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Low-dose computed tomography (LDCT) reduces radiation exposure but suffers from image artifacts and loss of detail due to quantum and electronic noise, potentially impacting diagnostic accuracy. Transformer combined with diffusion models…

图像与视频处理 · 电气工程与系统科学 2025-07-01 Qiqing Liu , Guoquan Wei , Zekun Zhou , Yiyang Wen , Liu Shi , Qiegen Liu

This paper introduces a novel Token-and-Duration Transducer (TDT) architecture for sequence-to-sequence tasks. TDT extends conventional RNN-Transducer architectures by jointly predicting both a token and its duration, i.e. the number of…

音频与语音处理 · 电气工程与系统科学 2023-05-31 Hainan Xu , Fei Jia , Somshubra Majumdar , He Huang , Shinji Watanabe , Boris Ginsburg

Accurate energy time-series forecasting is crucial for ensuring grid stability and promoting the integration of renewable energy, yet it faces significant challenges from complex temporal dependencies and the heterogeneity of multi-source…

机器学习 · 计算机科学 2026-01-13 Mingnan Zhu , Qixuan Zhang , Yixuan Cheng , Fangzhou Gu , Shiming Lin

Multi-domain translation (MDT) aims to learn translations between multiple domains, yet existing approaches either require fully aligned tuples or can only handle domain pairs seen in training, limiting their practicality and excluding many…

机器学习 · 计算机科学 2026-01-28 Duc Kieu , Kien Do , Tuan Hoang , Thao Minh Le , Tung Kieu , Dang Nguyen , Thin Nguyen

Discrete diffusion language models (DDLMs) generate text by iteratively denoising categorical token sequences, while recent drifting methods for continuous generators suggest that part of this sampling-time correction can instead be…

计算与语言 · 计算机科学 2026-05-20 Daisuke Oba , Hiroki Furuta , Naoaki Okazaki

In recent years, extensive work has explored the application of the Transformer architecture to reinforcement learning problems. Among these, Decision Transformer (DT) has gained particular attention in the context of offline reinforcement…

人工智能 · 计算机科学 2025-07-15 Yumi Omori , Zixuan Dong , Keith Ross

Continual Test Time Adaptation (CTTA) has emerged as a critical approach for bridging the domain gap between the controlled training environments and the real-world scenarios, enhancing model adaptability and robustness. Existing CTTA…

计算机视觉与模式识别 · 计算机科学 2025-08-11 Hyewon Park , Hyejin Park , Jueun Ko , Dongbo Min

Diffusion Transformer (DiT), an emerging diffusion model for image generation, has demonstrated superior performance but suffers from substantial computational costs. Our investigations reveal that these costs stem from the static inference…

计算机视觉与模式识别 · 计算机科学 2024-10-10 Wangbo Zhao , Yizeng Han , Jiasheng Tang , Kai Wang , Yibing Song , Gao Huang , Fan Wang , Yang You

As a data-driven paradigm, offline reinforcement learning (Offline RL) has been formulated as sequence modeling, where the Decision Transformer (DT) has demonstrated exceptional capabilities. Unlike previous reinforcement learning methods…

机器学习 · 计算机科学 2024-09-13 Teng Yan , Zhendong Ruan , Yaobang Cai , Yu Han , Wenxian Li , Yang Zhang

Digital twins (DTs) enable powerful predictive analytics, but persistent discrepancies between simulations and real systems--known as the reality gap--undermine their reliability. Coined in robotics, the term now applies to DTs, where…

机器学习 · 计算机科学 2026-01-29 Sizhe Ma , Katherine A. Flanigan , Mario Bergés

3D point clouds captured from real-world sensors frequently encompass noisy points due to various obstacles, such as occlusion, limited resolution, and variations in scale. These challenges hinder the deployment of pre-trained point cloud…

计算机视觉与模式识别 · 计算机科学 2024-07-24 Hajin Shim , Changhun Kim , Eunho Yang

Feature Transformation is crucial for classic machine learning that aims to generate feature combinations to enhance the performance of downstream tasks from a data-centric perspective. Current methodologies, such as manual expert-driven…

机器学习 · 计算机科学 2025-03-27 Tianqi He , Xiaohan Huang , Yi Du , Qingqing Long , Ziyue Qiao , Min Wu , Yanjie Fu , Yuanchun Zhou , Meng Xiao

Despite the recent advancements in offline reinforcement learning via supervised learning (RvS) and the success of the decision transformer (DT) architecture in various domains, DTs have fallen short in several challenging benchmarks. The…

机器学习 · 计算机科学 2023-11-21 Anirudhan Badrinath , Yannis Flet-Berliac , Allen Nie , Emma Brunskill

Decision Transformer (DT) is a recently proposed architecture for Reinforcement Learning that frames the decision-making process as an auto-regressive sequence modeling problem and uses a Transformer model to predict the next action in a…

机器学习 · 计算机科学 2022-11-29 Max Siebenborn , Boris Belousov , Junning Huang , Jan Peters

Diffusion tensor imaging (DTI) holds significant importance in clinical diagnosis and neuroscience research. However, conventional model-based fitting methods often suffer from sensitivity to noise, leading to decreased accuracy in…

计算机视觉与模式识别 · 计算机科学 2024-09-05 Jialong Li , Zhicheng Zhang , Yunwei Chen , Qiqi Lu , Ye Wu , Xiaoming Liu , QianJin Feng , Yanqiu Feng , Xinyuan Zhang

Reusing pre-collected data from different domains is an appealing solution for decision-making tasks, especially when data in the target domain are limited. Existing cross-domain policy transfer methods mostly aim at learning domain…

机器人学 · 计算机科学 2026-03-10 Haoyi Niu , Qimao Chen , Tenglong Liu , Jianxiong Li , Guyue Zhou , Yi Zhang , Jianming Hu , Xianyuan Zhan

This study proposes a novel approach for dynamic load balancing in Software-Defined Networks (SDNs) using a Transformer-based Deep Q-Network (DQN). Traditional load balancing mechanisms, such as Round Robin (RR) and Weighted Round Robin…

Dataset distillation compresses large datasets into compact synthetic ones to reduce storage and computational costs. Among various approaches, distribution matching (DM)-based methods have attracted attention for their high efficiency.…

计算机视觉与模式识别 · 计算机科学 2025-12-03 Fengli Ran , Xiao Pu , Bo Liu , Xiuli Bi , Bin Xiao

Recently proposed orthogonal time frequency space (OTFS) modulation has been considered as a promising candidate for accommodating various emerging communication and sensing applications in high-mobility environments. In this paper, we…

信息论 · 计算机科学 2021-01-12 Shuangyang Li , Weijie Yuan , Zhiqiang Wei , Jinhong Yuan

The rapid adoption of Transformer-based AI has been driven by accessible models such as ChatGPT, which provide API-based services for developers and businesses. However, as these online inference services increasingly handle sensitive…

密码学与安全 · 计算机科学 2026-03-17 Yifei Cai , Zhuoran Li , Yizhou Feng , Qiao Zhang , Hongyi Wu , Danella Zhao , Chunsheng Xin