在Lucene中获取每个文档的搜索词命中数(出现次数) [英] Get search word Hits ( number of occurences) per document in Lucene

问题描述

有人可以建议我在Lucene中使每个文档的单词命中率最高的最佳方法吗?.

Can any one suggest me the best way to get Hits( no of occurrences ) of a word per document in Lucene?..

推荐答案

Lucene使用基于字段的索引，而不是基于文档的索引. 为了获得每个文档的字数:

Lucene uses a field-based, rather than document-based, index. In order to get term counts per document:

1. 使用 IndexReader.document()和isDeleted().
2. 在文档d中，使用

1. Iterate over documents using IndexReader.document() and isDeleted().
2. In document d, iterate over fields using Document.getFields().
3. For each field f, get terms using getTermFreqVector().
4. Go over the term vector and sum frequencies per terms.
5. The sum of term frequencies per field will give you the document's term frequency vector.

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