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Large Language Models (LLMs) have demonstrated significant capabilities across numerous application domains. A key challenge is to keep these models updated with latest available information, which limits the true potential of these models…

Computation and Language · Computer Science 2024-09-20 Muhammad Asif Ali , Nawal Daftardar , Mutayyaba Waheed , Jianbin Qin , Di Wang

We propose a generative machine comprehension model that learns jointly to ask and answer questions based on documents. The proposed model uses a sequence-to-sequence framework that encodes the document and generates a question (answer)…

Computation and Language · Computer Science 2017-06-06 Tong Wang , Xingdi Yuan , Adam Trischler

While conversing with chatbots, humans typically tend to ask many questions, a significant portion of which can be answered by referring to large-scale knowledge graphs (KG). While Question Answering (QA) and dialog systems have been…

Computation and Language · Computer Science 2018-10-05 Amrita Saha , Vardaan Pahuja , Mitesh M. Khapra , Karthik Sankaranarayanan , Sarath Chandar

Learning multi-hop reasoning has been a key challenge for reading comprehension models, leading to the design of datasets that explicitly focus on it. Ideally, a model should not be able to perform well on a multi-hop question answering…

Computation and Language · Computer Science 2019-04-30 Jifan Chen , Greg Durrett

The ability of generative language models (GLMs) to generate text has improved considerably in the last few years, enabling their use for generative data augmentation. In this work, we propose CONDA, an approach to further improve GLMs'…

Computation and Language · Computer Science 2022-10-26 Dheeraj Mekala , Tu Vu , Timo Schick , Jingbo Shang

Despite the success of generative pre-trained language models on a series of text generation tasks, they still suffer in cases where reasoning over underlying commonsense knowledge is required during generation. Existing approaches that…

Computation and Language · Computer Science 2020-09-25 Haozhe Ji , Pei Ke , Shaohan Huang , Furu Wei , Xiaoyan Zhu , Minlie Huang

Large pre-trained language models (LMs) have been shown to perform surprisingly well when fine-tuned on tasks that require commonsense and world knowledge. However, in end-to-end architectures, it is difficult to explain what is the…

Computation and Language · Computer Science 2020-04-14 Veronica Latcinnik , Jonathan Berant

Large Language Models (LLMs) and Knowledge Graphs (KGs) offer a promising approach to robust and explainable Question Answering (QA). While LLMs excel at natural language understanding, they suffer from knowledge gaps and hallucinations.…

Machine Learning · Computer Science 2025-04-15 Jasper Linders , Jakub M. Tomczak

Multi-hop Question Generation (QG) effectively evaluates reasoning but remains confined to text; Video Question Generation (VideoQG) is limited to zero-hop questions over single segments. To address this, we introduce VideoChain, a novel…

Computer Vision and Pattern Recognition · Computer Science 2025-11-12 Arpan Phukan , Anupam Pandey , Deepjyoti Bodo , Asif Ekbal

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

Multi-hop question answering over hybrid table-text data requires retrieving and reasoning across multiple evidence pieces from large corpora, but standard Retrieval-Augmented Generation (RAG) pipelines process documents as flat ranked…

Computation and Language · Computer Science 2026-01-13 Mohamed Sharafath , Aravindh Annamalai , Ganesh Murugan , Aravindakumar Venugopalan

The ability to ask questions is important in both human and machine intelligence. Learning to ask questions helps knowledge acquisition, improves question-answering and machine reading comprehension tasks, and helps a chatbot to keep the…

Computation and Language · Computer Science 2020-03-06 Bang Liu , Haojie Wei , Di Niu , Haolan Chen , Yancheng He

This paper addresses the problem of generating questions from a given context and an answer, specifically focusing on questions that require multi-hop reasoning across an extended context. Previous studies have suggested that key phrase…

Computation and Language · Computer Science 2023-10-24 Zehua Xia , Qi Gou , Bowen Yu , Haiyang Yu , Fei Huang , Yongbin Li , Cam-Tu Nguyen

The zero-shot chain of thought (CoT) approach is often used in question answering (QA) by language models (LMs) for tasks that require multiple reasoning steps. However, some QA tasks hinge more on accessing relevant knowledge than on…

Computation and Language · Computer Science 2025-05-27 Jiacan Yu , Hannah An , Lenhart K. Schubert

Closed-book question answering (QA) requires a model to directly answer an open-domain question without access to any external knowledge. Prior work on closed-book QA either directly finetunes or prompts a pretrained language model (LM) to…

Computation and Language · Computer Science 2023-04-28 Dan Su , Mostofa Patwary , Shrimai Prabhumoye , Peng Xu , Ryan Prenger , Mohammad Shoeybi , Pascale Fung , Anima Anandkumar , Bryan Catanzaro

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

Multimodal reasoning is a challenging task that requires models to reason across multiple modalities to answer questions. Existing approaches have made progress by incorporating language and visual modalities into a two-stage reasoning…

Artificial Intelligence · Computer Science 2024-07-04 Cheng Tan , Jingxuan Wei , Zhangyang Gao , Linzhuang Sun , Siyuan Li , Ruifeng Guo , Bihui Yu , Stan Z. Li

Many models that leverage knowledge graphs (KGs) have recently demonstrated remarkable success in question answering (QA) tasks. In the real world, many facts contained in KGs are time-constrained thus temporal KGQA has received increasing…

Computation and Language · Computer Science 2024-02-21 Chao Xue , Di Liang , Pengfei Wang , Jing Zhang

KBQA is a task that requires to answer questions by using semantic structured information in knowledge base. Previous work in this area has been restricted due to the lack of large semantic parsing dataset and the exponential growth of…

Computation and Language · Computer Science 2022-01-28 Meihao Fan , Lei Zhang , Siyao Xiao , Yuru Liang

Recent advances in large language models (LLMs) have significantly improved multi-hop question answering (QA) through direct Chain-of-Thought (CoT) reasoning. However, the irreversible nature of CoT leads to error accumulation, making it…

Artificial Intelligence · Computer Science 2025-05-30 Xinjie Zhao , Fan Gao , Xingyu Song , Yingjian Chen , Rui Yang , Yanran Fu , Yuyang Wang , Yusuke Iwasawa , Yutaka Matsuo , Irene Li