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Lossy image compression is a many-to-one process, thus one bitstream corresponds to multiple possible original images, especially at low bit rates. However, this nature was seldom considered in previous studies on image compression, which…

图像与视频处理 · 电气工程与系统科学 2021-10-01 Haichuan Ma , Dong Liu , Cunhui Dong , Li Li , Feng Wu

Modern language models still rely on fixed, pre-defined subword tokenizations. Once a tokenizer is trained, the LM can only operate at this fixed level of granularity, which often leads to brittle and counterintuitive behaviors even in…

计算与语言 · 计算机科学 2026-03-05 Chunyuan Deng , Sanket Lokegaonkar , Colin Lockard , Besnik Fetahu , Nasser Zalmout , Xian Li

Semantic hashing has become a powerful paradigm for fast similarity search in many information retrieval systems. While fairly successful, previous techniques generally require two-stage training, and the binary constraints are handled…

计算与语言 · 计算机科学 2018-05-16 Dinghan Shen , Qinliang Su , Paidamoyo Chapfuwa , Wenlin Wang , Guoyin Wang , Lawrence Carin , Ricardo Henao

Recently, probabilistic predictive coding that directly models the conditional distribution of latent features across successive frames for temporal redundancy removal has yielded promising results. Existing methods using a single-scale…

图像与视频处理 · 电气工程与系统科学 2023-12-13 Ming Lu , Zhihao Duan , Fengqing Zhu , Zhan Ma

Decentralized optimization methods enable on-device training of machine learning models without a central coordinator. In many scenarios communication between devices is energy demanding and time consuming and forms the bottleneck of the…

最优化与控制 · 数学 2020-11-04 Dmitry Kovalev , Anastasia Koloskova , Martin Jaggi , Peter Richtarik , Sebastian U. Stich

This work studies the joint design of precoding and backhaul compression strategies for the downlink of cloud radio access networks. In these systems, a central encoder is connected to multiple multi-antenna base stations (BSs) via…

信息论 · 计算机科学 2015-06-15 Seok-Hwan Park , Osvaldo Simeone , Onur Sahin , Shlomo Shamai

Weighted voting is a conventional approach to improving the performance of replicated systems based on commonly-used majority quorum systems in heterogeneous environments. In long-lived systems, a weight reassignment protocol is required to…

分布式、并行与集群计算 · 计算机科学 2021-12-03 Hasan Heydari , Guthemberg Silvestre , Luciana Arantes

Recent advances in learning-based methods have markedly enhanced the capabilities of image compression. However, these methods struggle with high bit-depth volumetric medical images, facing issues such as degraded performance, increased…

图像与视频处理 · 电气工程与系统科学 2024-10-24 Kai Wang , Yuanchao Bai , Daxin Li , Deming Zhai , Junjun Jiang , Xianming Liu

Lossless model compression holds tremendous promise for alleviating the memory and bandwidth bottlenecks in bit-exact Large Language Model (LLM) serving. However, existing approaches often result in substantial inference slowdowns due to…

分布式、并行与集群计算 · 计算机科学 2026-03-19 Ruibo Fan , Xiangrui Yu , Xinglin Pan , Zeyu Li , Weile Luo , Qiang Wang , Wei Wang , Xiaowen Chu

Recently, large language models (LLMs) have driven promising progress in lossless image compression. However, directly adopting existing paradigms for medical images suffers from an unsatisfactory trade-off between compression performance…

图像与视频处理 · 电气工程与系统科学 2025-11-05 Pengcheng Zheng , Xiaorong Pu , Kecheng Chen , Jiaxin Huang , Meng Yang , Bai Feng , Yazhou Ren , Jianan Jiang , Chaoning Zhang , Yang Yang , Heng Tao Shen

We propose a new flexible tensor model for multiple-equation regression that accounts for latent regime changes. The model allows for dynamic coefficients and multi-dimensional covariates that vary across equations. We assume the…

统计方法学 · 统计学 2024-07-02 Roberto Casarin , Radu Craiu , Qing Wang

This work studies distributed compression for the uplink of a cloud radio access network where multiple multi-antenna base stations (BSs) are connected to a central unit, also referred to as cloud decoder, via capacity-constrained backhaul…

信息论 · 计算机科学 2012-06-19 Seok-Hwan Park , Osvaldo Simeone , Onur Sahin , Shlomo Shamai

Often, large, high dimensional datasets collected across multiple modalities can be organized as a higher order tensor. Low-rank tensor decomposition then arises as a powerful and widely used tool to discover simple low dimensional…

机器学习 · 统计学 2020-01-29 Jonathan Kadmon , Surya Ganguli

Global unitary transformations (OPTSWAPS) that optimally increase the bias of any mixed computation qubit in a quantum system -- represented by a diagonal density matrix -- towards a particular state of the computational basis which, in…

量子物理 · 物理学 2022-05-05 Varad R. Pande

Adaptive block partitioning is responsible for large gains in current image and video compression systems. This method is able to compress large stationary image areas with only a few symbols, while maintaining a high level of quality in…

图像与视频处理 · 电气工程与系统科学 2023-07-13 Fabian Brand , Alexander Kopte , Kristian Fischer , André Kaup

Reversible data hiding (RDH) has been extensively studied in the field of information security. In our previous work [1], an explicit implementation approaching the rate-distortion bound of RDH has been proposed. However, there are two…

信息论 · 计算机科学 2023-07-18 Na Wang , Chuan Qin , Sian-Jheng Lin

We leverage the powerful lossy image compression algorithm BPG to build a lossless image compression system. Specifically, the original image is first decomposed into the lossy reconstruction obtained after compressing it with BPG and the…

计算机视觉与模式识别 · 计算机科学 2020-03-24 Fabian Mentzer , Luc Van Gool , Michael Tschannen

Non-autoregressive neural machine translation (NAT) offers substantial translation speed up compared to autoregressive neural machine translation (AT) at the cost of translation quality. Latent variable modeling has emerged as a promising…

计算与语言 · 计算机科学 2024-09-10 DongNyeong Heo , Heeyoul Choi

The outcomes of projective measurements on a quantum many-body system in a chosen basis are inherently probabilistic. The Shannon entropy of this probability distribution (the "diagonal entropy") often reveals universal features, such as…

量子物理 · 物理学 2025-08-12 Yu-Hsueh Chen , Tarun Grover

The Compressive Sensing (CS) framework aims to ease the burden on analog-to-digital converters (ADCs) by reducing the sampling rate required to acquire and stably recover sparse signals. Practical ADCs not only sample but also quantize each…

信息论 · 计算机科学 2015-11-04 Laurent Jacques , Jason N. Laska , Petros T. Boufounos , Richard G. Baraniuk