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The forthcoming Versatile Video Coding (VVC) standard adopts the trellis-coded quantization, which leverages the delicate trellis graph to map the quantization candidates within one block into the optimal path. Despite the high compression…

Multimedia · Computer Science 2021-02-24 Meng Wang , Shiqi Wang , Junru Li , Li Zhang , Yue Wang , Siwei Ma , Sam Kwong

Sparse intersymbol-interference (ISI) channels are encountered in a variety of high-data-rate communication systems. Such channels have a large channel memory length, but only a small number of significant channel coefficients. In this…

Information Theory · Computer Science 2016-11-17 Jan Mietzner , Sabah Badri-Hoeher , Ingmar Land , Peter A. Hoeher

Reconfigurable intelligent surfaces (RIS) can reshape the characteristics of wireless channels by intelligently regulating the phase shifts of reflecting elements. Recently, various codebook schemes have been utilized to optimize the…

Information Theory · Computer Science 2025-04-01 Zhiheng Yu , Jiancheng An , Lu Gan , Hongbin Li , Symeon Chatzinotas

A decode and forward protocol based Trellis Coded Modulation (TCM) scheme for the half-duplex relay channel, in a Rayleigh fading environment, is presented. The proposed scheme can achieve any spectral efficiency greater than or equal to…

Information Theory · Computer Science 2011-09-06 Vijayvaradharaj T Muralidharan , B. Sundar Rajan

Two classes of turbo codes over high-order finite fields are introduced. The codes are derived from a particular protograph sub-ensemble of the (dv=2,dc=3) low-density parity-check code ensemble. A first construction is derived as a…

Information Theory · Computer Science 2016-11-17 Gianluigi Liva , Enrico Paolini , Sandro Scalise , Marco Chiani

Visual tokens consume substantial computational resources in multi-modal large models (MLLMs), significantly compromising their efficiency. Recent works have attempted to improve efficiency by compressing visual tokens during training,…

Computer Vision and Pattern Recognition · Computer Science 2025-10-02 Zichen Wen , Shaobo Wang , Yufa Zhou , Junyuan Zhang , Qintong Zhang , Yifeng Gao , Zhaorun Chen , Bin Wang , Weijia Li , Conghui He , Linfeng Zhang

Large language models (LLMs) are increasingly deployed as part of compound AI systems that coordinate multiple modules (e.g., retrievers, tools, verifiers) over long-horizon workflows. Recent approaches that propagate textual feedback…

Machine Learning · Computer Science 2026-04-06 Minghui Chen , Wenlong Deng , James Zou , Han Yu , Xiaoxiao Li

Massive MIMO systems can achieve high spectrum and energy efficiency in downlink (DL) based on accurate estimate of channel state information (CSI). Existing works have developed learning-based DL CSI estimation that lowers uplink feedback…

Information Theory · Computer Science 2022-05-31 Yu-Chien Lin , Ta-Sung Lee , Zhi Ding

In the era of large language models (LLMs), supervised neural methods remain the state-of-the-art (SOTA) for Coreference Resolution. Yet, their full potential is underexplored, particularly in incremental clustering, which faces the…

Information Retrieval · Computer Science 2026-05-08 Kangyang Luo , Shuzheng Si , Yuzhuo Bai , Cheng Gao , Zhitong Wang , Cheng Huang , Yingli Shen , Yufeng Han , Wenhao Li , Cunliang Kong , Maosong Sun

Large language models (LLMs) are systematically overconfident: they routinely express high certainty on questions they often answer incorrectly. Existing calibration methods either require labeled validation data, degrade under distribution…

Computation and Language · Computer Science 2026-04-14 Mohamed Rissal Hedna , Jan Strich , Martin Semmann , Chris Biemann

Sequential decoding, commonly applied to substitution channels, is a sub-optimal alternative to Viterbi decoding with significantly reduced memory costs. In this work, a sequential decoder for convolutional codes over channels that are…

Information Theory · Computer Science 2026-04-02 Anisha Banerjee , Andreas Lenz , Antonia Wachter-Zeh

The Golden space-time trellis coded modulation (GST-TCM) scheme was proposed in \cite{Hong06} for a high rate $2\times 2$ multiple-input multiple-output (MIMO) system over slow fading channels. In this letter, we present the performance…

Information Theory · Computer Science 2007-11-09 Emanuele Viterbo , Yi Hong

The state-of-the-art in optimal control from timed temporal logic specifications, including Metric Temporal Logic (MTL) and Signal Temporal Logic (STL), is based on Mixed-Integer Convex Programming (MICP). The standard MICP approach is…

Systems and Control · Electrical Eng. & Systems 2021-12-03 Vince Kurtz , Hai Lin

Targeting at both high efficiency and performance, we propose AlignTTS to predict the mel-spectrum in parallel. AlignTTS is based on a Feed-Forward Transformer which generates mel-spectrum from a sequence of characters, and the duration of…

Audio and Speech Processing · Electrical Eng. & Systems 2020-03-05 Zhen Zeng , Jianzong Wang , Ning Cheng , Tian Xia , Jing Xiao

Terahertz (THz) communication is considered one of the most critical technologies for 6G because of its abundant bandwidth. To compensate the high propagation of THz, analog/digital hybrid precoding for THz massive multiple input multiple…

Signal Processing · Electrical Eng. & Systems 2025-07-15 Yang Wang , Chuang Yang , Mugen Peng

We present a novel algorithm that solves the turbo code LP decoding problem in a fininte number of steps by Euclidean distance minimizations, which in turn rely on repeated shortest path computations in the trellis graph representing the…

Information Theory · Computer Science 2014-03-18 Michael Helmling , Stefan Ruzika

Test-Time Scaling (TTS) improves the reasoning performance of Large Language Models (LLMs) by allocating additional compute during inference. We conduct a structured survey of TTS methods and categorize them into sampling-based,…

Computation and Language · Computer Science 2025-06-06 Ho-Lam Chung , Teng-Yun Hsiao , Hsiao-Ying Huang , Chunerh Cho , Jian-Ren Lin , Zhang Ziwei , Yun-Nung Chen

Massive multiple-input multiple-output (MIMO) systems rely on channel state information (CSI) feedback to perform precoding and achieve performance gain in frequency division duplex (FDD) networks. However, the huge number of antennas poses…

Information Theory · Computer Science 2018-08-01 Tianqi Wang , Chao-Kai Wen , Shi Jin , Geoffrey Ye Li

Diffusion Multi-modal Large Language Models (dMLLMs) have recently emerged as a novel architecture unifying image generation and understanding. However, developing effective and efficient Test-Time Scaling (TTS) methods to unlock their full…

Computer Vision and Pattern Recognition · Computer Science 2026-04-09 Yi Xin , Siqi Luo , Tianxiang Xu , Qi Qin , Haoxing Chen , Kaiwen Zhu , Zhiwei Zhang , Yangfan He , Rongchao Zhang , Jinbin Bai , Shuo Cao , Bin Fu , Junjun He , Yihao Liu , Yuewen Cao , Xiaohong Liu

Deep learning (DL) techniques have demonstrated strong performance in compressing and reconstructing channel state information (CSI) while reducing feedback overhead in massive MIMO systems. A key challenge, however, is their reliance on…

Signal Processing · Electrical Eng. & Systems 2025-10-01 Hao Luo , Shuaifeng Jiang , Saeed R. Khosravirad , Ahmed Alkhateeb