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Existing dialogue systems rely on Query Suggestion (QS) to enhance user engagement. Recent efforts typically employ large language models with Click-Through Rate (CTR) model, yet fail in cold-start scenarios due to their heavy reliance on…

Computation and Language · Computer Science 2026-03-25 Qi Sun , Kejun Xiao , Huaipeng Zhao , Tao Luo , Xiaoyi Zeng

Supervised Question Answering systems (QA systems) rely on domain-specific human-labeled data for training. Unsupervised QA systems generate their own question-answer training pairs, typically using secondary knowledge sources to achieve…

Computation and Language · Computer Science 2023-02-06 Dinesh Nagumothu , Bahadorreza Ofoghi , Guangyan Huang , Peter W. Eklund

Question answering (QA) has achieved promising progress recently. However, answering a question in real-world scenarios like the medical domain is still challenging, due to the requirement of external knowledge and the insufficient quantity…

Artificial Intelligence · Computer Science 2019-12-10 Sheng Shen , Yaliang Li , Nan Du , Xian Wu , Yusheng Xie , Shen Ge , Tao Yang , Kai Wang , Xingzheng Liang , Wei Fan

Prior studies in privacy policies frame the question answering (QA) task as identifying the most relevant text segment or a list of sentences from a policy document given a user query. Existing labeled datasets are heavily imbalanced (only…

Computation and Language · Computer Science 2023-04-25 Md Rizwan Parvez , Jianfeng Chi , Wasi Uddin Ahmad , Yuan Tian , Kai-Wei Chang

Question answering (QA) systems are sensitive to the many different ways natural language expresses the same information need. In this paper we turn to paraphrases as a means of capturing this knowledge and present a general framework which…

Computation and Language · Computer Science 2017-08-22 Li Dong , Jonathan Mallinson , Siva Reddy , Mirella Lapata

Open-domain question answering (QA) is the tasl of identifying answers to natural questions from a large corpus of documents. The typical open-domain QA system starts with information retrieval to select a subset of documents from the…

Computation and Language · Computer Science 2020-09-03 Sina J. Semnani , Manish Pandey

Recent success of deep learning models for the task of extractive Question Answering (QA) is hinged on the availability of large annotated corpora. However, large domain specific annotated corpora are limited and expensive to construct. In…

Computation and Language · Computer Science 2018-04-04 Bhuwan Dhingra , Danish Pruthi , Dheeraj Rajagopal

Large language models augmented with task-relevant documents have demonstrated impressive performance on knowledge-intensive tasks. However, regarding how to obtain effective documents, the existing methods are mainly divided into two…

Computation and Language · Computer Science 2023-10-10 Zhangyin Feng , Xiaocheng Feng , Dezhi Zhao , Maojin Yang , Bing Qin

Deep learning methods that extract answers for non-factoid questions from QA sites are seen as critical since they can assist users in reaching their next decisions through conversations with AI systems. The current methods, however, have…

Computation and Language · Computer Science 2019-12-24 Makoto Nakatsuji

Neural models for automated fact verification have achieved promising results thanks to the availability of large, human-annotated datasets. However, for each new domain that requires fact verification, creating a dataset by manually…

Computation and Language · Computer Science 2021-06-01 Liangming Pan , Wenhu Chen , Wenhan Xiong , Min-Yen Kan , William Yang Wang

The scarcity of high-quality, knowledge-intensive training data hinders the development of large language models (LLMs), as traditional corpora provide limited information. Previous studies have synthesized and integrated corpora-dependent…

Computation and Language · Computer Science 2025-08-05 Xuemiao Zhang , Chengying Tu , Can Ren , Rongxiang Weng , Hongfei Yan , Jingang Wang , Xunliang Cai

Lifelong language learning aims to stream learning NLP tasks while retaining knowledge of previous tasks. Previous works based on the language model and following data-free constraint approaches have explored formatting all data as "begin…

Computation and Language · Computer Science 2022-12-27 Han Wang , Ruiliu Fu , Xuejun Zhang , Jun Zhou , Qingwei Zhao

Multi-hop Question Answering (QA) is a challenging task since it requires an accurate aggregation of information from multiple context paragraphs and a thorough understanding of the underlying reasoning chains. Recent work in multi-hop QA…

Computation and Language · Computer Science 2022-11-02 Kaige Xie , Sarah Wiegreffe , Mark Riedl

Extractive question answering (QA) systems can enable physicians and researchers to query medical records, a foundational capability for designing clinical studies and understanding patient medical history. However, building these systems…

Computation and Language · Computer Science 2023-12-07 Joel Stremmel , Ardavan Saeedi , Hamid Hassanzadeh , Sanjit Batra , Jeffrey Hertzberg , Jaime Murillo , Eran Halperin

In open question answering (QA), the answer to a question is produced by retrieving and then analyzing documents that might contain answers to the question. Most open QA systems have considered only retrieving information from unstructured…

Computation and Language · Computer Science 2021-02-11 Wenhu Chen , Ming-Wei Chang , Eva Schlinger , William Wang , William W. Cohen

Multi-hop Question Answering (QA) necessitates complex reasoning by integrating multiple pieces of information to resolve intricate questions. However, existing QA systems encounter challenges such as outdated information, context window…

Computation and Language · Computer Science 2024-08-23 Xiaoming Zhang , Ming Wang , Xiaocui Yang , Daling Wang , Shi Feng , Yifei Zhang

Question Answering (QA), as a research field, has primarily focused on either knowledge bases (KBs) or free text as a source of knowledge. These two sources have historically shaped the kinds of questions that are asked over these sources,…

Computation and Language · Computer Science 2019-02-26 Igor Labutov , Bishan Yang , Anusha Prakash , Amos Azaria

Commonsense question answering (QA) research requires machines to answer questions based on commonsense knowledge. However, this research requires expensive labor costs to annotate data as the basis of research, and models that rely on…

Computation and Language · Computer Science 2023-05-11 Xin Guan , Biwei Cao , Qingqing Gao , Zheng Yin , Bo Liu , Jiuxin Cao

Multimodal multihop question answering (MMQA) requires reasoning over images and text from multiple sources. Despite advances in visual question answering, this multihop setting remains underexplored due to a lack of quality datasets.…

Computation and Language · Computer Science 2025-09-16 Amirhossein Abaskohi , Spandana Gella , Giuseppe Carenini , Issam H. Laradji

Pretrained Large Language Models (LLMs) have gained significant attention for addressing open-domain Question Answering (QA). While they exhibit high accuracy in answering questions related to common knowledge, LLMs encounter difficulties…

Computation and Language · Computer Science 2024-03-05 Rohan Kumar , Youngmin Kim , Sunitha Ravi , Haitian Sun , Christos Faloutsos , Ruslan Salakhutdinov , Minji Yoon
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