual structure for the stimuli. A semantic differential structure was derived applying PCA for modifier responses provided for the same set of stimuli. The results revealed that Japanese and Sinhala native speakers perceptually discriminate the six color tone stimulus into six categories. Furthermore, the semantic structures for each hue were different from one a another. And it was observed that the semantic structures related differently to the dimensions of the perceptual structures.

关键词： information retrieval Humans Multidimensional systems software engineering information analysis Computational modeling Cybernetics Principal component analysis Image color analysis Internet

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Boundary Color Tones between Color Modifiers in Two Languages

Boundary Color Tones between Color Modifiers in Two Language...

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IEEE International Conference on Systems, Man and Cybernetics

作者： Dishna R. Wanasinghe Chandrajith A. Marasinghe Ajith P. Madurapperuma Charith N.W. Giragama Susantha Herath Osano Minetada Department of Software Engineering University of Aizu Japan Faculty of Information Technology University of Moratuwa Sri Lanka Valista International Lanka (Private) Limited Sri Lanka Saint Cloud State University Saint Cloud MN USA

This paper suggests a further improvement to ISCC-NBS naming system for determining exact boundary color tone between color modifiers that associated each region on the Munsell color space. Three sequences of color tone stimuli were created for three fundamental hues red, green and blue by varying just two parameters, saturation and value. Two experiments were executed to investigate the consensual use of modifiers in describing perceptual variations of color tones by Japanese and Sinhala (Language of Sri Lanka) naive viewers. One was a triadic comparison method in which the color modifiers meaning - pale, bright, vivid, strong, dull, and dark - were employed. Results revealed that these modifiers were used in a consistent manner for all three hues. Second was a two-alternative forced-choice experiments that was executed to determined the boundary color tone at which modifier labels switch from bright to strong, and from vivid to dull.

关键词： Humans software engineering Natural languages Switches Clouds Psychology Cybernetics Computer interfaces Context modeling information technology

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Evaluation of handoff algorithms using a call quality measure with signal based penalties

Evaluation of handoff algorithms using a call quality measur...

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IEEE Conference on Wireless Communications and Networking

作者： M.N. Halgamuge K. Ramamohanarao H.L. Vu M. Zukerman Department of Electrical and Electronic Engineering Australia Department of Computer Science and Software Engineering RC Special Research Centre for Ultra-Broadband Information Networks University of Melbourne VIC Australia Centre for Advanced Internet Architectures Faculty of I.C.T Swinburne University of Technology VIC Australia

This paper proposes a new call quality measure based on mobile signal strength measurements to evaluate performance of handoff algorithms in wireless cellular networks. The proposed measure allows the quantification of the impact of the handoff algorithms of performance. Using the proposed measure we compare existing handoff algorithms to identify the trade-off between signal quality and required number of handoffs. Our results indicate that a handoff method based on a threshold with 2 dB hysteresis provides better performance compared to the conventional wisdom of 3 dB hysteresis. We provide a benchmark value for handoff algorithms based on an off-line heuristic method using the new measure. Our benchmark shows that there is substantial room for improvement of the existing handoff algorithm

关键词： Hysteresis Base stations GSM Electric variables measurement software measurement Computer science software engineering IP networks Computer architecture Land mobile radio cellular systems

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