Elasticsearch同义词分析器不工作 [英] Elasticsearch synonym analyzer not working

问题描述

编辑：要添加到此，同义词似乎与基本查询字符串查询工作。

 query_string：{
default_field：location.region.name.raw，
query：nh
} 
  

返回New汉普郡，但是匹配查询nh没有结果。

---

我试图在我的Elastic索引中的位置字段中添加同义词，这样如果我执行位置搜索对于Mass，Ma或Massachusetts，每次我都会得到相同的结果。我将同义词过滤器添加到我的设置并更改了位置的映射。以下是我的设置：

$ $ $ $ $ $ $ $ $ $ $ $ $ $ $ {
filter：[
lowercase，
synonym_filter
]，
tokenizer：standard
}

filter：{
synonym_filter：{
type：synonym，
synonym：[
United States，美国，美国=>美国，
阿拉巴马州，阿拉伯，阿拉伯，阿拉伯，
阿拉斯加州，阿拉斯加州，唉，唉，
，
Arkansas，Ar，Ark，
California，Ca，Calif，Cal，
Colorado，Co，Colo，Col，
Connecticut，Ct， Conn，
Deleware，De，Del，
Columbia District，Dc，Wash Dc，Washington Dc = ，
Georgia，Ga，
Hawaii，Hi，
Idaho，Id，Ida，
Illinois，Il，Ill，Ills，
Indiana，In，Ind，
Iowa，Ia，Ioa，
Kansas，Kans，Kan，Ks，
Kentucky，Ky，Ken，Kent ，
路易斯安那州，La，
缅因州，我，
马里兰州，Md，
马萨诸塞州，马萨诸塞州，
密歇根州，米，密歇根州，
明尼苏达州，锰，明尼苏达州，
密西西比，小姐，b $ b密苏里州，莫，
蒙大拿州， ，
Nebraska，Ne，Neb，Nebr，
Nevada，Nv，Nev，
New Hampshire，Nh => Nh，
New Jersey ，Nj => Nj，
New Mexico，Nm，N Mex，New M => Nm，
New York，Ny => Ny，
North Carolina，Nc，N Car => Nc，
North Dakota，Nd，N Dak，NoDak => Nd，
Ohio，Oh，O，
Oklahoma ，Ok，Okla，
俄勒冈州或俄勒冈州，俄勒冈州，
宾夕法尼亚州，宾夕法尼亚州，宾州，Penna，
Rhod e Island，Ri，Ri& PP，R Isl => Ri，
South Carolina，Sc，S Car => Sc，
South Dakota，Sd，S Dak，SoDak => Sd，
Tennessee，Te，Tenn，
Texas，Tx，Tex，
Utah，Ut，
Vermont，Vt，
Virginia，Va ，威斯康星州，Wi，威斯康星州，威斯康星州，弗吉尼亚州，弗吉尼亚州，弗吉尼亚州，弗吉尼亚州，弗吉尼亚州，弗吉尼亚州，华盛顿州，华盛顿州， Wisc，
Wyomin，Wi，Wyo
]
}
}

以及location.region字段的映射：

 region：{
属性：{
id：{type：long}，
name：{
type：string，
分析器：同义词，
fields：{raw：{type：string，index：not_analyzed}} 
} 
} 
 
 $ / code> 

但是同义词分析器似乎没有做任何事情。



 match：{
location.region.name：{
query ：马萨诸塞州，
type：phrase，
analyzer：同义词
} 
} 
  

这将返回数百个结果，但如果将Massachusetts替换为Ma或Mass，则会得到0个结果。为什么不行？

解决方案

过滤器的顺序是



  filter：[
lowercase，
synonym_filter
] 
   synonym_filter ，它将不会匹配您定义的任何条目。
 
 
 
为了解决这个问题，我会用小写字母来定义同义词
EDIT: To add on to this, the synonyms seem to be working with basic querystring queries. 
"query_string" : {
    "default_field" : "location.region.name.raw",
    "query" : "nh"
}
This returns all of the results for New Hampshire, but a "match" query for "nh" returns no results. 



I'm trying to add synonyms to my location fields in my Elastic index, so that if I do a location search for "Mass," "Ma," or "Massachusetts" I'll get the same results each time. I added the synonyms filter to my settings and changed the mapping for locations. Here are my settings:
analysis":{
    "analyzer":{
        "synonyms":{
            "filter":[
                "lowercase",
                "synonym_filter"
            ],
        "tokenizer": "standard"
    }
},
"filter":{
    "synonym_filter":{
        "type": "synonym",
        "synonyms":[
            "United States,US,USA,USA=>usa",
            "Alabama,Al,Ala,Ala",
            "Alaska,Ak,Alas,Alas",
            "Arizona,Az,Ariz",
            "Arkansas,Ar,Ark",
            "California,Ca,Calif,Cal",
            "Colorado,Co,Colo,Col",
            "Connecticut,Ct,Conn",
            "Deleware,De,Del",
            "District of Columbia,Dc,Wash Dc,Washington Dc=>Dc",
            "Florida,Fl,Fla,Flor",
            "Georgia,Ga",
            "Hawaii,Hi",
            "Idaho,Id,Ida",
            "Illinois,Il,Ill,Ills",
            "Indiana,In,Ind",
            "Iowa,Ia,Ioa",
            "Kansas,Kans,Kan,Ks",
            "Kentucky,Ky,Ken,Kent",
            "Louisiana,La",
            "Maine,Me",
            "Maryland,Md",
            "Massachusetts,Ma,Mass",
            "Michigan,Mi,Mich",
            "Minnesota,Mn,Minn",
            "Mississippi,Ms,Miss",
            "Missouri,Mo",
            "Montana,Mt,Mont",
            "Nebraska,Ne,Neb,Nebr",
            "Nevada,Nv,Nev",
            "New Hampshire,Nh=>Nh",
            "New Jersey,Nj=>Nj",
            "New Mexico,Nm,N Mex,New M=>Nm",
            "New York,Ny=>Ny",
            "North Carolina,Nc,N Car=>Nc",
            "North Dakota,Nd,N Dak, NoDak=>Nd",
            "Ohio,Oh,O",
            "Oklahoma,Ok,Okla",
            "Oregon,Or,Oreg,Ore",
            "Pennsylvania,Pa,Penn,Penna",
            "Rhode Island,Ri,Ri & PP,R Isl=>Ri",
            "South Carolina,Sc,S Car=>Sc",
            "South Dakota,Sd,S Dak,SoDak=>Sd",
            "Tennessee,Te,Tenn",
            "Texas,Tx,Tex",
            "Utah,Ut",
            "Vermont,Vt",
            "Virginia,Va,Virg",
            "Washington,Wa,Wash,Wn",
            "West Virginia,Wv,W Va, W Virg=>Wv",
            "Wisconsin,Wi,Wis,Wisc",
            "Wyomin,Wi,Wyo"
        ]
    }
}
And the mapping for the location.region field:
"region":{
    "properties":{
        "id":{"type": "long"},
        "name":{
            "type": "string",
            "analyzer": "synonyms",
            "fields":{"raw":{"type": "string", "index": "not_analyzed" }}
        }
    }
}
But the synonyms analyzer doesn't seem to be doing anything. This query for example:
"match" : {
    "location.region.name" : {
        "query" : "Massachusetts",
        "type" : "phrase",
        "analyzer" : "synonyms"
    }
}
This returns hundreds of results, but if I replace "Massachusetts" with "Ma" or "Mass" I get 0 results. Why isn't it working?
解决方案
The order of the filters is
filter":[
    "lowercase",
    "synonym_filter"
]
So, if elasticsearch is "lowercasing" first the tokens, when it executes the second step, synonym_filter, it won't match any of the entries you have defined.

To solve the problem, I would define the synonyms in lower case

                        
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