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A Statistical Model for Automatic Extraction of Korean Transliterated Foreign Words

International Journal of computer Processing of Languages 2003年第1期16卷 41-62页

作者： JONG-HOON OH KEY-SUN CHOI Computer Science Division Department of EECS Korea Terminology Research Center for Language and Knowledge Engineering (KORTERM) Korea Advanced Institute of Science and Technology (KAIST) 373-1 Kusong-Dong Yusong-Gu Taejon 305-701 Korea

In this paper, we will describe a Korean transliterated foreign word extraction algorithm. In the proposed method, we reformulate the foreign word extraction problem as a syllable-tagging problem such that each syllable is tagged with a foreign syllable tag or a pure Korean syllable tag. Syllable sequences of Korean strings are modelled by Hidden Markov Model whose state represents a character with binary marking to indicate whether the syllable is part of a transliterated foreign word or not. The proposed method extracts a transliterated foreign word with high recall rate and precision rate. Moreover, our method shows good performance even with small-sized training corpora.

关键词： Transliteration Hidden Markov Model Syllable Tagging Korean Transliterated Foreign Word Cross Lingual information Retrieval

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Sketching informal presentations

Sketching informal presentations

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ICMI'03: Fifth International Conference on Multimodal Interfaces

作者： Li, Yang Landay, James A. Guan, Zhiwei Ren, Xiangshi Dai, Guozhong Group for User Interface Research Computer Science Division University of California Berkeley Berkeley CA 94720-1776 United States Intelligence Engineering Lab Institute of Software Chinese Academy of Sciences Beijing 100080 China Department of Information Systems Engineering Kochi University of Technology Tosayamada-cho Kochi 782-8502 Japan National Research Council in Software Engineering Automation Center Naval Postgraduate School Monterey CA 93940 United States

ISBN: (纸本)1581136218

Informal presentations are a lightweight means for fast and convenient communication of ideas. People communicate their ideas to others on paper and whiteboards, which afford fluid sketching of graphs, words and other expressive symbols. Unlike existing authoring tools that are designed for formal presentations, we created SketchPoint to help presenters design informal presentations via freeform sketching. In SketchPoint, presenters can quickly author presentations by sketching slide content, overall hierarchical structures and hyperlinks. To facilitate the transition from idea capture to communication, a note-taking workspace was built for accumulating ideas and sketching presentation outlines. Informal feedback showed that SketchPoint is a promising tool for idea communication. Copyright 2003 ACM.

关键词： information analysis

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Competition between ferromagnetism and antiferromagnetism in FePt

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Physical Review B 2003年第5期68卷 052405-052405页

作者： G. Brown B. Kraczek A. Janotti T. C. Schulthess G. M. Stocks D. D. Johnson Center for Computational Sciences Oak Ridge National Laboratory Oak Ridge Tennessee 37831 USA Computer Science and Mathematics Division Oak Ridge National Laboratory Oak Ridge Tennessee 37831 USA School of Computational Science and Information Technology Florida State University Tallahassee Florida 32306 USA Departments of Physics and Materials Science and Engineering University of Illinois at Urbana-Champaign Urbana Illinois 61801 USA Metals and Ceramics Division Oak Ridge National Laboratory Oak Ridge Tennessee 37831 USA

FePt in the L10 (tetragonal) phase is of interest due to its ease of synthesis as nanoparticles and because superparamagnetism is suppressed by the large magnetoanisotropy energy (MAE) of the L10 phase. Here we present the results of first-principles electronic-structure calculations that reveal a competition between ferromagnetic (FM) and antiferromagnetic (AFM) ordering of the alternating Fe planes, with energy differences less than room-temperature thermal energy. We find that the FM state is stabilized relative to the AFM state as L10 tetragonal distortion decreases or chemical (antisite) disorder increases on Pt planes. Inherently, then, there is a competition between stabilizing the FM state and maintaining the large MAE in FePt, and optimally maximizing both is important for nanomagnetic applications.

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Preface

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Lecture Notes in computer science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 2003年 2713卷

作者： Chung, Chin-Wan Kim, Chong-Kwon Kim, Won Ling, Tok-Wang Song, Kwan-Ho Korea Advanced Institute of Science and Technology Division of Computer Science 373-1 Guseong-Dong Yuseong-Gu Daejeon Korea Republic of Seoul National University Dept. of Computer Engineering San 56-1 Shillim-Dong Gwanak-Gu Seoul Korea Republic of Cyber Database Solutions Inc 3445 Executive Center Drive Suite 256 TX United States National University of Singapore Dept. of Computer Science 3 Science Drive 2 Singapore Singapore Korea Network Information Center 11F KTF B/D 1321-11 Seocho2-Dong Seocho-Gu Seoul Korea Republic of

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Mid-depth Text Understanding by Abductive Chains for Topic Sentence Selection

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International Journal of computer Processing of Languages 2002年第3期15卷 341-357页

作者： JAE-HAK J. BAE JONG-HYEOK LEE School of Computer Engineering and Information Technology University of Ulsan Ulsan 680-749 Republic of Korea Department Computer Science and Engineering Electrical and Computer Engineering Division Pohang University of Science and Technology (POSTECH) and Advanced Information Technology Research Center (AlTrc) Pohang Kyeongbuk 790-784 Republic of Korea

This paper introduces a mid-depth text understanding methodology. By mid-depth we mean that the methodology is: (1) based on shallow text understanding, (2) accomplished with currently available linguistic instruments, and (3) focused towards understanding texts as deeply as possible. To realize the methodology, we set up two new linguistic devices for sentence extraction — sentence abstraction and abductive chains. Sentence abstraction is processing for sentence revision with concept abstraction. Abductive chains are lexical chains with abduction. The chain consists of abductive links which connect coherent parts of abstracted sentences. It aims to identify the causal propensity described or implied in the text as well as to delineate its recurring concepts. With this methodology, a preliminary attempt at mid-depth text understanding is made to locate the topic sentences of a given text. We expect that this methodology will lead us to develop another practical text summarization system.

关键词： Topic Sentence Selection Sentence Abstraction Abductive Chains Text Summarization Text Understanding

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Polygonal mesh simplification with face color and boundary edge preservation using quadric error metric 4

Polygonal mesh simplification with face color and boundary e...

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4th International Symposium on Multimedia Software engineering, MSE 2002

作者： Fahn, Chin-Shyurng Chen, Hung-Kuang Shiau, Yi-Haur Department of Computer Science and Information Engineering National Taiwan University of Science and Technology Taipei106 Taiwan Department of Electronic Engineering National Taiwan University of Science and Technology Taipei106 Taiwan Software and Development Division National Center for High-Performance Computing Hsinchu300 Taiwan

ISBN: (纸本)0769518575

In applications such as scientific and medical visualization, highly detailed polygonal meshes are needed. Rendering these polygonal meshes usually exceeds the capabilities of graphics hardware. To improve rendering efficiency and maintain proper interactivity, the polygonal mesh simplification technique is commonly used to reduce the number of polygons of the mesh and construct a multiresolution representation. We propose a new and simple constraint scheme based on the quadric error metric proposed by Garland and Heckbert (1997, 1998) to preserve face colors and boundary edges during the simplification process. In addition, our method generates progressive meshes that store the polygonal mesh in a continuous multi-resolution representation. According to our experimental results, this new method is successful in preserving face colors and boundary edges. Moreover, we compare the latency of resolution changes for progressive meshes of various models. © 2002 IEEE.

关键词： Color

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Polygonal mesh simplification with face color and boundary edge preservation using quadric error metric

Polygonal mesh simplification with face color and boundary e...

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International Symposium on Multimedia Software engineering

作者： Chin-Shyurng Fahn Hung-Kuang Chen Yi-Haur Shiau Department of Computer Science and Information Engineering National Taiwan University of Science and Technology Taiwan Department of Electronic Engineering National Taiwan University of Science and Technology Taiwan Software and Development Division National Center of High-Performance Computing Taiwan

ISBN: (纸本)0769518575

关键词： computer errors Frequency Error correction computer science Reactive power Mesh generation Data visualization Sampling methods Topology Geometry

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A Grid Application for an Evaluation of Brain Function using Independent Component Analysis (ICA) 02

A Grid Application for an Evaluation of Brain Function using...

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IEEE/ACM International Symposium on Cluster Computing and the Grid (CCGRID)

作者： Y. Mizuno-Matsumoto S. Date T. Kaishima Y. Kadobayashi S. Shimojo Division of Interdisciplinary Image Analysis Department of Medical Robotics and Image Sciences Graduate School of Medicine Osaka University Osaka Japan Department of Information Systems Engineering Graduate School of Engineering Osaka University Osaka Japan Graduate School of Information Science Nara Institute of Science and Technology Nara Japan Cybermedia Center Osaka University Osaka Japan

ISBN: (纸本)9780769515823

For the effective and early diagnosis of brain diseases, we have developed an evaluation system for brain function using an Independent Component Analysis (ICA) method. This evaluation system benefits greatly from the newly emerged Grid. To embody a Grid environment, a Globus grid toolkit has been utilized as a building block. In this research we have distributed the computational workload for the ICA on a Globus based Grid environment composed of two Alpha cluster systems and a personal computer. In addition, in order to allow scientists and application developers to easily build the Grid-enabled system, we also have adopted a Grid-enabled-Message Passing Interface, called MPICH-G. An introduction of MPICH-G to the medical analysis system on a Grid environment makes it possible for a naïve user to realize rapid analysis without special knowledge of the Grid. Magnetoencephalography (MEG), a highly sophisticated medical technology, is used for the measurement of brain function. The proposed method has the ability to integrate various geographically distributed resources and to analyze functional brain data from MEG

关键词： Independent component analysis Magnetic analysis Medical diagnostic imaging Diseases Distributed computing Grid computing Microcomputers Application software Magnetoencephalography Data analysis

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Spectral and spatial parameterization of multi-date satellite images for change detection of linear features

Spectral and spatial parameterization of multi-date satellit...

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IEEE International Symposium on Geoscience and Remote Sensing (IGARSS)

作者： G. Avraham M. Shoshany N.S. Netanyahu Environmental Information Laboratory Bar-llan University Ramat-Gan Israel Geodetic Engineering Division Faculty of Civil Engineering Technion-Israel Institute of Technology Haifa Israel Center of Automation Research University of Maryland College Park MD USA Department of Mathematics and Computer Science Bar-llan University Ramat-Gan Israel

A new technique utilizing combination of feature extraction by change vector analysis and analysis of distances between features allows improvement in change detection of linear features such as roads and water channels. The technique reduces false detection of changes due to image calibration differences, illumination differences and misregistration. The method was applied to areas of steep climatic gradient between Mediterranean and extreme desert regions.

关键词： Satellites image analysis Remote sensing computer vision Vectors information analysis Roads Calibration Convolution Pixel

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A neural network-based technique for change detection of linear features and its application to a Mediterranean region

A neural network-based technique for change detection of lin...

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IEEE International Symposium on Geoscience and Remote Sensing (IGARSS)

作者： I. Feldberg N.S. Netanyahu M. Shoshany Department of Mathematics and Computer Science Bar-llan University Ramat-Gan Israel Center for Automation Research University of Maryland College Park MD USA Geodetic Engineering Division Faculty of Civil Engineering Technion Israel Institute of Technology-Technion Haifa Israel Environmental Information Laboratory Department of Geography Bar-llan University Ramat-Gan Israel

An artificial neural network (ANN) for change detection from multi-temporal satellite images, which was reported in I. Feldberg (2001), has been further developed and tested, as part of a study of an area of high spatio-temporal heterogeneity along a climatic gradient between humid and and climate regions. Four recognition classes, "positive change", "negative change", "false change", and "no change" were learned by a backpropagation feedforward ANN and then applied to Landsat images that were acquired over the study area in 1992 and 1997. A comparison with existing classification techniques indicates, in many instances, significantly improved performance due to the ANN developed.

关键词： Neural networks computer vision Artificial neural networks Electronic mail Neurons Satellites Remote sensing Monitoring Data preprocessing Application software

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