Question

我有以下映射到我的短语建议者：

{
   "settings": {
      "analysis": {
         "analyzer": {
            "suggests_analyzer": {
               "tokenizer": "standard",
               "filter": [
                  "lowercase",
                  "asciifolding",
                  "shingle_filter"
               ],
               "type": "custom"
            }
         },
         "filter": {
            "shingle_filter": {
               "min_shingle_size": 2,
               "max_shingle_size": 6,
               "type": "shingle"
            }
         }
      }
   },
   "mappings": {
      "sample_data": {
         "properties": {
            "name": {
               "type": "string",
               "analyzer": "suggests_analyzer"
            }
         }
      }
   }
}

我患有肺癌＆＃34;，＆＃34;结直肠癌＆＃34;，＆＃34;乳腺癌＆＃34;在我的索引中索引。但是当我查询一个错误的查询时，两个单词都是错误的，例如＆＃34; lhng cancar＆＃34;当我使用整理功能时，返回零结果。我的示例查询如下。

{
   "suggest": {
      "text": "lhng cancar",
      "simple_phrase": {
         "phrase": {
            "field": "name",
            "size": 5,
            "real_word_error_likelihood": 0.95,
            "max_errors": 0.5,
            "direct_generator": [
               {
                  "field": "name",
                  "suggest_mode": "always",
                  "size": 5

               }
            ],
            "collate": {
               "query": {
                  "inline": {
                     "match_phrase": {
                        "{{field_name}}": "{{suggestion}}"
                     }
                  }
               },
               "params": {
                  "field_name": "name"
               },
               "prune": false
            }
         }
      }
   },
   "size": 0
}

对上述查询的回复是：

{
   "took": 17,
   "timed_out": false,
   "_shards": {
      "total": 5,
      "successful": 5,
      "failed": 0
   },
   "hits": {
      "total": 1868381,
      "max_score": 0,
      "hits": []
   },
   "suggest": {
      "simple_phrase": [
         {
            "text": "lhng cancar",
            "offset": 0,
            "length": 11,
            "options": []
         }
      ]
   }
}

在查询中需要进行哪些更改，以便获得预期的结果＆＃34;肺癌＆＃34;在建议？

Answer 1

您必须将max_errors提升至0.8或更高。

这里给出了相同的答案 ElasticSearch - Phrase Suggestor

Answer 2

提高max_errors: 2的参数解决了我的问题。

短语建议者Elasticsearch没有纠正两个单词

2 个答案: