Practical Volume Computation of Structured Convex Bodies, and an Application to Modeling Portfolio Dependencies and Financial Crises. - Ludovic Calès; Apostolos Chalkis; Ioannis Z. Emiris; Vissarion Fisikopoulos (SoCG, 2018)

Practical Volume Estimation by a New Annealing Schedule for Cooling Convex Bodies. - Apostolos Chalkis; Ioannis Z. Emiris; Vissarion Fisikopoulos (CoRR, 2019)

Practical Volume Estimation of Zonotopes by a New Annealing Schedule for Cooling Convex Bodies. - Apostolos Chalkis; Ioannis Z. Emiris; Vissarion Fisikopoulos (ICMS, 2020)

Sampling the feasible sets of SDPs and volume approximation. - Apostolos Chalkis; Vissarion Fisikopoulos; Panagiotis Repouskos; Elias P. Tsigaridas (ACM Commun. Comput. Algebra, 2020)

Efficient Sampling from Feasible Sets of SDPs and Volume Approximation. - Apostolos Chalkis; Ioannis Z. Emiris; Vissarion Fisikopoulos; Panagiotis Repouskos; Elias P. Tsigaridas (CoRR, 2020)

Modeling asset allocation strategies and a new portfolio performance score. - Apostolos Chalkis; Ioannis Z. Emiris (CoRR, 2020)

Geometric Algorithms for Sampling the Flux Space of Metabolic Networks. - Apostolos Chalkis; Vissarion Fisikopoulos; Elias P. Tsigaridas; Haris Zafeiropoulos (SoCG, 2021)

Modeling of Crisis Periods in Stock Markets. - Apostolos Chalkis; Emmanouil Christoforou; Theodore Dalamagas 001; Ioannis Z. Emiris (LION, 2021)

Truncated Log-concave Sampling with Reflective Hamiltonian Monte Carlo. - Apostolos Chalkis; Vissarion Fisikopoulos; Marios Papachristou; Elias P. Tsigaridas (CoRR, 2021)

The cross-sectional distribution of portfolio returns and applications. - Ludovic Calès; Apostolos Chalkis; Ioannis Z. Emiris (CoRR, 2021)

volesti: Volume Approximation and Sampling for Convex Polytopes in R. - Apostolos Chalkis; Vissarion Fisikopoulos (R J., 2021)

Efficient geometric random walks for high-dimensional sampling from convex bodies - Apostolos Chalkis (2021)

On the Error of Random Sampling: Uniformly Distributed Random Points on Parametric Curves. - Apostolos Chalkis; Christina Katsamaki; Josué Tonelli-Cueto (ISSAC, 2022)

On the sampling error for parametric curves. - Apostolos Chalkis; Christina Katsamaki; Josué Tonelli-Cueto (CoRR, 2022)

Randomized geometric tools for anomaly detection in stock markets. - Cyril Bachelard; Apostolos Chalkis; Vissarion Fisikopoulos; Elias P. Tsigaridas (AISTATS, 2023)

Practical volume approximation of high-dimensional convex bodies, applied to modeling portfolio dependencies and financial crises. - Ludovic Calès; Apostolos Chalkis; Ioannis Z. Emiris; Vissarion Fisikopoulos (Comput. Geom., 2023)

Geometric algorithms for sampling the flux space of metabolic networks. - Apostolos Chalkis; Ioannis Z. Emiris; Vissarion Fisikopoulos; Elias P. Tsigaridas; Haris Zafeiropoulos (J. Comput. Geom., 2023)

Truncated Log-concave Sampling for Convex Bodies with Reflective Hamiltonian Monte Carlo. - Apostolos Chalkis; Vissarion Fisikopoulos; Marios Papachristou; Elias P. Tsigaridas (ACM Trans. Math. Softw., 2023)

A Practical Algorithm for Volume Estimation based on Billiard Trajectories and Simulated Annealing. - Apostolos Chalkis; Ioannis Z. Emiris; Vissarion Fisikopoulos (ACM J. Exp. Algorithmics, 2023)

Randomized Control in Performance Analysis and Empirical Asset Pricing. - Cyril Bachelard; Apostolos Chalkis; Vissarion Fisikopoulos; Elias P. Tsigaridas (CoRR, 2024)

volesti: A C++ library for sampling and volume computation on convex bodies. - Apostolos Chalkis; Vissarion Fisikopoulos; Marios Papachristou; Elias P. Tsigaridas (J. Open Source Softw., 2025)