Results 21 to 30 of about 2,550,298 (280)

The algorithm audit: Scoring the algorithms that score us

open access: yesBig Data & Society, 2021
In recent years, the ethical impact of AI has been increasingly scrutinized, with public scandals emerging over biased outcomes, lack of transparency, and the misuse of data.
S. Brown, Jovana Davidović, Ali Hasan
semanticscholar   +1 more source

Group-theoretic algorithms for matrix multiplication [PDF]

open access: yes, 2005
We further develop the group-theoretic approach to fast matrix multiplication introduced by Cohn and Umans, and for the first time use it to derive algorithms asymptotically faster than the standard algorithm.
Cohn, Henry   +3 more
core   +3 more sources

Wireless Sensor Network Localization via Matrix Completion Based on Bregman Divergence

open access: yesSensors, 2018
One of the main challenges faced by wireless sensor network (WSN) localization is the positioning accuracy of the WSN node. The existing algorithms are arduous to use for dealing with the pulse noise that is universal and ineluctable in practical ...
Chunsheng Liu, Hong Shan, Bin Wang
doaj   +1 more source

Orthogonalization of the Sensing Matrix Through Dominant Columns in Compressive Sensing for Speech Enhancement

open access: yesApplied Sciences, 2023
This paper introduces a novel speech enhancement approach called dominant columns group orthogonalization of the sensing matrix (DCGOSM) in compressive sensing (CS).
Vasundhara Shukla, Preety D. Swami
doaj   +1 more source

The improved FASTmrEMMA and GCIM algorithms for genome-wide association and linkage studies in large mapping populations

open access: yesCrop Journal, 2020
Owing to high power and accuracy and low false positive rate in our multi-locus approaches for genome-wide association studies and linkage analyses, these approaches have attracted considerable attention in plant and animal genetics.
Yangjun Wen   +4 more
doaj   +1 more source

Investigating the feature extraction capabilities of non-negative matrix factorisation algorithms for black-and-white images [PDF]

open access: yesITM Web of Conferences
Nonnegative matrix factorisation (NMF) is a class of matrix factorisation methods to approximate a nonnegative matrix as a product of two nonnegative matrices.
Liew How Hui   +2 more
doaj   +1 more source

Exploring corner transfer matrices and corner tensors for the classical simulation of quantum lattice systems [PDF]

open access: yes, 2012
In this paper we explore the practical use of the corner transfer matrix and its higher-dimensional generalization, the corner tensor, to develop tensor network algorithms for the classical simulation of quantum lattice systems of infinite size.
A. Altland   +5 more
core   +2 more sources

Randomized Matrix Decompositions Using R

open access: yesJournal of Statistical Software, 2019
Matrix decompositions are fundamental tools in the area of applied mathematics, statistical computing, and machine learning. In particular, low-rank matrix decompositions are vital, and widely used for data analysis, dimensionality reduction, and data ...
N. Benjamin Erichson   +3 more
doaj   +1 more source

Non-negative Matrix Factorization for Dimensionality Reduction [PDF]

open access: yesITM Web of Conferences, 2022
—What matrix factorization methods do is reduce the dimensionality of the data without losing any important information. In this work, we present the Non-negative Matrix Factorization (NMF) method, focusing on its advantages concerning other methods of ...
Olaya Jbari, Otman Chakkor
doaj   +1 more source

An Indictment of Bright Line Tests for Honest Services Mail Fraud [PDF]

open access: yes, 2004
Sparse matrix-matrix multiplication (SpGEMM) is a computational primitive that is widely used in areas ranging from traditional numerical applications to recent big data analysis and machine learning.
Azad, A   +3 more
core   +3 more sources

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