python排序算法的库_BM25检索排序算法变体实现汇总

作者：小桥流水78 | 2024-08-13 00:20:33

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python 中的 bm25okapi获取索引

Rank-BM25: A two line search engine

A collection of algorithms for querying a set of documents and returning the ones most relevant to the query. The most common use case for these algorithms is, as you might have guessed, to create search engines.

So far the algorithms that have been implemented are:

Okapi BM25

BM25L

BM25+

BM25-Adpt

BM25T

These algorithms were taken from this paper, which gives a nice overview of each method, and also benchmarks them against each other. A nice inclusion is that they compare different kinds of preprocessing like stemming vs no-stemming, stopword removal or not, etc. Great read if you're new to the topic.

Installation

The easiest way to install this package is through pip, using

pip install rank_bm25

If you want to be sure you're getti

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