GETT-QA: Graph Embedding Based T2T Transformer for Knowledge Graph Question Answering

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

Authors

In this work, we present an end-to-end Knowledge Graph Question Answering (KGQA) system named GETT-QA. GETT-QA uses T5, a popular text-to-text pre-trained language model. The model takes a question in natural language as input and produces a simpler form of the intended SPARQL query. In the simpler form, the model does not directly produce entity and relation IDs. Instead, it produces corresponding entity and relation labels. The labels are grounded to KG entity and relation IDs in a subsequent step. To further improve the results, we instruct the model to produce a truncated version of the KG embedding for each entity. The truncated KG embedding enables a finer search for disambiguation purposes. We find that T5 is able to learn the truncated KG embeddings without any change of loss function, improving KGQA performance. As a result, we report strong results for LC-QuAD 2.0 and SimpleQuestions-Wikidata datasets on end-to-end KGQA over Wikidata.

Original languageEnglish
Title of host publicationThe Semantic Web - 20th International Conference, ESWC 2023, Proceedings
EditorsCatia Pesquita, Daniel Faria, Ernesto Jimenez-Ruiz, Jamie McCusker, Mauro Dragoni, Anastasia Dimou, Raphael Troncy, Sven Hertling
Number of pages19
PublisherSpringer Science and Business Media Deutschland
Publication date23.05.2023
Pages279-297
ISBN (print)978-3-031-33455-9
ISBN (electronic)978-3-031-33454-2
DOIs
Publication statusPublished - 23.05.2023
Externally publishedYes
Event20th International Conference on The Semantic Web - ESWC 2023: The Extended Semantic Web Conference - Aldemar Knossos Royal & Royal Villa, Hersonissos, Greece
Duration: 28.05.202301.06.2023
Conference number: 20
https://2023.eswc-conferences.org/

Bibliographical note

Publisher Copyright:
© 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.

Recently viewed

Researchers

  1. Stefan Kruse

Publications

  1. Phase equilibria, thermodynamics and solidification microstructures of Mg-Sn-Ca alloys, Part 2
  2. Brain Drain
  3. On anisotropic tensile mechanical behavior of Al-Cu-Li AA2198 alloy under different ageing conditions
  4. Autonomie der Migration
  5. Beyond Accuracy
  6. The role of work and organizational psychology in socio-ecological transformations: A bricolage of positions from a recent panel discussion.
  7. Introduction of nodal pricing into the new mexican electricity market through FTR allocations
  8. The revolution is conditional? The conditionality of hydrogen fuel cell expectations in five European countries
  9. Sex Differences in Double Poling Performance
  10. Maria Luise Weissmann: "Ich wünsche zu sein, was mich entflammt".
  11. Microstructure and compression creep strength of the newly developed magnesium alloy DieMag422
  12. Is the wild rabbit (Oryctolagus cuniculus) a threatened species in Spain? Sociological constraints in the conservation of species
  13. Active-matter-Systeme
  14. Erlebniswelten
  15. Predictors and moderators of response to internet-delivered Interpersonal Psychotherapy and Cognitive Behavior Therapy for depression
  16. Art 157: Nature and fundamental principles of the Authority
  17. Volunteers and asylum seekers
  18. Performance of Polycrystalline Boron Nitride Tools during Orbital Friction Stir Welding of Clad Pipes
  19. Ist Innovation jung?
  20. Verwundbarkeit
  21. The Management of Small and Medium Enterprises
  22. Was gibt der Generativität Sinn? Über Geburt, Zeit und Narrativität
  23. Von der Abschaffung des Lehrers
  24. Der Unort von Karten und das Nirgendwo der Kunst

Press / Media

  1. Ewige Treue