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In the field of Information Processing and Retrieval, textual information retrieval involves locating and extracting relevant documents from a large collection based on user queries. Several search techniques have been developed to enhance the effectiveness and accuracy of this retrieval process. These techniques can be broadly categorized into basic search, advanced search, and intelligent search techniques. 1. Boolean Search: Boolean search is a traditional method that uses Boolean operators like AND, OR, and NOT to combine search terms. For example, if a user searches for “data AND mining,” the system retrieves only those documents that contain both terms. This method offers precise control over search results but may miss relevant documents if the exact terms are not used. 2. Phrase Search: Phrase search retrieves documents that contain an exact sequence of words enclosed in quotation marks. For example, searching _________ _____ ______ ______ __________ ______ ____.
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