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

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

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Existing approaches on Question Answering over Knowledge Graphs (KGQA) have weak generalizability. That is often due to the standard i.i.d. assumption on the underlying dataset. Recently, three levels of generalization for KGQA were defined, namely i.i.d., compositional, zero-shot. We analyze 25 well-known KGQA datasets for 5 different Knowledge Graphs (KGs). We show that according to this definition many existing and online available KGQA datasets are either not suited to train a generalizable KGQA system or that the datasets are based on discontinued and out-dated KGs. Generating new datasets is a costly process and, thus, is not an alternative to smaller research groups and companies. In this work, we propose a mitigation method for re-splitting available KGQA datasets to enable their applicability to evaluate generalization, without any cost and manual effort. We test our hypothesis on three KGQA datasets, i.e., LC-QuAD, LC-QuAD 2.0 and QALD-9). Experiments on re-splitted KGQA datasets demonstrate its effectiveness towards generalizability. The code and a unified way to access 18 available datasets is online at https: //github.com/semantic-systems/KGQA-datasets as well as https: //github.com/semantic-systems/KGQA-datasets-generalization.

Original languageEnglish
Title of host publicationSIGIR 2022 - Proceedings of the 45th International ACM SIGIR Conference on Research and Development in Information Retrieval
EditorsEnrique Amigo, Pablo Castells, Julio Gonzalo
Number of pages10
Place of PublicationNew York
PublisherAssociation for Computing Machinery, Inc
Publication date06.07.2022
Pages3209-3218
ISBN (electronic)9781450387323
DOIs
Publication statusPublished - 06.07.2022
Externally publishedYes
Event45th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval - SIGIR 2022 - Online + Círculo de Bellas Artes (Circle of Beaux Arts), Madrid, Spain
Duration: 11.07.202215.07.2022
Conference number: 45
https://sigir.org/sigir2022/

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