Results 41 to 50 of about 3,154,905 (317)

An exponential lower bound for Individualization-Refinement algorithms for Graph Isomorphism

, 2017
The individualization-refinement paradigm provides a strong toolbox for testing isomorphism of two graphs and indeed, the currently fastest implementations of isomorphism solvers all follow this approach.
Babai László, Benchmark, Engineering, McKay Brendan D., Miyazaki Takunari, Propagation Conflict, Zemlyachenko V. N.   +6 more
core   +1 more source

Characterizing the variation of propagation constants in multicore fibre [PDF]

, 2014
We demonstrate a numerical technique that can evaluate the core-to-core variations in propagation constant in multicore fibre. Using a Markov Chain Monte Carlo process, we replicate the interference patterns of light that has coupled between the cores ...
Ashton, Douglas J., Birks, Tim A., Francis-Jones, Robert J. A., Gris-Sanchez, Itandehui, Mosley, Peter J., Stone, James M.   +5 more
core   +2 more sources

Uncertainty propagation or box propagation

Mathematical and Computer Modelling, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Barrio, R., Rodríguez, M., Abad, A., Serrano, S.   +3 more
openaire   +2 more sources

Consensus Propagation

, 2006
We propose consensus propagation, an asynchronous distributed protocol for averaging numbers across a network. We establish convergence, characterize the convergence rate for regular graphs, and demonstrate that the protocol exhibits better scaling ...
Moallemi, Ciamac C., Van Roy, Benjamin
core   +3 more sources

Signal Propagation in Feedforward Neuronal Networks with Unreliable Synapses [PDF]

, 2011
In this paper, we systematically investigate both the synfire propagation and firing rate propagation in feedforward neuronal network coupled in an all-to-all fashion.
A Aertsen, A Kumar, A Kumar, AS Pikovsky, B Katz, B Katz, B Lindner, C Allen, C Li, C Rosenmund, CF Stevens, Chunguang Li, Daqing Guo, DK Smetters, DQ Guo, DR Chialvo, E Nordlie, EO Postma, H Câteau, J Friedrich, J Trommershäuser, J Trommershäuser, JJ Collins, JJ Collins, JJ Collins, K Hamaguchi, K Hamaguchi, KH Boven, M Abeles, M Diesmann, M Diesmann, M Raastad, MCW Rossum van, MO Gewaltig, MS Goldman, MS Goldman, N Masuda, N Masuda, P Dayan, PE Kloeden, PT Vogels, ST Wang, ST Wang, T Branco, T Shinozaki, T Shinozaki, T Tetzlaff, T Tetzlaff, U Hehl, W Maass, Y Aviel   +50 more
core   +1 more source

Physical Model of D-Region Ionosphere and Preliminary Comparison with IRI and Data of MF Radar at Kunming

Atmosphere, 2023
Based on the ion continuity equation solved under chemical equilibrium, a physical model of the D-region ionosphere (60–90 km) is established. The model involves 145 ion chemical reactions and includes 23 kinds of positive ions, 11 kinds of negative ions,
Mengyan Zhu, Tong Xu, Shuji Sun, Chen Zhou, Yanli Hu, Shucan Ge, Na Li, Zhongxin Deng, Yuqiang Zhang, Xiaolei Liu   +9 more
doaj   +1 more source

Machine Learning-Based Estimation of foF2 and MUF(3000)F2 Using GNSS Ionospheric TEC Observations

Remote Sensing
This study developed machine learning models using different algorithms, including support vector machine (SVM), random forest (RF), and backpropagation neural network (BPNN), to estimate the critical frequency of the F2 layer (foF2) and the maximum ...
Yuhang Zhang, Ming Ou, Liang Chen, Yi Hao, Qinglin Zhu, Xiang Dong, Weimin Zhen   +6 more
doaj   +1 more source

Study on the layered dusty plasma structures in the summer polar mesopause [PDF]

Annales Geophysicae, 2010
Traditional hydrodynamic equations are adopted to build a one-dimensional theoretical model to study the effect of gravity wave on layered dusty plasma structures formation and evolution near the polar summer mesospause region associated with polar ...
Hui Li, Jian Wu, Jun Wu, Zheng-Wen Xu, Bin Xu   +4 more
doaj   +1 more source

Propagation of singularities for weak KAM solutions and barrier functions [PDF]

, 2013
This paper studies the structure of the singular set (points of nondifferentiability) of viscosity solutions to Hamilton-Jacobi equations associated with general mechanical systems on the n-torus.
Cannarsa, Piermarco, Cheng, Wei, Zhang, Qi   +2 more
core   +1 more source

Feasibility Study of Microwave Radiometer Neural Network Modeling Method Based on Reanalysis Data

Atmosphere
To address the challenge of microwave radiometer modeling in regions lacking radiosonde data, this study proposes a neural network retrieval method based on high-resolution the Final Reanalysis (FNL) reanalysis data and validates its feasibility.
Xuan Liu, Qinglin Zhu, Xiang Dong, Houcai Chen, Tingting Shu, Wenxin Wang, Bin Xu   +6 more
doaj   +1 more source