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官方运营-Sean丶♥
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iOS设备
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5 yrs
Lucene相关性算法TF-IDF、BM25算法先容
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Lucene相关性算法TF-IDF、BM25算法先容
判定网页内容是否与用户査询相关,这依赖于搜索引擎所来用的检索模子。检索模子是搜索引擎的理论基本,为量化相关性提供了一种数学模子,是对查询词和文档之间举办相似度计较的框架和要领。其本质就是相关度建模。如图所示,检索模子地址搜索引擎系统架构位置:
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