PISA

pisa

PISA: Performant Indexes and Search for Academia

ciff

The inverted index exchange format as defined as part of the Open-Source IR Replicability Challenge (OSIRRC) initiative

Porter2

Porter2 stemming library

pypisa

A Python interface to the PISA IR engine

ecir19-bisection

Experiments for "Compressing Inverted Indexes with Recursive Graph Bisection: A Reproducibility Study".

taily

Implementation of Taily algorithm as described by Aly et al. in the 2013 paper "Taily: shard selection using the tail of score distributions."

topk-threshold-estimation

Experiments for "A Comparison of Top-k Threshold Estimation Techniques for Disjunctive Query Processing"

warcpp

A C++ parser for the Web Archive (WARC) format.

accumulator

Benchmarking several score accumulators used in IR

BMP

Faster Learned Sparse Retrieval with Block-Max Pruning. ACM SIGIR 2024.

KrovetzStemmer

Krovetz stemming library

raxpp

C++ bindings for rax: https://github.com/antirez/rax

tokenizer

docker

Docker image for PISA

trecpp

A C++ parser for the TREC document format.

wapopp

A C++ parser for the Washington Post (WaPo) format.

ciff-hub

Hosting some useful CIFFs

mln

An implementation of the Most-Likely-Next algorithm

nyt-corpus-reader

A parser and MongoDB backed store for searching the New York Times Annotated Corpus (LDC2008T19)

nytpp

A C++ parser for the New York Times (NYT) format.

pisa-engine.github.io

pisa-jr

Minimal implementation of PISA in Rust

pyciff

Python bindings for CIFF library at https://github.com/pisa-engine/ciff

search-benchmark-game

standard-benchmark

Standard speed regression test for PISA

trec-text-rs

TREC Text collection format parser