我正在尝试使用_analyze API获取关键字标记化的多字同义词。 API返回单字同义词的预期结果,但不是多字的同义词。这是我的设置和分析链:
curl -XPOST "http://localhost:9200/test" -d'
{
"settings": {
"index": {
"analysis": {
"filter": {
"my_syn_filt": {
"type": "synonym",
"synonyms": [
"foo bar, fooo bar",
"bazzz, baz"
]
}
},
"analyzer": {
"my_synonyms": {
"filter": [
"lowercase",
"my_syn_filt"
],
"tokenizer": "keyword"
}
}
}
}
}
}'
现在使用_analyze API进行测试:
curl 'localhost:9200/test/_analyze?analyzer=my_synonyms&text=baz'
调用返回我期望的内容(同样为'bazzz'返回相同的结果):
{
"tokens": [
{
"position": 1,
"type": "SYNONYM",
"end_offset": 3,
"start_offset": 0,
"token": "bazzz"
},
{
"position": 1,
"type": "SYNONYM",
"end_offset": 3,
"start_offset": 0,
"token": "baz"
}
]
}
现在当我尝试使用多字同义词文本进行相同的调用时,API只返回一个类型为'word'的标记,没有同义词:
curl 'localhost:9200/test/_analyze?analyzer=my_synonyms&text=foo+bar'
(返回)
{
"tokens": [
{
"position": 1,
"type": "word",
"end_offset": 7,
"start_offset": 0,
"token": "foo bar"
}
]
}
为什么分析API不会返回类型为SYNONYM的“foo bar”和“fooo bar”令牌?
答案 0 :(得分:13)
" tokenizer":"关键字"键值ALSO需要添加到my_syn_filt过滤器声明中,如下所示:
curl -XPOST "http://localhost:9200/test" -d'
{
"settings": {
"index": {
"analysis": {
"filter": {
"my_syn_filt": {
"tokenizer": "keyword",
"type": "synonym",
"synonyms": [
"foo bar, fooo bar",
"bazzz, baz"
]
}
},
"analyzer": {
"my_synonyms": {
"filter": [
"lowercase",
"my_syn_filt"
],
"tokenizer": "keyword"
}
}
}
}
}
}'
通过上面的映射,_analyze API返回所需的SYNONYM标记:
{
"tokens": [
{
"position": 1,
"type": "SYNONYM",
"end_offset": 7,
"start_offset": 0,
"token": "foo bar"
},
{
"position": 1,
"type": "SYNONYM",
"end_offset": 7,
"start_offset": 0,
"token": "fooo bar"
}
]
}