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Formulations of the turbo equalization approach to iterative equalization and decoding vary greatly when channel knowledge is either partially or completely unknown. Maximum aposteriori probability (MAP) and minimum mean square error (MMSE)…

系统与控制 · 计算机科学 2012-03-20 Nargiz Kalantarova , Kyeongyeon Kim , Suleyman S. Kozat , Andrew C. Singer

The union-find decoder is a leading algorithmic approach to the correction of quantum errors on the surface code, achieving code thresholds comparable to minimum-weight perfect matching (MWPM) with amortised computational time scaling…

量子物理 · 物理学 2025-04-10 Sam J. Griffiths , Dan E. Browne

We present a general framework for studying the multilevel structure of lattice network coding (LNC), which serves as the theoretical fundamental for solving the ring-based LNC problem in practice, with greatly reduced decoding complexity.…

信息论 · 计算机科学 2015-11-12 Yi Wang , Alister Burr , Qinhui Huang , Mehdi Molu

Decision trees and random forest remain highly competitive for classification on medium-sized, standard datasets due to their robustness, minimal preprocessing requirements, and interpretability. However, a single tree suffers from high…

机器学习 · 统计学 2025-12-02 Cencheng Shen , Yuexiao Dong , Carey E. Priebe

We present the tree-structure expectation propagation (Tree-EP) algorithm to decode low-density parity-check (LDPC) codes over discrete memoryless channels (DMCs). EP generalizes belief propagation (BP) in two ways. First, it can be used…

信息论 · 计算机科学 2015-03-19 Pablo M. Olmos , Juan José Murillo-Fuentes , Fernando Pérez-Cruz

This paper presents a joint typicality framework for encoding and decoding nested linear codes for multi-user networks. This framework provides a new perspective on compute-forward within the context of discrete memoryless networks. In…

信息论 · 计算机科学 2016-07-01 Sung Hoon Lim , Chen Feng , Adriano Pastore , Bobak Nazer , Michael Gastpar

This paper introduces a universal federated learning framework that enables over-the-air computation via digital communications, using a new joint source-channel coding scheme. Without relying on channel state information at devices, this…

信息论 · 计算机科学 2024-03-05 Seyed Mohammad Azimi-Abarghouyi , Lav R. Varshney

Context-aware compression techniques have gained increasing attention as model sizes continue to grow, introducing computational bottlenecks that hinder efficient deployment. A structured encoding approach was proposed to selectively…

Multi-scale features are essential for dense prediction tasks, such as object detection, instance segmentation, and semantic segmentation. The prevailing methods usually utilize a classification backbone to extract multi-scale features and…

计算机视觉与模式识别 · 计算机科学 2023-11-01 Gang Zhang , Ziyi Li , Chufeng Tang , Jianmin Li , Xiaolin Hu

The work identifies the first general, explicit, and non-random MIMO encoder-decoder structures that guarantee optimality with respect to the diversity-multiplexing tradeoff (DMT), without employing a computationally expensive…

信息论 · 计算机科学 2016-11-18 Joakim Jalden , Petros Elia

Minimum achievable complexity (MAC) for a maximum likelihood (ML) performance-achieving detection algorithm is derived. Using the derived MAC, we prove that the conventional sphere decoding (SD) algorithms suffer from an inherent weakness…

信息论 · 计算机科学 2021-09-21 Mohammad Neinavaie , Mostafa Derakhtian , Sergiy A. Vorobyov

In this work we propose novel decision feedback (DF) detection algorithms with error propagation mitigation capabilities for multi-input multi-output (MIMO) spatial multiplexing systems based on multiple processing branches. The novel…

信息论 · 计算机科学 2013-04-18 R. C. de Lamare , D. Le Ruyet

Federated learning (FL) is emerging as a promising technique for collaborative learning without local data leaving their devices. However, clients' data originating from diverse domains may degrade model performance due to domain shifts,…

计算机视觉与模式识别 · 计算机科学 2025-03-18 Zheng Wang , Zihui Wang , Zheng Wang , Xiaoliang Fan , Cheng Wang

We introduce a new erasure decoder that applies to arbitrary quantum LDPC codes. Dubbed the cluster decoder, it generalizes the decomposition idea of Vertical-Horizontal (VH) decoding introduced by Connelly et al. in 2022. Like the VH…

信息论 · 计算机科学 2024-12-13 Hanwen Yao , Mert Gökduman , Henry D. Pfister

In this paper, we consider the problem of distributed inference in tree based networks. In the framework considered in this paper, distributed nodes make a 1-bit local decision regarding a phenomenon before sending it to the fusion center…

信息论 · 计算机科学 2016-11-17 Bhavya Kailkhura , Aditya Vempaty , Pramod K. Varshney

Quantum Tanner codes are a recently developed family of quantum error-correcting codes characterized by favorable asymptotic performance characteristics. Despite their theoretical potential, practical decoding algorithms that effectively…

量子物理 · 物理学 2026-05-19 Zhuo-Yan Xiao , Sha Shi , Chen-Peng Huang , Dong-Sheng Wang , Yun-Jiang Wang

Large Reasoning Models (LRMs) achieve remarkable inference-time improvements through parallel thinking. However, existing methods rely on redundant sampling of reasoning trajectories, failing to effectively explore the reasoning space to…

In this paper, we present a new approach to learning cascaded classifiers for use in computing environments that involve networks of heterogeneous and resource-constrained, low-power embedded compute and sensing nodes. We present a…

机器学习 · 统计学 2017-06-27 Hamid Dadkhahi , Benjamin M. Marlin

Orthogonal time frequency space (OTFS) modulation has emerged as a robust solution for high-mobility wireless communications. However, conventional detection algorithms, such as linear equalizers and message passing (MP) methods, either…

信号处理 · 电气工程与系统科学 2025-12-17 Ruohai Yang , Shuangyang Li , Han Yu , Zhiqiang Wei , Kai Wan , Giuseppe Caire

In our previous work, we proposed a discriminative autoencoder (DcAE) for speech recognition. DcAE combines two training schemes into one. First, since DcAE aims to learn encoder-decoder mappings, the squared error between the reconstructed…

声音 · 计算机科学 2022-06-16 Hung-Shin Lee , Pin-Tuan Huang , Yao-Fei Cheng , Hsin-Min Wang