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Deep Neural Networks (DNNs) have already become a crucial computational approach to revealing the spatial patterns in the human brain; however, there are three major shortcomings in utilizing DNNs to detect the spatial patterns in…

机器学习 · 计算机科学 2022-05-26 Wei Zhang , Yu Bao

Particle size measurement based on digital holography with conventional algorithms are usually time-consuming and susceptible to noises associated with hologram quality and particle complexity, limiting its usage in a broad range of…

应用物理 · 物理学 2020-01-01 Siyao Shao , Kevin Mallery , Jiarong Hong

As the size of large language models (LLMs) continues to grow, model compression without sacrificing accuracy has become a crucial challenge for deployment. While some quantization methods, such as GPTQ, have made progress in achieving…

机器学习 · 计算机科学 2023-12-14 Liang Li , Qingyuan Li , Bo Zhang , Xiangxiang Chu

Unrolling a decoding algorithm allows to achieve extremely high throughput at the cost of increased area. Look-up tables (LUTs) can be used to replace functions otherwise implemented as circuits. In this work, we show the impact of…

Sparse Bayesian Learning (SBL) constructs an extremely sparse probabilistic model with very competitive generalization. However, SBL needs to invert a big covariance matrix with complexity $O(M^3)$ (M: feature size) for updating the…

机器学习 · 计算机科学 2023-09-12 Jiahua Luo , Chi-Man Wong , Chi-Man Vong

Lookup table (LUT) has shown its efficacy in low-level vision tasks due to the valuable characteristics of low computational cost and hardware independence. However, recent attempts to address the problem of single image super-resolution…

图像与视频处理 · 电气工程与系统科学 2022-09-16 Cheng Ma , Jingyi Zhang , Jie Zhou , Jiwen Lu

Low Dose Computed Tomography (LDCT) is clinically desirable due to the reduced radiation to patients. However, the quality of LDCT images is often sub-optimal because of the inevitable strong quantum noise. Inspired by their unprecedent…

图像与视频处理 · 电气工程与系统科学 2021-02-02 Ti Bai , Dan Nguyen , Biling Wang , Steve Jiang

We consider different Linear Combination of Unitaries (LCU) decompositions for molecular electronic structure Hamiltonians. Using these LCU decompositions for Hamiltonian simulation on a quantum computer, the main figure of merit is the…

量子物理 · 物理学 2023-06-13 Ignacio Loaiza , Alireza Marefat Khah , Nathan Wiebe , Artur F. Izmaylov

This paper uses the reconstruction-computation-quantization (RCQ) paradigm to decode low-density parity-check (LDPC) codes. RCQ facilitates dynamic non-uniform quantization to achieve good frame error rate (FER) performance with very low…

信号处理 · 电气工程与系统科学 2022-02-10 Linfang Wang , Caleb Terrill , Maximilian Stark , Zongwang Li , Sean Chen , Chester Hulse , Calvin Kuo , Richard Wesel , Gerhard Bauch , Rekha Pitchumani

The rapid growth of large language models (LLMs) presents significant deployment challenges due to their massive computational and memory demands. While model compression, such as network pruning, offers potential solutions, most existing…

机器学习 · 计算机科学 2026-04-07 Ziwei Li , Yuang Ma , Yi Kang

We experimentally investigate transmitting high-order quadrature amplitude modulation (QAM) signals with carrierless and intensity-only measurements with phase retrieval (PR) receiving techniques. The intensity errors during measurement,…

信号处理 · 电气工程与系统科学 2024-08-08 Hanzi Huang , Haoshuo Chen , Qi Gao , Yetian Huang , Nicolas K. Fontaine , Mikael Mazur , Lauren Dallachiesa , Roland Ryf , Zhengxuan Li , Yingxiong Song

We propose a low-complexity phase recovery scheme that simultaneously mitigates laser phase noise and fiber nonlinearity across several subcarriers. In a long single-span link with Raman amplification, the scheme achieves 0.9 dB gain with…

信号处理 · 电气工程与系统科学 2026-03-02 Marco Secondini , Stella Civelli

This paper provides a least squares formulation for the training of a 2-layer convolutional neural network using quadratic activation functions, a 2-norm loss function, and no regularization term. Using this method, an analytic expression…

机器学习 · 计算机科学 2024-11-18 Zachary Yetman Van Egmond , Luis Rodrigues

Post-training quantization (PTQ) is essential for deploying LLMs under memory and bandwidth constraints. However, extreme low-bit quantization remains highly sensitive to activation outliers and anisotropic weight curvature. Existing…

机器学习 · 计算机科学 2026-05-29 Artur Zagitov , Gleb Molodtsov , Aleksandr Beznosikov

Quantizing deep neural networks is an effective method for reducing memory consumption and improving inference speed, and is thus useful for implementation in resource-constrained devices. However, it is still hard for extremely low-bit…

计算机视觉与模式识别 · 计算机科学 2021-11-03 Kohei Yamamoto

Large language models (LLMs) are increasingly deployed on customer devices. To support them, current devices are adopting SoCs (System on Chip) with NPUs (Neural Processing Unit) installed. Although high performance is expected, LLM…

硬件体系结构 · 计算机科学 2025-11-17 Jianyu Wei , Qingtao Li , Shijie Cao , Lingxiao Ma , Zixu Hao , Yanyong Zhang , Xiaoyan Hu , Ting Cao

A novel design procedure for practical hierarchical distribution matchers (HiDMs) in probabilistically shaped constellation systems is presented. The proposed approach enables the determination of optimal parameters for any target…

信号处理 · 电气工程与系统科学 2026-01-26 Pantea Nadimi Goki , Luca Potì

Parameter quantization for Large Language Models (LLMs) has attracted increasing attentions recently in reducing memory costs and improving computational efficiency. Early approaches have been widely adopted. However, the existing methods…

机器学习 · 计算机科学 2024-06-04 Haoyu Wang , Bei Liu , Hang Shao , Bo Xiao , Ke Zeng , Guanglu Wan , Yanmin Qian

In this paper, we present a low-complexity joint detection-decoding algorithm for nonbinary LDPC codedmodulation systems. The algorithm combines hard-decision decoding using the message-passing strategy with the signal detector in an…

信息论 · 计算机科学 2016-11-17 Xuepeng Wang , Baoming Bai , Xiao Ma

We revisit quantum tomography in an informationally incomplete scenario and propose improved state reconstruction methods using deep neural networks. In the first approach, the trained network predicts an optimal linear or quadratic…

量子物理 · 物理学 2026-01-21 Mateusz Krawczyk , Pavel Baláž , Katarzyna Roszak , Jarosław Pawłowski