Παρακολούθηση
Apostolos Chalkis
Apostolos Chalkis
Η διεύθυνση ηλεκτρονικού ταχυδρομείου έχει επαληθευτεί στον τομέα di.uoa.gr - Αρχική σελίδα
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Παρατίθεται από
Παρατίθεται από
Έτος
volesti: Volume approximation and sampling for convex polytopes in R
A Chalkis, V Fisikopoulos
arXiv preprint arXiv:2007.01578, 2020
37*2020
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 109, 101916, 2023
20*2023
A practical algorithm for volume estimation based on billiard trajectories and simulated annealing
A Chalkis, IZ Emiris, V Fisikopoulos
ACM Journal of Experimental Algorithmics 28, 1-34, 2023
15*2023
Geometric algorithms for sampling the flux space of metabolic networks
A Chalkis, V Fisikopoulos, E Tsigaridas, H Zafeiropoulos
arXiv preprint arXiv:2012.05503, 2020
132020
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
10*2022
Truncated log-concave sampling for convex bodies with Reflective Hamiltonian Monte Carlo
A Chalkis, V Fisikopoulos, M Papachristou, E Tsigaridas
ACM Transactions on Mathematical Software 49 (2), 1-25, 2023
72023
Modeling asset allocations and a new portfolio performance score
A Chalkis, E Christoforou, IZ Emiris, T Dalamagas
Digital Finance 3 (3), 333-371, 2021
62021
Randomized geometric tools for anomaly detection in stock markets
C Bachelard, A Chalkis, V Fisikopoulos, E Tsigaridas
International Conference on Artificial Intelligence and Statistics, 9400-9416, 2023
32023
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
32020
On the cross-sectional distribution of portfolio returns
L Calès, A Chalkis, IZ Emiris
EU publications, 2019
22019
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
12022
Efficient Bayesian inference of systemic risk interlinkages
V Arakelian, A Chalkis
Plos One, 2021
12021
Randomized Control in Performance Analysis and Empirical Asset Pricing
C Bachelard, A Chalkis, V Fisikopoulos, E Tsigaridas
arXiv preprint arXiv:2403.00009, 2024
2024
QUBO Dual Bounds via SDP Plane Projection Method
A Chalkis, T Kleinert, B Sofranac
arXiv preprint arXiv:2312.15026, 2023
2023
dingo: a Python package for metabolic flux sampling
A Chalkis, V Fisikopoulos, E Tsigaridas, H Zafeiropoulos
bioRxiv, 2023.06. 18.545486, 2023
2023
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
Efficient geometric random walks for high-dimensional sampling from convex bodies
A Chalkis
Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ). Σχολή Θετικών Επιστημών …, 2021
2021
Modeling of crisis periods in stock markets
A Chalkis, E Christoforou, T Dalamagas, IZ Emiris
Learning and Intelligent Optimization: 15th International Conference, LION …, 2021
2021
Practical Volume Computation of Structured Convex Bodies for Modeling Financial Crises
AG Chalkis
2018
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