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In this paper, we aim to develop a simple and scalable reinforcement learning algorithm that uses standard supervised learning methods as subroutines. Our goal is an algorithm that utilizes only simple and convergent maximum likelihood loss…

机器学习 · 计算机科学 2019-10-09 Xue Bin Peng , Aviral Kumar , Grace Zhang , Sergey Levine

We present combinatorial approximation algorithms for the weighted correlation clustering problem. In this problem, we have a set of vertices and two weight values for each pair of vertices, denoting their difference and similarity. The…

数据结构与算法 · 计算机科学 2025-07-16 Mojtaba Ostovari , Alireza Zarei

Ordinal regression (OR) is a special multiclass classification problem where an order relation exists among the labels. Recent years, people share their opinions and sentimental judgments conveniently with social networks and E-Commerce so…

机器学习 · 计算机科学 2018-12-21 Yong Shi , Huadong Wang , Xin Shen , Lingfeng Niu

The aim of ordinal classification is to predict the ordered labels of the output from a set of observed inputs. Interval-valued data refers to data in the form of intervals. For the first time, interval-valued data and interval-valued…

统计方法学 · 统计学 2023-11-06 Aleix Alcacer , Marina Martínez-Garcia , Irene Epifanio

Generalisation of a deep neural network (DNN) is one major concern when employing the deep learning approach for solving practical problems. In this paper we propose a new technique, named approximated orthonormal normalisation (AON), to…

机器学习 · 计算机科学 2020-01-15 Guoqiang Zhang , Kenta Niwa , W. B. Kleijn

We study the Euclidean minimum weight perfect matching problem for $n$ points in the plane. It is known that any deterministic approximation algorithm whose approximation ratio depends only on $n$ requires at least $\Omega(n \log n)$ time.…

计算几何 · 计算机科学 2026-01-09 Stefan Hougardy , Karolina Tammemaa

Group Ordered Weighted $L_{1}$-Norm (Group OWL) regularized models have emerged as a useful procedure for high-dimensional sparse multi-task learning with correlated features. Proximal gradient methods are used as standard approaches to…

机器学习 · 计算机科学 2025-04-09 Runxue Bao , Quanchao Lu , Yanfu Zhang

This paper deals with an extension of the Support Vector Machine (SVM) for classification problems where, in addition to maximize the margin, i.e., the width of strip defined by the two supporting hyperplanes, the minimum of the ordered…

Given complex numbers $w_1, \ldots, w_n$, we define the weight $w(X)$ of a set $X$ of 0-1 vectors as the sum of $w_1^{x_1} \cdots w_n^{x_n}$ over all vectors $(x_1, \ldots, x_n)$ in $X$. We present an algorithm, which for a set $X$ defined…

组合数学 · 数学 2019-08-15 Alexander Barvinok , Guus Regts

We propose a metric -- Projection Norm -- to predict a model's performance on out-of-distribution (OOD) data without access to ground truth labels. Projection Norm first uses model predictions to pseudo-label test samples and then trains a…

机器学习 · 计算机科学 2022-02-14 Yaodong Yu , Zitong Yang , Alexander Wei , Yi Ma , Jacob Steinhardt

In the load balancing problem, the input is an $n$-vertex bipartite graph $G = (C \cup S, E)$ and a positive weight for each client $c \in C$. The algorithm must assign each client $c \in C$ to an adjacent server $s \in S$. The load of a…

分布式、并行与集群计算 · 计算机科学 2020-11-26 Sepehr Assadi , Aaron Bernstein , Zachary Langley

The main goal in this paper is to propose a new method for deriving oracle inequalities related to the exponential weighting method. For the sake of simplicity we focus on recovering an unknown vector from noisy data with the help of a…

统计理论 · 数学 2012-11-20 Elena Chernousova , Yuri Golubev , Katerina Krymova

Tuning the regularization parameter in penalized regression models is an expensive task, requiring multiple models to be fit along a path of parameters. Strong screening rules drastically reduce computational costs by lowering the…

机器学习 · 统计学 2025-05-07 Fabio Feser , Marina Evangelou

We propose a new method for high-dimensional semi-supervised learning problems based on the careful aggregation of the results of a low-dimensional procedure applied to many axis-aligned random projections of the data. Our primary goal is…

统计方法学 · 统计学 2023-04-19 Tengyao Wang , Edgar Dobriban , Milana Gataric , Richard J. Samworth

Looking for sparsity is nowadays crucial to speed up the training of large-scale neural networks. Projections onto the $\ell_{1,2}$ and $\ell_{1,\infty}$ are among the most efficient techniques to sparsify and reduce the overall cost of…

机器学习 · 计算机科学 2025-02-28 Guillaume Perez , Laurent Condat , Michel Barlaud

Extending generalized estimating equations (GEE) to ordinal response data requires a conversion of the ordinal response to a vector of binary category indicators. That leads to a rather complicated association structure, and the…

统计方法学 · 统计学 2017-05-23 Aristidis K. Nikoloulopoulos

In this paper we develop a new family of Ordered Weighted Averaging (OWA) operators. Weight vector is obtained from a desired orness of the operator. Using Faulhaber's formulas we obtain direct and simple expressions for the weight vector…

人工智能 · 计算机科学 2018-02-01 Oscar Duarte , Sandra Téllez

The main contributions of this paper are the proposition and the convergence analysis of a class of inertial projection-type algorithm for solving variational inequality problems in real Hilbert spaces where the underline operator is…

最优化与控制 · 数学 2021-01-25 Yekini Shehu , Olaniyi. S. Iyiola , Xiao-Huan Li , Qiao-Li Dong

In this paper, we introduce a novel data transformation framework based on Opposition-Based Learning (OBL) to boost the performance of traditional classification algorithms. Originally developed to accelerate convergence in optimization…

机器学习 · 计算机科学 2025-04-28 Abdesslem Layeb

Balls are sequentially allocated into $n$ bins as follows: for each ball, an independent, uniformly random bin is generated. An overseer may then choose to either allocate the ball to this bin, or else the ball is allocated to a new…

概率论 · 数学 2018-07-04 Ohad N. Feldheim , Ori Gurel-Gurevich