文本块上的word_delimiter

Question

看来，word_delimiter的设计只适用于单个术语。如果我有像下面这样的一段文字呢：

 "Contra-indications of paracetamol can be of certain sorts"

在这种情况下，word_delimiter获取整个句子并将其连接起来，而我只需要它连接"Contra-indications"，以便在文本块内搜索contra indications、contra-indications和contraindications。

Answer 1

你需要一个像这样的分析仪：

{
  "settings": {
    "analysis": {
      "filter": {
        "delimiter_filter": {
          "type": "word_delimiter",
          "catenate_words": true,
          "preserve_original": true
        }
      },
      "analyzer": {
        "delimiter_analyzer": {
          "type": "custom",
          "tokenizer": "whitespace",
          "filter": [
            "lowercase",
            "delimiter_filter"
          ]
        }
      }
    }
  },
  "mappings": {
    "assets": {
      "properties": {
        "domain": {
          "type": "string",
          "analyzer": "delimiter_analyzer"
        }
      }
    }
  }
}

对于示例文本-- Contra-indications of paracetamol can be of certain sorts --这些都是它生成的术语：

           "domain": [
              "be",
              "can",
              "certain",
              "contra",
              "contra-indications",
              "contraindications",
              "indications",
              "of",
              "paracetamol",
              "sorts"
           ]