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International conference on computer and Information Science (ACIS)

作者： O.O. Fadiran P. Molnar L.M. Kaplan Center for the Theoretical Study of Physical Systems and Department of Computer and Information Science Clark Atlanta University Atlanta GA USA U.S. Army Research Laboratory Adelphi MD USA

We propose a novel, progressive, adaptive sampling method, that efficiently varies the sampling rate in local regions of a function based on the distribution of already collected samples. We show that for many functions, increasing the sampling rate in a region of a function with relatively higher complexity is achieved by the equalization of the histogram of the sampled function values. the sampling scheme thus achieves two purposes that are shown to be equivalent; efficiently adapted sampling rates based on local function complexity, and an improvement in diversity in the sampled function values. We achieve the sampling, progressively, through an active walker model. the sample points are placed based on the location of simulated active walkers whose movement is adapted at each stage to achieve the required histogram equalization. the only requirement by this algorithm is the ability to obtain the value of the function at each sample point; no a priori information on the relative levels of local variation of the function being sampled is required. We illustrate this concept with some examples, and discuss practical applications in the two broad areas of adaptive sampling, and improving diversity in samples

关键词： Sampling methods Histograms Adaptive equalizers Information science Military computing Physics computing Laboratories Powders Milling machines software algorithms

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Advanced software engineering, Expanding the Frontiers of software Technology 1

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丛书名： IFIP International Federation for Information Processing 219

2006年

作者： Ochoa, Sergio F. (EDT)/ Roman, Gruia-Catalin (EDT)

ISBN: (数字)9780387348315

ISBN: (纸本)9780387348285

this volume presents proceedings from the 19th IFIP World computer Congress in Santiago, Chile. the proceedings of the World computer Congress are a product of the gathering of 2,000 delegates from more than 70 countries to discuss a myriad of topics in the ICT domain. Of particular note, this marks the first time that a World computer Congress has been held in a Latin American country. Topics in this series include: - the 4th International conference on theoretical computer Science - Education for the 21st Century- Impact of ICT and Digital Resources - Mobile and Wireless Communication Networks - Ad-Hoc Networking - Network Control and engineering for QoS, Security, and Mobility - the Past and Future of Information systems: 1976-2006 and Beyond - History of Computing and Education - Biologically Inspired Cooperative Computing - Artificial Intelligence in theory and Practice - Applications in Artificial Intelligence - Advanced software engineering: Expanding the Frontiers of software

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Decentralized Electronic Mail

Decentralized Electronic Mail

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International conference on Distributed Computing systems Workshop

作者： S. Bercovici I. Keidar A. Tal Department of Computer Science Technion - Israel Institute of Technology Department of Electrical Engineering Technion - Israel Institute of Technology

E-mail is one of the most popular Internet applications. Unfortunately, the server-centric architecture of today’s commercial solutions inherently limits availability, efficiency, and scalability. the single point of failure as well as the increasing processing and storage stress on the server drives the 35 year old architecture to the limits of its abilities. this paper proposes decentralized electronic mail (DEM), a novel e-mail architecture that overcomes existing systems’ shortcomings. Following the mobile-object paradigm, DEM offers a decentralized approach, which breaks the dependency between a mail user and a single service provider, while relying entirely on participants’ resources.

关键词： Electronic mail computer architecture Postal services Application software Scalability Stress Home computing computer science Internet Web server

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Clustering for data matching

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10th International conference on Knowledge-Based Intelligent Information and engineering systems, KES 2006

作者： Apeh, Edward Tersoo Computational Intelligence Research Group Bournemouth University Talbot Campus Fern Barrow Poole BH12 5BB United Kingdom QGate Software Limited D2 Fareham Heights Standard Way Fareham Hampshire PO16 8XT United Kingdom

ISBN: (纸本)3540465359

the problem of matching data has as one of its major bottlenecks the rapid deterioration in performance of time and accuracy, as the amount of data to be processed increases. One reason for this deterioration in performance is the cost incurred by data matching systems when comparing data records to determine their similarity (or dissimilarity). Approaches such as blocking and concatenation of data attributes have been used to minimize the comparison cost. In this paper, we analyse and present Keyword and Digram clustering as alternatives for enhancing the performance of data matching systems. We compare the performance of these clustering techniques in terms of potential savings in performing comparisons and their accuracy in correctly clustering similar data. Our results on a sampled London Stock Exchange listed companies database show that using the clustering techniques can lead to improved accuracy as well as time savings in data matching systems. © Springer-Verlag Berlin Heidelberg 2006.

关键词： Data reduction

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MAPO: Mining API usages from open source repositories

MAPO: Mining API usages from open source repositories

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2006 International Workshop on Mining software Repositories, MSR '06, Co-located with the 28th International conference on software engineering, ICSE 2006

作者： Xie, Tao Pei, Jian Department of Computer Science North Carolina State University Raleigh NC 27695 United States School of Computing Science Simon Fraser University Burnaby BC V5A 1S6 Canada

ISBN: (纸本)1595933972

To improve software productivity, when constructing new software systems, developers often reuse existing class libraries or frameworks by invoking their APIs. those APIs, however, are often complex and not well documented, posing barriers for developers to use them in new client code. To get familiar with how those APIs are used, developers may search the Web using a general search engine to find relevant documents or code examples. Developers can also use a source code search engine to search open source repositories for source files that use the same APIs. Nevertheless, the number of returned source files is often large. It is difficult for developers to learn API usages from a large number of returned results. In order to help developers understand API usages and write API client code more effectively, we have developed an API usage mining framework and its supporting tool called MAPO (for Mining API usages from Open source repositories). Given a query that describes a method, class, or package for an API, MAPO leverages the existing source code search engines to gather relevant source files and conducts data mining. the mining leads to a short list of frequent API usages for developers to inspect. MAPO currently consists of five components: a code search engine, a source code analyzer, a sequence preprocessor, a frequent sequence miner, and a frequent sequence post processor. We have examined the effectiveness of MAPO using a set of various queries. the preliminary results show that the framework is practical for providing informative and succinct API usage patterns. Copyright 2006 ACM.

关键词： Data mining

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Data Mining for Lifetime Prediction of Metallic Components

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 75-81页

作者： Ge, Esther Nayak, Richi Xu, Yue Li, Yuefeng School of Information Systems Queensland University of Technology GPO Box 2434 Brisbane QLD 4001 Australia School of Software Engineering and Data Communications Queensland University of Technology GPO Box 2434 Brisbane QLD 4001 Australia

the ability to accurately predict the lifetime of building components is crucial to optimizing building design, material selection and scheduling of required maintenance. this paper discusses a number of possible data mining methods that can be applied to do the lifetime prediction of metallic components and how different sources of service life information could be integrated to form the basis of the lifetime prediction model. © 2006, Australian computer Society, Inc.

关键词： Data mining

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Notice of Violation of IEEE Publication Principles: Formalization of Capability for Command-Based Agent

Notice of Violation of IEEE Publication Principles: Formaliz...

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IEEE International conference on Cognitive Informatics

作者： Yibing Song Yongtian Yang Chuangang Zhu Navy Submarine of Academy Qingdao China Computer Science and Technology Department Harbin Engineering of Technology Harbin China

Notice of Violation of IEEE Publication Principles "Formalization of Capability for Command-Based Agent" by Yibing Song, Yongtian Yang, and Chuangang Zhu in the Proceedings of 5th IEEE International conference on Cognitive Informatics (ICCI) 2006. After careful and considered review of the content and authorship of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE's Publication Principles. this paper contains significant portions of original text from the paper cited below. the text was paraphrased, and was not clearly referenced or specifically identified. "Agent Capabilities: Extending BDI theory" by Lin Padgham and Patrick Lambrix in the Proceedings of the Seventeenth National conference on Artificial Intelligence - AAAI 2000, pp 68-73, Austin, Texas, USA, August 2000. Intentional agent systems are increasingly used in a wide range of complex applications. Capability has recently been introduced into some of these systems as a software engineering mechanism to support modularity and reusability while still allowing meta-level reasoning. Depending on circumstances, capability may not always result in an achievable plan for realizing the goal, but it is a prerequisite for such. Based on BDI logic, this paper presents a BGC model, which includes a mental state of command. Under BGC frame, the notion of capability is discussed and formalized, also the axiom system and compatibility of capability is investigated. Furthermore, a style of agent commitment is defined as self-aware agent, which allows an agent to modify its goals and commands as its capabilities change. Practice shows BGC logic and capability theory can solve the dynamic selection between roles and agents, and meet the demands of command-based MAS application on obedience and flexibility properly

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software Requirements Retrieval Using Use Case Terms and Structure Similarity Computation

Software Requirements Retrieval Using Use Case Terms and Str...

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Asia-Pacific conference on software engineering

作者： Akadej Udomchaiporn Nakornthip Prompoon Pizzanu Kanongchaiyos Department of Mathematics and Computer Science Faculty of Science King Mongkut''s Institute of Technology Ladkrabang Thailand Center of Excellent in Software Engineering Department of Computer Engineering Faculty of Engineering Chulalongkom University Thailand

For a large scale of software development, there is a tremendous number of software requirements documents in a collection which may be produced for different domains by different developer teams. they may be later reused to reduce cost and time for the next development. thus, there is a need to retrieve ones that meet user's need efficiently. this paper presents an approach for software requirements specification retrieval in a form of use case description using use case structure and similarity computation between terms of use case query and use cases in the collection. the contribution of the paper has five main points; 1) the approach for retrieving use case description is proposed, 2) the developed tool supporting the approach is presented, 3) the experiment is designed to measure effectiveness of the approach, 4) the results of the experiment are shown to compare effectiveness of the approach to that of a general approach, and finally 5) the recommended use case description query template is proposed.

关键词： Programming Costs Unified modeling language software engineering Production software quality Mathematics computer science Large-scale systems software systems

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A sensory grammar for inferring behaviors in sensor networks

A sensory grammar for inferring behaviors in sensor networks

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International Symposium on Information Processing in Sensor Networks (IPSN)

作者： D. Lymberopoulos A.S. Ogale A. Savvides Y. Aloimonos Department of Electrical Engineering Yale University New Heaven CT USA Department of Computer Science University of Maryland College Park MD USA

the ability of a sensor network to parse out observable activities into a set of distinguishable actions is a powerful feature that can potentially enable many applications of sensor networks to everyday life situations. In this paper we introduce a framework that uses a hierarchy of probabilistic context free grammars (PCFGs) to perform such parsing. the power of the framework comes from the hierarchical organization of grammars that allows the use of simple local sensor measurements for reasoning about more macroscopic behaviors. Our presentation describes how to use a set of phonemes to construct grammars and how to achieve distributed operation using a messaging model. the proposed framework is flexible. It can be mapped to a network hierarchy or can be applied sequentially and across the network to infer behaviors as they unfold in space and time. We demonstrate this functionality by inferring simple motion patterns using a sequence of simple direction vectors obtained from our camera sensor network testbed

关键词： Intelligent networks Intelligent sensors Humans Sensor phenomena and characterization Application software Sensor systems and applications Space technology Permission computer science Educational institutions

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Effects of man-machine interface design of pmls & pocket pc communicative assistive technology research of applying to brain paralysis students

Effects of man-machine interface design of pmls & pocket pc ...

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36th International conference on computers and Industrial engineering, ICC and IE 2006

作者： Wang, Chung-Shing Wang, Chuan-Po Graduate of School Industrial Design Tung-hai University Lane 169 Jhongshan N. Rd. Daya Township Taichung County 428 Taiwan

this research tries to study in fourth year brain paralysis student in Tung-hai university as the research object, adopt the law of case study, and select Pocket PC to be a communicative complement intervention after the case is assessed, whether probing into Pocket PC improving the ability or quality of the case to intervene into communicating effectively. It adopts Pocket PC and PMLS (Picture Master Language software), as intervention in the tool, Pocket PC link up with PMLS the systematic communication is trained and be divided into five methods: (1) Wrong rate: the case interface distinguishes the correct and wrong rate (2)Efficiency: Click and select to communicate average time (3) Learnability: the system should be easy to learn (4) Memorability: System should be easy to memory (5) Satisfaction: the commenting amount of the case operates the precise familiar degree complemented and links up the improvement degree of ability in each training. this result of study is found: After utilizing the interface of the school life terms designed to apply to communicate and complement getting involved in pronunciation, the case operates the pronunciation and communicates and complements the ability to reach the precise familiar degree, and no matter in the interface distinguishes leading correctly, average deadline or studying respect make apparent progress. this research has proposed the concrete suggestion separately in assessing the procedure, intervene into training in complement, man-machine interface and future to study. Finally, we hope communicative research and development have to continuous complement and it is beneficial to engage in relevant researcher.

关键词： Man machine systems

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