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Retrieval Augmented Generation (RAG) has gradually emerged as a promising paradigm for enhancing the accuracy and factual consistency of content generated by large language models (LLMs). However, existing RAG studies primarily focus on…

信息检索 · 计算机科学 2025-07-24 Qikai Wei , Huansheng Ning , Chunlong Han , Jianguo Ding

Text response generation for multimodal task-oriented dialog systems, which aims to generate the proper text response given the multimodal context, is an essential yet challenging task. Although existing efforts have achieved compelling…

计算与语言 · 计算机科学 2024-05-14 Xiaolin Chen , Xuemeng Song , Liqiang Jing , Shuo Li , Linmei Hu , Liqiang Nie

Continual learning in computer vision faces the critical challenge of catastrophic forgetting, where models struggle to retain prior knowledge while adapting to new tasks. Although recent studies have attempted to leverage the…

计算机视觉与模式识别 · 计算机科学 2025-03-25 Xusheng Cao , Haori Lu , Linlan Huang , Fei Yang , Xialei Liu , Ming-Ming Cheng

We study the task of long-form opinion text generation, which faces at least two distinct challenges. First, existing neural generation models fall short of coherence, thus requiring efficient content planning. Second, diverse types of…

计算与语言 · 计算机科学 2021-06-03 Xinyu Hua , Ashwin Sreevatsa , Lu Wang

We study the problem of joint question answering (QA) and question generation (QG) in this paper. Our intuition is that QA and QG have intrinsic connections and these two tasks could improve each other. On one side, the QA model judges…

计算与语言 · 计算机科学 2017-08-07 Duyu Tang , Nan Duan , Tao Qin , Zhao Yan , Ming Zhou

Visual Question Generation (VQG) research focuses predominantly on natural images while neglecting the diagram, which is a critical component in educational materials. To meet the needs of pedagogical assessment, we propose the…

计算机视觉与模式识别 · 计算机科学 2025-09-09 Xinyu Zhang , Lingling Zhang , Yanrui Wu , Muye Huang , Wenjun Wu , Bo Li , Shaowei Wang , Basura Fernando , Jun Liu

This paper describes the solutions of the Dianping-Trust-Safety team for the META CRAG-MM challenge. The challenge requires building a comprehensive retrieval-augmented generation system capable for multi-modal multi-turn question…

人工智能 · 计算机科学 2026-01-15 Chenliang Zhang , Lin Wang , Yuanyuan Lu , Yusheng Qi , Kexin Wang , Peixu Hou , Wenshi Chen

This paper focuses on the dynamic optimization of the Retrieval-Augmented Generation (RAG) architecture. It proposes a state-aware dynamic knowledge retrieval mechanism to enhance semantic understanding and knowledge scheduling efficiency…

计算与语言 · 计算机科学 2025-04-29 Jacky He , Guiran Liu , Binrong Zhu , Hanlu Zhang , Hongye Zheng , Xiaokai Wang

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…

计算与语言 · 计算机科学 2023-10-24 Zehua Xia , Qi Gou , Bowen Yu , Haiyang Yu , Fei Huang , Yongbin Li , Cam-Tu Nguyen

Despite the strong abilities, large language models (LLMs) still suffer from hallucinations and reliance on outdated knowledge, raising concerns in knowledge-intensive tasks. Graph-based retrieval-augmented generation (GRAG) enriches LLMs…

Retrieval-Augmented Generation (RAG) aims to generate more reliable and accurate responses, by augmenting large language models (LLMs) with the external vast and dynamic knowledge. Most previous work focuses on using RAG for single-round…

人工智能 · 计算机科学 2024-03-28 Linhao Ye , Zhikai Lei , Jianghao Yin , Qin Chen , Jie Zhou , Liang He

With the rapid development of artificial intelligence technology, especially the increasingly widespread application of question-and-answer systems, high-quality question generation has become a key component in supporting the development…

计算与语言 · 计算机科学 2024-09-30 Zhenhong Zhang , Jiajing Chen , Weiyan Shi , Lingjie Yi , Chihang Wang , Qian Yu

Existing knowledge-grounded dialogue systems typically use finetuned versions of a pretrained language model (LM) and large-scale knowledge bases. These models typically fail to generalize on topics outside of the knowledge base, and…

计算与语言 · 计算机科学 2022-03-17 Zihan Liu , Mostofa Patwary , Ryan Prenger , Shrimai Prabhumoye , Wei Ping , Mohammad Shoeybi , Bryan Catanzaro

Pre-trained Generative models such as BART, T5, etc. have gained prominence as a preferred method for text generation in various natural language processing tasks, including abstractive long-form question answering (QA) and summarization.…

计算与语言 · 计算机科学 2023-11-07 Prabir Mallick , Tapas Nayak , Indrajit Bhattacharya

We address the product question generation task. For a given product description, our goal is to generate questions that reflect potential user information needs that are either missing or not well covered in the description. Moreover, we…

计算与语言 · 计算机科学 2022-07-07 Haggai Roitman , Uriel Singer , Yotam Eshel , Alexander Nus , Eliyahu Kiperwasser

Recent advances in large-scale pre-training such as GPT-3 allow seemingly high quality text to be generated from a given prompt. However, such generation systems often suffer from problems of hallucinated facts, and are not inherently…

计算与语言 · 计算机科学 2022-02-25 Yizhe Zhang , Siqi Sun , Xiang Gao , Yuwei Fang , Chris Brockett , Michel Galley , Jianfeng Gao , Bill Dolan

Creating multiple-choice questions to assess reading comprehension of a given article involves generating question-answer pairs (QAPs) and adequate distractors. We present two methods to tackle the challenge of QAP generations: (1) A…

计算与语言 · 计算机科学 2023-03-28 Cheng Zhang

Numerical reasoning over hybrid data containing tables and long texts has recently received research attention from the AI community. To generate an executable reasoning program consisting of math and table operations to answer a question,…

计算与语言 · 计算机科学 2022-11-24 Xiao Li , Yin Zhu , Sichen Liu , Jiangzhou Ju , Yuzhong Qu , Gong Cheng

Retrieval augmented language models have recently become the standard for knowledge intensive tasks. Rather than relying purely on latent semantics within the parameters of large neural models, these methods enlist a semi-parametric memory…

计算与语言 · 计算机科学 2023-01-24 Wenhu Chen , Pat Verga , Michiel de Jong , John Wieting , William Cohen

Recent question generation (QG) approaches often utilize the sequence-to-sequence framework (Seq2Seq) to optimize the log-likelihood of ground-truth questions using teacher forcing. However, this training objective is inconsistent with…

计算与语言 · 计算机科学 2020-11-03 Yuxi Xie , Liangming Pan , Dongzhe Wang , Min-Yen Kan , Yansong Feng