Filter Elasticsearch同义词分析器不工作
编辑:为了补充这一点,同义词似乎在处理基本的查询字符串查询Filter Elasticsearch同义词分析器不工作,filter,analyzer,synonym,
elasticsearch,Filter,Analyzer,Synonym,
elasticsearch,编辑:为了补充这一点,同义词似乎在处理基本的查询字符串查询 "query_string" : { "default_field" : "location.region.name.raw", "query" : "nh" } 这将返回新罕布什尔州的所有结果,但对“nh”的“匹配”查询不会返回任何结果 我试图在弹性索引中的位置字段中添加同义词,这样,如果我对“Mass”、“Ma”或“Massachusetts”进行位置搜索,每次都会得到相同的结果。我在设置中添加了同义词过滤器,并
"query_string" : {
"default_field" : "location.region.name.raw",
"query" : "nh"
}
这将返回新罕布什尔州的所有结果,但对“nh”的“匹配”查询不会返回任何结果
我试图在弹性索引中的位置字段中添加同义词,这样,如果我对“Mass”、“Ma”或“Massachusetts”进行位置搜索,每次都会得到相同的结果。我在设置中添加了同义词过滤器,并更改了位置映射。以下是我的设置:
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"
]
}
}
以及location.region字段的映射:
"region":{
"properties":{
"id":{"type": "long"},
"name":{
"type": "string",
"analyzer": "synonyms",
"fields":{"raw":{"type": "string", "index": "not_analyzed" }}
}
}
}
但是同义词分析器似乎什么也没做。例如,此查询:
"match" : {
"location.region.name" : {
"query" : "Massachusetts",
"type" : "phrase",
"analyzer" : "synonyms"
}
}
这将返回数百个结果,但如果我将“Massachusetts”替换为“Ma”或“Mass”,则得到0个结果。为什么不工作?过滤器的顺序是
filter":[
"lowercase",
"synonym_filter"
]
因此,如果elasticsearch首先将标记“小写”,当它执行第二步时,同义词过滤器
,它将不匹配您定义的任何条目
为了解决这个问题,我将以小写形式定义同义词您还可以将同义词过滤器定义为不区分大小写: "filter":{ "synonym_filter":{ "type": "synonym", "ignore_case" : "true", "synonyms":[ ... ] } } “过滤器”:{ “同义词过滤器”:{ “类型”:“同义词”, “忽略案例”:“正确”, “同义词”:[ ... ] } }
我想问一个关于过滤器工作机制的问题。过滤器在分析器中是如何工作的?在本例中,小写筛选工作和返回标记和标记由同义词_filter获取,同义词_筛选工作和返回新的筛选标记。这个场景是正确的还是如何正确的?是的,您描述的场景是正确的:)通常,执行标记器(在本例中为标准标记器),然后按照定义的顺序进行标记过滤器(在本例中,首先是小写,然后是同义词过滤器)。文档解释得很好
ignore\u现在不推荐使用案例