Results 1 to 10 of about 624,674 (321)
The embedding problem for markov models of nucleotide substitution. [PDF]
PLoS ONE, 2013 Continuous-time Markov processes are often used to model the complex natural phenomenon of sequence evolution. To make the process of sequence evolution tractable, simplifying assumptions are often made about the sequence properties and the underlying ...
Klara L Verbyla +4 more
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Connes' embedding problem and Tsirelson's problem [PDF]
Journal of Mathematical Physics, 2010 We show that Tsirelson's problem concerning the set of quantum correlations and Connes' embedding problem on finite approximations in von Neumann algebras (known to be equivalent to Kirchberg's QWEP conjecture) are essentially equivalent.
Bożejko M. +16 more
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On monotone Markov chains and properties of monotone matrix roots
Special Matrices, 2022 Monotone matrices are stochastic matrices that satisfy the monotonicity conditions as introduced by Daley in 1968. Monotone Markov chains are useful in modeling phenomena in several areas.
Guerry Marie-Anne
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PME: pruning-based multi-size embedding for recommender systems
Frontiers in Big Data, 2023 Embedding is widely used in recommendation models to learn feature representations. However, the traditional embedding technique that assigns a fixed size to all categorical features may be suboptimal due to the following reasons.
Zirui Liu +5 more
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Plethysm and a character embedding problem of Miller
Comptes Rendus. Mathématique, 2022 We use a plethystic formula of Littlewood to answer a question of Miller on embeddings of symmetric group characters. We also reprove a result of Miller on character congruences.
Rhoades, Brendon
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On Optimal Embeddings in 3-Ary n-Cubes
Mathematics, 2023 The efficiency of a graph embedding problem when simulating one interconnection network in another interconnection network is characterized by the influential parameter of wirelength.
S. Rajeshwari, M. Rajesh
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Towards Efficient and Delay-Aware NFV-Enabled Unicasting With Adjustable Service Function Chains
IEEE Open Journal of the Computer Society, 2022 Network Function Virtualization (NFV) has becoming an emerging technology for ensuring the reliability, security and scalability of data flows. The Virtual Network Function (VNF) embedding problem, which tries to minimize the embedding cost and link ...
Longqu Li +6 more
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GCMD: Genetic Correlation Multi-Domain Virtual Network Embedding Algorithm
IEEE Access, 2021 With the increase of network scale and the complexity of network structure, the problems of traditional Internet have emerged. At the same time, the appearance of network function virtualization (NFV) and network virtualization technologies has largely ...
Peiying Zhang +5 more
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Method of Attributed Heterogeneous Network Embedding with Multiple Features [PDF]
Jisuanji kexue, 2022 Network embedding aims to represent nodes in unstructured network with low-dimensional,real-valued vectors,so that node embedding can retain the structural and attribute features of the original network as much as possible.However,current research mainly
TANG Qi-you, ZHANG Feng-li, WANG Rui-jin, WANG Xue-ting, ZHOU Zhi-yuan, HAN Ying-jun
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Choosing Markovian Credit Migration Matrices by Nonlinear Optimization
Risks, 2016 Transition matrices, containing credit risk information in the form of ratings based on discrete observations, are published annually by rating agencies.
Maximilian Hughes, Ralf Werner
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