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In a high-dimensional setting, sparse model has shown its power in computational and statistical efficiency. We consider variables selection problem with a broad class of simultaneous sparsity regularization, enforcing both feature-wise and…

Optimization and Control · Mathematics 2021-09-27 Xinyu Zhang

As representation learning becomes a powerful technique to reduce sample complexity in reinforcement learning (RL) in practice, theoretical understanding of its advantage is still limited. In this paper, we theoretically characterize the…

Machine Learning · Computer Science 2022-06-14 Yuan Cheng , Songtao Feng , Jing Yang , Hong Zhang , Yingbin Liang

Multi-task learning (MTL) jointly learns a set of tasks by sharing parameters among tasks. It is a promising approach for reducing storage costs while improving task accuracy for many computer vision tasks. The effective adoption of MTL…

Machine Learning · Computer Science 2022-10-03 Lijun Zhang , Xiao Liu , Hui Guan

Click-through prediction (CTR) models transform features into latent vectors and enumerate possible feature interactions to improve performance based on the input feature set. Therefore, when selecting an optimal feature set, we should…

Information Retrieval · Computer Science 2024-03-27 Fuyuan Lyu , Xing Tang , Dugang Liu , Liang Chen , Xiuqiang He , Xue Liu

Support vector machine (SVM) has achieved many successes in machine learning, especially for a small sample problem. As a famous extension of the traditional SVM, the $\nu$ support vector machine ($\nu$-SVM) has shown outstanding…

Machine Learning · Computer Science 2024-03-05 Zhiji Yang , Wanyi Chen , Huan Zhang , Yitian Xu , Lei Shi , Jianhua Zhao

Effective feature selection, representation and transformation are principal steps in machine learning to improve prediction accuracy, model generalization and computational efficiency. Reinforcement learning provides a new perspective…

Machine Learning · Computer Science 2025-03-18 Sumana Sanyasipura Nagaraju

Data-Free Meta-Learning (DFML) aims to enable efficient learning of unseen few-shot tasks, by meta-learning from multiple pre-trained models without accessing their original training data. While existing DFML methods typically generate…

Machine Learning · Computer Science 2026-04-13 Zixuan Hu , Yongxian Wei , Li Shen , Zhenyi Wang , Baoyuan Wu , Chun Yuan , Dacheng Tao

Recently, deep matrix factorization has been established as a powerful model for unsupervised tasks, achieving promising results, especially for multi-view clustering. However, existing methods often lack effective feature selection…

Machine Learning · Statistics 2024-12-04 Yasser Khalafaoui , Basarab Matei , Martino Lovisetto , Nistor Grozavu

We develop a novel form of differentiable predictive control (DPC) with safety and robustness guarantees based on control barrier functions. DPC is an unsupervised learning-based method for obtaining approximate solutions to explicit model…

Systems and Control · Electrical Eng. & Systems 2022-08-05 Wenceslao Shaw Cortez , Jan Drgona , Aaron Tuor , Mahantesh Halappanavar , Draguna Vrabie

Recently, there is a vast interest in developing image feature learning methods that are independent of the training data, such as deep image prior, InGAN, SinGAN, and DCIL. These methods are unsupervised and are used to perform low-level…

Computer Vision and Pattern Recognition · Computer Science 2020-11-10 Indra Deep Mastan , Shanmuganathan Raman

Sparse learning techniques have been routinely used for feature selection as the resulting model usually has a small number of non-zero entries. Safe screening, which eliminates the features that are guaranteed to have zero coefficients for…

Machine Learning · Computer Science 2014-05-13 Jun Liu , Zheng Zhao , Jie Wang , Jieping Ye

Task Free online continual learning (TF-CL) is a challenging problem where the model incrementally learns tasks without explicit task information. Although training with entire data from the past, present as well as future is considered as…

Machine Learning · Computer Science 2024-02-20 Byung Hyun Lee , Min-hwan Oh , Se Young Chun

This paper presents MPC-CDF, a new approach integrating control density functions (CDFs) within a model predictive control (MPC) framework to ensure safety-critical control in nonlinear dynamical systems. By using the dual formulation of…

Systems and Control · Electrical Eng. & Systems 2025-09-17 Sriram S. K. S. Narayanan , Sajad Ahmadi , Javad Mohammadpour Velni , Umesh Vaidya

This paper probes intrinsic factors behind typical failure cases (e.g. spatial inconsistency and boundary confusion) produced by the existing state-of-the-art method in face parsing. To tackle these problems, we propose a novel Decoupled…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Qingping Zheng , Jiankang Deng , Zheng Zhu , Ying Li , Stefanos Zafeiriou

Traditional deep learning methods in medical imaging often focus solely on segmentation or classification, limiting their ability to leverage shared information. Multi-task learning (MTL) addresses this by combining both tasks through…

Image and Video Processing · Electrical Eng. & Systems 2024-12-03 Phuoc-Nguyen Bui , Duc-Tai Le , Junghyun Bum , Hyunseung Choo

We consider the problem of learning a sparse rule model, a prediction model in the form of a sparse linear combination of rules, where a rule is an indicator function defined over a hyper-rectangle in the input space. Since the number of…

Machine Learning · Statistics 2025-03-13 Hiroki Kato , Hiroyuki Hanada , Ichiro Takeuchi

Obstacle avoidance of polytopic obstacles by polytopic robots is a challenging problem in optimization-based control and trajectory planning. Many existing methods rely on smooth geometric approximations, such as hyperspheres or ellipsoids,…

Robotics · Computer Science 2026-03-09 Shuo Liu , Zhe Huang , Calin A. Belta

Vertical federated learning trains models from feature-partitioned datasets across multiple clients, who collaborate without sharing their local data. Standard approaches assume that all feature partitions are available during both training…

Machine Learning · Computer Science 2025-04-23 Pedro Valdeira , Shiqiang Wang , Yuejie Chi

Vertical Federated Learning (VFL) has emerged as one of the most predominant approaches for secure collaborative machine learning where the training data is partitioned by features among multiple parties. Most VFL algorithms primarily rely…

Cryptography and Security · Computer Science 2023-06-29 Mingxuan Fan , Yilun Jin , Liu Yang , Zhenghang Ren , Kai Chen

Few-shot learning (FSL) aims to address the data-scarce problem. A standard FSL framework is composed of two components: (1) Pre-train. Employ the base data to generate a CNN-based feature extraction model (FEM). (2) Meta-test. Apply the…

Computer Vision and Pattern Recognition · Computer Science 2021-11-09 Shuai Shao , Lei Xing , Yan Wang , Rui Xu , Chunyan Zhao , Yan-Jiang Wang , Bao-Di Liu