University of Freiburg: Algorithms and Data Structures Group

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. I...

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More Accurate Question Answering on Freebase

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

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A collection of large question answering datasets

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

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

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Convert OpenStreetMap (OSM) data to RDF Turtle, including the object geometries and predicates geo:sfContains and geo:sfIntersects. Weekly updated downloads for the whole planet (~ 40 billion triples)...

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Entity linking evaluation and analysis tool

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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, synonym...

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