西班牙语分析器
内置的 spanish 分析器可以通过以下命令应用于文本字段
PUT /spanish-index
{
"mappings": {
"properties": {
"content": {
"type": "text",
"analyzer": "spanish"
}
}
}
}
词干排除
您可以使用以下命令将 stem_exclusion 与此语言分析器一起使用
PUT index_with_stem_exclusion_spanish_analyzer
{
"settings": {
"analysis": {
"analyzer": {
"stem_exclusion_spanish_analyzer": {
"type": "spanish",
"stem_exclusion": ["autoridad", "aprobación"]
}
}
}
}
}
西班牙语分析器内部结构
spanish 分析器由以下组件构建
-
分词器：
standard -
词元过滤器
- 小写
- 停用词 (西班牙语)
- 关键词
- 词干提取器 (西班牙语)
自定义西班牙语分析器
您可以使用以下命令创建自定义西班牙语分析器
PUT /spanish-index
{
"settings": {
"analysis": {
"filter": {
"spanish_stop": {
"type": "stop",
"stopwords": "_spanish_"
},
"spanish_stemmer": {
"type": "stemmer",
"language": "light_spanish"
},
"spanish_keywords": {
"type": "keyword_marker",
"keywords": []
}
},
"analyzer": {
"spanish_analyzer": {
"type": "custom",
"tokenizer": "standard",
"filter": [
"lowercase",
"spanish_stop",
"spanish_keywords",
"spanish_stemmer"
]
}
}
}
},
"mappings": {
"properties": {
"content": {
"type": "text",
"analyzer": "spanish_analyzer"
}
}
}
}
生成的词元
使用以下请求检查使用该分析器生成的词元
POST /spanish-index/_analyze
{
"field": "content",
"text": "Los estudiantes estudian en universidades españolas. Sus números son 123456."
}
响应包含生成的词元
{
"tokens": [
{
"token": "estudiant",
"start_offset": 4,
"end_offset": 15,
"type": "<ALPHANUM>",
"position": 1
},
{
"token": "estudian",
"start_offset": 16,
"end_offset": 24,
"type": "<ALPHANUM>",
"position": 2
},
{
"token": "universidad",
"start_offset": 28,
"end_offset": 41,
"type": "<ALPHANUM>",
"position": 4
},
{
"token": "español",
"start_offset": 42,
"end_offset": 51,
"type": "<ALPHANUM>",
"position": 5
},
{
"token": "numer",
"start_offset": 57,
"end_offset": 64,
"type": "<ALPHANUM>",
"position": 7
},
{
"token": "123456",
"start_offset": 69,
"end_offset": 75,
"type": "<NUM>",
"position": 9
}
]
}