EARL: Joint entity and relation linking for question answering over knowledge graphs

Research output: Contributions to collected editions/worksArticle in conference proceedingsResearchpeer-review

Authors

Many question answering systems over knowledge graphs rely on entity and relation linking components in order to connect the natural language input to the underlying knowledge graph. Traditionally, entity linking and relation linking have been performed either as dependent sequential tasks or as independent parallel tasks. In this paper, we propose a framework called EARL, which performs entity linking and relation linking as a joint task. EARL implements two different solution strategies for which we provide a comparative analysis in this paper: The first strategy is a formalisation of the joint entity and relation linking tasks as an instance of the Generalised Travelling Salesman Problem (GTSP). In order to be computationally feasible, we employ approximate GTSP solvers. The second strategy uses machine learning in order to exploit the connection density between nodes in the knowledge graph. It relies on three base features and re-ranking steps in order to predict entities and relations. We compare the strategies and evaluate them on a dataset with 5000 questions. Both strategies significantly outperform the current state-of-the-art approaches for entity and relation linking.

Original languageEnglish
Title of host publicationThe Semantic Web – ISWC 2018 : 17th International Semantic Web Conference, Monterey, CA, USA, October 8–12, 2018 : proceedings
EditorsDenny Vrandecic, Kalina Bontcheva, Mari Carmen Suárez-Figueroa, Valentina Presutti, Irene Celino, Marta Sabou, Lucie-Aimee Kaffee, Elena Simperl
Number of pages19
Volume1
Place of PublicationCham
PublisherSpringer Schweiz
Publication date18.09.2018
Pages108-126
ISBN (print)978-3-030-00670-9
ISBN (electronic)978-3-030-00671-6
DOIs
Publication statusPublished - 18.09.2018
Externally publishedYes
Event17th International Semantic Web Conference - ISWC 2018 - Asilomar Conference Grounds, Monterey, United States
Duration: 08.10.201812.10.2018
Conference number: 17
http://iswc2018.semanticweb.org/

Bibliographical note

Funding Information:
Acknowledgement. This work is supported by the funding received from the EU H2020 projects WDAqua (ITN, GA. 642795) and HOBBIT (GA. 688227).

Funding Information:
This work is supported by the funding received from the EU H2020 projects WDAqua (ITN, GA. 642795) and HOBBIT (GA. 688227).

Publisher Copyright:
© Springer Nature Switzerland AG 2018.

    Research areas

  • Entity linking, GTSP, Question answering, Relation linking
  • Informatics

Recently viewed

Publications

  1. Organizational error management culture and its impact on performance: a two-study replication
  2. Mountain roads and non-native species modify elevational patterns of plant diversity
  3. The impact of auditor rotation, audit firm rotation and non-audit services on earnings quality, audit quality and investor perceptions: A literature review
  4. Teachers’ assessment competence
  5. Host plant availability potentially limits butterfly distributions under cold environmental conditions
  6. The Power of Time
  7. Development of recyclable Mg-based alloys
  8. Policy schemes, operational strategies and system integration of residential co-generation fuel cells.
  9. Macroeconomic shocks and banks’ foreign assets
  10. Predicting expatriate job performance
  11. Scaffolding inquiry-based science and chemistry education in inclusive classrooms
  12. CETA's Investment Court System and the Autonomy of EU Law: Insights from the Hearing in Opinion 1/17
  13. The Volatility of the Discourse on Refugees in Germany
  14. Waiver, acquiescence and extinctive prescription
  15. Ästhetische Langeweile in der Gegenwartskunst
  16. Yuval Shany, Assessing the Effectiveness of International Courts
  17. Exnovation as a necessary factor in successful energy transitions
  18. Managing increasing environmental risks through agrobiodiversity and agrienvironmental policies
  19. The Territory as Creative Force
  20. Reverse Solange
  21. Li-Yorke pairs of full Hausdorff dimension for some chaotic dynamical systems
  22. Deep decarbonization in Germany: A macro-analysis of economic and political challenges of the 'Energiewende' (energy transition)
  23. Responsivity as a transdisciplinary research principle
  24. Managing depression in older age
  25. Completion of the OBD- with the OBM-(On-Board-Measurement)-Technology
  26. An Over-Actuated Hexacopter Tilt-Rotor UAV Prototype for Agriculture of Precision
  27. Ecophysiological isotope tools for characterising the drought sensitivity of Douglas-fir (Pseudotsuga menziesii Mirb. Franco)
  28. "Forschendes Lernen in der Schule"
  29. Cytotoxicity of the ga-containing coatings on biodegradable magnesium alloys
  30. The rise and fall of GMOs in politics
  31. Do personal traits, creativity and organizational trust influence the innovative skills of technical students evidence from a private university?
  32. Vergleichssystematik für Optimierungsansätze
  33. Postretirement Career Planning
  34. Methane mitigation
  35. Disclosure in European Competition Litigation Through the Lens of US Discovery
  36. Sustainable management of marine fish stocks by means of sliding mode control