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Modern recommender systems struggle to effectively utilize the rich, yet high-dimensional and noisy, multi-modal features generated by Large Language Models (LLMs). Treating these features as static inputs decouples them from the core…

Information Retrieval · Computer Science 2025-12-02 Jiahao Tian , Zhenkai Wang

Agentic reasoning enables large reasoning models (LRMs) to dynamically acquire external knowledge, but yet optimizing the retrieval process remains challenging due to the lack of dense, principled reward signals. In this paper, we introduce…

Artificial Intelligence · Computer Science 2026-02-10 Senkang Hu , Yong Dai , Yuzhi Zhao , Yihang Tao , Yu Guo , Zhengru Fang , Sam Tak Wu Kwong , Yuguang Fang

Sequential recommendation aims to capture user preferences by modeling sequential patterns in user-item interactions. However, these models are often influenced by noise such as accidental interactions, leading to suboptimal performance.…

Information Retrieval · Computer Science 2025-10-07 Tongzhou Wu , Yuhao Wang , Maolin Wang , Chi Zhang , Xiangyu Zhao

Interactive reinforcement learning agents use human feedback or instruction to help them learn in complex environments. Often, this feedback comes in the form of a discrete signal that is either positive or negative. While informative, this…

Artificial Intelligence · Computer Science 2021-04-13 Tasmia Tasrin , Md Sultan Al Nahian , Habarakadage Perera , Brent Harrison

Model-based offline reinforcement learning (RL) has emerged as a promising approach for recommender systems, enabling effective policy learning by interacting with frozen world models. However, the reward functions in these world models,…

Information Retrieval · Computer Science 2025-05-13 Yi Zhang , Ruihong Qiu , Xuwei Xu , Jiajun Liu , Sen Wang

Unsupervised learning is of growing interest because it unlocks the potential held in vast amounts of unlabelled data to learn useful representations for inference. Autoencoders, a form of generative model, may be trained by learning to…

Computer Vision and Pattern Recognition · Computer Science 2018-01-08 Antonia Creswell , Anil Anthony Bharath

Denoising is a crucial step in many video processing pipelines such as in interactive editing, where high quality, speed, and user control are essential. While recent approaches achieve significant improvements in denoising quality by…

Computer Vision and Pattern Recognition · Computer Science 2025-04-07 Xin Jin , Simon Niklaus , Zhoutong Zhang , Zhihao Xia , Chunle Guo , Yuting Yang , Jiawen Chen , Chongyi Li

Voice Assistants aim to fulfill user requests by choosing the best intent from multiple options generated by its Automated Speech Recognition and Natural Language Understanding sub-systems. However, voice assistants do not always produce…

Machine Learning · Computer Science 2020-05-05 Raviteja Anantha , Srinivas Chappidi , William Dawoodi

Recommender systems play a central role in numerous real-life applications, yet evaluating their performance remains a significant challenge due to the gap between offline metrics and online behaviors. Given the scarcity and limits (e.g.,…

Information Retrieval · Computer Science 2025-04-18 Nicolas Bougie , Narimasa Watanabe

Retrieval-augmented generation (RAG) has shown promising potential to enhance the accuracy and factuality of language models (LMs). However, imperfect retrievers or noisy corpora can introduce misleading or even erroneous information to the…

Computation and Language · Computer Science 2025-03-04 Zhepei Wei , Wei-Lin Chen , Yu Meng

Mobile GUI agents exhibit substantial potential to facilitate and automate the execution of user tasks on mobile phones. However, exist mobile GUI agents predominantly privilege autonomous operation and neglect the necessity of active user…

Artificial Intelligence · Computer Science 2025-10-10 Haitao Jia , Ming He , Zimo Yin , Likang Wu , Jianping Fan , Jitao Sang

Dynamic Data selection aims to accelerate training by prioritizing informative samples during online training. However, existing methods typically rely on task-specific handcrafted metrics or static/snapshot-based criteria to estimate…

Machine Learning · Computer Science 2026-05-14 Suorong Yang , Fangjian Su , Hai Gan , Ziqi Ye , Jie Li , Baile Xu , Furao Shen , Soujanya Poria

Owing to powerful natural language processing and generative capabilities, large language model (LLM) agents have emerged as a promising solution for enhancing recommendation systems via user simulation. However, in the realm of video…

Multimedia · Computer Science 2025-07-04 Siran Chen , Boyu Chen , Chenyun Yu , Yuxiao Luo , Ouyang Yi , Lei Cheng , Chengxiang Zhuo , Zang Li , Yali Wang

Humans integrate multiple sensory modalities (e.g. visual and audio) to build a causal understanding of the physical world. In this work, we propose a novel type of intrinsic motivation for Reinforcement Learning (RL) that encourages the…

Computer Vision and Pattern Recognition · Computer Science 2020-07-28 Chuang Gan , Xiaoyu Chen , Phillip Isola , Antonio Torralba , Joshua B. Tenenbaum

In real-world recommendation problems, especially those with a formidably large item space, users have to gradually learn to estimate the utility of any fresh recommendations from their experience about previously consumed items. This in…

Machine Learning · Computer Science 2022-02-07 Fan Yao , Chuanhao Li , Denis Nekipelov , Hongning Wang , Haifeng Xu

Modern virtual personal assistants provide a convenient interface for completing daily tasks via voice commands. An important consideration for these assistants is the ability to recover from automatic speech recognition (ASR) and natural…

Computation and Language · Computer Science 2017-12-13 Maryam Fazel-Zarandi , Shang-Wen Li , Jin Cao , Jared Casale , Peter Henderson , David Whitney , Alborz Geramifard

This paper addresses tracking of a moving target in a multi-agent network. The target follows a linear dynamics corrupted by an adversarial noise, i.e., the noise is not generated from a statistical distribution. The location of the target…

Optimization and Control · Mathematics 2017-02-22 Shahin Shahrampour , Ali Jadbabaie

Due to the difficulty of acquiring large-scale explicit user feedback, implicit feedback (e.g., clicks or other interactions) is widely applied as an alternative source of data, where user-item interactions can be modeled as a bipartite…

Information Retrieval · Computer Science 2024-11-15 Xinyu He , Jose Sepulveda , Mostafa Rahmani , Alyssa Woo , Fei Wang , Hanghang Tong

Graphical user interface (GUI) agents have shown promise in automating mobile tasks but still struggle with input redundancy and decision ambiguity. In this paper, we present \textbf{RecAgent}, an uncertainty-aware agent that addresses…

Artificial Intelligence · Computer Science 2025-08-07 Chao Hao , Shuai Wang , Kaiwen Zhou

Traditional robust recommendation methods view atypical user-item interactions as noise and aim to reduce their impact with some kind of noise filtering technique, which often suffers from two challenges. First, in real world, atypical…

Information Retrieval · Computer Science 2022-01-19 Ziwen Du , Ning Yang , Zhonghua Yu , Philip S. Yu