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Pre-trained neural abstractive summarization systems have dominated extractive strategies on news summarization performance, at least in terms of ROUGE. However, system-generated abstractive summaries often face the pitfall of factual…

Computation and Language · Computer Science 2020-10-07 Yue Dong , Shuohang Wang , Zhe Gan , Yu Cheng , Jackie Chi Kit Cheung , Jingjing Liu

The topic of summarization evaluation has recently attracted a surge of attention due to the rapid development of abstractive summarization systems. However, the formulation of the task is rather ambiguous, neither the linguistic nor the…

Computation and Language · Computer Science 2022-11-01 Yanzhu Guo , Chloé Clavel , Moussa Kamal Eddine , Michalis Vazirgiannis

Large Language Models (LLMs) have demonstrated remarkable capability in a variety of NLP tasks. However, LLMs are also prone to generate nonfactual content. Uncertainty Quantification (UQ) is pivotal in enhancing our understanding of a…

Computation and Language · Computer Science 2024-10-07 Caiqi Zhang , Fangyu Liu , Marco Basaldella , Nigel Collier

Recent studies have investigated utilizing Knowledge Graphs (KGs) to enhance Quesetion Answering (QA) performance of Large Language Models (LLMs), yet structured KG verbalization remains challengin. Existing methods, such as triple-form or…

Computation and Language · Computer Science 2024-10-10 Sungho Ko , Hyunjin Cho , Hyungjoo Chae , Jinyoung Yeo , Dongha Lee

Query-focused summarization (QFS) is the task of generating a summary in response to a user-written query. Despite its user-oriented nature, there has been limited work in QFS in explicitly considering a user's understanding of a generated…

Artificial Intelligence · Computer Science 2024-11-12 Cesare Spinoso-Di Piano , Jackie Chi Kit Cheung

Question answering (QA) can only make progress if we know if an answer is correct, but current answer correctness (AC) metrics struggle with verbose, free-form answers from large language models (LLMs). There are two challenges with current…

Computation and Language · Computer Science 2024-10-15 Zongxia Li , Ishani Mondal , Yijun Liang , Huy Nghiem , Jordan Lee Boyd-Graber

While the Question Generation (QG) task has been increasingly adopted in educational assessments, its evaluation remains limited by approaches that lack a clear connection to the educational values of test items. In this work, we introduce…

Computation and Language · Computer Science 2025-06-23 Bang Nguyen , Tingting Du , Mengxia Yu , Lawrence Angrave , Meng Jiang

Recent works in open-domain question answering (QA) have explored generating context passages from large language models (LLMs), replacing the traditional retrieval step in the QA pipeline. However, it is not well understood why generated…

Computation and Language · Computer Science 2023-10-30 Yejoon Lee , Philhoon Oh , James Thorne

The generalization problem on KBQA has drawn considerable attention. Existing research suffers from the generalization issue brought by the entanglement in the coarse-grained modeling of the logical expression, or inexecutability issues due…

Artificial Intelligence · Computer Science 2023-06-27 Lingxi Zhang , Jing Zhang , Yanling Wang , Shulin Cao , Xinmei Huang , Cuiping Li , Hong Chen , Juanzi Li

Visual Question Answering (VQA) has been a popular task that combines vision and language, with numerous relevant implementations in literature. Even though there are some attempts that approach explainability and robustness issues in VQA…

Computation and Language · Computer Science 2024-05-06 Theodoti Stoikou , Maria Lymperaiou , Giorgos Stamou

Grounded text generation systems often generate text that contains factual inconsistencies, hindering their real-world applicability. Automatic factual consistency evaluation may help alleviate this limitation by accelerating evaluation…

Large language models (LLMs) frequently hallucinate, limiting their reliability in knowledge-intensive applications. Retrieval-augmented generation (RAG) and conformal factuality have emerged as potential ways to address this limitation.…

Artificial Intelligence · Computer Science 2026-03-18 Yi Chen , Daiwei Chen , Sukrut Madhav Chikodikar , Caitlyn Heqi Yin , Ramya Korlakai Vinayak

Previous studies have relied on existing question-answering benchmarks to evaluate the knowledge stored in large language models (LLMs). However, this approach has limitations regarding factual knowledge coverage, as it mostly focuses on…

Computation and Language · Computer Science 2023-10-31 Linhao Luo , Thuy-Trang Vu , Dinh Phung , Gholamreza Haffari

Today the pre-trained language models achieve great success for question generation (QG) task and significantly outperform traditional sequence-to-sequence approaches. However, the pre-trained models treat the input passage as a flat…

Computation and Language · Computer Science 2022-09-12 Zichen Wu , Xin Jia , Fanyi Qu , Yunfang Wu

Retriever-augmented instruction-following models are attractive alternatives to fine-tuned approaches for information-seeking tasks such as question answering (QA). By simply prepending retrieved documents in its input along with an…

Computation and Language · Computer Science 2024-04-18 Vaibhav Adlakha , Parishad BehnamGhader , Xing Han Lu , Nicholas Meade , Siva Reddy

Question Answering (QA) is an important part of tasks like text classification through information gathering. These are finding increasing use in sectors like healthcare, customer support, legal services, etc., to collect and classify…

Computation and Language · Computer Science 2024-11-12 Priya Mishra , Suraj Racha , Kaustubh Ponkshe , Adit Akarsh , Ganesh Ramakrishnan

Clinical question answering (QA) aims to automatically answer questions from medical professionals based on clinical texts. Studies show that neural QA models trained on one corpus may not generalize well to new clinical texts from a…

Computation and Language · Computer Science 2021-12-14 Xiang Yue , Xinliang Frederick Zhang , Ziyu Yao , Simon Lin , Huan Sun

High-quality quantum state generation is essential for advanced quantum information processing, including quantum communication, quantum sensing, and quantum computing. In practice, various error sources degrade the quality of quantum…

Multimodal summarization aims to generate a concise summary based on the input text and image. However, the existing methods potentially suffer from unfactual output. To evaluate the factuality of multimodal summarization models, we propose…

Computation and Language · Computer Science 2025-12-01 Yue Zhang , Jingxuan Zuo , Ke Su , Liqiang Jing

Question answering over knowledge bases (KBQA) has become a popular approach to help users extract information from knowledge bases. Although several systems exist, choosing one suitable for a particular application scenario is difficult.…

Computation and Language · Computer Science 2022-11-16 Khiem Vinh Tran , Hao Phu Phan , Khang Nguyen Duc Quach , Ngan Luu-Thuy Nguyen , Jun Jo , Thanh Tam Nguyen
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