Term reweighting - PowerPoint PPT Presentation

Chapter 5

Chapter 5. Query Operations. Contents. Introduction User relevance feedback Automatic local analysis Automatic global analysis Trends and research issues. 5.1 Introduction. Difficulty of formulating user queries

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Modern Information Retrieval Chapter 5 Query Operations

Modern Information Retrieval Chapter 5 Query Operations. 報告人：林秉儀學號： 89522022. Introduction. It is difficult to formulate queries which are well designed for retrieval purposes. Improving the initial query formulation through query expansion and term reweighting . Approaches based on:

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