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Although there have been automated approaches and tools supporting toxicity censorship for social posts, most of them focus on detection. Toxicity censorship is a complex process, wherein detection is just an initial task and a user can…

Human-Computer Interaction · Computer Science 2025-05-23 Yaqiong Li , Peng Zhang , Hansu Gu , Tun Lu , Siyuan Qiao , Yubo Shu , Yiyang Shao , Ning Gu

Large language models (LLMs) excel at natural language tasks but are limited by their static parametric knowledge, especially in knowledge-intensive task. Retrieval-augmented generation (RAG) mitigates this by integrating external…

Artificial Intelligence · Computer Science 2025-10-10 Yi Jiang , Lei Shen , Lujie Niu , Sendong Zhao , Wenbo Su , Bo Zheng

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…

Computation and Language · Computer Science 2022-07-07 Haggai Roitman , Uriel Singer , Yotam Eshel , Alexander Nus , Eliyahu Kiperwasser

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

Automatic diagnosis (AD), a critical application of AI in healthcare, employs machine learning techniques to assist doctors in gathering patient symptom information for precise disease diagnosis. The Transformer-based method utilizes an…

Computation and Language · Computer Science 2023-07-18 Huimin Wang , Wai-Chung Kwan , Kam-Fai Wong , Yefeng Zheng

Large Language Models (LLMs) have shown remarkable capabilities in general domains but often struggle with tasks requiring specialized knowledge. Conventional Retrieval-Augmented Generation (RAG) techniques typically retrieve external…

Computation and Language · Computer Science 2025-02-20 Yucheng Shi , Tianze Yang , Canyu Chen , Quanzheng Li , Tianming Liu , Xiang Li , Ninghao Liu

Drawing on recent advancements in diffusion models for text-to-image generation, identity-preserved personalization has made significant progress in accurately capturing specific identities with just a single reference image. However,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Yi Wu , Ziqiang Li , Heliang Zheng , Chaoyue Wang , Bin Li

Conversational search supports multi-turn user-system interactions to solve complex information needs. Different from the traditional single-turn ad-hoc search, conversational search encounters a more challenging problem of…

Information Retrieval · Computer Science 2024-07-30 Fengran Mo , Chen Qu , Kelong Mao , Yihong Wu , Zhan Su , Kaiyu Huang , Jian-Yun Nie

Abstractive summarization aims to generate a shorter version of the document covering all the salient points in a compact and coherent fashion. On the other hand, query-based summarization highlights those points that are relevant in the…

Computation and Language · Computer Science 2018-07-16 Preksha Nema , Mitesh Khapra , Anirban Laha , Balaraman Ravindran

Retrieval-augmented generation (RAG) incorporates external knowledge into large language models (LLMs), improving their adaptability to downstream tasks and enabling information updates. Surprisingly, recent empirical evidence demonstrates…

Computation and Language · Computer Science 2026-01-08 Yang Sun , Zhiyong Xie , Lixin Zou , Dan Luo , Min Tang , Xiangyu Zhao , Yunwei Zhao , Xixun Lin , Yanxiong Lu , Chenliang Li

Question Generation (QG) is an essential component of the automatic intelligent tutoring systems, which aims to generate high-quality questions for facilitating the reading practice and assessments. However, existing QG technologies…

Computation and Language · Computer Science 2020-12-14 Xin Jia , Wenjie Zhou , Xu Sun , Yunfang Wu

Taking advantage of the Web, many advertisements (ads for short) websites, which aspire to increase client's transactions and thus profits, offer searching tools which allow users to (i) post keyword queries to capture their information…

Databases · Computer Science 2011-12-01 Rani Qumsiyeh , Maria S. Pera , Yiu-Kai Ng

Modern QA systems entail retrieval-augmented generation (RAG) for accurate and trustworthy responses. However, the inherent gap between user queries and relevant documents hinders precise matching. We introduce QAEncoder, a training-free…

Computation and Language · Computer Science 2025-07-03 Zhengren Wang , Qinhan Yu , Shida Wei , Zhiyu Li , Feiyu Xiong , Xiaoxing Wang , Simin Niu , Hao Liang , Wentao Zhang

Question answering over visually rich documents (VRDs) requires reasoning not only over isolated content but also over documents' structural organization and cross-page dependencies. However, conventional retrieval-augmented generation…

Computation and Language · Computer Science 2026-03-03 Zhivar Sourati , Zheng Wang , Marianne Menglin Liu , Yazhe Hu , Mengqing Guo , Sujeeth Bharadwaj , Kyu Han , Tao Sheng , Sujith Ravi , Morteza Dehghani , Dan Roth

Extractive Question Answering (EQA) in Machine Reading Comprehension (MRC) often faces the challenge of dealing with semantically identical but format-variant inputs. Our work introduces a novel approach, called the ``Query Latent Semantic…

Computation and Language · Computer Science 2024-05-01 Sheng Ouyang , Jianzong Wang , Yong Zhang , Zhitao Li , Ziqi Liang , Xulong Zhang , Ning Cheng , Jing Xiao

Personalized conversational information retrieval (CIR) systems aim to satisfy users' complex information needs through multi-turn interactions by considering user profiles. However, not all search queries require personalization. The…

Information Retrieval · Computer Science 2025-08-13 Fengran Mo , Yuchen Hui , Yuxing Tian , Zhaoxuan Tan , Chuan Meng , Zhan Su , Kaiyu Huang , Jian-Yun Nie

This study addresses the critical need for enhanced situational awareness in autonomous driving (AD) by leveraging the contextual reasoning capabilities of large language models (LLMs). Unlike traditional perception systems that rely on…

Artificial Intelligence · Computer Science 2025-01-09 Xuewen Luo , Fan Ding , Fengze Yang , Yang Zhou , Junnyong Loo , Hwa Hui Tew , Chenxi Liu

Modern database workloads are highly predictable: query streams are dominated by recurring jobs and templates, even when their arrival order is not known in advance. This motivates a learning-augmented view of online differentially private…

Cryptography and Security · Computer Science 2026-05-05 Pranay Mundra , Adam Sealfon , Ziteng Sun , Quanquan C. Liu

Large language models (LLMs) have transformed natural language processing (NLP), enabling applications from content generation to decision support. Retrieval-Augmented Generation (RAG) improves LLMs by incorporating external knowledge but…

Cryptography and Security · Computer Science 2025-11-11 Zirui Cheng , Jikai Sun , Anjun Gao , Yueyang Quan , Zhuqing Liu , Xiaohua Hu , Minghong Fang

Retrieval-Augmented Generation (RAG) enhances the factual accuracy of large language models (LLMs) by conditioning outputs on external knowledge sources. However, when retrieval involves private or sensitive data, RAG systems are…

Computation and Language · Computer Science 2025-08-06 Haoran Wang , Xiongxiao Xu , Baixiang Huang , Kai Shu