Dr. Jens Lehmann

Dr. Jens Lehmann
Depiction of Dr. Jens Lehmann
Address Work
Augustusplatz 10, Room P631, 04109 Leipzig
Email Office
Phone Work
+49-341-97-32260
Fax Work
+49-341-97-32329

@Google Scholar Homepage

Current Projects

  • AskNowAskNow is a Question Answering (QA) system for RDF datasets.
  • AutoSPARQLConvert a natural language expression to a SPARQL query
  • BDEBig Data Europe
  • CubeQAQuestion Answering on Statistical Linked Data
  • DBpediaQuerying Wikipedia like a Semantic Database
  • DBpediaDQUser-driven quality evaluation of DBpedia
  • DBpediaDQCrowdCrowdsourcing DBpedia Quality Assessment
  • DEERRDF Data Extraction and Enrichment Framework
  • DeFactoDeep Fact Validation
  • DEQADeep Web Extraction for Question Answering
  • DL-Learnera tool for supervised Machine Learning in OWL and Description Logics
  • FTSRDF Version of the Financial Transparency System of the European Commission
  • GeoKnowMaking the Web an Exploratory for Geospatial Knowledge
  • GeoLiftSpatial mapping framework for enriching RDF datasets with Geo-spatial information
  • GOLDGenerating Ontologies from Linked Data
  • LIMESLInk discovery framework for MEtric Spaces
  • LinkedGeoDataadds a spatial dimension to the Web of Data
  • LOD2Creating Knowledge out of Interlinked Data
  • LODStatsa statement-stream-based approach for gathering comprehensive statistics about RDF datasets
  • MEX VocabularyA Light-Weight Interchange Format for Machine Learning Experiments
  • NIF4OGGDNatural Language Interchange Format for Open German Governmental Data
  • NLP2RDFConverting NLP tool output to RDF
  • OREA tool for the enrichment, repair and validation of OWL based knowledge bases.
  • RDFUnitan RDF Unit-Testing suite
  • ReDD-ObservatoryUsing the Web of Data for Evaluating the Research-Disease Disparity
  • SAIM(Semi-)Automatic Instance Matcher
  • SemMap
  • SML-BenchA Benchmark for Symbolic Supervised Machine Learning from Expressive Structured Data
  • SPARQL2NLconverting SPARQL queries to natural language
  • SparqlAnalyticsI Know What You Did Last Query
  • Sparqlifya SPARQL-SQL rewriter
  • TripleCheckMateCrowdsourcing the evaluation of Linked Data
  • VeriLinksverifying links in an arbitrary linkset

Past Projects

  • LATCLOD Around-the-Clock
  • LE4SWRegional Technology Platform of Social Semantic Collaboration
  • OntoWiki.euSocial Semantic Collaboration for EKM, E-Learning & E-Tourism
  • SoftWikiSemantics- and Community-Based Requirements Engineering

Publications

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News

AKSW Colloquium, 23.05.2016, Instance Matching and RDF Dataset Similarity ( 2016-05-23T14:24:06+02:00 Michael Roeder)

2016-05-23T14:24:06+02:00 Michael Roeder

In the incoming colloquium, Mofeed Hassan will present the paper “Semi-supervised Instance Matching Using Boosted Classifiers” from Kejriwal et al., published in the proceedings of ESWC 2015 [PDF]. Read more about "AKSW Colloquium, 23.05.2016, Instance Matching and RDF Dataset Similarity"

AKSW Colloquium, 09.05.2016: Hebrew MMoOn inventory, federated SPARQL query processing ( 2016-05-03T13:57:03+02:00 by Bettina Klimek)

2016-05-03T13:57:03+02:00 by Bettina Klimek

In this week’s colloquium Bettina Klimek will give a practice talk of the paper ‘Creating Linked Data Morphological Language Resources with MMoOn – The Hebrew Morpheme Inventory‘, which she will present at the LREC conference 2016, 23-28 May 2016, Slovenia, … Continue reading → Read more about "AKSW Colloquium, 09.05.2016: Hebrew MMoOn inventory, federated SPARQL query processing"

AKSW Colloquium, 25.04.2016, DISPONTE, Workbench for Big Data Dev ( 2016-04-22T16:05:08+02:00 by Mohamed Sherif)

2016-04-22T16:05:08+02:00 by Mohamed Sherif

In this colloquium, Frank Nietzsche will present his master thesis titled “Game Theory- distributed solving” Game theory analyzes the behavior of individuals in complex situations. One popular game in Europe and North America with such a complex situation is Skat. Read more about "AKSW Colloquium, 25.04.2016, DISPONTE, Workbench for Big Data Dev"

AKSW Colloquium, 18.04.2016, DISPONTE, Workbench for Big Data Dev ( 2016-04-18T10:17:10+02:00 by Patrick Westphal)

2016-04-18T10:17:10+02:00 by Patrick Westphal

In this week’s Colloquium, today 18th of April at 3 PM, Patrick Westphal will present the paper ‘Probabilistic Description Logics under the Distribution Semantics‘ by Riguzzi et. al. Abstract Representing uncertain information is crucial for modeling real world domains. Read more about "AKSW Colloquium, 18.04.2016, DISPONTE, Workbench for Big Data Dev"

AKSW Colloquium, 11.04.2016, METEOR with DBnary ( 2016-04-11T09:07:18+02:00 by Ricardo Usbeck)

2016-04-11T09:07:18+02:00 by Ricardo Usbeck

In this week’s Colloquium, today 11th of April at 3 PM, Diego Moussallem will present the paper by Zied Elloumi et al. titled “METEOR for Multiple Target Languages using DBnary.” [PDF]. Read more about "AKSW Colloquium, 11.04.2016, METEOR with DBnary"