The Role of Output Vocabulary in T2T LMs for SPARQL Semantic Parsing

Publikation: Beiträge in SammelwerkenAufsätze in KonferenzbändenForschungbegutachtet

Authors

In this work, we analyse the role of output vocabulary for text-to-text (T2T) models on the task of SPARQL semantic parsing. We perform experiments within the the context of knowledge graph question answering (KGQA), where the task is to convert questions in natural language to the SPARQL query language. We observe that the query vocabulary is distinct from human vocabulary. Language Models (LMs) are pre-dominantly trained for human language tasks, and hence, if the query vocabulary is replaced with a vocabulary more attuned to the LM tokenizer, the performance of models may improve. We carry out carefully selected vocabulary substitutions on the queries and find absolute gains in the range of 17% on the GrailQA dataset.
OriginalspracheEnglisch
TitelFindings of the Association for Computational Linguistics: ACL 2023 : July 9-14, 2023
HerausgeberAnna Rogers, Jordan L. Boyd-Graber, Naoaki Okazaki
Anzahl der Seiten10
ErscheinungsortStroudsburg
VerlagAssociation for Computational Linguistics (ACL)
Erscheinungsdatum01.07.2023
Seiten12219-12228
ISBN (elektronisch)978-1-959429-62-3
DOIs
PublikationsstatusErschienen - 01.07.2023
Extern publiziertJa
Veranstaltung61st Annual Meeting of the Association for Computational Linguistics - Toronto, Kanada
Dauer: 09.07.202314.07.2023
Konferenznummer: 61
https://2023.aclweb.org

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Publisher Copyright:
© 2023 Association for Computational Linguistics.

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