nlp

Information Retrieval(IR)

nlp664-week13

Posted by renjie on April 12, 2020


information Retrieval(IR)

Information Retrieval (IR) is finding material (usually documents) of an unstructured nature (usually text) that satisfies an information need from within large collections (usually stored on computers)

“Document” is the generic term for an information holder (book, chapter, article, webpage, etc)

Web Search is the branch of IR where the collection of documents are those located on the web.网页搜索是其中一种应用

IR Systems

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