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Fact-centric question answering (QA) often requires access to multiple, heterogeneous, information sources. By jointly considering several sources like a knowledge base (KB), a text collection, and tables from the web, QA systems can…

Information Retrieval · Computer Science 2023-08-22 Philipp Christmann , Rishiraj Saha Roy , Gerhard Weikum

With social media becoming increasingly pop-ular on which lots of news and real-time eventsare reported, developing automated questionanswering systems is critical to the effective-ness of many applications that rely on real-time knowledge.…

Computation and Language · Computer Science 2019-07-16 Wenhan Xiong , Jiawei Wu , Hong Wang , Vivek Kulkarni , Mo Yu , Shiyu Chang , Xiaoxiao Guo , William Yang Wang

We present a comprehensive study of chart visual question-answering(QA) task, to address the challenges faced in comprehending and extracting data from chart visualizations within documents. Despite efforts to tackle this problem using…

Computer Vision and Pattern Recognition · Computer Science 2023-08-07 Saleem Ahmed , Bhavin Jawade , Shubham Pandey , Srirangaraj Setlur , Venu Govindaraju

Question Answering (QA) is in increasing demand as the amount of information available online and the desire for quick access to this content grows. A common approach to QA has been to fine-tune a pretrained language model on a…

Computation and Language · Computer Science 2020-04-27 Alexander R. Fabbri , Patrick Ng , Zhiguo Wang , Ramesh Nallapati , Bing Xiang

Retrieval-Augmented Generation (RAG) has demonstrated considerable effectiveness in open-domain question answering. However, when applied to heterogeneous documents, comprising both textual and tabular components, existing RAG approaches…

Computation and Language · Computer Science 2025-10-01 Xiaohan Yu , Pu Jian , Chong Chen

Real-world Table-Text question answering (QA) tasks require models that can reason across long text and source tables, traversing multiple hops and executing complex operations such as aggregation. Yet existing benchmarks are small,…

Computation and Language · Computer Science 2026-02-27 Sungho Park , Jueun Kim , Wook-Shin Han

Charts are very popular to analyze data and convey important insights. People often analyze visualizations to answer open-ended questions that require explanatory answers. Answering such questions are often difficult and time-consuming as…

Machine Learning · Computer Science 2022-10-14 Shankar Kantharaj , Xuan Long Do , Rixie Tiffany Ko Leong , Jia Qing Tan , Enamul Hoque , Shafiq Joty

Medical multiple-choice question answering (MCQA) is particularly difficult. Questions may describe patient symptoms and ask for the correct diagnosis, which requires domain knowledge and complex reasoning. Standard language modeling…

Computation and Language · Computer Science 2023-03-14 Damien Sileo , Kanimozhi Uma , Marie-Francine Moens

With the rise of large-scale pre-trained language models, open-domain question-answering (ODQA) has become an important research topic in NLP. Based on the popular pre-training fine-tuning approach, we posit that an additional in-domain…

Computation and Language · Computer Science 2022-05-03 Patrick Huber , Armen Aghajanyan , Barlas Oğuz , Dmytro Okhonko , Wen-tau Yih , Sonal Gupta , Xilun Chen

Question answering (QA) systems are now available through numerous commercial applications for a wide variety of domains, serving millions of users that interact with them via speech interfaces. However, current benchmarks in QA research do…

Computation and Language · Computer Science 2021-09-27 Fahim Faisal , Sharlina Keshava , Md Mahfuz ibn Alam , Antonios Anastasopoulos

Natural Question Answering (QA) datasets play a crucial role in evaluating the capabilities of large language models (LLMs), ensuring their effectiveness in real-world applications. Despite the numerous QA datasets that have been developed…

Recent advancements in language models (LMs) have notably enhanced their ability to reason with tabular data, primarily through program-aided mechanisms that manipulate and analyze tables. However, these methods often require the entire…

Tabular data embedded in PDF files, web pages, and other types of documents is prevalent in various domains. These tables, which we call human-centric tables (HCTs for short), are dense in information but often exhibit complex structural…

We present the first end-to-end, transformer-based table question answering (QA) system that takes natural language questions and massive table corpus as inputs to retrieve the most relevant tables and locate the correct table cells to…

Computation and Language · Computer Science 2021-06-10 Feifei Pan , Mustafa Canim , Michael Glass , Alfio Gliozzo , Peter Fox

In the realm of natural language processing, the understanding of tabular data has perpetually stood as a focal point of scholarly inquiry. The emergence of expansive language models, exemplified by the likes of ChatGPT, has ushered in a…

Computation and Language · Computer Science 2023-08-29 Hengyuan Zhang , Peng Chang , Zongcheng Ji

Question Answering (QA) is a longstanding challenge in natural language processing. Existing QA works mostly focus on specific question types, knowledge domains, or reasoning skills. The specialty in QA research hinders systems from…

Computation and Language · Computer Science 2022-12-12 Wanjun Zhong , Yifan Gao , Ning Ding , Yujia Qin , Zhiyuan Liu , Ming Zhou , Jiahai Wang , Jian Yin , Nan Duan

Large-scale language models like ChatGPT and GPT-4 have gained attention for their impressive conversational and generative capabilities. However, the creation of supervised paired question-answering data for instruction tuning presents…

Computation and Language · Computer Science 2023-05-23 Xuanyu Zhang , Qing Yang

Factuality in Large Language Models (LLMs) is a persistent challenge. Current benchmarks often assess short factual answers, overlooking the critical ability to generate structured, multi-record tabular outputs from parametric knowledge. We…

Computation and Language · Computer Science 2025-05-28 Dario Satriani , Enzo Veltri , Donatello Santoro , Paolo Papotti

Existing question answering (QA) techniques are created mainly to answer questions asked by humans. But in educational applications, teachers often need to decide what questions they should ask, in order to help students to improve their…

Computation and Language · Computer Science 2022-03-29 Bingsheng Yao , Dakuo Wang , Tongshuang Wu , Zheng Zhang , Toby Jia-Jun Li , Mo Yu , Ying Xu

Question Answering (QA) systems are becoming the inspiring model for the future of search engines. While recently, underlying datasets for QA systems have been promoted from unstructured datasets to structured datasets with highly…

Information Retrieval · Computer Science 2016-02-17 Saeedeh Shekarpour , Denis Lukovnikov , Ashwini Jaya Kumar , Kemele Endris , Kuldeep Singh , Harsh Thakkar , Christoph Lange