Template-based Question Answering using Recursive Neural Networks

Publikation: Beiträge in SammelwerkenAufsätze in KonferenzbändenForschungbegutachtet

Authors

  • Ram G. Athreya
  • Srividya K. Bansal
  • Axel Cyrille Ngonga Ngomo
  • Ricardo Usbeck

Most question answering (QA) systems over Linked Data, i.e. Knowledge Graphs, approach the question answering task as a conversion from a natural language question to its corresponding SPARQL query. A common approach is to use query templates to generate SPARQL queries with slots that need to be filled. Using templates instead of running an extensive NLP pipeline or end-to-end model shifts the QA problem into a classification task, where the system needs to match the input question to the appropriate template. This paper presents an approach to automatically learn and classify natural language questions into corresponding templates using recursive neural networks. Our model was trained on 5000 questions and their respective SPARQL queries from the preexisting LC-QuAD dataset grounded in DBpedia, spanning 5042 entities and 615 predicates. The resulting model was evaluated using the FAIR GERBIL QA framework resulting in 0.419 macro f-measure on LC-QuAD and 0.417 macro f-measure on QALD-7.

OriginalspracheEnglisch
TitelProceedings - 2021 IEEE 15th International Conference on Semantic Computing, ICSC 2021
Anzahl der Seiten4
VerlagInstitute of Electrical and Electronics Engineers Inc.
Erscheinungsdatum01.2021
Seiten195-198
Aufsatznummer9364639
ISBN (Print)978-1-7281-8900-0
ISBN (elektronisch)978-1-7281-8899-7
DOIs
PublikationsstatusErschienen - 01.2021
Extern publiziertJa
Veranstaltung15th IEEE International Conference on Semantic Computing - ICSC 2021 - Virtual, Laguna Hills, Virtual, Laguna Hills, USA / Vereinigte Staaten
Dauer: 27.01.202129.01.2021
Konferenznummer: 15

DOI

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