Search Results for author: Thuy Vu

Found 14 papers, 2 papers with code

Question-Context Alignment and Answer-Context Dependencies for Effective Answer Sentence Selection

no code implementations3 Jun 2023 Minh Van Nguyen, Kishan Kc, Toan Nguyen, Thien Huu Nguyen, Ankit Chadha, Thuy Vu

In this paper, we propose to improve the candidate scoring by explicitly incorporating the dependencies between question-context and answer-context into the final representation of a candidate.

Open-Domain Question Answering Sentence

DP-KB: Data Programming with Knowledge Bases Improves Transformer Fine Tuning for Answer Sentence Selection

no code implementations NeurIPS Workshop DBAI 2021 Nic Jedema, Thuy Vu, Manish Gupta, Alessandro Moschitti

While transformers demonstrate impressive performance on many knowledge intensive (KI) tasks, their ability to serve as implicit knowledge bases (KBs) remains limited, as shown on several slot-filling, question-answering (QA), fact verification, and entity-linking tasks.

Entity Linking Fact Verification +4

Question-Answer Sentence Graph for Joint Modeling Answer Selection

no code implementations16 Feb 2022 Roshni G. Iyer, Thuy Vu, Alessandro Moschitti, Yizhou Sun

This research studies graph-based approaches for Answer Sentence Selection (AS2), an essential component for retrieval-based Question Answering (QA) systems.

Answer Selection Retrieval +1

In Situ Answer Sentence Selection at Web-scale

no code implementations16 Jan 2022 Zeyu Zhang, Thuy Vu, Alessandro Moschitti

Current answer sentence selection (AS2) applied in open-domain question answering (ODQA) selects answers by ranking a large set of possible candidates, i. e., sentences, extracted from the retrieved text.

Multi-Task Learning Open-Domain Question Answering +1

Double Retrieval and Ranking for Accurate Question Answering

no code implementations16 Jan 2022 Zeyu Zhang, Thuy Vu, Alessandro Moschitti

Recent work has shown that an answer verification step introduced in Transformer-based answer selection models can significantly improve the state of the art in Question Answering.

Answer Selection Retrieval

Joint Models for Answer Verification in Question Answering Systems

no code implementations ACL 2021 Zeyu Zhang, Thuy Vu, Alessandro Moschitti

This paper studies joint models for selecting correct answer sentences among the top $k$ provided by answer sentence selection (AS2) modules, which are core components of retrieval-based Question Answering (QA) systems.

Question Answering Retrieval +1

AVA: an Automatic eValuation Approach for Question Answering Systems

no code implementations NAACL 2021 Thuy Vu, Alessandro Moschitti

We introduce AVA, an automatic evaluation approach for Question Answering, which given a set of questions associated with Gold Standard answers (references), can estimate system Accuracy.

Question Answering

Multilingual Answer Sentence Reranking via Automatically Translated Data

no code implementations20 Feb 2021 Thuy Vu, Alessandro Moschitti

We present a study on the design of multilingual Answer Sentence Selection (AS2) models, which are a core component of modern Question Answering (QA) systems.

Question Answering Sentence

CDA: a Cost Efficient Content-based Multilingual Web Document Aligner

no code implementations EACL 2021 Thuy Vu, Alessandro Moschitti

We introduce a Content-based Document Alignment approach (CDA), an efficient method to align multilingual web documents based on content in creating parallel training data for machine translation (MT) systems operating at the industrial level.

Machine Translation Translation

Machine Translation Customization via Automatic Training Data Selection from the Web

1 code implementation20 Feb 2021 Thuy Vu, Alessandro Moschitti

Machine translation (MT) systems, especially when designed for an industrial setting, are trained with general parallel data derived from the Web.

Machine Translation Translation

AVA: an Automatic eValuation Approach to Question Answering Systems

no code implementations2 May 2020 Thuy Vu, Alessandro Moschitti

This allows for effectively measuring the similarity between the reference and an automatic answer, biased towards the question semantics.

Question Answering

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