狮身人面像和词形

Question

如何让 Sphinx 将“auto”和“car”识别为相似词？

让我们想象一下我有三个数据库记录

Andy likes to drive auto.
Mary don't like to drive car.
Bob is going to buy automobile.

这是示例查询及其结果...

query: car
result: Mary don't like to drive car.
-------------------------------------
query: auto
result: Andy likes to drive auto.
-------------------------------------
query: automobile
Bob is going to buy automobile.

..但我希望狮身人面像返回...

query: car
result:
Andy likes to drive auto.
Mary don't like to drive car.
Bob is going to buy automobile.
-------------------------------------
query: auto
result:
Andy likes to drive auto.
Mary don't like to drive car.
Bob is going to buy automobile.
-------------------------------------
query: automobile
result:
Andy likes to drive auto.
Mary don't like to drive car.
Bob is going to buy automobile.

我知道 Sphinx 有 stowords，但是我应该在 stopwords 字典中加入什么才能让 Sphinx 这么想呢？

谢谢。

Answer 1

您所要做的就是在您的 .conf 文件中为 sphinx 提供格式正确的 wordforms 文本文件。

在此处找到的文档：http://www.sphinxsearch.com/docs/manual-0.9.9.html#conf-wordforms

auto > car
automobile > car
four-wheeled-vehicle-intended-for-public-roads > car
cars > car

Answer 2

让我举一个词形形态的例子，其中包含“gearing”和“leverage”这两个词，因为这两个词在金融领域是相同的术语，应该被视为同义词（两个词的含义都是“金融杠杆”）。

最初，您的“wordforms.txt”文件应该包含它们，如下所示：

gear > gear
geared > gear
gearing > gear
gears > gear
……
leverage > leverage
leveraged > leverage
leverages > leverage
leveraging > leverage

表示原来这两个词没有联系。为了解决这个问题，您应该以这种方式修改“wordforms.txt”的内容：

gear > leverage
geared > leverage
gearing > leverage
gears > leverage
……
leveraged > leverage
leverages > leverage
leveraging > leverage

此编辑将它们（以及它们的所有形式）联系起来。编辑“wordforms.txt”文件后，您必须保存它并重新索引您的索引以应用更改。

现在，当您搜索“gearing”或“leverage”时，您的结果将包含这两个词及其所有形态形式。