8000 University of Freiburg: Algorithms and Data Structures Group · GitHub
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@ad-freiburg

University of Freiburg: Algorithms and Data Structures Group

Code from our various research projects and publications

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  1. qlever qlever Public

    Very fast SPARQL Engine, which can handle very large knowledge graphs like the complete Wikidata, offers context-sensitive autocompletion for SPARQL queries, and allows combination with text search…

    C++ 558 75

  2. aqqu aqqu Public

    More Accurate Question Answering on Freebase

    Python 107 36

  3. completesearch completesearch Public

    Search engine for semi-structured data (text and structured data) that provides all kinds of intelligent search features (keyword search, autocompletion, faceted search, error-tolerant search, syno…

    C++ 23 6

  4. pfaedle pfaedle Public

    Precise map-matching for public transit feeds. Generates high-quality GTFS shapes from OSM data.

    C++ 231 31

  5. large-qa-datasets large-qa-datasets Public

    A collection of large question answering datasets

    383 38

  6. pdfact pdfact Public

    A basic tool that extracts the structure from the PDF files of scientific articles.

    Java 74 11

Repositories

Showing 10 of 66 repositories
  • sparqloscope Public

    Sparqloscope: A generic benchmark for comprehensive performance evaluation of SPARQL engines

    ad-freiburg/sparqloscope’s past year of commit activity
    Python 1 Apache-2.0 0 0 2 Updated May 14, 2025
  • qlever Public

    Very fast SPARQL Engine, which can handle very large knowledge graphs like the complete Wikidata, offers context-sensitive autocompletion for SPARQL queries, and allows combination with text search. It's faster than engines like Blazegraph or Virtuoso, especially for queries involving large result sets.

    ad-freiburg/qlever’s past year of commit activity
    C++ 558 Apache-2.0 75 109 67 Updated May 13, 2025
  • osm-live-updates Public

    Update SPARQL endpoints with OpenStreetMap data (converted via osm2rdf) by processing OsmChange files

    ad-freiburg/osm-live-updates’s past year of commit activity
    C++ 0 GPL-3.0 1 0 0 Updated May 13, 2025
  • qlever-control Public
    ad-freiburg/qlever-control’s past year of commit activity
    Python 42 Apache-2.0 21 34 16 Updated May 13, 2025
  • pfaedle Public

    Precise map-matching for public transit feeds. Generates high-quality GTFS shapes from OSM data.

    ad-freiburg/pfaedle’s past year of commit activity
    C++ 231 GPL-3.0 31 11 2 Updated May 12, 2025
  • spatialjoin Public

    Compute spatial self-joins (on intersects, contains, covers, touches, crosses, overlaps, equals) on large collections of WKT geometries. Can handle the complete OSM data as input.

    ad-freiburg/spatialjoin’s past year of commit activity
    C++ 3 0 0 2 Updated May 8, 2025
  • qlever-ui Public

    A user interface for QLever

    ad-freiburg/qlever-ui’s past year of commit activity
    JavaScript 35 Apache-2.0 18 41 (1 issue needs help) 8 Updated May 3, 2025
  • sparql-conformance Public

    SPARQL test suite (https://www.w3.org/2009/sparql/docs/tests/) for QLEVER (https://github.com/ad-freiburg/qlever)

    ad-freiburg/sparql-conformance’s past year of commit activity
    Python 1 2 4 0 Updated Apr 25, 2025
  • ad-blog Public

    AD Blog Posts (currently: student project reports)

    ad-freiburg/ad-blog’s past year of commit activity
    HTML 0 38 1 5 Updated Apr 17, 2025
  • qlever-petrimaps Public
    ad-freiburg/qlever-petrimaps’s past year of commit activity
    C++ 15 3 4 2 Updated Apr 17, 2025
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