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This work presents the first finite-time analysis for the last-iterate convergence of average-reward $Q$-learning with an asynchronous implementation. A key feature of the algorithm we study is the use of adaptive stepsizes, which serve as…

机器学习 · 计算机科学 2026-04-07 Zaiwei Chen , Phalguni Nanda

The Transformer architecture, underpinned by the Multi-Head Attention (MHA) mechanism, has become the de facto standard for state-of-the-art models in artificial intelligence. However, the quadratic computational complexity of MHA with…

机器学习 · 计算机科学 2025-10-03 Adam Filipek

Slot-based object-centric learning represents an image as a set of latent slots with a decoder that combines them into an image or features. The decoder specifies how slots are combined into an output, but the slot set is typically fixed:…

计算机视觉与模式识别 · 计算机科学 2026-03-13 Christos Chatzisavvas , Panagiotis Rigas , George Ioannakis , Vassilis Katsouros , Nikolaos Mitianoudis

While large models demonstrate the strong representational power of vanilla attention, this core mechanism cannot be directly applied to Dense Object Tracking: its quadratic all-to-all interactions are computationally prohibitive for dense…

计算机视觉与模式识别 · 计算机科学 2026-04-30 Mingjin Lv , Zelin Liu , Feifei Shao , Yi-Ping Phoebe Chen , Junqing Yu , Wei Yang , Zikai Song

Supervised operator learning is an emerging machine learning paradigm with applications to modeling the evolution of spatio-temporal dynamical systems and approximating general black-box relationships between functional data. We propose a…

The Transformer model architecture has become one of the most widely used in deep learning and the attention mechanism is at its core. The standard attention formulation uses a softmax operation applied to a scaled dot product between query…

机器学习 · 计算机科学 2026-04-02 Hariprasath Govindarajan , Per Sidén , Jacob Roll , Fredrik Lindsten

Most neural network-based classifiers extract features using several hidden layers and make predictions at the output layer by utilizing these extracted features. We observe that not all features are equally pronounced in all classes; we…

机器学习 · 计算机科学 2022-11-22 Yifan Hao , Huiping Cao , K. Selcuk Candan , Jiefei Liu , Huiying Chen , Ziwei Ma

The computational burden of attention in long-context language models has motivated two largely independent lines of work: sparse attention mechanisms that reduce complexity by attending to selected tokens, and gated attention variants that…

人工智能 · 计算机科学 2026-01-23 Alfred Shen , Aaron Shen

Compositional inference - the decomposition of observations into an unknown number of latent components - is central to perception and scientific data analysis. Attention-based models perform well when components are approximately…

机器学习 · 计算机科学 2026-05-05 Niklas Houba

Sparse attention reduces the quadratic complexity of full self-attention but faces two challenges: (1) an attention gap, where applying sparse attention to full-attention-trained models causes performance degradation due to train-inference…

计算与语言 · 计算机科学 2026-02-02 Zhenyi Shen , Junru Lu , Lin Gui , Jiazheng Li , Yulan He , Di Yin , Xing Sun

As an effective data preprocessing step, feature selection has shown its effectiveness to prepare high-dimensional data for many machine learning tasks. The proliferation of high di-mension and huge volume big data, however, has brought…

机器学习 · 计算机科学 2019-03-01 Ning Gui , Danni Ge , Ziyin Hu

The attention mechanism within the transformer architecture enables the model to weigh and combine tokens based on their relevance to the query. While self-attention has enjoyed major success, it notably treats all queries $q$ in the same…

机器学习 · 计算机科学 2024-11-21 Xuechen Zhang , Xiangyu Chang , Mingchen Li , Amit Roy-Chowdhury , Jiasi Chen , Samet Oymak

Slot Attention (SA) lies at the heart of mainstream Object-Centric Learning (OCL). Image features can be aggregated into object-level representations by SA \textit{iteratively} refining cold-start query slots. For video, such aggregation…

计算机视觉与模式识别 · 计算机科学 2026-05-28 Rongzhen Zhao , Wenyan Yang , Juho Kannala , Joni Pajarinen

Quantization-aware training (QAT) is a representative model compression method to reduce redundancy in weights and activations. However, most existing QAT methods require end-to-end training on the entire dataset, which suffers from long…

机器学习 · 计算机科学 2024-08-21 Xijie Huang , Zechun Liu , Shih-Yang Liu , Kwang-Ting Cheng

Recent advancements in unified image generation models, such as OmniGen, have enabled the handling of diverse image generation and editing tasks within a single framework, accepting multimodal, interleaved texts and images in free form.…

计算机视觉与模式识别 · 计算机科学 2025-07-23 Chao Zhou , Tianyi Wei , Nenghai Yu

Multimodal large language models have demonstrated strong ability in capturing semantic representations for multimodal sentiment analysis. Their capacity to learn stable and generalizable multimodal features is limited, however, by the…

机器学习 · 计算机科学 2026-05-26 Jiazhang Liang , Jianheng Dai , Miaosen Luo , Menghua Jiang , Sijie Mai

Humans can discern scene-independent features of objects across various environments, allowing them to swiftly identify objects amidst changing factors such as lighting, perspective, size, and position and imagine the complete images of the…

计算机视觉与模式识别 · 计算机科学 2024-11-05 Tonglin Chen , Yinxuan Huang , Zhimeng Shen , Jinghao Huang , Bin Li , Xiangyang Xue

Training a neural network model that can quickly adapt to a new task is highly desirable yet challenging for few-shot learning problems. Recent few-shot learning methods mostly concentrate on developing various meta-learning strategies from…

计算机视觉与模式识别 · 计算机科学 2020-11-24 Zihang Jiang , Bingyi Kang , Kuangqi Zhou , Jiashi Feng

Object-centric representation learning aims to decompose visual scenes into fixed-size vectors called "slots" or "object files", where each slot captures a distinct object. Current state-of-the-art object-centric models have shown…

计算机视觉与模式识别 · 计算机科学 2025-03-28 Aniket Didolkar , Andrii Zadaianchuk , Rabiul Awal , Maximilian Seitzer , Efstratios Gavves , Aishwarya Agrawal

Category-level object pose estimation aims to predict the 6D pose and size of previously unseen instances from predefined categories, requiring strong generalization across diverse object instances. Although many previous methods attempt to…

计算机视觉与模式识别 · 计算机科学 2025-12-16 Xiao Zhang , Lu Zou , Tao Lu , Yuan Yao , Zhangjin Huang , Guoping Wang