Results 61 to 70 of about 111,243 (144)

Factorization theorems for strong maps between matroids of arbitrary cardinality

open access: yesOpen Mathematics, 2016
In this paper we present factorization theorems for strong maps between matroids of arbitrary cardinality. Moreover, we present a new way to prove the factorization theorem for strong maps between finite matroids.
Mao Hua
doaj   +1 more source

Multi-View Clustering via Deep Matrix Factorization

open access: yesAAAI Conference on Artificial Intelligence, 2017
Multi-View Clustering (MVC) has garnered more attention recently since many real-world data are comprised of different representations or views. The key is to explore complementary information to benefit the clustering problem.
Handong Zhao, Zhengming Ding, Y. Fu
semanticscholar   +1 more source

The reactance wave diffraction problem by a strip in a scale of Bessel potential spaces [PDF]

open access: yesOpuscula Mathematica, 2006
We consider a boundary-transmission problem for the Helmholtz equation, in a Bessel potential space setting, which arises within the context of wave diffraction theory.
Luís P. Castro, David Natroshvili
doaj  

Smarandache Factors And Reverse Factors

open access: yes, 1998
This document will describe the current status on the search for factors of Smaranda.che consecutive numbers and their reverse. A complete list up to index 200 will be given, with all known factors. Smarandache numbers are the concatenation of the natural numbers from one up to the given index, and reverse Smaranda.che numbers are the concatenation of ...
openaire   +2 more sources

SoRec: social recommendation using probabilistic matrix factorization

open access: yesInternational Conference on Information and Knowledge Management, 2008
Data sparsity, scalability and prediction quality have been recognized as the three most crucial challenges that every collaborative filtering algorithm or recommender system confronts.
Hao Ma   +3 more
semanticscholar   +1 more source

Integer Factorization – Cryptology Meets Number Theory

open access: yesScientific Journal of Gdynia Maritime University, 2019
Integer factorization is one of the oldest mathematical problems. Initially, the interest in factorization was motivated by curiosity about be­haviour of prime numbers, which are the basic building blocks of all other integers.
Josef Pieprzyk
doaj   +1 more source

On a variation of Sands' method

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1986
A subset of a finite additive abelian group G is a Z-set if for all a∈G, na∈G for all n∈Z. The group G is called “Z-good” if in every factorization G=A⊕B, where A and B are Z-sets at least one factor is periodic. Otherwise G is called “Z-bad.”
Evelyn E. Obaid
doaj   +1 more source

3D Imaging of Rapidly Spinning Space Targets Based on a Factorization Method

open access: yesSensors, 2017
Three-dimensional (3D) imaging of space targets can provide crucial information about the target shape and size, which are significant supports for the application of automatic target classification and recognition.
Yanxian Bi   +3 more
doaj   +1 more source

On Twin Edge Colorings of Graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2014
A twin edge k-coloring of a graph G is a proper edge coloring of G with the elements of Zk so that the induced vertex coloring in which the color of a vertex v in G is the sum (in Zk) of the colors of the edges incident with v is a proper vertex coloring.
Andrews Eric   +4 more
doaj   +1 more source

The Wiener–Hopf perspective on embedding formula: reusing solutions of boundary value problems

open access: yesRoyal Society Open Science
Embedding formula allows solutions to be reused within a family of boundary value problems by expressing a family of solutions in terms of a small number of solutions. Such formulas have been previously derived in the context of diffraction by applying a
Andrey I. Korolkov, Anastasia V. Kisil
doaj   +1 more source

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