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Reference-based image super-resolution (RefSR) has shown promising success in recovering high-frequency details by utilizing an external reference image (Ref). In this task, texture details are transferred from the Ref image to the…

Computer Vision and Pattern Recognition · Computer Science 2021-06-07 Liying Lu , Wenbo Li , Xin Tao , Jiangbo Lu , Jiaya Jia

We report a detailed and systematic study of wave propagation through a stochastic absorbing random medium. Stochastic absorption is modeled by introducing an attenuation constant per unit length $\alpha$ in the free propagation region of…

Disordered Systems and Neural Networks · Physics 2007-05-23 Sandeep K. Joshi , Debendranath Sahoo , A. M. Jayannavar

As one of the most challenging and practical segmentation tasks, open-world semantic segmentation requires the model to segment the anomaly regions in the images and incrementally learn to segment out-of-distribution (OOD) objects,…

Computer Vision and Pattern Recognition · Computer Science 2022-05-18 Hexin Dong , Zifan Chen , Mingze Yuan , Yutong Xie , Jie Zhao , Fei Yu , Bin Dong , Li Zhang

The theoretical basis for conventional acquisition of bandlimited signals typically relies on uniform time sampling and assumes infinite-precision amplitude values. In this paper, we explore signal representation and recovery based on…

Signal Processing · Electrical Eng. & Systems 2020-02-10 Pablo Martínez-Nuevo , Hsin-Yu Lai , Alan V. Oppenheim

In this paper, we investigate a novel reconfigurable distributed antennas and reflecting surface (RDARS) aided multi-user massive MIMO system with imperfect CSI and propose a practical two-timescale (TTS) transceiver design to reduce the…

Information Theory · Computer Science 2023-12-15 Chengzhi Ma , Jintao Wang , Xi Yang , Guanghua Yang , Wei Zhang , Shaodan Ma

We consider the problem of performing ranging measurements between a source and multiple receivers efficiently and accurately, as required by distance-based wireless localization systems. To this end, a new multipoint ranging algorithm is…

Optimization and Control · Mathematics 2014-08-15 Omotayo Oshiga , Stefano Severi , Giuseppe Abreu

We present a number models describing the sequential deposition of a mixture of particles whose size distribution is determined by the power-law $p(x) \sim \alpha x^{\alpha-1}$, $x\leq l$ . We explicitly obtain the scaling function in the…

Statistical Mechanics · Physics 2016-08-31 M K Hassan

State-of-the-art text-to-image diffusion models can produce impressive visuals but may memorize and reproduce training images, creating copyright and privacy risks. Existing prompt perturbations applied at inference time, such as random…

Computer Vision and Pattern Recognition · Computer Science 2026-03-16 Yunzhuo Chen , Jordan Vice , Naveed Akhtar , Nur Al Hasan Haldar , Ajmal Mian

In recent years, Rectified flow (RF) has gained considerable popularity largely due to its generation efficiency and state-of-the-art performance. In this paper, we investigate the degree to which RF automatically adapts to the intrinsic…

Machine Learning · Statistics 2026-02-24 Saptarshi Roy , Alessandro Rinaldo , Purnamrita Sarkar

In physical layer security, the channel state information (CSI) of passive eavesdroppers is usually difficult to obtain, which has motivated sensing-aided secure communication (SASC). However, in secure multicast scenarios, conventional…

Information Theory · Computer Science 2026-05-12 Zequan Wang , Liang Yin , Hao Xu , Yunan Sun , Yitong Liu , Hongwen Yang

Coloring is used in wireless networks to improve communication efficiency, mainly in terms of bandwidth, energy and possibly end-to-end delays. In this paper, we define the h-hop node coloring problem, with h any positive integer, adapted…

Networking and Internet Architecture · Computer Science 2012-09-14 Ichrak Amdouni , Pascale Minet , Cédric Adjih

How is the limited capacity of working memory efficiently used to support human linguistic behaviors? In this paper, we propose Strategic Resource Allocation (SRA) as an efficiency principle for memory encoding in sentence processing. The…

Computation and Language · Computer Science 2025-09-01 Weijie Xu , Richard Futrell

Parametric Retrieval-Augmented Generation (PRAG) encodes external documents into lightweight parameter modules that can be retrieved and merged at inference time, offering a promising alternative to in-context retrieval augmentation.…

Computation and Language · Computer Science 2026-04-30 Weihang Su , Hanwen Zhang , Qingyao Ai , Yiqun Liu

The dramatic growth of big datasets presents a new challenge to data storage and analysis. Data reduction, or subsampling, that extracts useful information from datasets is a crucial step in big data analysis. We propose an orthogonal…

Methodology · Statistics 2021-06-01 Lin Wang , Jake Elmstedt , Weng Kee Wong , Hongquan Xu

Consider an algorithm performing a computation on a huge random object. Is it necessary to generate the entire object up front, or is it possible to provide query access to the object and sample it incrementally "on-the-fly"? Such an…

Data Structures and Algorithms · Computer Science 2020-12-08 Amartya Shankha Biswas , Ronitt Rubinfeld , Anak Yodpinyanee

LoRaWAN is nowadays one of the most popular protocols for low-power Internet-of-Things communications. Although its physical layer, namely LoRa, has been thoroughly studied in the literature, aspects related to the synchronization of LoRa…

Signal Processing · Electrical Eng. & Systems 2021-08-03 Mathieu Xhonneux , Orion Afisiadis , David Bol , Jérôme Louveaux

Discrete diffusion models with absorbing processes have shown promise in language modeling. The key quantities to be estimated are the ratios between the marginal probabilities of two transitive states at all timesteps, called the concrete…

Machine Learning · Computer Science 2026-03-24 Jingyang Ou , Shen Nie , Kaiwen Xue , Fengqi Zhu , Jiacheng Sun , Zhenguo Li , Chongxuan Li

Fundamental rate-distortion-perception (RDP) trade-offs arise in applications requiring maintained perceptual quality of reconstructed data, such as neural image compression. When compressed data is transmitted over public communication…

Information Theory · Computer Science 2026-04-23 Gustaf Åhlgren , Onur Günlü

We show how to generate random derangements efficiently by two different techniques: random restricted transpositions and sequential importance sampling. The algorithm employing restricted transpositions can also be used to generate random…

Computation · Statistics 2020-08-17 J. R. G. Mendonça

We present a second-order gradient analysis of light transport in participating media and use this to develop an improved radiance caching algorithm for volumetric light transport. We adaptively sample and interpolate radiance from sparse…

Graphics · Computer Science 2018-05-24 Julio Marco , Adrian Jarabo , Wojciech Jarosz , Diego Gutierrez
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