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In this paper, we tackle the emerging challenge of unintended harmful content generation in Large Language Models (LLMs) with a novel dual-stage optimisation technique using adversarial fine-tuning. Our two-pronged approach employs an…

Computation and Language · Computer Science 2023-08-29 Charles O'Neill , Jack Miller , Ioana Ciuca , Yuan-Sen Ting , Thang Bui

With the rapid advancement of Transformer-based Large Language Models (LLMs), generative recommendation has shown great potential in enhancing both the accuracy and semantic understanding of modern recommender systems. Compared to LLMs, the…

Information Retrieval · Computer Science 2025-08-19 Xiang Gao , Tianyuan Liu , Yisha Li , Jingxin Liu , Lexi Gao , Xin Li , Haiyang Lu , Liyin Hong

Modeling spatial-temporal interactions among neighboring agents is at the heart of multi-agent problems such as motion forecasting and crowd navigation. Despite notable progress, it remains unclear to which extent modern representations can…

Machine Learning · Computer Science 2025-06-12 Ahmad Rahimi , Po-Chien Luan , Yuejiang Liu , Frano Rajič , Alexandre Alahi

Real-world vision models in dynamic environments face rapid shifts in domain distributions, leading to decreased recognition performance. Using unlabeled test data, continuous test-time adaptation (CTTA) directly adjusts a pre-trained…

Computer Vision and Pattern Recognition · Computer Science 2025-01-28 Sarthak Kumar Maharana , Baoming Zhang , Yunhui Guo

Multimodalpersonalityunderstandingplaysacriticalroleinhuman centered artificial intelligence. Previous work mainly focus on learn-ing rich multimodal representations for video personality under standing. However, they often suffer from…

Artificial Intelligence · Computer Science 2026-05-08 Yangfu Zhu , Zitong Han , Nianwen Ning , Yuting Wei , Yuandong Wang , Hang Feng , Zhenzhou Shao

Attributing answers to source documents is an approach used to enhance the verifiability of a model's output in retrieval augmented generation (RAG). Prior work has mainly focused on improving and evaluating the attribution quality of large…

Computation and Language · Computer Science 2025-07-15 Amin Abolghasemi , Leif Azzopardi , Seyyed Hadi Hashemi , Maarten de Rijke , Suzan Verberne

Generative AI has significantly advanced text-driven image generation, but it still faces challenges in producing outputs that consistently align with evolving user preferences and intents, particularly in multi-turn dialogue scenarios. In…

Computer Vision and Pattern Recognition · Computer Science 2025-07-09 Kun Li , Jianhui Wang , Miao Zhang , Xueqian Wang

Latency is inherent in almost all real-world networked applications. In this paper, we propose a distributed allocation strategy over multi-agent networks with delayed communications. The state of each agent (or node) represents its share…

Systems and Control · Electrical Eng. & Systems 2022-08-31 Mohammadreza Doostmohammadian , Wei Jiang , Themistoklis Charalambous

Collaborative game-based learning environments offer rich opportunities for small-group knowledge construction, yet automatically predicting student collaboration satisfaction remains challenging. A critical barrier is modality degradation:…

Machine Learning · Computer Science 2026-05-19 Wen-Hsin Tsai , Chia-Ming Lee , Yuk-Ying Tung

Conversion rate (CVR) prediction is a core component of online advertising systems, where the attribution mechanisms-rules for allocating conversion credit across user touchpoints-fundamentally determine label generation and model…

Machine Learning · Computer Science 2025-08-22 Sishuo Chen , Zhangming Chan , Xiang-Rong Sheng , Lei Zhang , Sheng Chen , Chenghuan Hou , Han Zhu , Jian Xu , Bo Zheng

Reinforcement learning (RL) for large language models (LLMs) increasingly relies on sparse, outcome-level rewards -- yet determining which actions within a long trajectory caused the outcome remains difficult. This credit assignment (CA)…

Computation and Language · Computer Science 2026-04-14 Chenchen Zhang

Multi-task learning (MTL) models have demonstrated impressive results in computer vision, natural language processing, and recommender systems. Even though many approaches have been proposed, how well these approaches balance different…

Machine Learning · Computer Science 2024-05-06 Enneng Yang , Junwei Pan , Ximei Wang , Haibin Yu , Li Shen , Xihua Chen , Lei Xiao , Jie Jiang , Guibing Guo

Generative AI has significantly changed industries by enabling text-driven image generation, yet challenges remain in achieving high-resolution outputs that align with fine-grained user preferences. Consequently, multi-round interactions…

Computer Vision and Pattern Recognition · Computer Science 2025-04-28 Kun Li , Jianhui Wang , Yangfan He , Xinyuan Song , Ruoyu Wang , Hongyang He , Wenxin Zhang , Jiaqi Chen , Keqin Li , Sida Li , Miao Zhang , Tianyu Shi , Xueqian Wang

Accurate multi-turn intent classification is essential for advancing conversational AI systems. However, challenges such as the scarcity of comprehensive datasets and the complexity of contextual dependencies across dialogue turns hinder…

Computation and Language · Computer Science 2024-11-20 Junhua Liu , Yong Keat Tan , Bin Fu , Kwan Hui Lim

Domain shift in histopathology, often caused by differences in acquisition processes or data sources, poses a major challenge to the generalization ability of deep learning models. Existing methods primarily rely on modeling statistical…

Computer Vision and Pattern Recognition · Computer Science 2026-03-30 Kieu-Anh Truong Thi , Huy-Hieu Pham , Duc-Trong Le

Studying adversarial attacks on artificial intelligence (AI) systems helps discover model shortcomings, enabling the construction of a more robust system. Most existing adversarial attack methods only concentrate on single-task single-model…

Computer Vision and Pattern Recognition · Computer Science 2024-07-19 Qingyuan Zeng , Yunpeng Gong , Min Jiang

Continual Test-Time Adaptation (CTTA) aims to empower perception systems to handle dynamic distribution shifts encountered after deployment. Existing methods predominantly follow a backward-alignment paradigm, which rigidly aligns incoming…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Zhilin Zhu , Yabin Wang , Zhiheng Ma , Yaguang Song , Yaowei Wang , Xiaopeng Hong

Reinforcement learning (RL) for large language models (LLMs) has shown strong performance in single-turn tasks, but extending it to multi-turn interaction remains challenging due to sparse rewards and poor per-turn credit assignment. In…

Computation and Language · Computer Science 2026-05-06 Naifan Zhang , Ruihan Sun , Jinwei Su , Hengjie Yang , Zhengyuan Pan , Zhaohan Chen , Xiaofan Zhang

Diffusion models (DMs) have recently demonstrated remarkable generation capability. However, their training generally requires huge computational resources and large-scale datasets. To solve these, recent studies empower DMs with the…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Hao Fang , Xiaohang Sui , Hongyao Yu , Kuofeng Gao , Jiawei Kong , Sijin Yu , Bin Chen , Shu-Tao Xia

Training data attribution (TDA) methods aim to identify which training examples influence a model's predictions on specific test data most. By quantifying these influences, TDA supports critical applications such as data debugging,…

Machine Learning · Computer Science 2025-05-30 Xingyuan Pan , Chenlu Ye , Joseph Melkonian , Jiaqi W. Ma , Tong Zhang