Ngram,edge-ngram,shingle多元分词器的几个注意点：
1、多元分词器Ngram,edge-ngram为单词字符级分词器,通常在索引时间指定，在搜索时间不指定。
2、1-grams,bigrams,trigrams分别指代1元，2元，3元分词器。
3、min_gram,max_gram指定字符的的最小最大分隔范围，output_unigrams指定不输出1元。
4、shingle指字多元分词以单词级分词器。
代码语言：txt复制DELETE myind_ngram
PUT myind_ngram
{
"settings": {
"analysis": {
"analyzer": {
"myngram":{
"tokenizer":"mytokenizer"
}
},
"tokenizer": {
"mytokenizer":{
"type":"edge_ngram",
"min_gram":1,
"max_gram":2
}
}
}
},
"mappings": {
"properties": {
"content":{
"type":"text",
"analyzer": "myngram"
}
}
}
}
POST myind_ngram/_analyze
{
"text":"Quick Foxes.",
"analyzer":"myngram"
}
POST _analyze
{
"text":"hello world",
"tokenizer":{"type":"ngram","min_gram":1,"max_gram":2}
}
POST _analyze
{
"text":"Quick Foxes.",
"tokenizer":{"type":"edge_ngram","min_gram":1,"max_gram":10}
}
POST _analyze
{
"text":"Quick Foxes Are You Ok",
"tokenizer":"standard",
"filter":{"type":"shingle","output_unigrams":false}
}
