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Sparse support recovery arises in many applications in communications and signal processing. Existing methods tackle sparse support recovery problems for a given measurement matrix, and cannot flexibly exploit the properties of sparsity…

Information Theory · Computer Science 2019-10-11 Shuaichao Li , Wanqing Zhang , Ying Cui , Hei Victor Cheng , Wei Yu

Always-on machine learning models require a very low memory and compute footprint. Their restricted parameter count limits the model's capacity to learn, and the effectiveness of the usual training algorithms to find the best parameters.…

Audio and Speech Processing · Electrical Eng. & Systems 2024-08-05 Arnav Kundu , Prateeth Nayak , Priyanka Padmanabhan , Devang Naik

Transformers have become the dominant architecture for sequence modeling by using self-attention to enable expressive and highly parallel processing. However, the resulting quadratic time and memory costs limit efficiency in long-context…

Machine Learning · Computer Science 2026-05-19 Tristan Gaudreault , Yongyi Mao

Associative memories are data structures addressed using part of the content rather than an index. They offer good fault reliability and biological plausibility. Among different families of associative memories, sparse ones are known to…

Neural and Evolutionary Computing · Computer Science 2013-08-22 Ala Aboudib , Vincent Gripon , Xiaoran Jiang

Scale has opened new frontiers in natural language processing, but at a high cost. In response, by learning to only activate a subset of parameters in training and inference, Mixture-of-Experts (MoE) have been proposed as an energy…

Computation and Language · Computer Science 2024-08-09 Xingchen Song , Di Wu , Binbin Zhang , Dinghao Zhou , Zhendong Peng , Bo Dang , Fuping Pan , Chao Yang

Sparse autoencoders are usually trained one layer at a time, even though transformer residual stream activations are strongly coupled across depth. This creates a practical problem for multi-layer interventions: different layerwise…

Machine Learning · Computer Science 2026-05-28 Prathyush Poduval , Calvin Yeung , Neel Desai , Mohsen Imani

Ultrasound computed tomography (USCT) is a promising technique that achieves superior medical imaging reconstruction resolution by fully leveraging waveform information, outperforming conventional ultrasound methods. Despite its advantages,…

Image and Video Processing · Electrical Eng. & Systems 2024-07-23 Yi Sheng , Hanchen Wang , Yipei Liu , Junhuan Yang , Weiwen Jiang , Youzuo Lin , Lei Yang

Recently, introducing Tensor Decomposition (TD) techniques into unsupervised feature selection (UFS) has been an emerging research topic. A tensor structure is beneficial for mining the relations between different modes and helps relieve…

Machine Learning · Computer Science 2025-07-04 Junjing Zheng , Xinyu Zhang , Weidong Jiang , Xiangfeng Qiu , Mingjian Ren

Large language models have become increasingly difficult to train because of the growing computation time and cost. In this work, we present SRU++, a highly-efficient architecture that combines fast recurrence and attention for sequence…

Computation and Language · Computer Science 2021-09-16 Tao Lei

Recursive or looped language models have recently emerged as a new scaling axis by iteratively refining the same model computation over latent states to deepen reasoning. We extend such scaling principle from a single model to multi-agent…

Artificial Intelligence · Computer Science 2026-04-29 Xiyuan Yang , Jiaru Zou , Rui Pan , Ruizhong Qiu , Pan Lu , Shizhe Diao , Jindong Jiang , Hanghang Tong , Tong Zhang , Markus J. Buehler , Jingrui He , James Zou

Recent advances in semantic correspondence have been largely driven by the use of pre-trained large-scale models. However, a limitation of these approaches is their dependence on high-resolution input images to achieve optimal performance,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-16 Hailing Jin , Huiying Li

In recommendation systems, scaling up feature-interaction modules (e.g., Wukong, RankMixer) or user-behavior sequence modules (e.g., LONGER) has achieved notable success. However, these efforts typically proceed on separate tracks, which…

Information Retrieval · Computer Science 2026-02-03 Zhaoqi Zhang , Haolei Pei , Jun Guo , Tianyu Wang , Yufei Feng , Hui Sun , Shaowei Liu , Aixin Sun

A new method for the unsupervised learning of sparse representations using autoencoders is proposed and implemented by ordering the output of the hidden units by their activation value and progressively reconstructing the input in this…

Machine Learning · Computer Science 2016-05-09 Paul Bertens

We propose UnitSpeech, a speaker-adaptive speech synthesis method that fine-tunes a diffusion-based text-to-speech (TTS) model using minimal untranscribed data. To achieve this, we use the self-supervised unit representation as a pseudo…

Sound · Computer Science 2023-06-29 Heeseung Kim , Sungwon Kim , Jiheum Yeom , Sungroh Yoon

This paper investigates the unsourced random access (URA) scheme to accommodate numerous machine-type users communicating to a base station equipped with multiple antennas. Existing works adopt a slotted transmission strategy to reduce…

Information Theory · Computer Science 2022-02-17 Xinyu Xie , Yongpeng Wu , Jianping An , Junyuan Gao , Wenjun Zhang , Chengwen Xing , Kai-Kit Wong , Chengshan Xiao

The bi-encoder architecture provides a framework for understanding machine-learned retrieval models based on dense and sparse vector representations. Although these representations capture parametric realizations of the same underlying…

Information Retrieval · Computer Science 2023-12-01 Haonan Chen , Carlos Lassance , Jimmy Lin

The semantic matching capabilities of neural information retrieval can ameliorate synonymy and polysemy problems of symbolic approaches. However, neural models' dense representations are more suitable for re-ranking, due to their…

Computation and Language · Computer Science 2021-10-18 Kyoung-Rok Jang , Junmo Kang , Giwon Hong , Sung-Hyon Myaeng , Joohee Park , Taewon Yoon , Heecheol Seo

The recently proposed Conformer model has become the de facto backbone model for various downstream speech tasks based on its hybrid attention-convolution architecture that captures both local and global features. However, through a series…

Audio and Speech Processing · Electrical Eng. & Systems 2022-10-18 Sehoon Kim , Amir Gholami , Albert Shaw , Nicholas Lee , Karttikeya Mangalam , Jitendra Malik , Michael W. Mahoney , Kurt Keutzer

We show that both an LSTM and a unitary-evolution recurrent neural network (URN) can achieve encouraging accuracy on two types of syntactic patterns: context-free long distance agreement, and mildly context-sensitive cross serial…

Computation and Language · Computer Science 2022-08-12 Jean-Philippe Bernardy , Shalom Lappin

While Unified Multimodal Models (UMMs) have achieved remarkable success in cross-modal comprehension, a significant gap persists in their ability to leverage such internal knowledge for high-quality generation. We formalize this discrepancy…

Computer Vision and Pattern Recognition · Computer Science 2026-01-09 Ruiyan Han , Zhen Fang , XinYu Sun , Yuchen Ma , Ziheng Wang , Yu Zeng , Zehui Chen , Lin Chen , Wenxuan Huang , Wei-Jie Xu , Yi Cao , Feng Zhao
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