Results 21 to 30 of about 154,069 (338)
Factorizations of complete graphs into tadpoles
AKCE International Journal of Graphs and Combinatorics, 2020 A tadpole (also a canoe paddle or lollipop) is a graph that arises from a cycle and a path by gluing a terminal vertex of the path to an arbitrary vertex of the cycle.
Michael Kubesa, Tom Raiman
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On Koopman and Perron-Frobenius operators of random dynamical systems
ESAIM: Proceedings and Surveys, 2014 In this paper, we investigate the Koopman and the Perron-Frobenius operators of random dynamical systems in general setting. Moreover, we give some necessary and sufficient conditions for the existence of invariant densities for the ...
Hmissi Mohamed
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Fast Matrix Factorization for Online Recommendation with Implicit Feedback [PDF]
Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, 2016 This paper contributes improvements on both the effectiveness and efficiency of Matrix Factorization (MF) methods for implicit feedback. We highlight two critical issues of existing works.
Xiangnan He +3 more
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Empirical study on the construction of a cognitive model of factorization in eighth-grade students
Frontiers in Psychology, 2023 The construction of cognitive models is the basis for cognitive diagnosis, and the cognitive models will change based on the purpose of the study. According to the purpose of mathematical education, the cognitive factorization model is constructed based ...
Xu Zhangtao +4 more
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Nonconvex Optimization Meets Low-Rank Matrix Factorization: An Overview [PDF]
IEEE Transactions on Signal Processing, 2018 Substantial progress has been made recently on developing provably accurate and efficient algorithms for low-rank matrix factorization via nonconvex optimization.
Yuejie Chi, Yue M. Lu, Yuxin Chen
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Analysis of the RSA-cryptosystem in abstract number rings
Журнал Белорусского государственного университета: Математика, информатика, 2020 Quantum computers can be a real threat to some modern cryptosystems (such as the RSA-cryptosystem). The analogue of the RSA-cryptosystem in abstract number rings is not affected by this threat, as there are currently no factorization algorithms using ...
Nikita V. Kondratyonok
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Factorization method for solving nonlocal boundary value problems in Banach space
Қарағанды университетінің хабаршысы. Математика сериясы, 2021 This article deals with the factorization and solution of nonlocal boundary value problems in a Banach space of the abstract form B1 u = A u - S Φ( u )- G Ψ(A0 u) = f, u ∈ D (B1) , where A, A0 are linear abstract operators, S, G are vectors of functions,
I.N. Parasidis, E. Providas
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Towards Ordinal Data Science [PDF]
Transactions on Graph Data and Knowledge, 2023 Order is one of the main instruments to measure the relationship between objects in (empirical) data. However, compared to methods that use numerical properties of objects, the amount of ordinal methods developed is rather small.
Stumme, Gerd +2 more
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Cycle frames and the Oberwolfach problem
AKCE International Journal of Graphs and Combinatorics, 2019 For an integer denotes a graph with uniform edge-multiplicity Let be a subset of positive integers. A 2-regular subgraph of -partite graph containing vertices of all but one partite set is called partial 2-factor, where denotes wreath product and is an ...
Shanmuga Vadivu Andiyappan +1 more
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Zero product preserving bilinear operators acting in sequence spaces
Karpatsʹkì Matematičnì Publìkacìï, 2020 Consider a couple of sequence spaces and a product function $-$ a canonical bilinear map associated to the pointwise product $-$ acting in it. We analyze the class of "zero product preserving" bilinear operators associated with this product, that are ...
E. Erdoğan
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