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While large language models (LLMs) excel at understanding and generating plain text, they are not tailored to handle hierarchical text structures or directly predict task-specific properties such as text rating. In fact, selectively and…

计算与语言 · 计算机科学 2024-10-10 Chenxi Lin , Jiayu Ren , Guoxiu He , Zhuoren Jiang , Haiyan Yu , Xiaomin Zhu

Reinforcement learning has proven effective for enhancing multi-step reasoning in large language models (LLMs), yet its benefits have not fully translated to multilingual contexts. Existing methods struggle with a fundamental trade-off:…

计算与语言 · 计算机科学 2026-05-22 Yuchun Fan , Bei Li , Peiguang Li , Yilin Wang , Yongyu Mu , Jian Yang , Xin Chen , Rongxiang Weng , Jingang Wang , Xunliang Cai , Jingbo Zhu , Tong Xiao

Few-shot learning is often motivated by the ability of humans to learn new tasks from few examples. However, standard few-shot classification benchmarks assume that the representation is learned on a limited amount of base class data,…

计算机视觉与模式识别 · 计算机科学 2020-02-19 Yann Lifchitz , Yannis Avrithis , Sylvaine Picard

Best-performing speech models are trained on large amounts of data in the language they are meant to work for. However, most languages have sparse data, making training models challenging. This shortage of data is even more prevalent in…

Current safety alignment for large language models(LLMs) continues to present vulnerabilities, given that adversarial prompting can effectively bypass their safety measures.Our investigation shows that these safety mechanisms predominantly…

密码学与安全 · 计算机科学 2025-08-28 Chao Huang , Zefeng Zhang , Juewei Yue , Quangang Li , Chuang Zhang , Tingwen Liu

The significant growth of surveillance camera networks necessitates scalable AI solutions to efficiently analyze the large amount of video data produced by these networks. As a typical analysis performed on surveillance footage, video…

计算机视觉与模式识别 · 计算机科学 2022-09-07 Hamid Mohammadi , Ehsan Nazerfard

Zero-Shot Learning (ZSL) is achieved via aligning the semantic relationships between the global image feature vector and the corresponding class semantic descriptions. However, using the global features to represent fine-grained images may…

计算机视觉与模式识别 · 计算机科学 2018-05-22 Yunlong Yu , Zhong Ji , Yanwei Fu , Jichang Guo , Yanwei Pang , Zhongfei Zhang

Robust and efficient learning remains a challenging problem in robotics, in particular with complex visual inputs. Inspired by human attention mechanism, with which we quickly process complex visual scenes and react to changes in the…

机器人学 · 计算机科学 2023-08-30 Daniel Scheuchenstuhl , Stefan Ulmer , Felix Resch , Luigi Berducci , Radu Grosu

Large Language Models (LLMs) have emerged as a pivotal research area, yet the attention module remains a critical bottleneck in LLM inference, even with techniques like KVCache to mitigate redundant computations. While various top-$k$…

Attention mechanisms in biological perception are thought to select subsets of perceptual information for more sophisticated processing which would be prohibitive to perform on all sensory inputs. In computer vision, however, there has been…

计算机视觉与模式识别 · 计算机科学 2018-08-02 Mateusz Malinowski , Carl Doersch , Adam Santoro , Peter Battaglia

Pre-trained Language Models (LMs) exhibit strong zero-shot and in-context learning capabilities; however, their behaviors are often difficult to control. By utilizing Reinforcement Learning from Human Feedback (RLHF), it is possible to…

计算与语言 · 计算机科学 2024-05-31 Avelina Asada Hadji-Kyriacou , Ognjen Arandjelovic

Recent studies have revealed some issues of Multi-Head Attention (MHA), e.g., redundancy and over-parameterization. Specifically, the heads of MHA were originally designed to attend to information from different representation subspaces,…

机器学习 · 计算机科学 2023-10-17 Jinjie Ni , Rui Mao , Zonglin Yang , Han Lei , Erik Cambria

While deep reinforcement learning methods have shown impressive results in robot learning, their sample inefficiency makes the learning of complex, long-horizon behaviors with real robot systems infeasible. To mitigate this issue,…

机器学习 · 计算机科学 2022-04-26 Taewook Nam , Shao-Hua Sun , Karl Pertsch , Sung Ju Hwang , Joseph J Lim

A key challenge in fine-grained recognition is how to find and represent discriminative local regions. Recent attention models are capable of learning discriminative region localizers only from category labels with reinforcement learning.…

计算机视觉与模式识别 · 计算机科学 2016-05-24 Xiao Liu , Jiang Wang , Shilei Wen , Errui Ding , Yuanqing Lin

Sensor-based human activity recognition (HAR) requires to predict the action of a person based on sensor-generated time series data. HAR has attracted major interest in the past few years, thanks to the large number of applications enabled…

机器学习 · 计算机科学 2021-03-30 Davide Buffelli , Fabio Vandin

Deep neural networks are highly effective when a large number of labeled samples are available but fail with few-shot classification tasks. Recently, meta-learning methods have received much attention, which train a meta-learner on massive…

计算机视觉与模式识别 · 计算机科学 2020-07-14 Yucan Zhou , Yu Wang , Jianfei Cai , Yu Zhou , Qinghua Hu , Weiping Wang

Adapting Foundation Models to new domains with limited training data is challenging and computationally expensive. While prior work has demonstrated the effectiveness of using domain-specific exemplars as in-context demonstrations, we…

人工智能 · 计算机科学 2025-10-08 Abhinav Jain , Xinyu Yao , Thomas Reps , Christopher Jermaine

The vulnerability of deep neural networks to imperceptible adversarial perturbations has attracted widespread attention. Inspired by the success of vision-language foundation models, previous efforts achieved zero-shot adversarial…

计算机视觉与模式识别 · 计算机科学 2024-10-24 Yiwei Zhou , Xiaobo Xia , Zhiwei Lin , Bo Han , Tongliang Liu

Attention mechanisms have emerged as important tools that boost the performance of deep models by allowing them to focus on key parts of learned embeddings. However, current attention mechanisms used in speaker recognition tasks fail to…

声音 · 计算机科学 2022-07-21 Amirhossein Hajavi , Ali Etemad

Few-shot learning refers to understanding new concepts from only a few examples. We propose an information retrieval-inspired approach for this problem that is motivated by the increased importance of maximally leveraging all the available…

机器学习 · 计算机科学 2017-11-15 Eleni Triantafillou , Richard Zemel , Raquel Urtasun