1

我有大约一千个已经索引的 lucene 文档，我想为所有文档中的所有术语检索每个文档的术语频率，这就是我索引事物的方式

        HashMap<Integer, String> documentList = getEachDocumentSeparated();
        Analyzer analyzer = new StandardAnalyzer();
        Directory index = FSDirectory.open(Paths.get(RESULT_ADDRESS));
        IndexWriterConfig config = new IndexWriterConfig(analyzer);
        config.setOpenMode(IndexWriterConfig.OpenMode.CREATE);
        IndexWriter w = new IndexWriter(index, config);
        FieldType fieldType = new FieldType((TextField.TYPE_STORED));
        IndexOptions indexOptions = IndexOptions.DOCS_AND_FREQS_AND_POSITIONS_AND_OFFSETS;
        fieldType.setIndexOptions(indexOptions);
        for (Map.Entry<Integer, String> pair : documentList.entrySet())
        {
        Document doc = new Document();
        Field bodyField = new Field("body", pair.getValue(), fieldType);
        doc.add(new StringField("id", pair.getKey(), Field.Store.YES));
        doc.add(bodyField);
        w.addDocument(doc);
        }

例如，我想实现如下所示的向量

sterm,1(5),2(10),330(2),500(1),1001(3)

意思是sterm在文档一中重复了 5 次，在文档 2 中也重复了 10 次，依此类推...

4

0 回答 0