Docalog: Multi-document Dialogue System using Transformer-based Span Retrieval

Sayed Hesam Alavian, Ali Satvaty, Sadra Sabouri, Ehsaneddin Asgari*, Hossein Sameti*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Information-seeking dialogue systems, including knowledge identification and response generation, aim to respond to users with fluent, coherent, and informative answers based on users' needs. This paper discusses our proposed approach, Docalog, for the DialDoc-22 (Multi-Doc2Dial) shared task. Docalog identifies the most relevant knowledge in the associated document, in a multi-document setting. Docalog, is a three-stage pipeline consisting of (1) a document retriever model (DR. TEIT), (2) an answer span prediction model, and (3) an ultimate span picker deciding on the most likely answer span, out of all predicted spans. In the test phase of MultiDoc2Dial 2022, Docalog achieved f1-scores of 36.07% and 28.44% and SacreBLEU scores of 23.70% and 20.52%, respectively on the MDD-SEEN and MDD-UNSEEN folds.

Original languageEnglish
Title of host publicationDialDoc 2022 - Proceedings of the 2nd DialDoc Workshop on Document-Grounded Dialogue and Conversational Question Answering, Proceedings of the Workshop
EditorsSong Feng, Hui Wan, Caixia Yuan, Han Yu
PublisherAssociation for Computational Linguistics (ACL)
Pages142-147
Number of pages6
ISBN (Electronic)9781955917339
Publication statusPublished - 2022
Externally publishedYes
Event2nd DialDoc Workshop on Document-Grounded Dialogue and Conversational Question Answering, DialDoc 2022 - Dublin, Ireland
Duration: 26 May 2022 → …

Publication series

NameDialDoc 2022 - Proceedings of the 2nd DialDoc Workshop on Document-Grounded Dialogue and Conversational Question Answering, Proceedings of the Workshop

Conference

Conference2nd DialDoc Workshop on Document-Grounded Dialogue and Conversational Question Answering, DialDoc 2022
Country/TerritoryIreland
CityDublin
Period26/05/22 → …

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