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xhluca/
bm25s-webis-touche2020-index

Name: bm25s-webis-touche2020-index
Availability: InStock

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BM25S Index

This is a BM25S index created with the bm25s library (version 0.0.1dev0), an ultra-fast implementation of BM25. It can be used for lexical retrieval tasks.

BM25S GitHub Repository

Installation

You can install the bm25s library with pip:

bash

pip install "bm25s==0.1.3"

# Include extra dependencies like stemmer
pip install "bm25s[full]==0.1.3"

# For huggingface hub usage
pip install huggingface_hub

Loading a `bm25s` index

You can use this index for information retrieval tasks. Here is an example:

python

import bm25s
from bm25s.hf import BM25HF

# Load the index
retriever = BM25HF.load_from_hub("xhluca/bm25s-webis-touche2020-index", revision="main")

# You can retrieve now
query = "a cat is a feline"
results = retriever.retrieve(query, k=3)

Saving a `bm25s` index

You can save a bm25s index to the Hugging Face Hub. Here is an example:

python

import bm25s
from bm25s.hf import BM25HF

# Create a BM25 index and add documents
retriever = BM25HF()
corpus = [
    "a cat is a feline and likes to purr",
    "a dog is the human's best friend and loves to play",
    "a bird is a beautiful animal that can fly",
    "a fish is a creature that lives in water and swims",
]
corpus_tokens = bm25s.tokenize(corpus)
retriever.index(corpus_tokens)

token = None  # You can get a token from the Hugging Face website
retriever.save_to_hub("xhluca/bm25s-webis-touche2020-index", token=token)

Stats

This dataset was created using the following data:

Statistic	Value
Number of documents	382545
Number of tokens	41412128
Average tokens per document	108.25426551124704

Parameters

The index was created with the following parameters:

Parameter	Value
k1	`1.5`
b	`0.75`
delta	`0.5`
method	`lucene`
idf method	`lucene`

xhluca/bm25s-webis-touche2020-index