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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…

信息论 · 计算机科学 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.…

音频与语音处理 · 电气工程与系统科学 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…

机器学习 · 计算机科学 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…

神经与进化计算 · 计算机科学 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…

计算与语言 · 计算机科学 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…

机器学习 · 计算机科学 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,…

图像与视频处理 · 电气工程与系统科学 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…

机器学习 · 计算机科学 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…

计算与语言 · 计算机科学 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…

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,…

计算机视觉与模式识别 · 计算机科学 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…

信息检索 · 计算机科学 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…

机器学习 · 计算机科学 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…

声音 · 计算机科学 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…

信息论 · 计算机科学 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…

信息检索 · 计算机科学 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…

计算与语言 · 计算机科学 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…

音频与语音处理 · 电气工程与系统科学 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…

计算与语言 · 计算机科学 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…

计算机视觉与模式识别 · 计算机科学 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