小写分词器

编辑

lowercase 分词器,类似于 letter 分词器,会在遇到非字母字符时将文本分割成词项,但它还会将所有词项转换为小写。它在功能上等同于 letter 分词器lowercase 标记过滤器 的组合,但效率更高,因为它一步完成这两个步骤。

示例输出

编辑
resp = client.indices.analyze(
    tokenizer="lowercase",
    text="The 2 QUICK Brown-Foxes jumped over the lazy dog's bone.",
)
print(resp)
response = client.indices.analyze(
  body: {
    tokenizer: 'lowercase',
    text: "The 2 QUICK Brown-Foxes jumped over the lazy dog's bone."
  }
)
puts response
const response = await client.indices.analyze({
  tokenizer: "lowercase",
  text: "The 2 QUICK Brown-Foxes jumped over the lazy dog's bone.",
});
console.log(response);
POST _analyze
{
  "tokenizer": "lowercase",
  "text": "The 2 QUICK Brown-Foxes jumped over the lazy dog's bone."
}

以上句子将生成以下词项

[ the, quick, brown, foxes, jumped, over, the, lazy, dog, s, bone ]

配置

编辑

lowercase 分词器不可配置。