Publications

Publications in reversed chronological order. Generated by jekyll-scholar from BibTeX.

2026

  1. JOSS
    Boost.Geometry: A Generic C++ Geometry Library
    Tinko Sebastian Bartels, Vissarion Fisikopoulos, Barend Gehrels, and 4 more authors
    Journal of Open Source Software, 2026
    DOI Code
  2. EGU
    Developing an Open-Source Toolkit for Precise Orbit Determination and Positioning Using DORIS
    D. Anastasiou, X. Papanikolaou, G. Serelis, and 4 more authors
    In EGU General Assembly 2026, 2026
    DOI

2025

  1. JOSS
    volesti: A C++ Library for Sampling and Volume Computation on Convex Bodies
    Apostolos Chalkis, Vissarion Fisikopoulos, Marios Papachristou, and 1 more author
    Journal of Open Source Software, 2025
    DOI Code

2024

  1. Bioinform. Adv.
    Dingo: a Python Package for Metabolic Flux Sampling
    Apostolos Chalkis, Vissarion Fisikopoulos, Elias Tsigaridas, and 1 more author
    Bioinformatics Advances, 2024
    DOI Code
  2. arXiv
    Randomized Control in Performance Analysis and Empirical Asset Pricing
    Cyril Bachelard, Apostolos Chalkis, Vissarion Fisikopoulos, and 1 more author
    2024
    arXiv

2023

  1. BIT
    Fast Floating-Point Filters for Robust Predicates
    Tinko Bartels, Vissarion Fisikopoulos, and Martin Weiser
    BIT Numerical Mathematics, 2023
    DOI
  2. ACM TOMS
    Truncated Log-Concave Sampling for Convex Bodies with Reflective Hamiltonian Monte Carlo
    Apostolos Chalkis, Vissarion Fisikopoulos, Marios Papachristou, and 1 more author
    ACM Transactions on Mathematical Software, 2023
    DOI Code
  3. ACM JEA
    A Practical Algorithm for Volume Estimation Based on Billiard Trajectories and Simulated Annealing
    Apostolos Chalkis, Ioannis Z. Emiris, and Vissarion Fisikopoulos
    ACM J. Exp. Algorithmics, 2023
    DOI
  4. Comput. Geom.
    Practical Volume Approximation of High-Dimensional Convex Bodies, Applied to Modeling Portfolio Dependencies and Financial Crises
    Ludovic Calès, Apostolos Chalkis, Ioannis Z. Emiris, and 1 more author
    Computational Geometry, 2023
    DOI
  5. AISTATS
    Randomized Geometric Tools for Anomaly Detection in Stock Markets
    C. Bachelard, A. Chalkis, V. Fisikopoulos, and 1 more author
    In Proceedings of the 26th International Conference on Artificial Intelligence and Statistics, 2023

2022

  1. Linear Algebra Appl.
    Efficient Sampling from Feasible Sets of SDPs and Applications to Volume and Optimization
    A. Chalkis, I. Emiris, V. Fisikopoulos, and 2 more authors
    Linear Algebra and Its Applications, 2022
    DOI

2021

  1. R Journal
    volesti: Volume Approximation and Sampling for Convex Polytopes in R
    Apostolos Chalkis and Vissarion Fisikopoulos
    The R Journal, 2021
    DOI Code
  2. ACM CCA
    Sampling the Feasible Sets of SDPs and Volume Approximation
    A. Chalkis, V. Fisikopoulos, P. Repouskos, and 1 more author
    ACM Commun. Comput. Algebra, 2021
    DOI
  3. SoCG
    Geometric Algorithms for Sampling the Flux Space of Metabolic Networks
    A. Chalkis, V. Fisikopoulos, E. Tsigaridas, and 1 more author
    In 37th International Symposium on Computational Geometry (SoCG 2021), 2021
    Code
  4. ISPRS
    Fast, Robust Arithmetics for Geometric Algorithms and Applications to GIS
    T. Bartels and V. Fisikopoulos
    In ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
  5. CMSB
    A New Geometric Algorithm for Sampling the Flux Space of Metabolic Networks
    A. Chalkis, V. Fisikopoulos, E. Tsigaridas, and 1 more author
    In Computational Methods in Systems Biology, 2021
  6. EURO
    A Practical Randomized Method to Solve Semidefinite Programs
    A. Chalkis, V. Fisikopoulos, and E. Tsigaridas
    In 31st European Conference on Operational Research, 2021
  7. ISMB/ECCB
    dingo: a Python Library for Metabolic Networks Sampling and Analysis
    A. Chalkis, V. Fisikopoulos, E. Tsigaridas, and 1 more author
    In Intelligent Systems for Molecular Biology / European Conference on Computational Biology (ISMB/ECCB), 2021

2020

  1. ICMS
    Practical Volume Estimation of Zonotopes by a New Annealing Schedule for Cooling Convex Bodies
    A. Chalkis, I.Z. Emiris, and V. Fisikopoulos
    In Mathematical Software – ICMS 2020, 2020

2019

  1. Math. Program. Comp.
    Enumeration of 2-Level Polytopes
    Y. Faenza, S. Fiorini, V. Fisikopoulos, and 2 more authors
    Mathematical Programming Computation, 2019
    DOI
  2. FOSS4G
    Geodesic Algorithms: an Experimental Study
    V. Fisikopoulos
    In ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
    DOI

2018

  1. ACM TOMS
    Practical Polytope Volume Approximation
    I.Z. Emiris and V. Fisikopoulos
    ACM Transactions on Mathematical Software, 2018
    DOI Code
  2. ISCO
    Polytope Membership in High Dimension
    E. Anagnostopoulos, I.Z. Emiris, and V. Fisikopoulos
    In International Symposium on Combinatorial Optimization, 2018
  3. SoCG
    Practical Volume Computation of Structured Convex Bodies, and an Application to Modeling Portfolio Dependencies and Financial Crises
    L. Calès, A. Chalkis, I.Z. Emiris, and 1 more author
    In 34th International Symposium on Computational Geometry (SoCG 2018), 2018
    DOI

2017

  1. Global Ecol. Biogeogr.
    Biogeographical, Environmental and Anthropogenic Determinants of Global Patterns in Bird Taxonomic and Trait Turnover
    J.Y. Barnagaud, W.D. Kissling, C. Tsirogiannis, and 4 more authors
    Global Ecology and Biogeography, 2017
    DOI
  2. MACIS
    Experimental Study of the Ehrhart Interpolation Polytope
    V. Fisikopoulos and Z. Zafeirakopoulos
    In Mathematical Aspects of Computer and Information Sciences, 2017

2016

  1. Comput. Geom.
    Faster Geometric Algorithms via Dynamic Determinant Computation
    V. Fisikopoulos and L. Peñaranda
    Computational Geometry: Theory and Applications, 2016
    DOI
  2. J. Symb. Comput.
    Efficient Edge-Skeleton Computation for Polytopes Defined by Oracles
    I.Z. Emiris, V. Fisikopoulos, and B. Gärtner
    Journal of Symbolic Computation, 2016
    DOI
  3. ISCO
    Two-Level Polytopes with a Prescribed Facet
    S. Fiorini, V. Fisikopoulos, and M. Macchia
    In International Symposium on Combinatorial Optimization, 2016

2015

  1. ESA
    Enumeration of 2-Level Polytopes
    A. Bohn, Y. Faenza, S. Fiorini, and 3 more authors
    In Algorithms – ESA 2015, 2015
    DOI

2014

  1. SoCG
    Efficient Random Walk Methods for Approximating Polytope Volume
    I.Z. Emiris and V. Fisikopoulos
    In Proc. Symposium of Computational Geometry, 2014

2013

  1. IJCGA
    An Oracle-Based, Output Sensitive Algorithm for Projections of Resultant Polytopes
    I.Z. Emiris, V. Fisikopoulos, C. Konaxis, and 1 more author
    International Journal of Computational Geometry and Applications, 2013
    DOI
  2. ISSAC
    Combinatorics of 4-dimensional Resultant Polytopes
    A. Dickenstein, I.Z. Emiris, and V. Fisikopoulos
    In Proc. International Symposium on Symbolic and Algebraic Computation, 2013
  3. MEGA
    A Software Framework for Computing Newton Polytopes of Resultants and (Reduced) Discriminants
    I.Z. Emiris, V. Fisikopoulos, and C. Konaxis
    In 12th International Conference on Effective Methods in Algebraic Geometry, 2013

2012

  1. SoCG
    An Output-Sensitive Algorithm for Computing Projections of Resultant Polytopes
    I.Z. Emiris, V. Fisikopoulos, C. Konaxis, and 1 more author
    In Proc. Symposium of Computational Geometry, 2012
  2. ESA
    Faster Geometric Algorithms via Dynamic Determinant Computation
    V. Fisikopoulos and L. Peñaranda
    In ESA 2012 – 20th Annual European Symposium, 2012

2011

  1. Tech. Report
    Theoretical Results on Query Processing for RDF/SPARQL with Time and Space
    M. Koubarakis, C. Nikolaou, and V. Fisikopoulos
    2011
    PDF
  2. Tech. Report
    An Implementation of Range Trees with Fractional Cascading in C++
    V. Fisikopoulos
    2011
    arXiv
  3. Tech. Report
    Study of the Effect of Cost Policies in the Convergence of Selfish Strategies in Pure Nash Equilibria in Congestion Games
    V. Fisikopoulos
    2011
    arXiv

2010

  1. ITAB
    In Silico Tomographic Image Generation Using Monte Carlo and Computational Geometry
    K. Eftaxias, V. Fisikopoulos, and G.M. Spyrou
    In Proceedings of 10th IEEE International Conference on Information Technology and Applications in Biomedicine, 2010
  2. Curves & Surfaces
    Meshing of Triply-Periodic Smooth Surfaces in CGAL
    M. Caroli, V. Fisikopoulos, and M. Teillaud
    In Seventh International Conference on Curves and Surfaces, 2010