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    30 repositories

    • pisa-engine.github.io

      Public
      JavaScript
      •0•0•0•0•Updated Mar 29, 2026Mar 29, 2026

    • pisa

      Public
      PISA: Performant Indexes and Search for Academia
      searchsearch-engineinformation-retrieval
      searchsearch-engineinformation-retrievalinverted-index
      C++
      •
      Apache License 2.0
      •73•1k•58•11•Updated Mar 29, 2026Mar 29, 2026

    • ciff-hub

      Public
      Hosting some useful CIFFs
      Apache License 2.0
      •0•3•0•0•Updated Jan 30, 2026Jan 30, 2026

    • BMP

      Public
      Faster Learned Sparse Retrieval with Block-Max Pruning. ACM SIGIR 2024.
      Rust
      •
      Apache License 2.0
      •4•35•0•2•Updated Jan 14, 2026Jan 14, 2026

    • ciff

      Public
      The inverted index exchange format as defined as part of the Open-Source IR Replicability Challenge (OSIRRC) initiative
      Rust
      •
      Apache License 2.0
      •4•11•1•2•Updated Aug 6, 2025Aug 6, 2025

    • sprawl

      Public
      Fast and Effective Early Termination for Simple Ranking Functions
      Apache License 2.0
      •0•2•0•0•Updated Jul 7, 2025Jul 7, 2025

    • kentro

      Public
      High-Performance K-Means Clustering Library
      Rust
      •3•41•1•0•Updated Jul 6, 2025Jul 6, 2025

    • DeeperImpact

      Public
      Research on Learned Sparse Retrieval Derived from Transformers-based Ranking for Information Retrieval
      Python
      •8•2•0•3•Updated Jun 23, 2025Jun 23, 2025

    • ConstBERT

      Public
      1•13•1•0•Updated Jun 5, 2025Jun 5, 2025

    • wapopp

      Public
      A C++ parser for the Washington Post (WaPo) format.
      C++
      •
      Apache License 2.0
      •0•1•0•0•Updated Jul 28, 2024Jul 28, 2024

    • Porter2

      Public
      Porter2 stemming library
      librarycppstemmer
      librarycppstemmerstemmingstemming-algorithm
      C++
      •
      Apache License 2.0
      •4•5•0•0•Updated Apr 8, 2024Apr 8, 2024

    • taily

      Public
      Implementation of Taily algorithm as described by Aly et al. in the 2013 paper "Taily: shard selection using the tail of score distributions."
      C++
      •
      MIT License
      •2•2•1•0•Updated Aug 4, 2023Aug 4, 2023

    • standard-benchmark

      Public
      Standard speed regression test for PISA
      Rust
      •0•1•5•5•Updated Jan 20, 2023Jan 20, 2023

    • pyciff

      Public
      Python bindings for CIFF library at https://github.com/pisa-engine/ciff
      Python
      •
      Apache License 2.0
      •0•1•0•0•Updated Mar 7, 2022Mar 7, 2022

    • pypisa

      Public
      A Python interface to the PISA IR engine
      Python
      •
      Apache License 2.0
      •1•3•2•1•Updated Sep 26, 2021Sep 26, 2021

    • warcpp

      Public
      A C++ parser for the Web Archive (WARC) format.
      parserwarc
      parserwarc
      C++
      •
      Apache License 2.0
      •0•3•0•0•Updated Aug 29, 2021Aug 29, 2021

    • topk-threshold-estimation

      Public
      Experiments for "A Comparison of Top-k Threshold Estimation Techniques for Disjunctive Query Processing"
      Apache License 2.0
      •0•2•0•0•Updated Oct 20, 2020Oct 20, 2020

    • accumulator

      Public
      Benchmarking several score accumulators used in IR
      C++
      •0•1•0•0•Updated Apr 2, 2020Apr 2, 2020

    • search-benchmark-game

      Public
      Rust
      •61•0•0•0•Updated Apr 1, 2020Apr 1, 2020

    • trecpp

      Public
      A C++ parser for the TREC document format.
      C++
      •
      Apache License 2.0
      •0•0•0•0•Updated Mar 18, 2020Mar 18, 2020

    • mln

      Public
      An implementation of the Most-Likely-Next algorithm
      C++
      •
      Apache License 2.0
      •0•0•0•0•Updated Mar 4, 2020Mar 4, 2020

    • tokenizer

      Public
      tokenizer
      tokenizer
      C++
      •
      Apache License 2.0
      •1•1•0•0•Updated Feb 28, 2020Feb 28, 2020

    • pisa-jr

      Public
      Minimal implementation of PISA in Rust
      Rust
      •
      Apache License 2.0
      •0•0•0•1•Updated Feb 26, 2020Feb 26, 2020

    • trec-text-rs

      Public
      TREC Text collection format parser
      Rust
      •
      Apache License 2.0
      •0•0•0•0•Updated Feb 25, 2020Feb 25, 2020

    • nyt-corpus-reader

      Public
      A parser and MongoDB backed store for searching the New York Times Annotated Corpus (LDC2008T19)
      Python
      •
      Apache License 2.0
      •2•0•0•0•Updated May 4, 2019May 4, 2019

    • nytpp

      Public
      A C++ parser for the New York Times (NYT) format.
      Apache License 2.0
      •0•0•0•0•Updated Apr 30, 2019Apr 30, 2019

    • KrovetzStemmer

      Public
      Krovetz stemming library
      librarycppstemmer
      librarycppstemmerstemmingstemming-algorithm
      C++
      •
      Apache License 2.0
      •0•1•1•0•Updated Apr 10, 2019Apr 10, 2019

    • ecir19-bisection

      Public
      Experiments for "Compressing Inverted Indexes with Recursive Graph Bisection: A Reproducibility Study".
      C++
      •0•3•0•0•Updated Apr 9, 2019Apr 9, 2019

    • docker

      Public
      Docker image for PISA
      dockerdocker-imagepisa
      dockerdocker-imagepisa
      Dockerfile
      •
      Apache License 2.0
      •1•0•1•0•Updated Apr 3, 2019Apr 3, 2019

    • raxpp

      Public
      C++ bindings for rax: https://github.com/antirez/rax
      CMake
      •
      Apache License 2.0
      •0•2•3•0•Updated Jan 28, 2019Jan 28, 2019
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