使用 multimatch elasticsearch 的 bool 查询中的模糊性 [英] fuzziness in bool query with multimatch elasticsearch

问题描述

我使用的是elasticsearch 6.3.0 版.我想将模糊性与多重匹配一起使用.但没有选择.有人可以为我提供解决方案吗?提前致谢查询:

i am using elasticsearch version 6.3.0. I want to use fuzziness along with multimatch. but there is no option for that. Can anybody provide me a solution ? Thanks in advance Query :

    {   "query": {
        "bool": {
          "must": [
            {"function_score": {
              "query": {
                "multi_match": {
                  "query": "local",
                  "fields": [
                      "user.name^3", 
                      "main_product"
                    ],
                    "type": "phrase"
                }
              }
            }}
          ], 
          "filter": {
            "geo_distance": {
              "distance": "1000km",

              "user.geolocation": {
                "lat": 25.55,
                "lon": -84.44
              }
            }
          }
        }   
} }

推荐答案

查看您现有的查询，您正在寻找

Looking at your existing query, you are looking for mix of

• 基于字段的提升
• 多字段匹配
• 词组匹配
• 模糊匹配

如果不是 phrase_match，您可以根据您的要求简单地添加 "fuzziness": "AUTO" 或 "fuzziness":1 或任何数字 在你现有的查询中，你会得到你想要的.

If it isn't phrase_match you can simply add "fuzziness": "AUTO" or "fuzziness":1 or whatever number based on your requirement in your existing query and you'd get what you are looking for.

POST <your_index_name>/_search
{  
   "query":{  
      "bool":{  
         "must":[  
            {  
               "function_score":{  
                  "query":{  
                     "multi_match":{  
                        "query":"local",
                        "fields":[  
                           "user.name^3",
                           "main_product"
                        ],
                        "fuzziness":"AUTO"
                     }
                  }
               }
            }
         ],
         "filter":{  
            "geo_distance":{  
               "distance":"1000km",
               "user.geolocation":{  
                  "lat":25.55,
                  "lon":-84.44
               }
            }
         }
      }
   }
}

模糊短语:

在这种情况下，您需要使用 跨度查询

为了简单起见，我放弃了过滤部分，并提出了以下查询.假设我正在搜索名为 pearl jam 的短语.

I've discarded the filtering part just for the sake of simplicity and came up with the below query. And let's say that I am searching for phrase called pearl jam.

POST <your_index_name>/_search
{  
   "query":{  
      "function_score":{  
         "query":{  
            "bool":{  
               "should":[  
                  {  
                     "bool":{  
                        "boost":3,
                        "must":[  
                           {  
                              "span_near":{  
                                 "clauses":[  
                                    {  
                                       "span_multi":{  
                                          "match":{  
                                             "fuzzy":{  
                                                "user.name":"pearl"
                                             }
                                          }
                                       }
                                    },
                                    {  
                                       "span_multi":{  
                                          "match":{  
                                             "fuzzy":{  
                                                "user.name":"jam"
                                             }
                                          }
                                       }
                                    }
                                 ],
                                 "slop":0,
                                 "in_order":true
                              }
                           }
                        ]
                     }
                  },
                  {  
                     "bool":{  
                        "boost":1,
                        "must":[  
                           {  
                              "span_near":{  
                                 "clauses":[  
                                    {  
                                       "span_multi":{  
                                          "match":{  
                                             "fuzzy":{  
                                                "main_product":"pearl"
                                             }
                                          }
                                       }
                                    },
                                    {  
                                       "span_multi":{  
                                          "match":{  
                                             "fuzzy":{  
                                                "main_product":"jam"
                                             }
                                          }
                                       }
                                    }
                                 ],
                                 "slop":0,
                                 "in_order":true
                              }
                           }
                        ]
                     }
                  }
               ]
            }
         }
      }
   }
}

所以我正在做的是基于模糊匹配的多字段短语中的字段对称为pearl jam的短语执行增强.

So what I am doing is performing boosting based on fields in multi-field phrase with fuzzy match for phrase called pearl jam.

拥有 slop: 0 和 in_order:true 将使我能够对我在子句中指定的单词进行短语匹配.

Having slop: 0 and in_order:true would enable me to do phrase match for the words I've specified in the clauses.

如果您有任何疑问，请告诉我.

Let me know if you have any queries.

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