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Over the last twenty years, significant progress has been made in designing and implementing Question Answering (QA) systems. However, addressing complex questions, the answers to which are spread across multiple documents, remains a…

Computation and Language · Computer Science 2026-02-26 Sourav Saha , Dwaipayan Roy , Mandar Mitra

A key limitation in current datasets for multi-hop reasoning is that the required steps for answering the question are mentioned in it explicitly. In this work, we introduce StrategyQA, a question answering (QA) benchmark where the required…

Computation and Language · Computer Science 2021-01-08 Mor Geva , Daniel Khashabi , Elad Segal , Tushar Khot , Dan Roth , Jonathan Berant

Long-form question answering (LFQA) poses a challenge as it involves generating detailed answers in the form of paragraphs, which go beyond simple yes/no responses or short factual answers. While existing QA models excel in questions with…

Computation and Language · Computer Science 2023-11-17 Pritom Saha Akash , Kashob Kumar Roy , Lucian Popa , Kevin Chen-Chuan Chang

Knowledge Graph Question Answering (KGQA) systems are based on machine learning algorithms, requiring thousands of question-answer pairs as training examples or natural language processing pipelines that need module fine-tuning. In this…

Artificial Intelligence · Computer Science 2022-02-03 Daniel Vollmers , Rricha Jalota , Diego Moussallem , Hardik Topiwala , Axel-Cyrille Ngonga Ngomo , Ricardo Usbeck

We consider the problem of adapting neural paragraph-level question answering models to the case where entire documents are given as input. Our proposed solution trains models to produce well calibrated confidence scores for their results…

Computation and Language · Computer Science 2017-11-08 Christopher Clark , Matt Gardner

Bridging the semantic gap between image and question is an important step to improve the accuracy of the Visual Question Answering (VQA) task. However, most of the existing VQA methods focus on attention mechanisms or visual relations for…

Computer Vision and Pattern Recognition · Computer Science 2022-04-20 Binh X. Nguyen , Tuong Do , Huy Tran , Erman Tjiputra , Quang D. Tran , Anh Nguyen

Question answering (QA) over tables and text has gained much popularity over the years. Multi-hop table-text QA requires multiple hops between the table and text, making it a challenging QA task. Although several works have attempted to…

Computation and Language · Computer Science 2024-10-02 Jayetri Bardhan , Bushi Xiao , Daisy Zhe Wang

Chart question answering (CQA) is a task used for assessing chart comprehension, which is fundamentally different from understanding natural images. CQA requires analyzing the relationships between the textual and the visual components of a…

Computer Vision and Pattern Recognition · Computer Science 2022-07-12 Matan Levy , Rami Ben-Ari , Dani Lischinski

Spatio-temporal knowledge graphs (STKGs) enhance traditional KGs by integrating temporal and spatial annotations, enabling precise reasoning over questions with spatio-temporal dependencies. Despite their potential, research on…

Computation and Language · Computer Science 2025-12-17 Xinbang Dai , Huiying Li , Nan Hu , Yongrui Chen , Rihui Jin , Huikang Hu , Guilin Qi

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

We introduce GQA, a new dataset for real-world visual reasoning and compositional question answering, seeking to address key shortcomings of previous VQA datasets. We have developed a strong and robust question engine that leverages scene…

Computation and Language · Computer Science 2019-07-12 Drew A. Hudson , Christopher D. Manning

The complexities of table structures and question logic make table-based question answering (TQA) tasks challenging for Large Language Models (LLMs), often requiring task simplification before solving. This paper reveals that the reasoning…

Computation and Language · Computer Science 2025-04-22 Ruya Jiang , Chun Wang , Weihong Deng

In multi-modal reasoning tasks, such as visual question answering (VQA), there have been many modeling and training paradigms tested. Previous models propose different methods for the vision and language tasks, but which ones perform the…

Machine Learning · Computer Science 2021-03-23 Karan Samel , Zelin Zhao , Binghong Chen , Kuan Wang , Robin Luo , Le Song

Question Answering (QA) systems provide easy access to the vast amount of knowledge without having to know the underlying complex structure of the knowledge. The research community has provided ad hoc solutions to the key QA tasks,…

Computation and Language · Computer Science 2019-06-11 Somayeh Asadifar , Mohsen Kahani , Saeedeh Shekarpour

Visual Question Answering (VQA) aims to automatically answer natural language questions related to given image content. Existing VQA methods integrate vision modeling and language understanding to explore the deep semantics of the question.…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Xiangrui Su , Qi Zhang , Chongyang Shi , Jiachang Liu , Liang Hu

Extractive question answering (ExQA) is an essential task for Natural Language Processing. The dominant approach to ExQA is one that represents the input sequence tokens (question and passage) with a pre-trained transformer, then uses two…

Computation and Language · Computer Science 2022-10-28 Urchade Zaratiana , Niama El Khbir , Dennis Núñez , Pierre Holat , Nadi Tomeh , Thierry Charnois

We formalize a new modular variant of current question answering tasks by enforcing complete independence of the document encoder from the question encoder. This formulation addresses a key challenge in machine comprehension by requiring a…

Computation and Language · Computer Science 2018-09-27 Minjoon Seo , Tom Kwiatkowski , Ankur P. Parikh , Ali Farhadi , Hannaneh Hajishirzi

Many visual scenes contain text that carries crucial information, and it is thus essential to understand text in images for downstream reasoning tasks. For example, a deep water label on a warning sign warns people about the danger in the…

Computer Vision and Pattern Recognition · Computer Science 2020-03-26 Ronghang Hu , Amanpreet Singh , Trevor Darrell , Marcus Rohrbach

Current temporal knowledge graph question answering (TKGQA) methods primarily focus on implicit temporal constraints, lacking the capability of handling more complex temporal queries, and struggle with limited reasoning abilities and error…

Computation and Language · Computer Science 2025-09-05 Zhaoyan Gong , Juan Li , Zhiqiang Liu , Lei Liang , Huajun Chen , Wen Zhang

Video text-based visual question answering (Video TextVQA) task aims to answer questions about videos by leveraging the visual text appearing within the videos. This task poses significant challenges, requiring models to accurately perceive…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Haibin He , Qihuang Zhong , Juhua Liu , Bo Du , Peng Wang , Jing Zhang