Results 21 to 30 of about 387,320 (324)

Unsupervised feature selection using feature similarity [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2002
In this article, we describe an unsupervised feature selection algorithm suitable for data sets, large in both dimension and size. The method is based on measuring similarity between features whereby redundancy therein is removed. This does not need any search and, therefore, is fast.
P. Mitra, C.A. Murthy, S.K. Pal
openaire   +1 more source

UFODMV: Unsupervised Feature Selection for Online Dynamic Multi-Views

open access: yesApplied Sciences, 2023
In most machine learning (ML) applications, data that arrive from heterogeneous views (i.e., multiple heterogeneous sources of data) are more likely to provide complementary information than does a single view.
Fawaz Alarfaj   +5 more
doaj   +1 more source

Unsupervised Feature Selection with Adaptive Structure Learning [PDF]

open access: yes, 2015
The problem of feature selection has raised considerable interests in the past decade. Traditional unsupervised methods select the features which can faithfully preserve the intrinsic structures of data, where the intrinsic structures are estimated using
Alelyani S.   +12 more
core   +1 more source

Unsupervised Feature Selection Based on Ultrametricity and Sparse Training Data: A Case Study for the Classification of High-Dimensional Hyperspectral Data

open access: yesRemote Sensing, 2018
In this paper, we investigate the potential of unsupervised feature selection techniques for classification tasks, where only sparse training data are available.
Patrick Erik Bradley   +2 more
doaj   +1 more source

Feature subset selection and ranking for data dimensionality reduction [PDF]

open access: yes, 2007
A new unsupervised forward orthogonal search (FOS) algorithm is introduced for feature selection and ranking. In the new algorithm, features are selected in a stepwise way, one at a time, by estimating the capability of each specified candidate feature ...
Billings, S.A., Wei, H.L.
core   +1 more source

Unsupervised morphological segmentation for images [PDF]

open access: yes, 1993
This paper deals with a morphological approach to unsupervised image segmentation. The proposed technique relies on a multiscale Top-Down approach allowing a hierarchical processing of the data ranging from the most global scale to the most detailed one.
Salembier Clairon, Philippe Jean
core   +1 more source

Unsupervised Feature Selection for Noisy Data [PDF]

open access: yes, 2019
Feature selection techniques are enormously applied in a variety of data analysis tasks in order to reduce the dimensionality. According to the type of learning, feature selection algorithms are categorized to: supervised or unsupervised. In unsupervised learning scenarios, selecting features is a much harder problem, due to the lack of class labels ...
Mahdavi, Kaveh   +2 more
openaire   +1 more source

Structure Preserving Non-negative Feature Self-Representation for Unsupervised Feature Selection

open access: yesIEEE Access, 2017
Inspired by the importance of self-representation and structure-preserving ability of features, in this paper, we propose a novel unsupervised feature selection algorithm named structure-preserving non-negative feature self-representation (SPNFSR).
Wei Zhou   +3 more
doaj   +1 more source

Auto-UFSTool: An Automatic Unsupervised Feature Selection Toolbox for MATLAB [PDF]

open access: yesJournal of Artificial Intelligence and Data Mining, 2023
Various data analysis research has recently become necessary in to find and select relevant features without class labels using Unsupervised Feature Selection (UFS) approaches. Despite the fact that several open-source toolboxes provide feature selection
Farhad Abedinzadeh Torghabeh   +2 more
doaj   +1 more source

ENTROPY BASED GREEDY UNSUPERVISED FEATURE SELECTION METHOD USING ROUGH SET THEORY FOR CLASSIFICATION

open access: yesICTACT Journal on Soft Computing, 2022
Feature selection technique attempts to select and remove irrelevant features while ensuring that an informative subset of features remains in the dataset.
Rubul Kumar Bania, Satyajit Sarmah
doaj   +1 more source

Home - About - Disclaimer - Privacy