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The SPS-LASSO has recently been introduced as a solution to the problem of regularization parameter selection in the complex-valued LASSO problem. Still, the dependence on the grid size and the polynomial time of performing convex…

信息论 · 计算机科学 2012-07-31 Ashkan Panahi , Mats Viberg

Learning to improve AUC performance is an important topic in machine learning. However, AUC maximization algorithms may decrease generalization performance due to the noisy data. Self-paced learning is an effective method for handling noisy…

机器学习 · 计算机科学 2022-07-11 Bin Gu , Chenkang Zhang , Huan Xiong , Heng Huang

Federated learning (FL) has become a hot research area in enabling the collaborative training of machine learning models among multiple clients that hold sensitive local data. Nevertheless, unconstrained federated optimization has been…

机器学习 · 计算机科学 2022-08-31 Ying Cui , Yangchen Li , Chencheng Ye

Local search methods can quickly find good quality solutions in cases where systematic search methods might take a large amount of time. Moreover, in the context of pattern set mining, exhaustive search methods are not applicable due to the…

人工智能 · 计算机科学 2014-12-19 Muktadir Hossain , Tajkia Tasnim , Swakkhar Shatabda , Dewan M. Farid

Weight averaging has become a standard technique for enhancing model performance. However, methods such as Stochastic Weight Averaging (SWA) and Latest Weight Averaging (LAWA) often require manually designed procedures to sample from the…

机器学习 · 计算机科学 2025-02-17 Peng Wang , Shengchao Hu , Zerui Tao , Guoxia Wang , Dianhai Yu , Li Shen , Quan Zheng , Dacheng Tao

In this paper we consider the unconstrained minimization problem of a smooth function in ${\mathbb{R}}^n$ in a setting where only function evaluations are possible. We design a novel randomized derivative-free algorithm --- the stochastic…

最优化与控制 · 数学 2019-05-08 El Houcine Bergou , Eduard Gorbunov , Peter Richtárik

In deterministic optimization, line searches are a standard tool ensuring stability and efficiency. Where only stochastic gradients are available, no direct equivalent has so far been formulated, because uncertain gradients do not allow for…

机器学习 · 计算机科学 2017-07-03 Maren Mahsereci , Philipp Hennig

In deterministic optimization, line searches are a standard tool ensuring stability and efficiency. Where only stochastic gradients are available, no direct equivalent has so far been formulated, because uncertain gradients do not allow for…

机器学习 · 计算机科学 2016-01-19 Maren Mahsereci , Philipp Hennig

This work, for the first time, introduces two constant factor approximation algorithms with linear query complexity for non-monotone submodular maximization over a ground set of size $n$ subject to a knapsack constraint, $\mathsf{DLA}$ and…

数据结构与算法 · 计算机科学 2023-07-11 Canh V. Pham , Tan D. Tran , Dung T. K. Ha , My T. Thai

Estimating the maximum mean finds a variety of applications in practice. In this paper, we study estimation of the maximum mean using an upper confidence bound (UCB) approach where the sampling budget is adaptively allocated to one of the…

统计理论 · 数学 2024-08-09 Zhang Kun , Liu Guangwu , Shi Wen

Due to the highly non-convex nature of large-scale robust parameter estimation, avoiding poor local minima is challenging in real-world applications where input data is contaminated by a large or unknown fraction of outliers. In this paper,…

计算机视觉与模式识别 · 计算机科学 2020-03-23 Huu Le , Christopher Zach

This work presents two new algorithms for performing constraint satisfaction. The first algorithm presented, DMaxWalkSat, is a constraint solver specialized for solving dynamic, weighted constraint satisfaction problems. The second…

人工智能 · 计算机科学 2015-07-23 Gregory Hasseler

We propose a new random method to minimize deterministic continuous functions over subsets $\mathcal{S}$ of high-dimensional space $\mathbb{R}^K$ without assuming convexity. Our procedure alternates between a Global Search (GS) regime to…

数据分析、统计与概率 · 物理学 2025-06-09 Pierre Bertrand , Michel Broniatowski , Wolfgang Stummer

This paper addresses the Longest Filled Common Subsequence (LFCS) problem, a challenging NP-hard problem with applications in bioinformatics, including gene mutation prediction and genomic data reconstruction. Existing approaches, including…

声音 · 计算机科学 2026-02-25 Marko Djukanovic , Christian Blum , Aleksandar Kartelj , Ana Nikolikj , Guenther Raidl

We present a fully probabilistic approach for solving binary optimization problems with black-box objective functions and with budget constraints. In the probabilistic approach, the optimization variable is viewed as a random variable and…

最优化与控制 · 数学 2024-06-11 Ahmed Attia

The Constraint Satisfaction Problem (CSP) framework offers a simple and sound basis for representing and solving simple decision problems, without uncertainty. This paper is devoted to an extension of the CSP framework enabling us to deal…

人工智能 · 计算机科学 2013-02-21 Helene Fargier , Jerome Lang , Roger Martin-Clouaire , Thomas Schiex

In this paper, we study the conditional stochastic optimization (CSO) problem which covers a variety of applications including portfolio selection, reinforcement learning, robust learning, causal inference, etc. The sample-averaged gradient…

机器学习 · 计算机科学 2023-12-05 Lie He , Shiva Prasad Kasiviswanathan

Local search is an effective method for solving large-scale combinatorial optimization problems, and it has made remarkable progress in recent years through several subtle mechanisms. In this paper, we found two ways to improve the local…

人工智能 · 计算机科学 2023-06-30 Luyu Jiang , Dantong Ouyang , Qi Zhang , Liming Zhang

Large Language Models (LLMs) have demonstrated remarkable progress in instruction following and general-purpose reasoning. However, achieving high-quality alignment with human intent and safety norms without human annotations remains a…

人工智能 · 计算机科学 2025-07-24 Haoran Sun , Zekun Zhang , Shaoning Zeng

There has been an increasing concern to reduce the energy consumption in manufacturing and other industries. Energy consumption in manufacturing industries is directly related to efficient schedules. The contribution of this paper includes:…

最优化与控制 · 数学 2025-03-04 Vigneshwar Pesaru , Venkataramanaiah Saddikuti