Jens Lehmann - researchr alias

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Viewing Publication 1 - 100 from 172

2022

Usability evaluation of the Computer-Based Health Evaluation System (CHES) eDiary for patients with faecal incontinence: a pilot studyJens Lehmann, Isabel Schreyer, David Riedl, Michael Tschuggnall, Johannes M. Giesinger, Marjiana Ninkovic, Marcus Huth, Irmgard Kronberger, Gerhard Rumpold, Bernhard Holzner. midm, 22(1):81, 2022. [doi]

2019

New label noise injection methods for the evaluation of noise filtersLuís P. F. Garcia, Jens Lehmann, André C. P. L. F. de Carvalho, Ana Carolina Lorena. kbs, 163:693-704, 2019. [doi]

Pay for Performance in Electronic Data Capture for Clinical Trials and Medical RegistriesSattar Rahimbayli, Jens Lehmann, Thomas M. Deserno. efmi-stc 2019: 221-225 [doi]

2018

Generating SPARQL Query Containment Benchmarks Using the SQCFrameworkMuhammad Saleem 0002, Qaiser Mehmood, Claus Stadler, Jens Lehmann, Axel-Cyrille Ngonga Ngomo. semweb 2018: [doi]

Detecting Linked Data quality issues via crowdsourcing: A DBpedia studyMaribel Acosta, Amrapali Zaveri, Elena Simperl, Dimitris Kontokostas, Fabian Flöck, Jens Lehmann. semweb, 9(3):303-335, 2018. [doi]

Joint Entity and Relation Linking Using EARLDebayan Banerjee, Mohnish Dubey, Debanjan Chaudhuri, Jens Lehmann. semweb 2018: [doi]

DL-Learner Structured Machine Learning on Semantic Web DataLorenz Bühmann, Jens Lehmann, Patrick Westphal, Simon Bin. WWW 2018: 467-471 [doi]

Improving Response Selection in Multi-Turn Dialogue Systems by Incorporating Domain KnowledgeDebanjan Chaudhuri, Agustinus Kristiadi, Jens Lehmann, Asja Fischer. conll 2018: 497-507 [doi]

A Question Answering System on Regulatory DocumentsDiego Collarana, Timm Heuss, Jens Lehmann, Ioanna Lytra, Gaurav Maheshwari, Rostislav Nedelchev, Thorsten Schmidt, Priyansh Trivedi. jurix 2018: 41-50 [doi]

EARL: Joint Entity and Relation Linking for Question Answering over Knowledge GraphsMohnish Dubey, Debayan Banerjee, Debanjan Chaudhuri, Jens Lehmann. semweb 2018: 108-126 [doi]

Toward Veracity Assessment in RDF Knowledge Bases: An Exploratory AnalysisDiego Esteves, Anisa Rula, Aniketh Janardhan Reddy, Jens Lehmann. jdiq, 9(3), 2018. [doi]

Profiting from Kitties on Ethereum: Leveraging Blockchain RDF with SANSADamien Graux, Gezim Sejdiu, Hajira Jabeen, Jens Lehmann, Danning Sui, Dominik Muhs, Johannes Pfeffer. i-semantics 2018: [doi]

Wikidata through the eyes of DBpediaAli Ismayilov, Dimitris Kontokostas, Sören Auer, Jens Lehmann, Sebastian Hellmann. semweb, 9(4):493-503, 2018. [doi]

Divided We Stand Out! Forging Cohorts fOr Numeric Outlier Detection in Large Scale Knowledge Graphs (CONOD)Hajira Jabeen, Rajjat Dadwal, Gezim Sejdiu, Jens Lehmann. ekaw 2018: 534-548 [doi]

Spezifikation projektspezifischer SoftwareJens Lehmann. pearl 2018: 69-78 [doi]

KnIGHT: Mapping Privacy Policies to GDPRNajmeh Mousavi Nejad, Simon Scerri, Jens Lehmann. ekaw 2018: 258-272 [doi]

DistLODStats: Distributed Computation of RDF Dataset StatisticsGezim Sejdiu, Ivan Ermilov, Jens Lehmann, Mohamed Nadjib Mami. semweb 2018: 206-222 [doi]

STATisfy Me: What Are My Stats?Gezim Sejdiu, Ivan Ermilov, Mohamed Nadjib Mami, Jens Lehmann. semweb 2018: [doi]

Why Reinvent the Wheel: Let's Build Question Answering Systems TogetherKuldeep Singh, Arun Sethupat Radhakrishna, Andreas Both, Saeedeh Shekarpour, Ioanna Lytra, Ricardo Usbeck, Akhilesh Vyas, Akmal Khikmatullaev, Dharmen Punjani, Christoph Lange 0002, Maria-Esther Vidal, Jens Lehmann, Sören Auer. WWW 2018: 1247-1256 [doi]

Structured Knowledge on the Web 7.0Steffen Staab, Jens Lehmann, Ruben Verborgh. WWW 2018: 885-886 [doi]

Efficiently Pinpointing SPARQL Query ContainmentsClaus Stadler, Muhammad Saleem 0002, Axel-Cyrille Ngonga Ngomo, Jens Lehmann. ICWE 2018: 210-224 [doi]

Two for one: querying property graph databases using SPARQL via gremlinatorHarsh Thakkar, Dharmen Punjani, Jens Lehmann, Sören Auer. grades 2018: [doi]

SPIRIT: A Semantic Transparency and Compliance StackPatrick Westphal, Javier D. Fernández, Sabrina Kirrane, Jens Lehmann. i-semantics 2018: [doi]

Deep Query Ranking for Question Answering over Knowledge BasesHamid Zafar, Giulio Napolitano, Jens Lehmann. pkdd 2019: 635-638 [doi]

Formal Query Generation for Question Answering over Knowledge BasesHamid Zafar, Giulio Napolitano, Jens Lehmann. esws 2018: 714-728 [doi]

2017

SQCFramework: SPARQL Query Containment Benchmark Generation FrameworkMuhammad Saleem 0002, Claus Stadler, Qaiser Mehmood, Jens Lehmann, Axel-Cyrille Ngonga Ngomo. kcap 2017: [doi]

Implementing scalable structured machine learning for big data in the SAKE projectSimon Bin, Patrick Westphal, Jens Lehmann, Axel Ngonga. bigdataconf 2017: 1400-1407 [doi]

Iguana: A Generic Framework for Benchmarking the Read-Write Performance of Triple StoresFelix Conrads, Jens Lehmann, Muhammad Saleem 0002, Mohamed Morsey, Axel-Cyrille Ngonga Ngomo. semweb 2017: 48-65 [doi]

Benchmarking RDF Storage Solutions with IGUANAFelix Conrads, Jens Lehmann, Muhammad Saleem 0002, Axel-Cyrille Ngonga Ngomo. semweb 2017: [doi]

Managing Lifecycle of Big Data ApplicationsIvan Ermilov, Axel-Cyrille Ngonga Ngomo, Aad Versteden, Hajira Jabeen, Gezim Sejdiu, Giorgos Argyriou, Luigi Selmi, Jürgen Jakobitsch, Jens Lehmann. kesw 2017: 263-276 [doi]

The Tale of Sansa SparkIvan Ermilov, Jens Lehmann, Gezim Sejdiu, Lorenz Bühmann, Patrick Westphal, Claus Stadler, Simon Bin, Nilesh Chakraborty, Henning Petzka, Muhammad Saleem 0002, Axel-Cyrille Ngonga Ngomo, Hajira Jabeen. semweb 2017: [doi]

Named Entity Recognition in Twitter Using Images and TextDiego Esteves, Rafael Peres, Jens Lehmann, Giulio Napolitano. ICWE 2018: 191-199 [doi]

LOG4MEX: a library to export machine learning experimentsDiego Esteves, Diego Moussallem, Tommaso Soru, Ciro Baron Neto, Jens Lehmann, Axel-Cyrille Ngonga Ngomo, Julio Cesar Duarte. webi 2017: 139-145 [doi]

Survey on challenges of Question Answering in the Semantic WebKonrad Höffner, Sebastian Walter, Edgard Marx, Ricardo Usbeck, Jens Lehmann, Axel-Cyrille Ngonga Ngomo. semweb, 8(6):895-920, 2017. [doi]

Big Data EuropeHajira Jabeen, Phil Archer, Simon Scerri, Aad Versteden, Ivan Ermilov, Giannis Mouchakis, Jens Lehmann, Sören Auer. edbt 2017: [doi]

LDOW2017: 10th Workshop on Linked Data on the WebJens Lehmann, Sören Auer, Sarven Capadisli, Krzysztof Janowicz, Christian Bizer, Tom Heath, Aidan Hogan, Tim Berners-Lee. WWW 2017: 1679-1680 [doi]

Distributed Semantic Analytics Using the SANSA StackJens Lehmann, Gezim Sejdiu, Lorenz Bühmann, Patrick Westphal, Claus Stadler, Ivan Ermilov, Simon Bin, Nilesh Chakraborty, Muhammad Saleem 0002, Axel-Cyrille Ngonga Ngomo, Hajira Jabeen. semweb 2017: 147-155 [doi]

Neural Network-based Question Answering over Knowledge Graphs on Word and Character LevelDenis Lukovnikov, Asja Fischer, Jens Lehmann, Sören Auer. WWW 2017: 1211-1220 [doi]

How to Revert Question Answering on Knowledge GraphsGaurav Maheshwari, Mohnish Dubey, Priyansh Trivedi, Jens Lehmann. semweb 2017: [doi]

SimDoc: Topic Sequence Alignment based Document Similarity FrameworkGaurav Maheshwari, Priyansh Trivedi, Harshita Sahijwani, Kunal Jha, Sourish Dasgupta, Jens Lehmann. kcap 2017: [doi]

Sustainable Linked Data Generation: The Case of DBpediaWouter Maroy, Anastasia Dimou, Dimitris Kontokostas, Ben De Meester, Ruben Verborgh, Jens Lehmann, Erik Mannens, Sebastian Hellmann. semweb 2017: 297-313 [doi]

Torpedo: Improving the State-of-the-Art RDF Dataset SlicingEdgard Marx, Saeedeh Shekarpour, Tommaso Soru, Adrian M. P. Brasoveanu, Muhammad Saleem, Ciro Baron, Albert Weichselbraun, Jens Lehmann, Axel-Cyrille Ngonga Ngomo, Sören Auer. semco 2017: 149-156 [doi]

A Vocabulary-Independent Generation Framework for DBpedia and BeyondBen De Meester, Anastasia Dimou, Wouter Maroy, Dimitris Kontokostas, Ruben Verborgh, Jens Lehmann, Erik Mannens, Sebastian Hellmann. semweb 2017: [doi]

Benchmarking Faceted Browsing Capabilities of TriplestoresHenning Petzka, Claus Stadler, Georgios Katsimpras, Bastian Haarmann, Jens Lehmann. i-semantics 2017: 128-135 [doi]

Wombat - A Generalization Approach for Automatic Link DiscoveryMohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo, Jens Lehmann. esws 2017: 103-119 [doi]

JPA Criteria Queries over RDF DataClaus Stadler, Jens Lehmann. esws 2017: 55-62 [doi]

Trying Not to Die Benchmarking: Orchestrating RDF and Graph Data Management Solution Benchmarks Using LITMUSHarsh Thakkar, Yashwant Keswani, Mohnish Dubey, Jens Lehmann, Sören Auer. i-semantics 2017: 120-127 [doi]

LC-QuAD: A Corpus for Complex Question Answering over Knowledge GraphsPriyansh Trivedi, Gaurav Maheshwari, Mohnish Dubey, Jens Lehmann. semweb 2017: 210-218 [doi]

2016

Integrating New Refinement Operators in Terminological Decision Trees LearningGiuseppe Rizzo 0001, Nicola Fanizzi, Jens Lehmann, Lorenz Bühmann. ekaw 2016: 511-526 [doi]

Towards SPARQL-Based Induction for Large-Scale RDF Data SetsSimon Bin, Lorenz Bühmann, Jens Lehmann, Axel-Cyrille Ngonga Ngomo. ecai 2016: 1551-1552 [doi]

DL-Learner - A framework for inductive learning on the Semantic WebLorenz Bühmann, Jens Lehmann, Patrick Westphal. ws, 39:15-24, 2016. [doi]

DBpedia Mappings Quality AssessmentAnastasia Dimou, Dimitris Kontokostas, Markus Freudenberg, Ruben Verborgh, Jens Lehmann, Erik Mannens, Sebastian Hellmann. semweb 2016: [doi]

AskNow: A Framework for Natural Language Query Formalization in SPARQLMohnish Dubey, Sourish Dasgupta, Ankit Sharma, Konrad Höffner, Jens Lehmann. esws 2016: 300-316 [doi]

LODStats: The Data Web Census DatasetIvan Ermilov, Jens Lehmann, Michael Martin, Sören Auer. semweb 2016: 38-46 [doi]

MEX Interfaces: Automating Machine Learning Metadata GenerationDiego Esteves, Pablo N. Mendes, Diego Moussallem, Julio Cesar Duarte, Amrapali Zaveri, Jens Lehmann. i-semantics 2016: 17-24 [doi]

LinkedSpending: OpenSpending becomes Linked Open DataKonrad Höffner, Michael Martin, Jens Lehmann. semweb, 7(1):95-104, 2016. [doi]

CubeQA - Question Answering on RDF Data CubesKonrad Höffner, Jens Lehmann, Ricardo Usbeck. semweb 2016: 325-340 [doi]

Semantically Enhanced Quality Assurance in the JURION Business Use CaseDimitris Kontokostas, Christian Mader, Christian Dirschl, Katja Eck, Michael Leuthold, Jens Lehmann, Sebastian Hellmann. esws 2016: 661-676 [doi]

Exploring Term Networks for Semantic Search over RDF Knowledge GraphsEdgard Marx, Konrad Höffner, Saeedeh Shekarpour, Axel-Cyrille Ngonga Ngomo, Jens Lehmann, Sören Auer. mtsr 2016: 249-261 [doi]

DBtrends: Publishing and Benchmarking RDF Ranking FunctionsEdgard Marx, Amrapali Zaveri, Mofeed Mohammed, Sandro Rautenberg, Jens Lehmann, Axel-Cyrille Ngonga Ngomo, Gong Cheng. esws 2016: [doi]

Lion's Den: feeding the LinkLionMohamed Ahmed Sherif, Mofeed M. Hassan, Tommaso Soru, Axel-Cyrille Ngonga Ngomo, Jens Lehmann. semweb 2016: 235-236 [doi]

ACRyLIQ: Leveraging DBpedia for Adaptive Crowdsourcing in Linked Data Quality AssessmentUmair ul Hassan, Amrapali Zaveri, Edgard Marx, Edward Curry, Jens Lehmann. ekaw 2016: 681-696 [doi]

Quality assessment for Linked Data: A SurveyAmrapali Zaveri, Anisa Rula, Andrea Maurino, Ricardo Pietrobon, Jens Lehmann, Sören Auer. semweb, 7(1):63-93, 2016. [doi]

2015

The GeoKnow Generator Workbench - An Integrated Tool Supporting the Linked Data Lifecycle for Enterprise UsageAndreas Both, Matthias Wauer, Alejandra García-Rojas, Daniel Hladky, Jens Lehmann. i-semantics 2015: 92-95 [doi]

Test-driven Assessment of [R2]RML Mappings to Improve Dataset QualityAnastasia Dimou, Dimitris Kontokostas, Markus Freudenberg, Ruben Verborgh, Jens Lehmann, Erik Mannens, Sebastian Hellmann, Rik Van de Walle. semweb 2015: [doi]

Assessing and Refining Mappings to RDF to Improve Dataset QualityAnastasia Dimou, Dimitris Kontokostas, Markus Freudenberg, Ruben Verborgh, Jens Lehmann, Erik Mannens, Sebastian Hellmann, Rik Van de Walle. semweb 2015: 133-149 [doi]

kOre: Using Linked Data for OpenScience Information IntegrationIvan Ermilov, Konrad Hoeffner, Jens Lehmann, Dmitry Mouromtsev. i-semantics 2015: 67-70 [doi]

MEX vocabulary: a lightweight interchange format for machine learning experimentsDiego Esteves, Diego Moussallem, Ciro Baron Neto, Tommaso Soru, Ricardo Usbeck, Markus Ackermann, Jens Lehmann. i-semantics 2015: 169-176 [doi]

Interoperable Machine Learning Metadata using MEXDiego Esteves, Diego Moussallem, Ciro Baron Neto, Jens Lehmann, Maria Cláudia Reis Cavalcanti, Julio Cesar Duarte. semweb 2015: [doi]

Unsupervised learning of an extensive and usable taxonomy for DBpediaMarco Fossati, Dimitris Kontokostas, Jens Lehmann. i-semantics 2015: 177-184 [doi]

DeFacto - Temporal and multilingual Deep Fact ValidationDaniel Gerber, Diego Esteves, Jens Lehmann, Lorenz Bühmann, Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo, René Speck. ws, 35:85-101, 2015. [doi]

Interlinking: Performance Assessment of User Evaluation vs. Supervised Learning ApproachesMofeed M. Hassan, Jens Lehmann, Axel-Cyrille Ngonga Ngomo. WWW 2015: [doi]

The DBpedia Events DatasetMagnus Knuth, Jens Lehmann, Dimitris Kontokostas, Thomas Steiner, Harald Sack. semweb 2015: [doi]

2nd special issue on Linked Dataset DescriptionsJens Lehmann, Óscar Corcho. semweb, 6(2):103-104, 2015. [doi]

DBpedia - A large-scale, multilingual knowledge base extracted from WikipediaJens Lehmann, Robert Isele, Max Jakob, Anja Jentzsch, Dimitris Kontokostas, Pablo N. Mendes, Sebastian Hellmann, Mohamed Morsey, Patrick van Kleef, Sören Auer, Christian Bizer. semweb, 6(2):167-195, 2015. [doi]

Managing Geospatial Linked Data in the GeoKnow ProjectJens Lehmann, Spiros Athanasiou, Andreas Both, Alejandra García-Rojas, Giorgos Giannopoulos, Daniel Hladky, Jon Jay Le Grange, Axel-Cyrille Ngonga Ngomo, Mohamed Ahmed Sherif, Claus Stadler, Matthias Wauer, Patrick Westphal, Vadim Zaslawski. In Tom Narock, Peter Fox, editors, The Semantic Web in Earth and Space Science. Current Status and Future Directions. Volume 20 of Studies on the Semantic Web, pages 51-78, IOS Press, 2015. [doi]

An Open Question Answering FrameworkEdgard Marx, Tommaso Soru, Diego Esteves, Axel-Cyrille Ngonga Ngomo, Jens Lehmann. semweb 2015: [doi]

Automating RDF Dataset Transformation and EnrichmentMohamed Ahmed Sherif, Axel-Cyrille Ngonga Ngomo, Jens Lehmann. esws 2015: 371-387 [doi]

Simplified RDB2RDF MappingClaus Stadler, Jörg Unbehauen, Patrick Westphal, Mohamed Ahmed Sherif, Jens Lehmann. WWW 2015: [doi]

RDF Editing on the WebClaus Stadler, Natanael Arndt, Michael Martin, Jens Lehmann. i-semantics 2015: 96-99 [doi]

DBpedia Commons: Structured Multimedia Metadata from the Wikimedia CommonsGaurav Vaidya, Dimitris Kontokostas, Magnus Knuth, Jens Lehmann, Sebastian Hellmann. semweb 2015: 281-289 [doi]

2014

GeoKnow: Making the Web an Exploratory Place for Geospatial KnowledgeSpiros Athanasiou, Daniel Hladky, Giorgos Giannopoulos, Alejandra García-Rojas, Jens Lehmann. ercim, 2014(96), 2014. [doi]

A Fuzzy Knowledge Representation Model for Student Performance AssessmentFarshad Badie, Tommaso Soru, Jens Lehmann. icalt 2014: 539-540 [doi]

Inductive Lexical Learning of Class ExpressionsLorenz Bühmann, Daniel Fleischhacker, Jens Lehmann, André Melo, Johanna Völker. ekaw 2014: 42-53 [doi]

Lessons Learned - The Case of CROCUS: Cluster-Based Ontology Data CleansingDidier Cherix, Ricardo Usbeck, Andreas Both, Jens Lehmann. esws 2014: 14-24 [doi]

CROCUS: Cluster-based Ontology Data CleansingDidier Cherix, Ricardo Usbeck, Andreas Both, Jens Lehmann. esws 2014: [doi]

Supporting the Data Lifecycle at a Global Publisher using the Linked Data StackChristian Dirschl, Katja Eck, Jens Lehmann. ercim, 2014(96), 2014. [doi]

Knowledge Base Creation, Enrichment and RepairSebastian Hellmann, Volha Bryl, Lorenz Bühmann, Milan Dojchinovski, Dimitris Kontokostas, Jens Lehmann, Uros Milosevic, Petar Petrovski, Vojtech Svátek, Mladen Stanojevic, Ondrej Zamazal. In Sören Auer, Volha Bryl, Sebastian Tramp, editors, Linked Open Data - Creating Knowledge Out of Interlinked Data - Results of the LOD2 Project. Volume 8661 of Lecture Notes in Computer Science, pages 45-69, Springer, 2014. [doi]

Logics for the Semantic WebPascal Hitzler, Jens Lehmann, Axel Polleres. In Jörg H. Siekmann, editor, Computational Logic. Volume 9 of Handbook of the History of Logic, pages 679-710, Elsevier, 2014. [doi]

Towards question answering on statistical linked dataKonrad Höffner, Jens Lehmann. i-semantics 2014: 61-64 [doi]

NLP Data Cleansing Based on Linguistic Ontology ConstraintsDimitris Kontokostas, Martin Brümmer, Sebastian Hellmann, Jens Lehmann, Lazaros Ioannidis. esws 2014: 224-239 [doi]

Databugger: a test-driven framework for debugging the web of dataDimitris Kontokostas, Patrick Westphal, Sören Auer, Sebastian Hellmann, Jens Lehmann, Roland Cornelissen. WWW 2014: 115-118 [doi]

Perspectives on Ontology LearningJens Lehmann, Johanna Völker. Volume 18 of Studies on the Semantic Web, IOS Press, 2014. [doi]

LD viewer - linked data presentation frameworkDenis Lukovnikov, Claus Stadler, Jens Lehmann. i-semantics 2014: 124-131 [doi]

Towards an open question answering architectureEdgard Marx, Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo, Konrad Höffner, Jens Lehmann, Sören Auer. i-semantics 2014: 57-60 [doi]

Ontology Based Data Access and Integration for Improving the Effectiveness of Farming in NepalSuresh Pokharel, Mohamed Ahmed Sherif, Jens Lehmann. webi 2014: 319-326 [doi]

Hybrid Acquisition of Temporal Scopes for RDF DataAnisa Rula, Matteo Palmonari, Axel-Cyrille Ngonga Ngomo, Daniel Gerber, Jens Lehmann, Lorenz Bühmann. esws 2014: 488-503 [doi]

NIF4OGGD - NLP Interchange Format for Open German Governmental DataMohamed Ahmed Sherif, Sandro Coelho, Ricardo Usbeck, Sebastian Hellmann, Jens Lehmann, Martin Brümmer, Andreas Both. lrec 2014: 3524-3528 [doi]

Jassa - A JavaScript suite for SPARQL-based faceted searchClaus Stadler, Patrick Westphal, Jens Lehmann. semweb 2014: 31-36 [doi]

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