基于知识的PostScript文件元数据提取

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2000-06-01 DOI:10.1145/336597.336639

G. Giuffrida, E. C. Shek, Jihoon Yang

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引用次数: 83

摘要

自动文档元数据提取过程是一个重要的任务，在世界上，成千上万的文档只是一个“点击”之遥。因此，需要强大的索引来支持有效的检索。即将发布的XML标准在这个方向上迈出了重要的一步，因为它的半结构化表示将文档元数据与文档文本一起传递。例如，如果论文存储在XML中，那么由作者或附属机构检索科学论文将是一项简单的任务。不幸的是，今天，网络上绝大多数的文档都是以没有附加语义的形式提供的。将现有文档转换为半结构化表示非常耗时，而且不容易应用任何自动过程。本文讨论了一个基于空间/视觉知识原理的系统，用于从PostScript文件中提取科学论文的元数据。我们的系统嵌入了关于科学论文图形布局的一般知识来指导元数据提取过程。该系统可以有效地辅助数字图书馆的自动索引创建。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Knowledge-based metadata extraction from PostScript files

The automatic document metadata extraction process is animportant task in a world where thousands of documents are just one``click'' away. Thus, powerful indices are necessary to support effective retrieval. The upcoming XML standard represents an important step in this direction as itssemistructuredrepresentation conveys document metadata together with the text of the document. For example, retrieval of scientific papers by authors or affiliations would be a straightforward tasks if papers were stored in XML.Unfortunately, today, the largest majority of documents on the web are available in forms that do not carryadditional semantics. Converting existing documents to a semistructured representation is time consuming and no automatic process can be easily applied. In this paper we discuss a system, based on a novel spatial/visualknowledge principle, for extracting metadata from scientific papers storedas PostScript files. Our system embeds the general knowledge about the graphical layout of a scientific paper to guide the metadata extraction process. Our system can effectively assist the automatic index creation for digital libraries.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.