project-description.md

Pyserini provides a simple Python interface to the Anserini IR toolkit via pyjnius.

Installation

Install via PyPI

pip install pyserini

Usage

Here's a sample pre-built index on TREC Disks 4 & 5 to play with (used in the TREC 2004 Robust Track):

wget https://git.uwaterloo.ca/jimmylin/anserini-indexes/raw/master/index-robust04-20191213.tar.gz
tar xvfz index-robust04-20191213.tar.gz

Use the SimpleSearcher for searching:

from pyserini.search import pysearch

searcher = pysearch.SimpleSearcher('index-robust04-20191213/')
hits = searcher.search('hubble space telescope')

# Print the first 10 hits:
for i in range(0, 10):
    print(f'{i+1:2} {hits[i].docid:15} {hits[i].score:.5f}')

# Grab the actual text:
hits[0].raw

For additional information, please refer to the Pyserini repository.