在 Lucene/Lucene.net 搜索中，我如何计算每个文档的点击次数? [英] In a Lucene / Lucene.net search, how do I count the number of hits per document?

问题描述

在搜索一堆文档时，我可以轻松找到符合我搜索条件的文档数量:

When searching a bunch of documents, I can easily find the number of documents which match my search criteria:

Hits hits = Searcher.Search(query);
int DocumentCount = hits.Length();

如何确定文档中的总命中数?例如，假设我搜索congress"并返回 2 个文档.如何获得每个文档中出现大会"的次数?例如，假设会议"在文档 #1 中出现 2 次，在文档 #2 中出现 3 次.我正在寻找的结果是 5.

How do I determine the total number of hits within the documents? For example, let's say I search for "congress" and I get 2 documents back. How can I get the number of times "congress" occurs in each document? For example let's say "congress" occurs 2 times in document #1 and 3 times in document #2. The result I'm looking for is 5.

推荐答案

这是 Lucene Java，但应该适用于 Lucene.NET:

This is Lucene Java, but should work for Lucene.NET:

List docIds = // doc ids for documents that matched the query, 
              // sorted in ascending order 

int totalFreq = 0;
TermDocs termDocs = reader.termDocs();
termDocs.seek(new Term("my_field", "congress"));
for (int id : docIds) {
    termDocs.skipTo(id);
    totalFreq += termDocs.freq();
}

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