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Apostolos Chalkis
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Practical volume computation of structured convex bodies, and an application to modeling portfolio dependencies and financial crises
L Calès, A Chalkis, IZ Emiris, V Fisikopoulos
arXiv preprint arXiv:1803.05861, 2018
172018
volesti: Volume approximation and sampling for convex polytopes in R
A Chalkis, V Fisikopoulos
arXiv preprint arXiv:2007.01578, 2020
132020
Practical volume estimation by a new annealing schedule for cooling convex bodies
A Chalkis, IZ Emiris, V Fisikopoulos
arXiv preprint arXiv:1905.05494, 2019
62019
Geometric algorithms for sampling the flux space of metabolic networks
A Chalkis, V Fisikopoulos, E Tsigaridas, H Zafeiropoulos
arXiv preprint arXiv:2012.05503, 2020
42020
Sampling the feasible sets of SDPs and volume approximation
A Chalkis, V Fisikopoulos, P Repouskos, E Tsigaridas
ACM Communications in Computer Algebra 54 (3), 114-118, 2021
22021
Efficient Sampling from Feasible Sets of SDPs and Volume Approximation
A Chalkis, I Emiris, V Fisikopoulos, P Repouskos, E Tsigaridas
arXiv preprint arXiv:2010.03817, 2020
22020
Modeling asset allocations and a new portfolio performance score
A Chalkis, E Christoforou, IZ Emiris, T Dalamagas
Digital Finance 3 (3), 333-371, 2021
12021
Truncated Log-concave Sampling with Reflective Hamiltonian Monte Carlo
A Chalkis, V Fisikopoulos, M Papachristou, E Tsigaridas
arXiv preprint arXiv:2102.13068, 2021
12021
Efficient Bayesian inference of systemic risk interlinkages
V Arakelian, A Chalkis
Plos One, 2021
12021
Practical volume estimation of zonotopes by a new annealing schedule for cooling convex bodies
A Chalkis, IZ Emiris, V Fisikopoulos
International Congress on Mathematical Software, 212-221, 2020
12020
On the cross-sectional distribution of portfolio returns
L Calès, A Chalkis, IZ Emiris
EU publications, 2019
12019
A practical algorithm for volume estimation based on billiard trajectories and simulated annealing
A Chalkis, IZ Emiris, V Fisikopoulos
arXiv preprint arXiv:1905.05494, 2019
12019
Efficient sampling in spectrahedra and volume approximation
A Chalkis, IZ Emiris, V Fisikopoulos, P Repouskos, E Tsigaridas
Linear Algebra and its Applications 648, 205-232, 2022
2022
Practical volume approximation of high-dimensional convex bodies, applied to modeling portfolio dependencies and financial crises
L Calès, A Chalkis, IZ Emiris, V Fisikopoulos
Computational Geometry, 101916, 2022
2022
On the Error of Random Sampling: Uniformly Distributed Random Points on Parametric Curves
A Chalkis, C Katsamaki, J Tonelli-Cueto
Proceedings of the 2022 International Symposium on Symbolic and Algebraic …, 2022
2022
Randomized geometric tools for anomaly detection in stock markets
C Bachelard, A Chalkis, V Fisikopoulos, E Tsigaridas
arXiv preprint arXiv:2205.03852, 2022
2022
On the sampling error for parametric curves
A Chalkis, C Katsamaki, J Tonelli-Cueto
arXiv preprint arXiv:2203.02832, 2022
2022
On the use of data engineering and machine learning in global optimization applications with cutting plane approximations
V Deligianni, A Marousi, A Chalkis, A Kokossis
Computer Aided Chemical Engineering 51, 1297-1302, 2022
2022
Package ‘volesti’
V Fisikopoulos, A Chalkis
2021
Modeling of crisis periods in stock markets
A Chalkis, E Christoforou, T Dalamagas, IZ Emiris
International Conference on Learning and Intelligent Optimization, 55-65, 2021
2021
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