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arXiv 1412.6629cs.IR
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面向信息检索的具有长短期记忆的语义建模

Semantic Modelling with Long-Short-Term Memory for Information Retrieval

H. Palangi, L. Deng, Y. Shen, J. Gao, X. He, J. Chen, X. Song, R. Ward

摘要:

在本文中,我们解决了以下问题,在Web文档和信息检索(IR):我们如何使用长期的上下文信息,以获得更好的IR性能?与使用词袋表示查询和文档的常见IR方法不同,我们将它们视为单词序列,并使用长短期记忆(LSTM)来捕获上下文依赖关系。据我们所知,这是LSTM首次应用于信息检索任务。由于信息检索问题的特殊性,训练策略与传统的LSTM不同。来自Bing网络搜索的IR任务的实验评估表明,所提出的方法在解决词汇不匹配和长期的上下文建模问题的能力,从而显着优于现有的最先进的方法的Web文档检索任务。

英文摘要:

In this paper we address the following problem in web document and information retrieval (IR): How can we use long-term context information to gain better IR performance? Unlike common IR methods that use bag of words representation for queries and documents, we treat them as a sequence of words and use long short term memory (LSTM) to capture contextual dependencies. To the best of our knowledge, this is the first time that LSTM is applied to information retrieval tasks. Unlike training traditional LSTMs, the training strategy is different due to the special nature of information retrieval problem. Experimental evaluation on an IR task derived from the Bing web search demonstrates the ability of the proposed method in addressing both lexical mismatch and long-term context modelling issues, thereby, significantly outperforming existing state of the art methods for web document retrieval task.

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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