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This paper presents a novel approach based on semantic parsing to improve the performance of Knowledge Base Question Answering (KBQA). Specifically, we focus on how to select an optimal query graph from a candidate set so as to retrieve the…

计算与语言 · 计算机科学 2022-04-28 Yonghui Jia , Wenliang Chen

Knowledge-based Visual Question Answering (KVQA) requires external knowledge beyond the visible content to answer questions about an image. This ability is challenging but indispensable to achieve general VQA. One limitation of existing…

人工智能 · 计算机科学 2020-11-04 Jing Yu , Zihao Zhu , Yujing Wang , Weifeng Zhang , Yue Hu , Jianlong Tan

Question Answering (QA) tasks requiring information from multiple documents often rely on a retrieval model to identify relevant information for reasoning. The retrieval model is typically trained to maximize the likelihood of the labeled…

计算与语言 · 计算机科学 2021-09-10 Ansong Ni , Matt Gardner , Pradeep Dasigi

An essential requirement for a real-world Knowledge Base Question Answering (KBQA) system is the ability to detect the answerability of questions when generating logical forms. However, state-of-the-art KBQA models assume all questions to…

计算与语言 · 计算机科学 2024-11-05 Prayushi Faldu , Indrajit Bhattacharya , Mausam

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…

计算与语言 · 计算机科学 2021-02-11 Wenhu Chen , Ming-Wei Chang , Eva Schlinger , William Wang , William W. Cohen

Visual Question Answering (VQA) has benefited from increasingly sophisticated models, but has not enjoyed the same level of engagement in terms of data creation. In this paper, we propose a method that automatically derives VQA examples at…

计算机视觉与模式识别 · 计算机科学 2022-05-05 Soravit Changpinyo , Doron Kukliansky , Idan Szpektor , Xi Chen , Nan Ding , Radu Soricut

Conversational Question Answering (CQA) aims to answer questions contained within dialogues, which are not easily interpretable without context. Developing a model to rewrite conversational questions into self-contained ones is an emerging…

计算与语言 · 计算机科学 2022-11-02 Zhiyu Chen , Jie Zhao , Anjie Fang , Besnik Fetahu , Oleg Rokhlenko , Shervin Malmasi

Visual Question Answering (VQA) focuses on providing answers to natural language questions by utilizing information from images. Although cutting-edge multimodal large language models (MLLMs) such as GPT-4o achieve strong performance on VQA…

计算机视觉与模式识别 · 计算机科学 2025-07-09 Zhengxuan Zhang , Yin Wu , Yuyu Luo , Nan Tang

Neural abstractive summarization models are prone to generate content inconsistent with the source document, i.e. unfaithful. Existing automatic metrics do not capture such mistakes effectively. We tackle the problem of evaluating…

计算与语言 · 计算机科学 2020-10-13 Esin Durmus , He He , Mona Diab

Answering questions related to art pieces (paintings) is a difficult task, as it implies the understanding of not only the visual information that is shown in the picture, but also the contextual knowledge that is acquired through the study…

计算机视觉与模式识别 · 计算机科学 2020-08-31 Noa Garcia , Chentao Ye , Zihua Liu , Qingtao Hu , Mayu Otani , Chenhui Chu , Yuta Nakashima , Teruko Mitamura

Handwritten Text Recognition has achieved an impressive performance in public benchmarks. However, due to the high inter- and intra-class variability between handwriting styles, such recognizers need to be trained using huge volumes of…

计算机视觉与模式识别 · 计算机科学 2022-04-13 Lei Kang , Pau Riba , Marçal Rusiñol , Alicia Fornés , Mauricio Villegas

Question answering (QA) systems are designed to answer natural language questions. Visual QA (VQA) and Spoken QA (SQA) systems extend the textual QA system to accept visual and spoken input respectively. This work aims to create a system…

音频与语音处理 · 电气工程与系统科学 2025-05-30 Nimrod Shabtay , Zvi Kons , Avihu Dekel , Hagai Aronowitz , Ron Hoory , Assaf Arbelle

Video Question Answering (VQA) is a recent emerging challenging task in the field of Computer Vision. Several visual information retrieval techniques like Video Captioning/Description and Video-guided Machine Translation have preceded the…

计算机视觉与模式识别 · 计算机科学 2021-03-19 Devshree Patel , Ratnam Parikh , Yesha Shastri

The dependency between an adequate question formulation and correct answer selection is a very intriguing but still underexplored area. In this paper, we show that question rewriting (QR) of the conversational context allows to shed more…

计算与语言 · 计算机科学 2022-02-04 Svitlana Vakulenko , Shayne Longpre , Zhucheng Tu , Raviteja Anantha

Knowledge base question answering (KBQA) aims to answer user questions in natural language using rich human knowledge stored in large KBs. As current KBQA methods struggle with unseen knowledge base elements at test time,we introduce…

计算与语言 · 计算机科学 2025-09-11 Shengxiang Gao , Jey Han Lau , Jianzhong Qi

Existing Visual Question Answering (VQA) models have explored various visual relationships between objects in the image to answer complex questions, which inevitably introduces irrelevant information brought by inaccurate object detection…

计算机视觉与模式识别 · 计算机科学 2022-04-05 Yuxi Qian , Yuncong Hu , Ruonan Wang , Fangxiang Feng , Xiaojie Wang

Perceptual image quality assessment (IQA) is the task of predicting the visual quality of an image as perceived by a human observer. Current state-of-the-art techniques are based on deep representations trained in discriminative manner.…

图像与视频处理 · 电气工程与系统科学 2024-04-30 Simon Raviv , Gal Chechik

Recent advances in the healthcare industry have led to an abundance of unstructured data, making it challenging to perform tasks such as efficient and accurate information retrieval at scale. Our work offers an all-in-one scalable solution…

信息检索 · 计算机科学 2023-02-15 Shreya Saxena , Raj Sangani , Siva Prasad , Shubham Kumar , Mihir Athale , Rohan Awhad , Vishal Vaddina

In the fields of computer vision and natural language processing, multimodal chart question-answering, especially involving color, structure, and textless charts, poses significant challenges. Traditional methods, which typically involve…

计算机视觉与模式识别 · 计算机科学 2024-04-03 Jingxuan Wei , Nan Xu , Guiyong Chang , Yin Luo , BiHui Yu , Ruifeng Guo

Electronic health records (EHRs) hold significant value for research and applications. As a new way of information extraction, question answering (QA) can extract more flexible information than conventional methods and is more accessible to…

计算与语言 · 计算机科学 2024-02-20 Huaiyuan Ying , Sheng Yu