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In cryptanalysis, security of ciphers vis-a-vis attacks is gauged against three criteria of complexities, i.e., computations, memory and time. Some features may not be so apparent in a particular domain, and their analysis in a transformed…

密码学与安全 · 计算机科学 2015-03-23 Muhammad Asad Khan , Amir A Khan , Fauzan Mirza

The synchronization of digital twins (DT) serves as the cornerstone for effective operation of the DT framework. However, the limitations of channel capacity can greatly affect the data transmission efficiency of wireless communication.…

新兴技术 · 计算机科学 2025-03-07 Bin Li , Haichen Cai , Lei Liu , Zesong Fei

Image fusion aims to blend complementary information from multiple sensing modalities, yet existing approaches remain limited in robustness, adaptability, and controllability. Most current fusion networks are tailored to specific tasks and…

计算机视觉与模式识别 · 计算机科学 2025-12-09 Jiayang Li , Chengjie Jiang , Junjun Jiang , Pengwei Liang , Jiayi Ma , Liqiang Nie

In this paper, we propose Dynamic Compressive Transformer (DCT), a transformer-based framework for modeling the unbounded sequence. In contrast to the previous baselines which append every sentence representation to memory, conditionally…

计算与语言 · 计算机科学 2021-10-12 Kai-Po Chang , Wei-Yun Ma

Safe reinforcement learning (RL) trains a constraint satisfaction policy by interacting with the environment. We aim to tackle a more challenging problem: learning a safe policy from an offline dataset. We study the offline safe RL problem…

机器学习 · 计算机科学 2023-06-22 Zuxin Liu , Zijian Guo , Yihang Yao , Zhepeng Cen , Wenhao Yu , Tingnan Zhang , Ding Zhao

In supervised learning, decision trees are valued for their interpretability and performance. While greedy decision tree algorithms like CART remain widely used due to their computational efficiency, they often produce sub-optimal solutions…

机器学习 · 计算机科学 2025-06-03 Hector Kohler , Riad Akrour , Philippe Preux

The directional state transition tensor (DSTT) reduces the complexity of state transition tensor (STT) by aligning the STT terms in sensitive directions only, which provides comparable accuracy in orbital uncertainty propagation. The DSTT…

天体物理仪器与方法 · 物理学 2024-12-11 Xingyu Zhou , Roberto Armellin , Dong Qiao , Xiangyu Li

Federated Domain Generalization (FDG) aims to collaboratively train a global model across distributed clients that can generalize well on unseen domains. However, existing FDG methods typically struggle with cross-client data heterogeneity…

分布式、并行与集群计算 · 计算机科学 2026-05-12 Yuliang Chen , Xi Lin , Jun Wu , Xiangrui Cai , Qiaolun Zhang , Xichun Fan , Jiapeng Xu , Xiu Su

Discrete diffusion models are a new class of text generators that offer advantages such as bidirectional context use, parallelizable generation, and flexible prompting compared to autoregressive models. However, a critical limitation of…

机器学习 · 计算机科学 2025-10-23 Andrew Zhang , Anushka Sivakumar , Chiawei Tang , Chris Thomas

Temporal difference (TD) learning is a foundational algorithm in reinforcement learning (RL). For nearly forty years, TD learning has served as a workhorse for applied RL as well as a building block for more complex and specialized…

机器学习 · 计算机科学 2025-06-24 Hwanwoo Kim , Panos Toulis , Eric Laber

Accurate traffic flow prediction is essential for applications like transport logistics but remains challenging due to complex spatio-temporal correlations and non-linear traffic patterns. Existing methods often model spatial and temporal…

机器学习 · 计算机科学 2025-03-18 Jing Chen , Haocheng Ye , Zhian Ying , Yuntao Sun , Wenqiang Xu

Point cloud analysis has achieved outstanding performance by transferring point cloud pre-trained models. However, existing methods for model adaptation usually update all model parameters, i.e., full fine-tuning paradigm, which is…

计算机视觉与模式识别 · 计算机科学 2024-04-08 Xin Zhou , Dingkang Liang , Wei Xu , Xingkui Zhu , Yihan Xu , Zhikang Zou , Xiang Bai

Decision transformers recast reinforcement learning as a conditional sequence generation problem, offering a simple but effective alternative to traditional value or policy-based methods. A recent key development in this area is the…

机器学习 · 计算机科学 2024-12-16 Zhe Wang , Haozhu Wang , Yanjun Qi

Digital Twins (DTs) are computational models that simulate the states and temporal dynamics of real-world systems, playing a crucial role in prediction, understanding, and decision-making across diverse domains. However, existing approaches…

机器学习 · 计算机科学 2024-11-01 Samuel Holt , Tennison Liu , Mihaela van der Schaar

Recently, LiDAR point cloud processing and analysis have made great progress due to the development of 3D Transformers. However, existing 3D Transformer methods usually are computationally expensive and inefficient due to their huge and…

计算机视觉与模式识别 · 计算机科学 2024-12-30 Dening Lu , Jun Zhou , Kyle , Gao , Linlin Xu , Jonathan Li

Masked diffusion language models (MDLMs) are becoming competitive with their autoregressive counterparts but typically decode with fixed steps and sequential unmasking. To accelerate decoding, recent work such as Fast-dLLM enables parallel…

机器学习 · 计算机科学 2026-02-17 Jucheng Shen , Yeonju Ro

The concept of creating a virtual copy of a complete Cyber-Physical System opens up numerous possibilities, including real-time assessments of the physical environment and continuous learning from the system to provide reliable and precise…

人工智能 · 计算机科学 2023-11-22 Carine Menezes Rebello , Johannes Jäschkea , Idelfonso B. R. Nogueira

In many scientific and engineering problems, noise and nonlinearity are unavoidable, which could induce interesting mathematical problem such as transition phenomena. This paper focuses on efficiently discovering the most probable…

最优化与控制 · 数学 2023-06-08 Jin Guo , Ting Gao , Peng Zhang , Jiequn Han , Jinqiao Duan

The proliferation of diverse wireless services in 5G and beyond has led to the emergence of network slicing technologies. Among these, admission control plays a crucial role in achieving service-oriented optimization goals through the…

机器学习 · 计算机科学 2024-10-11 Zhenyu Tao , Wei Xu , Xiaohu You

Cross-modal image translation remains brittle and inefficient. Standard diffusion approaches often rely on a single, global linear transfer between domains. We find that this shortcut forces the sampler to traverse off-manifold, high-cost…

计算机视觉与模式识别 · 计算机科学 2026-02-03 Zihao Wang , Yuzhou Chen , Shaogang Ren