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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++ 446 54

  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++ 19 5

  4. pfaedle pfaedle Public

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

    C++ 209 30

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

    A collection of large question answering datasets

    347 36

  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 64 repositories
  • loom Public

    Software suite for the automated generation of geographically correct or schematic transit maps.

    ad-freiburg/loom’s past year of commit activity
    C++ 154 GPL-3.0 15 9 0 Updated Dec 29, 2024
  • qlever-control Public
    ad-freiburg/qlever-control’s past year of commit activity
    Python 33 Apache-2.0 14 18 8 Updated Dec 24, 2024
  • wiki_entity_linker Public
    ad-freiburg/wiki_entity_linker’s past year of commit activity
    JavaScript 2 Apache-2.0 0 0 0 Updated Dec 23, 2024
  • osm2rdf Public

    Convert OpenStreetMap (OSM) data to RDF Turtle, including the object geometries and predicates ogc:sfContains, ogc:sfCovers, ogc:sfIntersects, ogc:sfTouches, ogc:sfCrosses, ogc:sfEquals, and ogc:sfOverlaps. Weekly updated downloads for the whole planet (~ 80 billion triples) and per country.

    ad-freiburg/osm2rdf’s past year of commit activity
    C++ 23 GPL-3.0 7 10 8 Updated Dec 20, 2024
  • text-utils Public

    Text utilities for Deep NLP

    ad-freiburg/text-utils’s past year of commit activity
    Rust 5 Apache-2.0 1 1 0 Updated Dec 20, 2024
  • natural-entity-types Public

    Methods for determining the most natural type of a Wikidata entity

    ad-freiburg/natural-entity-types’s past year of commit activity
    Python 1 0 0 0 Updated Dec 19, 2024
  • 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++ 446 Apache-2.0 54 109 37 Updated Dec 18, 2024
  • qlever-petrimaps Public
    ad-freiburg/qlever-petrimaps’s past year of commit activity
    C++ 11 3 6 2 Updated Dec 17, 2024
  • spatialjoin Public
    ad-freiburg/spatialjoin’s past year of commit activity
    C++ 2 0 0 1 Updated Dec 17, 2024
  • elevant Public

    Entity linking evaluation and analysis tool

    ad-freiburg/elevant’s past year of commit activity
    Python 20 Apache-2.0 1 1 0 Updated Dec 13, 2024
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