Document Structure Analysis for the NTCIR-5 Patent Retrieval Task
Document Structure Analysis for the NTCIR-5 Patent Retrieval Task
复制标题
NTCIR-5专利检索任务的文档结构分析
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
Tetsuya Ishikawa
中科院分区：
文献类型：
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作者：
Atsushi Fujii;Tetsuya Ishikawa
本文描述了我们的系统参与 NTCIR-5 专利检索任务中的文档和段落检索子任务。这些子任务的目的是无效性检索，其中包含目标权利要求的专利申请用于检索可以使权利要求中的要求无效的文档。我们的系统的特点是对目标权利要求和整个申请进行结构分析。目标声明被分割成多个组件，每个组件都用于生成初始查询。应用程序的结构用于增强每个查询。相关文档的候选者被检索并逐个组件地排序。将这些文档列表整合得到最终的文档列表。每个文档中的所有段落根据与目标主张的相关性进行排名。我们通过实验展示了我们系统的有效性。
This paper describes our system participated in the Document and Passage Retrieval Subtasks at the NTCIR-5 Patent Retrieval Task. The purpose of these subtasks was the invalidity search, in which a patent application including a target claim is used to search documents that can invalidatethe demand in the claim. Our system is characterized by the structure analysis for both target claim and entire application. The target claim is segmented into components, each of which is used to produce an initial query. The structure of the application is used to enhance each query. The candidates of relevant documents are retrieved and ranked on a component-by-component basis. The final document list is obtained by integrating these document lists. All passages in each document are ranked according to the relevance to the target claim. We show the effectiveness of our system experimentally.