arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2001.10781cs.IR
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基于领域特定KB的学术检索

Aspect-based Academic Search using Domain-specific KB

Prajna Upadhyay, Srikanta Bedathur, Tanmoy Chakraborty, Maya Ramanath

摘要:

学术搜索引擎允许科学家探索与给定查询相关的相关工作。通常,用户也知道检索相关文档的“方面”。在这种情况下,可以通过用描述该方面的术语扩展查询来使用现有的搜索引擎。然而,这种方法并不能保证良好的结果,因为简单的关键字匹配并不总是意味着相关性。为了解决这个问题,我们定义并解决了一个新的学术搜索任务,称为“基于方面的检索”,它允许用户指定的方面与查询检索相关的文档的排名列表。其主要思想是使用特定领域的知识库来估计方面的语言模型以及查询,并使用两者的混合来确定文章的相关性。我们的评价结果在开放研究语料库数据集表明,我们的方法优于基于关键字的查询方面的扩展,没有相关反馈。

英文摘要:

Academic search engines allow scientists to explore related work relevant to a given query. Often, the user is also aware of the "aspect" to retrieve a relevant document. In such cases, existing search engines can be used by expanding the query with terms describing that aspect. However, this approach does not guarantee good results since plain keyword matches do not always imply relevance. To address this issue, we define and solve a novel academic search task, called "aspect-based retrieval", which allows the user to specify the aspect along with the query to retrieve a ranked list of relevant documents. The primary idea is to estimate a language model for the aspect as well as the query using a domain-specific knowledge base and use a mixture of the two to determine the relevance of the article. Our evaluation of the results over the Open Research Corpus dataset shows that our method outperforms keyword-based expansion of query with aspect with and without relevance feedback.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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