【发布时间】:2014-01-05 02:10:22
【问题描述】:
我有一个庞大的姓名数据库,主要来自苏格兰。我们目前正在制作一个原型来替换执行搜索的现有软件。这仍在生产中,我们的目标是使我们的结果尽可能接近同一搜索的当前结果。
我希望有人可以帮助我,我正在搜索 Elastic Search,查询是“Michael Heaney”,我得到了一些疯狂的结果。当前搜索返回两个主要姓氏,它们是 - “Heaney”和“Heavey”,名字都是“Michael”,我可以在 Elastic Search 中获得“Heaney”结果,但是我无法获得“Heavey”和 ES返回不姓“迈克尔”的人,但我很欣赏这是因为它是模糊查询的一部分。我知道这是一个狭窄的用例,因为它只是一个搜索,但获得这个结果并知道我如何获得它会有所帮助。
谢谢。
映射
{
"jr": {
"_all": {
"enabled": true,
"index_analyzer": "index_analyzer",
"search_analyzer": "search_analyzer"
},
"properties": {
"pty_forename": {
"type": "string",
"index": "analyzed",
"boost": 2,
"index_analyzer": "index_analyzer",
"search_analyzer": "search_analyzer",
"store": "yes"
},
"pty_full_name": {
"type": "string",
"index": "analyzed",
"boost": 4,
"index_analyzer": "index_analyzer",
"search_analyzer": "search_analyzer",
"store": "yes"
},
"pty_surname": {
"type": "string",
"index": "analyzed",
"boost": 4,
"index_analyzer": "index_analyzer",
"search_analyzer": "search_analyzer",
"store": "yes"
}
}
}
}'
索引设置
{
"settings": {
"number_of_shards": 2,
"number_of_replicas": 0,
"analysis": {
"analyzer": {
"index_analyzer": {
"tokenizer": "standard",
"filter": [
"standard",
"my_delimiter",
"lowercase",
"stop",
"asciifolding",
"porter_stem",
"my_metaphone"
]
},
"search_analyzer": {
"tokenizer": "standard",
"filter": [
"standard",
"my_metaphone",
"synonym",
"lowercase",
"stop",
"asciifolding",
"porter_stem"
]
}
},
"filter": {
"synonym": {
"type": "synonym",
"synonyms_path": "synonyms/synonyms.txt"
},
"my_delimiter": {
"type": "word_delimiter",
"generate_word_parts": true,
"catenate_words": false,
"catenate_numbers": false,
"catenate_all": false,
"split_on_case_change": false,
"preserve_original": false,
"split_on_numerics": false,
"stem_english_possessive": false
},
"my_metaphone": {
"type": "phonetic",
"encoder": "metaphone",
"replace": false
}
}
}
}
}'
模糊
{
"from":0, "size":100,
"query": {
"bool": {
"should": [
{
"fuzzy": {
"pty_surname": {
"min_similarity": 0.2,
"value": "Heaney",
"prefix_length": 0,
"boost": 5
}
}
},
{
"fuzzy": {
"pty_forename": {
"min_similarity": 1,
"value": "Michael",
"prefix_length": 0,
"boost": 1
}
}
}
]
}
}
}
【问题讨论】:
标签: search lucene elasticsearch search-engine