Temporal question answering (QA) is a special category of complex question answering task that requires reasoning over facts asserting time intervals of events.Previous works have predominately relied on Knowledge Base Question Answering (KBQA) for temporal QA.One of the major challenges faced by these systems is their inability to retrieve all relevant facts due to factors such as incomplete KB and entity/relation linking errors (Patidar et al., 2022).A failure to fetch even a single fact will block KBQA from computing the answer.Such cases of KB incompleteness are even more profound in the temporal context.To address this issue, we explore an interesting direction where a targeted temporal fact extraction technique is used to assist KBQA whenever it fails to retrieve temporal facts from the KB.We model the extraction problem as an open-domain question answering task using offthe-shelf language models.This way, we target to extract from textual resources those facts that failed to get retrieved from the KB.Experimental results on two temporal QA benchmarks show promising ~30% & ~10% relative improvements in answer accuracies without any additional training cost.

Hang Jiang, Sairam Gurajada, Qiuhao Lu, Sumit Neelam, Lucian Popa, Prithviraj Sen, Yunyao Li, Alexander Gray. Proceedings of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language Processing (Volume 1: Long Papers). 2021.

research-article Share on QUEST: an exploratory approach to robust query processing Authors: Anshuman Dutt Indian Institute of Science, Bangalore, INDIA Indian Institute of Science, Bangalore, INDIAView Profile , Sumit Neelam Indian Institute of Science, Bangalore, INDIA Indian Institute of Science, Bangalore, INDIAView Profile , Jayant R. Haritsa Indian Institute of Science, Bangalore, INDIA Indian Institute of Science, Bangalore, INDIAView Profile Authors Info & Claims Proceedings of the VLDB EndowmentVolume 7Issue 13August 2014 pp 1585–1588https://doi.org/10.14778/2733004.2733036Published:01 August 2014Publication History 3citation41DownloadsMetricsTotal Citations3Total Downloads41Last 12 Months8Last 6 weeks1 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my Alerts New Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteGet Access