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Estimation of information theoretic quantities such as mutual information and its conditional variant has drawn interest in recent times owing to their multifaceted applications. Newly proposed neural estimators for these quantities have…

The mutual information (MI) between two random variables is an important correlation measure in data analysis. The Shannon entropy of a joint probability distribution is the variable part under fixed marginals. We aim to minimize and…

最优化与控制 · 数学 2025-09-08 Paula Franke , Kay Hamacher , Paul Manns

We investigate the problem of selecting features for datasets that can be naturally partitioned into subgroups (e.g., according to socio-demographic groups and age), each with its own dominant set of features. Within this subgroup-oriented…

机器学习 · 计算机科学 2024-12-10 Bar Genossar , Thinh On , Md. Mouinul Islam , Ben Eliav , Senjuti Basu Roy , Avigdor Gal

Affine frequency division multiplexing (AFDM), tailored as a novel multicarrier technique utilizing chirp signals for high-mobility communications, exhibits marked advantages compared to traditional orthogonal frequency division…

信息论 · 计算机科学 2024-02-26 Guangyao Liu , Tianqi Mao , Ruiqi Liu , Zhenyu Xiao

Despite the popularity of feature importance (FI) measures in interpretable machine learning, the statistical adequacy of these methods is rarely discussed. From a statistical perspective, a major distinction is between analyzing a…

机器学习 · 统计学 2023-05-03 Kristin Blesch , David S. Watson , Marvin N. Wright

This work presents a new method for online selection of multiple penalty parameters for the alternating direction method of multipliers (ADMM) algorithm applied to optimization problems with multiple constraints or functionals with block…

图像与视频处理 · 电气工程与系统科学 2026-04-21 Luke Lozenski , Michael T. McCann , Brendt Wohlberg

Factorization Machines (FM), a general predictor that can efficiently model feature interactions in linear time, was primarily proposed for collaborative recommendation and have been broadly used for regression, classification and ranking…

机器学习 · 计算机科学 2021-08-18 Yu Geng , Liang Lan

Due to its inferior characteristics, an observed (noisy) image's direct use gives rise to poor segmentation results. Intuitively, using its noise-free image can favorably impact image segmentation. Hence, the accurate estimation of the…

图像与视频处理 · 电气工程与系统科学 2020-10-12 Cong Wang , Witold Pedrycz , ZhiWu Li , MengChu Zhou

Factorization machines (FMs) are widely used in recommender systems due to their adaptability and ability to learn from sparse data. However, for the ubiquitous non-interactive features in sparse data, existing FMs can only estimate the…

信息检索 · 计算机科学 2022-06-20 Chenwang Wu , Defu Lian , Yong Ge , Min Zhou , Enhong Chen , Dacheng Tao

One of the key challenges in federated learning (FL) is local data distribution heterogeneity across clients, which may cause inconsistent feature spaces across clients. To address this issue, we propose a novel method FedFM, which guides…

机器学习 · 计算机科学 2022-10-17 Rui Ye , Zhenyang Ni , Chenxin Xu , Jianyu Wang , Siheng Chen , Yonina C. Eldar

The concepts of conditional mutual information (CMI) and normalized conditional mutual information (NCMI) are introduced to measure the concentration and separation performance of a classification deep neural network (DNN) in the output…

机器学习 · 计算机科学 2023-09-19 En-Hui Yang , Shayan Mohajer Hamidi , Linfeng Ye , Renhao Tan , Beverly Yang

Few-shot learning problem focuses on recognizing unseen classes given a few labeled images. In recent effort, more attention is paid to fine-grained feature embedding, ignoring the relationship among different distance metrics. In this…

计算机视觉与模式识别 · 计算机科学 2022-11-03 Jinxiang Lai , Siqian Yang , Guannan Jiang , Xi Wang , Yuxi Li , Zihui Jia , Xiaochen Chen , Jun Liu , Bin-Bin Gao , Wei Zhang , Yuan Xie , Chengjie Wang

The high feature dimensionality is a challenge in music emotion recognition. There is no common consensus on a relation between audio features and emotion. The MER system uses all available features to recognize emotion; however, this is…

声音 · 计算机科学 2022-12-29 Le Cai , Sam Ferguson , Haiyan Lu , Gengfa Fang

Feature selection with specific multivariate performance measures is the key to the success of many applications, such as image retrieval and text classification. The existing feature selection methods are usually designed for…

机器学习 · 计算机科学 2015-03-19 Qi Mao , Ivor W. Tsang

Feature selection methods are usually evaluated by wrapping specific classifiers and datasets in the evaluation process, resulting very often in unfair comparisons between methods. In this work, we develop a theoretical framework that…

机器学习 · 统计学 2016-10-11 Cláudia Pascoal , M. Rosário Oliveira , António Pacheco , Rui Valadas

This paper presents a novel mutual information (MI) matrix based method for fault detection. Given a $m$-dimensional fault process, the MI matrix is a $m \times m$ matrix in which the $(i,j)$-th entry measures the MI values between the…

信号处理 · 电气工程与系统科学 2021-02-19 Feiya Lv , Shujian Yu , Chenglin Wen , Jose C. Principe

The resurgence of near-memory processing (NMP) with the advent of big data has shifted the computation paradigm from processor-centric to memory-centric computing. To meet the bandwidth and capacity demands of memory-centric computing, 3D…

硬件体系结构 · 计算机科学 2021-04-29 Pritam Majumder , Jiayi Huang , Sungkeun Kim , Abdullah Muzahid , Dylan Siegers , Chia-Che Tsai , Eun Jung Kim

Factorization Machines (FMs) are a supervised learning approach that enhances the linear regression model by incorporating the second-order feature interactions. Despite effectiveness, FM can be hindered by its modelling of all feature…

机器学习 · 计算机科学 2017-08-17 Jun Xiao , Hao Ye , Xiangnan He , Hanwang Zhang , Fei Wu , Tat-Seng Chua

Variable selection in cluster analysis is important yet challenging. It can be achieved by regularization methods, which realize a trade-off between the clustering accuracy and the number of selected variables by using a lasso-type penalty.…

统计方法学 · 统计学 2016-12-23 Marbac Matthieu , Sedki Mohammed

Estimating mutual information between continuous random variables is often intractable and extremely challenging for high-dimensional data. Recent progress has leveraged neural networks to optimize variational lower bounds on mutual…

机器学习 · 计算机科学 2020-12-01 Ruizhi Liao , Daniel Moyer , Polina Golland , William M. Wells