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Study on Information Utilization System for Heterogeneous Contents

异构内容信息利用系统研究

基本信息

批准号：
13224087
负责人：
ADACHI Jun
金额：
$ 71.1万
依托单位：
National Institute of Informatics
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research on Priority Areas
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2005
项目状态：
已结题

项目摘要

This project aims at developing technology for utilizing the heterogeneous contents. We studied link and structural analysis of Webs, cross-media processing technology, epistemological framework of the Web and developed corpora for evaluating information utilization methods for the Web.1) We developed an information extraction and organization methods using the textual and graphical structure of the Web-Web page clustering methods based on the link structure-Topic tracking using non-linear time-content analysis2) We proposed some advanced methods for processing and utilizing multimedia as follows, focusing on media heterogeneity:-topic detection from multilingual text collection-user adaptive text summarization based on content types-crossmedia search by enhancing annotation-based image retrieval model with content-based features-JuNii+: user interface for image retrieval-utilizing interview video archives for learning3) We organized a series of evaluation workshops "NTCIR", in which a number of researchers participated to develop new testbeds, each of which consists of a common test data for research on heterogeneous digital content. As the results, for instance, we built up a terabyte-scale dataset by crawling the -jp domain, and established evaluation methodologies to meet the practical situation. These contributed to the progress of the research in this area4) We analyzed the epistemological framework within which engineers process and model the Web information sources, contrasting it with the modern system of printed books. On the basis of the analysis, we concluded that it is hard to directly apply the model defined by the quintessentially modern concept of information accumulation as represented in the ideal of libraries, and showed that "information editing" would be necessary to explore fully the potential of web information sources.

本项目旨在开发利用异构内容的技术。我们研究了网页的链接和结构分析、跨媒体处理技术、1)开发了一种基于Web文本和图形结构的信息提取和组织方法；基于链接结构的页面聚类方法；基于非线性时间-内容分析的主题跟踪方法；2)提出了一些先进的多媒体处理和利用方法。关注媒体异质性：-多语言文本集合的主题检测-基于内容类型的用户自适应文本摘要-基于内容特征增强基于注释的图像检索模型的跨媒体搜索- junii +；3)我们组织了一系列“NTCIR”评估研讨会，由多位研究人员参与开发新的试验台，每个试验台由一个通用的测试数据组成，用于研究异构数字内容。以结果为例，我们通过爬行-jp域建立了tb规模的数据集，并建立了满足实际情况的评估方法。我们分析了工程师处理和建模网络信息源的认识论框架，并将其与现代印刷图书系统进行了对比。在此基础上，我们得出了图书馆理想中典型的现代信息积累概念所定义的模式难以直接应用的结论，并指出要充分挖掘网络信息源的潜力，“信息编辑”是必要的。