bm25

package module

v1.0.0 Latest Latest Go to latest Published: Sep 17, 2020 License: MIT Imports: 3 Imported by: 1

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bm25 is a scoring function that helps with information retrieval

package bm25 is a lingo-friendly BM25 library. BM25 is a scoring function that relies on TFIDF, and is useful for document retrieval

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type DocScore struct {
	ID    int
	Score float64
}

DocScore is a tuple of the document ID and a score

type DocScores []DocScore

DocScores is a list of DocScore

func BM25(tf *tfidf.TFIDF, query tfidf.Document, docs []tfidf.Document, k1, b float64) DocScores

BM25 is the scoring function.

k1 should be between 1.2 and 2. b should be around 0.75

func (ds DocScores) Len() int

func (ds DocScores) Less(i, j int) bool

func (ds DocScores) Swap(i, j int)