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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++ 390 47

  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++ 18 5

  4. pfaedle pfaedle Public

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

    C++ 202 29

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

    A collection of large question answering datasets

    327 35

  6. pdfact pdfact Public

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

    Java 72 11

Repositories

Showing 10 of 63 repositories
  • 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++ 390 Apache-2.0 47 91 39 Updated Oct 15, 2024
  • ad-freiburg/qlever-petrimaps’s past year of commit activity
    C++ 11 3 3 3 Updated Oct 15, 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 Oct 15, 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++ 22 GPL-3.0 7 13 5 Updated Oct 14, 2024
  • ad-freiburg/sparql-conformance’s past year of commit activity
    Python 0 1 0 0 Updated Oct 14, 2024
  • WEXEA Public Forked from mjstrobl/WEXEA

    Wikipedia EXhaustive Entity Annotator (LREC 2020)

    ad-freiburg/WEXEA’s past year of commit activity
    Python 0 Apache-2.0 2 0 0 Updated Oct 11, 2024
  • ad-freiburg/spatialjoin’s past year of commit activity
    C++ 2 0 0 1 Updated Oct 11, 2024
  • util Public

    Small library of utility functions

    ad-freiburg/util’s past year of commit activity
    C++ 0 0 0 1 Updated Oct 11, 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 0 0 0 0 Updated Oct 10, 2024
  • ad-freiburg/qlever-control’s past year of commit activity
    Python 24 Apache-2.0 13 13 9 Updated Oct 9, 2024

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