Automatic abstracting and indexing. II. Production of indicative abstracts by application of contextual inference and syntactic coherence criteria
Automatic abstracting and indexing. II. Production of indicative abstracts by application of contextual inference and syntactic coherence criteria
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自动摘要和索引。
DOI：
10.1002/asi.4630220405
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发表时间：
1971
影响因子：
3.5
通讯作者：
Antonio Zamora
中科院分区：
文献类型：
--
作者：
J. Rush;R. Salvador;Antonio Zamora
随着合格摘要的日益短缺，时间、成本和价值等因素推动了自动生成摘要和索引的趋势。这一趋势使得人们越来越重视将摘要作为自动检索系统的数据中心。这就需要创作高质量的摘要。本文的目的是报告从原始文献全文中自动生成高质量摘要的技术的发展。有必要分析各种选句方法成功的条件，以便制定出选择句子以形成摘要的标准。但显然，也可以通过拒绝与摘要无关的原文句子来产生摘要。正如将看到的，这一点可能是本论文最重要的贡献。讨论了句子的选择和拒绝的方法。这些包括上下文推理、句间参照、频率标准和连贯性考虑。我们开发的自动摘要系统基本上由一个称为单词控制列表的词典和一组规则组成，这些规则用于实现为每个WCL条目指定的特定功能。到目前为止，我们获得的摘要质量足够好，表明有必要对自动摘要系统的方法进行大规模测试。
Together with the increasing shortage of qualified abstractors, the factors of time, cost and value have lent impetus to a trend toward the automatic generation of abstracts and indexes. This trend has caused increased emphasis to be placed on the abstract as the locus of data for automatic retrieval systems. This necessitates the creation of high quality abstracts. It is the purpose of this paper to report on the development of techniques for the automatic production of high quality abstracts from the full text of the original document. It is necessary to analyze the conditions under which various methods of sentence selection are successful, in order to develop criteria for selecting sentences to form an abstract. But clearly, an abstract can also be produced by rejecting sentences of the original which are irrelevant to the abstract. As will be seen, it is this point which is perhaps the most significant contribution of this paper. Methods of sentence selection and rejection are discussed. These include contextual inference, intersentence reference, frequency criteria, and coherency considerations. The automatic abstracting system we have developed consists basically of a dictionary, called the Word Control List, and of a set of rules for implementing certain functions specified for each WCL entry. The abstracts we have obtained so far are of sufficiently good quality to indicate that large-scale testing of the methods of the automatic abstracting system is warranted.