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State-space models (SSMs) are a highly expressive model class for learning patterns in time series data and for system identification. Deterministic versions of SSMs (e.g. LSTMs) proved extremely successful in modeling complex time series…

Partial least square regression (PLSR) is a widely-used statistical model to reveal the linear relationships of latent factors that comes from the independent variables and dependent variables. However, traditional methods to solve PLSR…

机器学习 · 计算机科学 2022-08-16 Wanguang Yin , Zhichao Liang , Jianguo Zhang , Quanying Liu

Personalized learning is a student-centered educational approach that adapts content, pace, and assessment to meet each learner's unique needs. As the key technique to implement the personalized learning, learning path recommendation…

信息检索 · 计算机科学 2025-07-09 Afsana Nasrin , Lijun Qian , Pamela Obiomon , Xishuang Dong

Exponential models of distributions are widely used in machine learning for classiffication and modelling. It is well known that they can be interpreted as maximum entropy models under empirical expectation constraints. In this work, we…

机器学习 · 计算机科学 2012-07-19 Amir Globerson , Naftali Tishby

Least squares (LS)-based subset selection methods are popular in linear regression modeling. Best subset selection (BS) is known to be NP-hard and has a computational cost that grows exponentially with the number of predictors. Recently,…

统计方法学 · 统计学 2021-03-09 Sen Tian , Clifford M. Hurvich , Jeffrey S. Simonoff

Federated semi-supervised learning (FSSL) has emerged as a powerful paradigm for collaboratively training machine learning models using distributed data with label deficiency. Advanced FSSL methods predominantly focus on training a single…

机器学习 · 计算机科学 2024-02-23 Yonggang Zhang , Zhiqin Yang , Xinmei Tian , Nannan Wang , Tongliang Liu , Bo Han

We propose a novel algorithm for greedy forward feature selection for regularized least-squares (RLS) regression and classification, also known as the least-squares support vector machine or ridge regression. The algorithm, which we call…

机器学习 · 统计学 2010-03-19 Tapio Pahikkala , Antti Airola , Tapio Salakoski

In many prediction problems, we have extra information during training (for example, measurements that are expensive or slow to collect) that will not be available when the model is deployed. A common strategy is to first train a model that…

机器学习 · 统计学 2026-05-25 Jiahao Shi , Omar Hagrass , Jason M. Klusowski

Safe reinforcement learning (RL) aims to learn policies that satisfy certain constraints before deploying them to safety-critical applications. Previous primal-dual style approaches suffer from instability issues and lack optimality…

机器学习 · 计算机科学 2022-06-20 Zuxin Liu , Zhepeng Cen , Vladislav Isenbaev , Wei Liu , Zhiwei Steven Wu , Bo Li , Ding Zhao

Low-rank tensor representation (LRTR) has emerged as a powerful tool for multi-dimensional data processing. However, classical LRTR-based methods face two critical limitations: (1) they typically assume that the holistic data is low-rank,…

计算机视觉与模式识别 · 计算机科学 2025-08-21 Zhizhou Wang , Jianli Wang , Ruijing Zheng , Zhenyu Wu

We extend the existing framework of semi-implicit variational inference (SIVI) and introduce doubly semi-implicit variational inference (DSIVI), a way to perform variational inference and learning when both the approximate posterior and the…

机器学习 · 统计学 2019-03-19 Dmitry Molchanov , Valery Kharitonov , Artem Sobolev , Dmitry Vetrov

Conventional multi-view re-ranking methods usually perform asymmetrical matching between the region of interest (ROI) in the query image and the whole target image for similarity computation. Due to the inconsistency in the visual…

计算机视觉与模式识别 · 计算机科学 2018-08-15 Jun Li , Chang Xu , Wankou Yang , Changyin Sun , Dacheng Tao , Hong Zhang

Deploying complex machine learning models on resource-constrained devices is challenging due to limited computational power, memory, and model retrainability. To address these limitations, a hybrid system can be established by augmenting…

机器学习 · 计算机科学 2025-04-18 Yu Wu , Yansong Li , Zeyu Dong , Nitya Sathyavageeswaran , Anand D. Sarwate

This paper presents a review on methods for class-imbalanced learning with the Support Vector Machine (SVM) and its variants. We first explain the structure of SVM and its variants and discuss their inefficiency in learning with…

机器学习 · 计算机科学 2024-07-23 Salim Rezvani , Farhad Pourpanah , Chee Peng Lim , Q. M. Jonathan Wu

In most Vision-Language models (VL), the understanding of the image structure is enabled by injecting the position information (PI) about objects in the image. In our case study of LXMERT, a state-of-the-art VL model, we probe the use of…

计算与语言 · 计算机科学 2023-05-18 Philipp J. Rösch , Jindřich Libovický

In many real-world reinforcement learning (RL) problems, the environment exhibits inherent symmetries that can be exploited to improve learning efficiency. This paper develops a theoretical and algorithmic framework for incorporating known…

机器学习 · 计算机科学 2026-04-29 Alexandru Cioba , Aya Kayal , Laura Toni , Sattar Vakili , Alberto Bernacchia

Reinforcement Learning with Verifiable Rewards (RLVR) elicits long chain-of-thought reasoning in large language models (LLMs), but outcome-based rewards lead to coarse-grained advantage estimation. While existing approaches improve RLVR via…

计算与语言 · 计算机科学 2026-01-08 Fei Wu , Zhenrong Zhang , Qikai Chang , Jianshu Zhang , Quan Liu , Jun Du

Designing learning agents that explore efficiently in a complex environment has been widely recognized as a fundamental challenge in reinforcement learning. While a number of works have demonstrated the effectiveness of techniques based on…

机器学习 · 计算机科学 2025-06-17 Yan Chen , Qinxun Bai , Yiteng Zhang , Shi Dong , Maria Dimakopoulou , Qi Sun , Zhengyuan Zhou

In this paper, we introduce a novel combined reward cum penalty loss function to handle the regression problem. The proposed combined reward cum penalty loss function penalizes the data points which lie outside the $\epsilon$-tube of the…

机器学习 · 计算机科学 2020-05-05 Pritam Anand , Reshma Rastogi , Suresh Chandra

Nonparametric partitioning-based least squares regression is an important tool in empirical work. Common examples include regressions based on splines, wavelets, and piecewise polynomials. This article discusses the main methodological and…

统计计算 · 统计学 2020-10-29 Matias D. Cattaneo , Max H. Farrell , Yingjie Feng