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The problem of interest is the minimization of a nonlinear function subject to nonlinear equality constraints using a sequential quadratic programming (SQP) method. The minimization must be performed while observing only noisy evaluations…

最优化与控制 · 数学 2021-10-12 Figen Oztoprak , Richard Byrd , Jorge Nocedal

We present a mixed-precision benchmark called HPL-MxP that uses both a lower-precision LU factorization with a non-stationary iterative refinement based on GMRES. We evaluate the numerical stability of one of the methods of generating the…

数值分析 · 数学 2025-09-25 Jack Dongarra , Piotr Luszczek

Reinforcement learning (RL) has emerged as a promising strategy for finetuning small language models (SLMs) to solve targeted tasks such as math and coding. However, RL algorithms tend to be resource-intensive, taking a significant amount…

机器学习 · 计算机科学 2025-10-07 Lianghuan Huang , Sagnik Anupam , Insup Lee , Shuo Li , Osbert Bastani

This study proposes a large language model optimization method based on the improved LoRA fine-tuning algorithm, aiming to improve the accuracy and computational efficiency of the model in natural language processing tasks. We fine-tune the…

计算与语言 · 计算机科学 2024-12-30 Jiacheng Hu , Xiaoxuan Liao , Jia Gao , Zhen Qi , Hongye Zheng , Chihang Wang

This letter presents an improved version of diffusion least mean ppower (LMP) algorithm for distributed estimation. Instead of sum of mean square errors, a weighted sum of mean square error is defined as the cost function for global and…

机器学习 · 统计学 2016-08-09 H. Zayyani , M. Korki

We analyze the bit complexity of efficient algorithms for fundamental optimization problems, such as linear regression, $p$-norm regression, and linear programming (LP). State-of-the-art algorithms are iterative, and in terms of the number…

数据结构与算法 · 计算机科学 2023-04-06 Mehrdad Ghadiri , Richard Peng , Santosh S. Vempala

Pairwise Ranking Prompting (PRP) elicits pairwise preference judgments from an LLM, which are then aggregated into a ranking, usually via classical sorting algorithms. However, judgments are noisy, order-sensitive, and sometimes…

We introduce a novel family of adaptive filtering algorithms based on a relative logarithmic cost. The new family intrinsically combines the higher and lower order measures of the error into a single continuous update based on the error…

机器学习 · 计算机科学 2015-06-18 Muhammed O. Sayin , N. Denizcan Vanli , Suleyman S. Kozat

Most of the surveillance systems for public safety are solely based on one or more video cameras. These camera systems have some drawbacks such that they have poor performance in adverse weather conditions or during night time. Therefore…

声音 · 计算机科学 2019-06-18 Yuksel Arslan

Reinforcement learning with verifiable rewards (RLVR) has recently unlocked strong reasoning capabilities in large language models (LLMs), triggering rapid exploration of new algorithms and data. However, RLVR training is notoriously…

Power line interference may severely corrupt neural recordings at 50/60 Hz and harmonic frequencies. In this paper, we present a robust and computationally efficient algorithm for removing power line interference from neural recordings. The…

系统与控制 · 计算机科学 2014-03-25 Mohammad Reza Keshtkaran , Zhi Yang

Noise reduction is one the most important and still active research topic in low-level image processing due to its high impact on object detection and scene understanding for computer vision systems. Recently, we can observe a substantial…

计算机视觉与模式识别 · 计算机科学 2020-05-22 Krystian Radlak , Lukasz Malinski , Bogdan Smolka

The dichotomous coordinate descent (DCD) algorithm has been successfully used for significant reduction in the complexity of recursive least squares (RLS) algorithms. In this work, we generalize the application of the DCD algorithm to RLS…

机器学习 · 计算机科学 2019-08-20 Y. Yu , L. Lu , Z. Zheng , W. Wang , Y. Zakharov , R. C. de Lamare

Reinforcement learning (RL) in episodic, factored Markov decision processes (FMDPs) is studied. We propose an algorithm called FMDP-BF, which leverages the factorization structure of FMDP. The regret of FMDP-BF is shown to be exponentially…

机器学习 · 计算机科学 2021-03-11 Xiaoyu Chen , Jiachen Hu , Lihong Li , Liwei Wang

Large Language Models (LLMs) have shown remarkable performance across various tasks, but the escalating demands on computational resources pose significant challenges, particularly in the extensive utilization of full fine-tuning for…

机器学习 · 计算机科学 2025-01-07 Jia-Hong Huang , Yixian Shen , Hongyi Zhu , Stevan Rudinac , Evangelos Kanoulas

Federated Learning (FL) with parameter-efficient fine-tuning, such as Low-Rank Adaptation (LoRA), enables scalable model training on distributed data. However, when combined with Differential Privacy (DP), LoRA often introduces errors…

密码学与安全 · 计算机科学 2026-05-12 Linh Tran , Ana Milanova , Stacy Patterson

Although well-established in general reinforcement learning (RL), value-based methods are rarely explored in constrained RL (CRL) for their incapability of finding policies that can randomize among multiple actions. To apply value-based…

机器学习 · 计算机科学 2022-06-28 Tianchi Cai , Wenpeng Zhang , Lihong Gu , Xiaodong Zeng , Jinjie Gu

This paper has been withdrawn by the authors. In this paper, we propose a new low power coding technique by decreasing the number of switching activities on the buses which use transition signaling to transmit data. This approach dedicates…

其他计算机科学 · 计算机科学 2013-02-12 Mehdi Taassori , Meysam Taassori , Sener Uysal

Researchers are exploring novel computational paradigms such as sparse coding and neuromorphic computing to bridge the efficiency gap between the human brain and conventional computers in complex tasks. A key area of focus is neuromorphic…

音频与语音处理 · 电气工程与系统科学 2025-09-01 Soufiyan Bahadi , Eric Plourde , Jean Rouat

The conventional normalized subband p-norm (NSPN) algorithm achieves robustness in $\alpha$-stable noise ($1<\alpha \leq 2$) by utilizing low-order error moments. However, its performance degrades significantly under three scenarios: (1)…

音频与语音处理 · 电气工程与系统科学 2026-05-19 Jianhong Ye , Haiquan Zhao , Shaohui Lv , Yang Zhou