Publications

You can find a list of completed Phd theses here.

516 entries « 1 of 11 »

2022

Lange, Christoph; Langkau, Jörg; Bader, Sebastian R.

The IDS Information Model: A Semantic Vocabulary for Sovereign Data Exchange Incollection

In: Designing Data Spaces: The Ecosystem Approach to Competitive Advantage, pp. 111–127, Springer, 2022.

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Rony, Md. Rashad Al Hasan; Kovriguina, Liubov; Chaudhuri, Debanjan; Usbeck, Ricardo; Lehmann, Jens

RoMe: A Robust Metric for Evaluating Natural Language Generation Inproceedings

In: Proceedings of the 60th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), ACL 2022, Dublin, Ireland, May 22-27, 2022, pp. 5645–5657, Association for Computational Linguistics, 2022.

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Sun, Wenya; Grubenmann, Tobias; Cheng, Reynold; Kao, Ben; Ching, Wai-Ki

Modeling Long-Range Travelling Times with Big Railway Data Inproceedings

In: Database Systems for Advanced Applications - 27th International Conference, DASFAA 2022, Virtual Event, April 11-14, 2022, Proceedings, Part III, pp. 443–454, Springer, 2022.

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Vlad, Adriano; Vahdati, Sahar; Nayyeri, Mojtaba; Bellomarini, Luigi; Sallinger, Emanuel

Towards Hybrid Logic-based and Embedding-based Reasoning on Financial Knowledge Graphs Inproceedings

In: Proceedings of the Workshops of the EDBT/ICDT 2022 Joint Conference, Edinburgh, UK, March 29, 2022, CEUR-WS.org, 2022.

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Nayyeri, Mojtaba; Vahdati, Sahar; Khan, Md Tansen; Alam, Mirza Mohtashim; Wenige, Lisa; Behrend, Andreas; Lehmann, Jens

Dihedron Algebraic Embeddings for Spatio-Temporal Knowledge Graph Completion Inproceedings

In: The Semantic Web - 19th International Conference, ESWC 2022, Hersonissos, Crete, Greece, May 29 - June 2, 2022, Proceedings, pp. 253–269, Springer, 2022.

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McTear, Michael F.; Jokinen, Kristiina; Dubey, Mohnish; Chollet, Gérard; Boudy, Jér^ome; Lohr, Christophe; Roelen, Sonja-Dana; Mössing, Wanja; Wieching, Rainer

Empowering Well-Being Through Conversational Coaching for Active and Healthy Ageing Inproceedings

In: Participative Urban Health and Healthy Aging in the Age of AI - 19th International Conference, ICOST 2022, Paris, France, June 27-30, 2022, Proceedings, pp. 257–265, Springer, 2022.

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Reimann, Lars; Kniesel-Wünsche, Günter

Improving the Learnability of Machine Learning APIs by Semi-Automated API Wrapping Inproceedings

In: 44th IEEE/ACM International Conference on Software Engineering: New Ideas and Emerging Results ICSE (NIER) 2022, Pittsburgh, PA, USA, May 22-24, 2022, pp. 46–50, IEEE, 2022.

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Ali, Mehdi; Berrendorf, Max; Galkin, Mikhail; Thost, Veronika; Ma, Tengfei; Tresp, Volker; Lehmann, Jens

Improving Inductive Link Prediction Using Hyper-Relational Facts (Extended Abstract) Inproceedings

In: Proceedings of the Thirty-First International Joint Conference on Artificial Intelligence, IJCAI 2022, Vienna, Austria, 23-29 July 2022, pp. 5259–5263, ijcai.org, 2022.

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Rony, Md. Rashad Al Hasan; Zuo, Ying; Kovriguina, Liubov; Teucher, Roman; Lehmann, Jens

Climate Bot: A Machine Reading Comprehension System for Climate Change Question Answering Inproceedings

In: Proceedings of the Thirty-First International Joint Conference on Artificial Intelligence, IJCAI 2022, Vienna, Austria, 23-29 July 2022, pp. 5249–5252, ijcai.org, 2022.

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Andreadis, Stelios; Mavropoulos, Thanassis; Pantelidis, Nick; Vrochidis, Stefanos; Elias, Mirette; Papadopoulos, Charis; Gialampoukidis, Ilias; Kompatsiaris, Ioannis

SPARQL querying for validating the usage of automatically georeferenced social media data as human sensors for air quality Inproceedings

In: 14th IEEE Image, Video, and Multidimensional Signal Processing Workshop, IVMSP 2022, Nafplio, Greece, June 26-29, 2022, pp. 1–5, IEEE, 2022.

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Rony, Md. Rashad Al Hasan; Usbeck, Ricardo; Lehmann, Jens

DialoKG: Knowledge-Structure Aware Task-Oriented Dialogue Generation Inproceedings

In: Findings of the Association for Computational Linguistics: NAACL 2022, Seattle, WA, United States, July 10-15, 2022, pp. 2557–2571, Association for Computational Linguistics, 2022.

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Moghaddam, Farshad Bakhshandegan; Lehmann, Jens; Jabeen, Hajira

DistAD: A Distributed Generic Anomaly Detection Framework over Large KGs Inproceedings

In: 16th IEEE International Conference on Semantic Computing, ICSC 2022, Laguna Hills, CA, USA, January 26-28, 2022, pp. 243–250, IEEE, 2022.

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Perevalov, Aleksandr; Diefenbach, Dennis; Usbeck, Ricardo; Both, Andreas

QALD-9-plus: A Multilingual Dataset for Question Answering over DBpedia and Wikidata Translated by Native Speakers Inproceedings

In: 16th IEEE International Conference on Semantic Computing, ICSC 2022, Laguna Hills, CA, USA, January 26-28, 2022, pp. 229–234, IEEE, 2022.

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Banerjee, Debayan; Nair, Pranav Ajit; Kaur, Jivat Neet; Usbeck, Ricardo; Biemann, Chris

Modern Baselines for SPARQL Semantic Parsing Inproceedings

In: SIGIR '22: The 45th International ACM SIGIR Conference on Research and Development in Information Retrieval, Madrid, Spain, July 11 - 15, 2022, pp. 2260–2265, ACM, 2022.

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Jiang, Longquan; Usbeck, Ricardo

Knowledge Graph Question Answering Datasets and Their Generalizability: Are They Enough for Future Research? Inproceedings

In: SIGIR '22: The 45th International ACM SIGIR Conference on Research and Development in Information Retrieval, Madrid, Spain, July 11 - 15, 2022, pp. 3209–3218, ACM, 2022.

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Xu, Chengjin; Su, Fenglong; Xiong, Bo; Lehmann, Jens

Time-aware Entity Alignment using Temporal Relational Attention Inproceedings

In: WWW '22: The ACM Web Conference 2022, Virtual Event, Lyon, France, April 25 - 29, 2022, pp. 788–797, ACM, 2022.

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Alam, Mirza Mohtashim; Rony, Md. Rashad Al Hasan; Nayyeri, Mojtaba; Mohiuddin, Karishma; Akter, M. S. T. Mahfuja; Vahdati, Sahar; Lehmann, Jens

Language Model Guided Knowledge Graph Embeddings Journal Article

In: IEEE Access, vol. 10, pp. 76008–76020, 2022.

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Rony, Md. Rashad Al Hasan; Chaudhuri, Debanjan; Usbeck, Ricardo; Lehmann, Jens

Tree-KGQA: An Unsupervised Approach for Question Answering Over Knowledge Graphs Journal Article

In: IEEE Access, vol. 10, pp. 50467–50478, 2022.

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Rony, Md. Rashad Al Hasan; Kumar, Uttam; Teucher, Roman; Kovriguina, Liubov; Lehmann, Jens

SGPT: A Generative Approach for SPARQL Query Generation From Natural Language Questions Journal Article

In: IEEE Access, vol. 10, pp. 70712–70723, 2022.

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Westphal, Patrick; Grubenmann, Tobias; Collarana, Diego; Bin, Simon; Bühmann, Lorenz; Lehmann, Jens

Spatial concept learning and inference on geospatial polygon data Journal Article

In: Knowl. Based Syst., vol. 241, pp. 108233, 2022.

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Han, Xiaolin; Cheng, Reynold; Ma, Chenhao; Grubenmann, Tobias

DeepTEA: Effective and Efficient Online Time-dependent Trajectory Outlier Detection Journal Article

In: Proc. VLDB Endow., vol. 15, no. 7, pp. 1493–1505, 2022.

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Han, Xiaolin; Dell'Aglio, Daniele; Grubenmann, Tobias; Cheng, Reynold; Bernstein, Abraham

A framework for differentially-private knowledge graph embeddings Journal Article

In: J. Web Semant., vol. 72, pp. 100696, 2022.

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2021

Musyaffa, Fathoni Arief

Comparative Analysis of Open Linked Fiscal Data PhD Thesis

Rheinische Friedrich-Wilhelms-Universität Bonn, 2021.

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Fathalla, Said

Towards Facilitating Scholarly Communication using Semantic Technologies PhD Thesis

Rheinische Friedrich-Wilhelms-Universität Bonn, 2021.

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Dubey, Mohnish

Towards Complex Question Answering over Knowledge Graphs PhD Thesis

University of Bonn, Germany, 2021.

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Nayyeri, Mojtaba; Vahdati, Sahar; Aykul, Can; Lehmann, Jens

5* Knowledge Graph Embeddings with Projective Transformations Inproceedings

In: Thirty-Fifth AAAI Conference on Artificial Intelligence, AAAI 2021, Thirty-Third Conference on Innovative Applications of Artificial Intelligence, IAAI 2021, The Eleventh Symposium on Educational Advances in Artificial Intelligence, EAAI 2021, Virtual Event, February 2-9, 2021, pp. 9064–9072, AAAI Press, 2021.

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Nayyeri, Mojtaba; Cil, Gökce Müge; Vahdati, Sahar; Osborne, Francesco; Kravchenko, Andrey; Angioni, Simone; Salatino, Angelo A.; Recupero, Diego Reforgiato; Motta, Enrico; Lehmann, Jens

Link Prediction of Weighted Triples for Knowledge Graph Completion Within the Scholarly Domain Journal Article

In: IEEE Access, vol. 9, pp. 116002–116014, 2021.

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Nayyeri, Mojtaba; Vahdati, Sahar; Aykul, Can; Lehmann, Jens

5* Knowledge Graph Embeddings with Projective Transformations Inproceedings

In: Thirty-Fifth AAAI Conference on Artificial Intelligence, AAAI 2021, Thirty-Third Conference on Innovative Applications of Artificial Intelligence, IAAI 2021, The Eleventh Symposium on Educational Advances in Artificial Intelligence, EAAI 2021, Virtual Event, February 2-9, 2021, pp. 9064–9072, AAAI Press, 2021.

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Galetzka, Fabian; Rose, Jewgeni; Schlangen, David; Lehmann, Jens

Space Efficient Context Encoding for Non-Task-Oriented Dialogue Generation with Graph Attention Transformer Inproceedings

In: Proceedings of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language Processing, ACL/IJCNLP 2021, (Volume 1: Long Papers), Virtual Event, August 1-6, 2021, pp. 7028–7041, Association for Computational Linguistics, 2021.

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Lukovnikov, Denis; Fischer, Asja

Insertion-based Tree Decoding Inproceedings

In: Findings of the Association for Computational Linguistics: ACL/IJCNLP 2021, Online Event, August 1-6, 2021, pp. 3201–3213, Association for Computational Linguistics, 2021.

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Nadgeri, Abhishek; Bastos, Anson; Singh, Kuldeep; Hoffart, Isaiah Onando Mulang'and Johannes; Shekarpour, Saeedeh; Saraswat, Vijay

KGPool: Dynamic Knowledge Graph Context Selection for Relation Extraction Inproceedings

In: Findings of the Association for Computational Linguistics: ACL/IJCNLP 2021, Online Event, August 1-6, 2021, pp. 535–548, Association for Computational Linguistics, 2021.

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Guluzade, Aynur; Kacupaj, Endri; Maleshkova, Maria

Demographic Aware Probabilistic Medical Knowledge Graph Embeddings of Electronic Medical Records Inproceedings

In: Artificial Intelligence in Medicine - 19th International Conference on Artificial Intelligence in Medicine, AIME 2021, Virtual Event, June 15-18, 2021, Proceedings, pp. 408–417, Springer, 2021.

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Bastos, Anson; Singh, Kuldeep; Nadgeri, Abhishek; Shekarpour, Saeedeh; Hoffart, Isaiah Onando Mulang'and Johannes

HopfE: Knowledge Graph Representation Learning using Inverse Hopf Fibrations Inproceedings

In: CIKM '21: The 30th ACM International Conference on Information and Knowledge Management, Virtual Event, Queensland, Australia, November 1 - 5, 2021, pp. 89–99, ACM, 2021.

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Draschner, Carsten Felix; Stadler, Claus; Moghaddam, Farshad Bakhshandegan; Lehmann, Jens; Jabeen, Hajira

DistRDF2ML - Scalable Distributed In-Memory Machine Learning Pipelines for RDF Knowledge Graphs Inproceedings

In: CIKM '21: The 30th ACM International Conference on Information and Knowledge Management, Virtual Event, Queensland, Australia, November 1 - 5, 2021, pp. 4465–4474, ACM, 2021.

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Kacupaj, Endri; Plepi, Joan; Singh, Kuldeep; Thakkar, Harsh; Lehmann, Jens; Maleshkova, Maria

Conversational Question Answering over Knowledge Graphs with Transformer and Graph Attention Networks Inproceedings

In: Proceedings of the 16th Conference of the European Chapter of the Association for Computational Linguistics: Main Volume, EACL 2021, Online, April 19 - 23, 2021, pp. 850–862, Association for Computational Linguistics, 2021.

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Ravi, Manoj Prabhakar Kannan; Singh, Kuldeep; Shekarpour, Isaiah Onando Mulang'and Saeedeh; Hoffart, Johannes; Lehmann, Jens

CHOLAN: A Modular Approach for Neural Entity Linking on Wikipedia and Wikidata Inproceedings

In: Proceedings of the 16th Conference of the European Chapter of the Association for Computational Linguistics: Main Volume, EACL 2021, Online, April 19 - 23, 2021, pp. 504–514, Association for Computational Linguistics, 2021.

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Nayyeri, Mojtaba; Vahdati, Sahar; Sallinger, Emanuel; Alam, Mirza Mohtashim; Yazdi, Hamed Shariat; Lehmann, Jens

Pattern-Aware and Noise-Resilient Embedding Models Inproceedings

In: Advances in Information Retrieval - 43rd European Conference on IR Research, ECIR 2021, Virtual Event, March 28 - April 1, 2021, Proceedings, Part I, pp. 483–496, Springer, 2021.

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Lukovnikov, Denis; Däubener, Sina; Fischer, Asja

Detecting Compositionally Out-of-Distribution Examples in Semantic Parsing Inproceedings

In: Findings of the Association for Computational Linguistics: EMNLP 2021, Virtual Event / Punta Cana, Dominican Republic, 16-20 November, 2021, pp. 591–598, Association for Computational Linguistics, 2021.

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Nayyeri, Mojtaba; Xu, Chengjin; Hoffmann, Franca; Alam, Mirza Mohtashim; Lehmann, Jens; Vahdati, Sahar

Knowledge Graph Representation Learning using Ordinary Differential Equations Inproceedings

In: Proceedings of the 2021 Conference on Empirical Methods in Natural Language Processing, EMNLP 2021, Virtual Event / Punta Cana, Dominican Republic, 7-11 November, 2021, pp. 9529–9548, Association for Computational Linguistics, 2021.

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Nedelchev, Rostislav; Lehmann, Jens; Usbeck, Ricardo

Proxy Indicators for the Quality of Open-domain Dialogues Inproceedings

In: Proceedings of the 2021 Conference on Empirical Methods in Natural Language Processing, EMNLP 2021, Virtual Event / Punta Cana, Dominican Republic, 7-11 November, 2021, pp. 7834–7855, Association for Computational Linguistics, 2021.

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Xu, Chengjin; Su, Fenglong; Lehmann, Jens

Time-aware Graph Neural Network for Entity Alignment between Temporal Knowledge Graphs Inproceedings

In: Proceedings of the 2021 Conference on Empirical Methods in Natural Language Processing, EMNLP 2021, Virtual Event / Punta Cana, Dominican Republic, 7-11 November, 2021, pp. 8999–9010, Association for Computational Linguistics, 2021.

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Chaudhuri, Debanjan; Rony, Md. Rashad Al Hasan; Lehmann, Jens

Grounding Dialogue Systems via Knowledge Graph Aware Decoding with Pre-trained Transformers Inproceedings

In: The Semantic Web - 18th International Conference, ESWC 2021, Virtual Event, June 6-10, 2021, Proceedings, pp. 323–339, Springer, 2021.

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Kacupaj, Endri; Banerjee, Barshana; Singh, Kuldeep; Lehmann, Jens

ParaQA: A Question Answering Dataset with Paraphrase Responses for Single-Turn Conversation Inproceedings

In: The Semantic Web - 18th International Conference, ESWC 2021, Virtual Event, June 6-10, 2021, Proceedings, pp. 598–613, Springer, 2021.

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Plepi, Joan; Kacupaj, Endri; Singh, Kuldeep; Thakkar, Harsh; Lehmann, Jens

Context Transformer with Stacked Pointer Networks for Conversational Question Answering over Knowledge Graphs Inproceedings

In: The Semantic Web - 18th International Conference, ESWC 2021, Virtual Event, June 6-10, 2021, Proceedings, pp. 356–371, Springer, 2021.

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Wilhelm, Nico; Collarana, Diego; Lehmann, Jens

A Virtual Knowledge Graph for Enabling Defect Traceability and Customer Service Analytics Inproceedings

In: The Semantic Web: ESWC 2021 Satellite Events - Virtual Event, June 6-10, 2021, Revised Selected Papers, pp. 245–248, Springer, 2021.

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Moghaddam, Farshad Bakhshandegan; Draschner, Carsten; Lehmann, Jens; Jabeen, Hajira

Literal2Feature: An Automatic Scalable RDF Graph Feature Extractor Inproceedings

In: Further with Knowledge Graphs - Proceedings of the 17th International Conference on Semantic Systems, SEMANTiCS 2017, Amsterdam, The Netherlands, September 6-9, 2021, pp. 74–88, IOS Press, 2021.

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Sadeghi, Afshin; Shahini, Xhulia; Schmitz, Martin; Lehmann, Jens

BenchEmbedd: A FAIR Benchmarking tool forKnowledge Graph Embeddings Inproceedings

In: Joint Proceedings of the Semantics co-located events: Poster&Demo track and Workshop on Ontology-Driven Conceptual Modelling of Digital Twins co-located with Semantics 2021, Amsterdam and Online, September 6-9, 2021, CEUR-WS.org, 2021.

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Vollmers, Daniel; Jalota, Rricha; Moussallem, Diego; Topiwala, Hardik; Ngomo, Axel-Cyrille Ngonga; Usbeck, Ricardo

Knowledge Graph Question Answering Using Graph-Pattern Isomorphism Inproceedings

In: Further with Knowledge Graphs - Proceedings of the 17th International Conference on Semantic Systems, SEMANTiCS 2017, Amsterdam, The Netherlands, September 6-9, 2021, pp. 103–117, IOS Press, 2021.

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Mohamed, Heba; Fathalla, Said; Lehmann, Jens; Jabeen, Hajira

A Scalable Approach for Distributed Reasoning over Large-scale OWL Datasets Inproceedings

In: Proceedings of the 13th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management, IC3K 2021, Volume 2: KEOD, Online Streaming, October 25-27, 2021, pp. 51–60, SCITEPRESS, 2021.

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Lukovnikov, Denis; Fischer, Asja

Improving Breadth-Wise Backpropagation in Graph Neural Networks Helps Learning Long-Range Dependencies Inproceedings

In: Proceedings of the 38th International Conference on Machine Learning, ICML 2021, 18-24 July 2021, Virtual Event, pp. 7180–7191, PMLR, 2021.

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516 entries « 1 of 11 »