Program

The conference program is available as pdf here (last updated on June 17, 2021; please, reload the webpage to refresh the browser's cache)

The talks will be held virtually on zoom from June 21 to June 25 (June 20 was reserved as an arrival day in case of a physical event was possible)
Full and short papers are alloted 30 and 20 mins, respectively, for presentation, including 5 mins for questions
The conference starts every day at 9 AM EDT / 3 PM Vienna time (UTC+2) / 4 PM Athens time (UTC+3)

Conference Program - HTML version (last updated on June 17, 2021; please, reload the webpage to refresh the browser's cache)

Monday, June 21, 2021 (Timetable is presented in local Vienna time, UTC+2)

Time
15:00 – 15:15 Vienna time 16:00 – 16:15 Athens time (9:00 a.m.-9:15 a.m EDT)	Opening Remarks: · General Chair, Panos Pardalos · Technical Program Committee Chair, Dimitris Simos · Local Organizing Committee Chair, Ilias Kotsireas
15:15 – 16:45 Vienna time	Session 1
	Chairs: TBA
15:15 – 15:45 Vienna time	Hossein Moosaei and Milan Hladik - Inverse Free Universum Twin Support Vector Machine
15:45 – 16:15 Vienna time	Alexander Krylatov and Anastasiya Raevskaya – Travel demand estimation in a multi-subnet urban road network
16:15 – 16:45 Vienna time	Roberto Diaz-Urra, Nicolas Galvez Ramirez and Carlos Castro – Towards complex scenario instances for the urban transit routing problem
16:45 – 17:00 Vienna time	Break
17:00 – 18:00 Vienna time	Invited Session 1 – Chair: Ilias Kotsireas
17:00 – 18:00 Vienna time	Plenary Speaker: Martin Charles Golumbic – B_k-VPG graphs – the string graphs of paths on a grid
18:00 – 19:30 Vienna time	Session 2
	Chairs: TBA
18:00 – 18:30 Vienna time	Julian Schulte and Volker Nissen – Sensitivity analysis on constraints of combinatorial optimization problems
18:30 – 19:00 Vienna time	Carlos Ansotegui, Meinolf Sellmann, Tapan Shah and Kevin Tierney – Learning to optimize black-box functions with extreme limits on the number of function evaluations
19:00 – 19:30 Vienna time	Mustafa Misir – Algorithm selection on adaptive operator selection: a case study on genetic algorithms
19:30 – 19:45 Vienna time	Break
19:45 – 20:25 Vienna time	Session 3
	Chairs: TBA
19:45 – 20:05 Vienna time	Suhendry Effendry, Ngo Bao Chao and Roland Yap – An efficient heuristic for passenger bus VRP with preferences and tradeoffs
20:05 – 20:25 Vienna time	Hamid Jalalzai and David Gaudrie – Pareto optimal thresholds between extreme and central regions

Tuesday, June 22, 2021 (Timetable is presented in local Vienna time, UTC+2)

Time
15:00 – 16:30 Vienna time 16:00 – 17:30 Athens time (9:00 a.m.-10:30 a.m. EDT)	Session 4
	Chair: Paul Spirakis
15:00 – 15:30 Vienna time	Aldy Gunawan, Vincent F. Yu, Andro Nicus Sutanto and Panca Jodiawan – Set Team Orienteering Problem with Time Windows
15:30 – 16:00 Vienna time	Andrei Kudriavtsev, Daniel Khachay, Yuri Ogorodnikov, Jie Ren, Sheng Cheng Shao, Dong Zhang and Michael Khachay – The shortest simple path problem with a fixed number of must-pass nodes: a problem-specific branch-and-bound algorithm
16:00 – 16:30 Vienna time	Brenner Rios, Junior Casquina, Hossmell Añasco and Alfredo Paz-Valderrama – Corrected formulations for the travelling car renter problem
16:30 – 16:45 Vienna time	Break
	Invited Session 2 – Chair: Ilias Kotsireas
16:45 – 17:45 Vienna time	Plenary Speaker: Paul Spirakis – Temporal networks and the impact of availability patterns
17:45 – 19:15 Vienna time	Session 5
	Chairs: TBA
17:45 – 18:15 Vienna time	Nico Piatkowski, Peter N Posch and Miguel Krause – How to trust generative probabilistic models for time-series data?
18:15 – 18:45 Vienna time	Dmytro Pukhkaiev, Oleksandr Husak, Sebastian Götz and Uwe Assmann – Multi-objective parameter tuning with dynamic compositional surrogate models
18:45 – 19:15 Vienna time	Mario Manzo, Maurizio Giordano, Lucia Maddalena and Mario Rosario Guarracino – Performance evaluation of adversarial attacks on whole-graph embedding models
19:15 – 19:30 Vienna time	Break
19:30 – 20:10 Vienna time	Session 6
	Chairs: TBA
19:30 – 19:50 Vienna time	Rhys Agombar, Christian Bauckhage, Max Luebbering and Rafet Sifa – An Optimization for Convolutional Network Layers using the Viola-Jones Framework and Ternary Weight Networks
19:50 – 20:10 Vienna time	Michael Freitas Gustavo and Toon Verstraelen – Reparameterization of Computational Chemistry Force Fields Using GloMPO (Globally Managed Parallel Optimization)

Wednesday, June 23, 2021 (Timetable is presented in local Vienna time, UTC+2)

Time
15:00 – 16:30 Vienna time 16:00 – 17:30 Athens time (9:00 a.m.-10:30 a.m. EDT)	Session 7
	Chairs: TBA
15:00 – 15:30 Vienna time	Roman Plotnikov and Adil Erzin – Multi-channel conflict-free square grid aggregation
15:30 – 16:00 Vienna time	Apostolos Chalkis, Emmanouil Christoforou, Theodore Dalamagas and Ioannis Z. Emiris – Modeling of crisis periods in stock markets
16:00 – 16:30 Vienna time	Jakob Bossek, Aneta Neumann and Frank Neumann – Exact counting and sampling of optima for the knapsack problem
16:30 – 16:45 Vienna time	Break
16:45 – 17:45 Vienna time	Invited Session 3 – Chair: Dimitris Simos
16:45 – 17:45 Vienna time	Tutorial Speaker: Rick Kuhn – Combinatorial Difference Methods in AI
17:45 – 18:45 Vienna time	Session 8
	Chairs: TBA
17:45 – 18:15 Vienna time	Konstantin Avrachenkov, Aurélie Boisbunon and Mikhail Kamalov – Graph diffusion & PCA framework for semi-supervised learning
18:15 – 18:45 Vienna time	Riccardo Di Dio, André Galligo, Angelos Mantzaflaris and Benjamin Mauroy – Spirometry-based airways disease simulation and recognition using machine learning approaches
18:45 – 19:00 Vienna time	Break
19:00 – 19:40 Vienna time	Session 9
	Chairs: TBA
19:00 – 19:20 Vienna time	Shaowen Lan, Wenjuan Fan, Kaining Shao, Shanlin Yang and Panos M. Pardalos – Medical staff scheduling problem in Chinese mobile cabin hospitals during covid-19 outbreak
19:20 – 19:40 Vienna time	Hu Chaoming, Lu Shaojun, Kong Min, Liu Xinbao and Panos. M Pardalos – Joint production and maintenance scheduling considering the increasing operating cost

Thursday, June 24, 2021 (Timetable is presented in local Vienna time, UTC+2)

Time
15:00 – 16:30 Vienna time 16:00 – 17:30 Athens time (9:00 a.m.-10:30 a.m. EDT)	Session 10
	Chairs: TBA
15:00 – 15:30 Vienna time	Antonio Candelieri, Andrea Ponti and Francesco Archetti – Learning the optimal sensor placement by Pareto analysis and problem specific evolutionary operators
15:30 – 16:00 Vienna time	Abtin Nourmohammadzadeh and Stefan Voß – Hybridising self organizing maps with genetic algorithms
16:00 – 16:30 Vienna time	Konstantinos Chatzilygeroudis, Aristidis Vrahatis, Sotiris Tasoulis and Michael Vrahatis– Feature Selection in single-cell RNA-seq data via a Genetic Algorithm
16:30 – 16:45 Vienna time	Break
16:45 – 17:45 Vienna time	Invited Session 4 – Chair: Panos Pardalos
16:45 – 17:45 Vienna time	Plenary Speaker: Evangelos Kranakis – Communication and mobility in optimization for infrastructure resilience
17:45 – 18:45 Vienna time	Session 11
	Chair: Evangelos Kranakis
17:45 – 18:15 Vienna time	Benjamin Sauk and Nick Sahinidis – HybridTuner: Tuning with hybrid derivative-free optimization initialization strategies
18:15 – 18:45 Vienna time	Brenner Rios, Junior Casquina, Hossmell Añasco and Alfredo Paz-Valderrama – Hybrid meta-heuristics for the traveling car renter salesman problem
18:45 – 19:00 Vienna time	Break
19:00 – 19:40 Vienna time	Session 12
	Chairs: TBA
19:00 – 19:20 Vienna time	Elias Dritsas, Nikos Fazakis, Otilia Kocsis, Nikos Fakotakis and Konstantinos Moustakas– Long-term Hypertension Risk Prediction with ML Techniques in ELSA database
19:20 – 19:40 Vienna time	Hanna Kondratiuk and Rafet Sifa – Towards structural hyperparameter search in kernel minimum enclosing balls
19:40 – 20:10 Vienna time	Damir Gainanov, Dmitriy Berenov and Varvara Rasskazova – Algorithm for predicting the quality of the product based on technological pyramids in graphs

Friday, June 25, 2021 (Timetable is presented in local Vienna time, UTC+2)

Time
15:00 – 16:00 Vienna time 16:00 – 17:00 Athens time (9:00 a.m.-10:00 a.m. EDT)	Invited Session 5 – Chair: Dimitris Simos
15:00 – 16:00 Vienna time	Tutorial Speaker: Franz Wotawa – On the use of ontologies for automated test suite generation
16:00 – 17:30 Vienna time	Session 13
	Chairs: TBA
16:00 – 16:30 Vienna time	Jan Koza, Jiří Tumpach, Zbyněk Pitra and Martin Holeňa – Using Past Experience for Configuration of Gaussian Processes in Black-Box Optimization
16:30 – 17:00 Vienna time	Antonio Candelieri and Francesco Archetti– Sparsifying to optimize overmultiple information sources: an augmented Gaussian process based algorithm
17:00 – 17:30 Vienna time	Mustafa Misir – Algorithm Selection for Protein Structure Prediction on 2D AB Off-lattice Model
17:30 – 17:45 Vienna time	Break
17:45 – 18:45 Vienna time	Session 14
	Chairs: TBA
17:45 – 18:15 Vienna time	Damir Gainanov, Dmitriy Berenov, Egor Nikolaev and Varvara Rasskazova – Integer Linear Programming in Solving Optimal Dispatching Problem at the Metallurgical Production
18:15 – 18:45 Vienna time	Antonio Candelieri, Riccardo Perego, Ilaria Giordani, Andrea Ponti and Francesco Archetti – Modelling human active search in optimizing black-box functions
18:45 – 19:00 Vienna time	Break
19:00 – 19:20 Vienna time	Session 15
	Chairs: TBA
19:00 – 19:20 Vienna time	Giovanni Campuzano, Eduardo Lalla-Ruiz and Martijn Mes – A general VNS algorithm for the TSP with drone
19:20 – 19:35 Vienna time	Closing Remarks: · General Chair, Panos Pardalos · Technical Program Committee Chair, Dimitris Simos · Local Organizing Committee Chair, Ilias Kotsireas