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The singular value decomposition (SVD) is a crucial tool in machine learning and statistical data analysis. However, it is highly susceptible to outliers in the data matrix. Existing robust SVD algorithms often sacrifice speed for…

机器学习 · 统计学 2024-02-16 Sangil Han , Kyoowon Kim , Sungkyu Jung

Unsupervised discretization is a crucial step in many knowledge discovery tasks. The state-of-the-art method for one-dimensional data infers locally adaptive histograms using the minimum description length (MDL) principle, but the…

机器学习 · 计算机科学 2022-12-12 Lincen Yang , Mitra Baratchi , Matthijs van Leeuwen

It has been experimentally observed that distributed implementations of mini-batch stochastic gradient descent (SGD) algorithms exhibit speedup saturation and decaying generalization ability beyond a particular batch-size. In this work, we…

机器学习 · 计算机科学 2018-01-09 Dong Yin , Ashwin Pananjady , Max Lam , Dimitris Papailiopoulos , Kannan Ramchandran , Peter Bartlett

Discrete diffusion models (DDMs) have shown powerful generation ability for discrete data modalities like text and molecules. However, their practical application is hindered by inefficient sampling, requiring a large number of sampling…

机器学习 · 计算机科学 2025-09-25 Feiyang Fu , Tongxian Guo , Zhaoqiang Liu

In the list-decodable learning setup, an overwhelming majority (say a $1-\beta$-fraction) of the input data consists of outliers and the goal of an algorithm is to output a small list $\mathcal{L}$ of hypotheses such that one of them agrees…

数据结构与算法 · 计算机科学 2019-05-14 Prasad Raghavendra , Morris Yau

The major challenge of learning from multi-label data has arisen from the overwhelming size of label space which makes this problem NP-hard. This problem can be alleviated by gradually involving easy to hard tags into the learning process.…

机器学习 · 计算机科学 2019-10-09 Seyed Amjad Seyedi , S. Siamak Ghodsi , Fardin Akhlaghian , Mahdi Jalili , Parham Moradi

In recent years, deep learning technology has been maturely applied in the field of object detection, and most algorithms tend to be supervised learning. However, a large amount of labeled data requires high costs of human resources, which…

计算机视觉与模式识别 · 计算机科学 2023-06-27 Yanyang Wang , Zhaoxiang Liu , Shiguo Lian

Community detection refers to finding densely connected groups of nodes in graphs. In important applications, such as cluster analysis and network modelling, the graph is sparse but outliers and heavy-tailed noise may obscure its structure.…

信号处理 · 电气工程与系统科学 2020-11-19 Aylin Tastan , Michael Muma , Abdelhak M. Zoubir

This work presents a hybrid approach to solve the maximum stable set problem, using constraint and semidefinite programming. The approach consists of two steps: subproblem generation and subproblem solution. First we rank the variable…

组合数学 · 数学 2007-05-23 W. J. van Hoeve

Label distribution learning (LDL) is an effective method to predict the relative label description degree (a.k.a. label distribution) of a sample. However, the label distribution is not a complete representation of an instance because it…

机器学习 · 计算机科学 2025-05-29 Jiawei Tang , Yuheng Jia

We aim to address Multi-Task Learning (MTL) with a large number of tasks by Multi-Task Grouping (MTG). Given N tasks, we propose to simultaneously identify the best task groups from 2^N candidates and train the model weights simultaneously…

机器学习 · 计算机科学 2024-07-09 Yuan Gao , Shuguo Jiang , Moran Li , Jin-Gang Yu , Gui-Song Xia

Multi-task Learning (MTL) for classification with disjoint datasets aims to explore MTL when one task only has one labeled dataset. In existing methods, for each task, the unlabeled datasets are not fully exploited to facilitate this task.…

计算机视觉与模式识别 · 计算机科学 2020-03-17 Yan Hong , Li Niu , Jianfu Zhang , Liqing Zhang

In subgroup discovery, also known as supervised pattern mining, discovering high quality one-dimensional subgroups and refinements of these is a crucial task. For nominal attributes, this is relatively straightforward, as we can consider…

机器学习 · 统计学 2015-10-29 Hoang-Vu Nguyen , Jilles Vreeken

One of the most useful measures of cluster quality is the modularity of a partition, which measures the difference between the number of the edges joining vertices from the same cluster and the expected number of such edges in a random…

数据分析、统计与概率 · 物理学 2009-09-29 Hristo Djidjev

This paper presents a batch-wise density-based clustering approach for local outlier detection in massive-scale datasets. Unlike the well-known traditional algorithms, which assume that all the data is memory-resident, our proposed method…

机器学习 · 计算机科学 2021-07-06 Sayyed Ahmad Naghavi Nozad , Maryam Amir Haeri , Gianluigi Folino

The minimum covariance determinant (MCD) estimator is ubiquitous in multivariate analysis, the critical step of which is to select a subset of a given size with the lowest sample covariance determinant. The concentration step (C-step) is a…

统计方法学 · 统计学 2023-05-16 Maoyu Zhang , Yan Song , Wenlin Dai

Semi-Supervised Semantic Segmentation (SSSS) aims to improve segmentation accuracy by leveraging a small set of labeled images alongside a larger pool of unlabeled data. Recent advances primarily focus on pseudo-labeling, consistency…

计算机视觉与模式识别 · 计算机科学 2025-05-27 Dinh Dai Quan Tran , Hoang-Thien Nguyen , Thanh-Huy Nguyen , Gia-Van To , Tien-Huy Nguyen , Quan Nguyen

An ideal outcome of pattern mining is a small set of informative patterns, containing no redundancy or noise, that identifies the key structure of the data at hand. Standard frequent pattern miners do not achieve this goal, as due to the…

数据结构与算法 · 计算机科学 2019-02-11 Nikolaj Tatti , Jilles Vreeken

Huge amount of applications in various fields, such as gene expression analysis or computer vision, undergo data sets with high-dimensional low-sample-size (HDLSS), which has putted forward great challenges for standard statistical and…

机器学习 · 计算机科学 2022-06-07 Liran Shen , Meng Joo Er , Qingbo Yin

The problem of Novel Class Discovery (NCD) consists in extracting knowledge from a labeled set of known classes to accurately partition an unlabeled set of novel classes. While NCD has recently received a lot of attention from the…

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