Vocal Optimization Conference: Advanced Algorithms
June 10-12, 2026, Mosonmagyaróvár, Hungary

Conference Program

Wednesday, June 10

  Wednesday, June 10
8:00-9:00 Registration
8:45-9:00 Opening
9:00-10:00 Plenary 1
  Terlaky
10:00-11:00 Plenary 2
  Friedler
11:00-11:30 Coffee Break
11:30-13:00 Parallel 1A
Parallel 1B
Parallel 1C
  Interior-Point Algorithms Castro
Lesaja
Varga
Stochastic Programming in Memory of Tamas Szántai  Gerencsér
Wiederschitz
Csizmás
QUBOs and Quantum Kuzel
Czégel
Márton
13:00-14:00 Lunch
14:00-16:00 Parallel 2A
Parallel 2B
Parallel 2C
  Copositive Optimization Gabl
Zischg
Bomze
Žerovnik
Game Theory Bigi
Kwesi
Borkotokey
Solymosi
Interval Branch & Bound and Scheduling G.-Tóth
Gencsi
Csíkos
Storcz
16:00-16:15 Break
16:15-18:15 Parallel 3A
Parallel 3B
Parallel 3C
  LPs and SDPs in Action Andersen
Miavecz
Hall
De Klerk
Stochastic Optimization in Machine Learning Rožnjik
Wibowo
Vučićević
Krklec Jerinkić
Scheduling, Packing, Covering Krész
Büki
Békési
Balogh
18:30-19:15 Castle Visit
19:30-21:30 Conference Banquette

Thursday, June 11

  Thursday, June 11
8:00-9:00 Registration
 
9:00-10:00 EURO Plenary
  Hall
10:00-11:00 HORS Plenary
  Páles
11:00-11:30 Coffee Break
11:30-13:00 Parallel 4A
Parallel 4B
Parallel 4C  
  Convexity and its Generalizations Gilanyi
Hladík
Kiss
QUBOs and Quantum 2 Naszvadi
Nemkin
Koniorczyk
Stochastic Programming in Memory of Tamas Szántai 2    Papp
Bukszár
Kovács
13:00-14:00 Lunch
14:00-16:00 Parallel 5A
Parallel 5B
Parallel 5C  
  Decision Theory Ábele-Nagy
Ágoston
Lukács
Szádoczki
Neural Networks Csendes
Kisházi
Szász
Bánhelyi
Recent Progress in Convex Optimization Dvurechenskii
Ghaderi
Grapiglia
Nesterov
16:00-16:15 Break
16:15-17:45 HORS Award Ceremony and
Young Researcher Award Lectures
Csercsik
Csáji
16:15-17:45 Parallel 6B  
  Recent Progress in Convex Optimization 2 Kabgani
Zamani
Doikov
17:45-18:30 General Assembly of HORS (MOT Közgyűlés) 18:00-18:45 Smart Garden Visit
18:45-19:30 Smart Garden Visit      

Friday, June 12

  Friday, June 12
8:00-9:00 Registration
 
9:00-10:00 Plenary 3
  Shashaani
 
 
10:00-10:30 Coffee Break
10:30-12:30 Parallel 7A
Parallel 7B
Parallel 7C  
  Routing Dósa
Kovács
Éles
Jánosik
Recent Progress in Convex Optimization 3 Malitsky
Rodomanov
Rahimi
Horvath
P-graph Algorithms Kovács
Sipos
Frits
Orosz
12:30-13:30 Lunch
13:30-15:00 Parallel 8A
Parallel 8B
Parallel 8C  
  Network Optimization Bérczi
Becsó
Bérczi-Kovács
Interior-Point Algorithms 2 Rigó
Darvay
Illés
P-graphs Applications Váradi
Tarczali
Aschenbrenner
15:00-15:15 Break
15:15-16:45
Parallel 9A

 
  Optimization in Agriculture and Food Industry Pimentel
Kalauz
Bertok
   
16:45-17:00 Closing

Wednesday, June 10

8:00-9:00 Registration

8:45-9:00 Opening

9:00-10:00 Plenary Session I

Chair: Tibor Illés

On the 70+ Years of Interior Point Methods

Tamás Terlaky

10:00-11:00 Plenary Session II

Chair: Botond Bertok

Structural Approach to Designing Optimal Complex Processing Systems: P-graph Framework

Ferenc Friedler

11:00-11:30 Coffee Break

11:30-13:00 Parallel Session 1A: Interior-Point Algorithms

Chair: Anita Varga

An interior-point approach for risk-neutral and risk-averse multistage stochastic optimization

Jordi Castro, Laureano F. Escudero, Juan Francisco Monge

Complexity analysis of Interior-Point Methods for P ∗ (κ)-LCPs based on Standard Kernel Functions

Goran Lesaja, Zsolt Darvay, Marianna E.-Nagy, Petra Renáta Rigó, Anita Varga

Dual certificates of primal cone membership

Anita Varga, David Papp

11:30-13:00 Parallel Session 1B: Stochastic Programming in Memory of Tamas Szántai

Chair: Csaba Fabian

A stochastic model for the spread of epidemic via self-exiting point processes

László Gerencsér, Gábor Szederkényi, Simon Oláh, Zsuzsanna Vágó

Parameter Estimation in Population Balance Models with Irregular Feasible Regions

Diana Wiederschitz, Edith Kovács, Botond Szilagyi

Random descent steps in a probability maximization scheme

Edit Csizmás, Rajmund Drenyovszki, Tamas Szantai, Csaba Fabian

11:30-13:00 Parallel Session 1C: QUBOs and Quantum

Chair: Boglárka G.-Tóth

Augmented Lagrangian method for solving the sparsest k-subgraph problem as a QUBO

Roman Kuzel, Mátyás Koniorczyk, Janez Povh

A quantum-classical branch-and-bound algorithm

András Czégel, Boglárka G.-Tóth

Efficient computation of the classical bound of Bell correlation and prepare-and-measure witnesses

István Márton

13:00-14:00 Lunch

14:00-16:00 Parallel Session 2A: Copositive Optimization

Chair: Immanuel Bomze

Completely positive reformulations for sparse quadratic optimization

Markus Gabl, Bo Peng, Immanuel Bomze

Copositive approach to adjustable robust optimization with inexact decision rules

Johannes Zischg, Markus Gabl

Copositivity-informed relaxations of rigorous sparsity control in StQPs applied to microfinance

Immanuel Bomze, Paula Amaral, Bo Peng

Bounds and exact values of some domination parameters on cylindrical graphs

Janez Žerovnik

14:00-16:00 Parallel Session 2B: Game Theory

Chair: Tamás Solymosi

Computing the least core for energy community games

Giancarlo Bigi

Connecting Europe Through Hydrogen: Cost Allocation Analysis of Cross-Border Pipeline Coalition under Varying Subsidy Policies

Arthur Emmanuel Kwesi, Tamás Solymosi

Cooperative games with a-priori links

Surajit Borkotokey, Parishmita Boruah, Sujata Goala, Tamás Solymosi

Coalition formation and cost allocation in subsidized pipeline developments

Tamás Solymosi, Emmanuel Kwesi Arthur

14:00-16:00 Parallel Session 2C: Interval Branch & Bound and Scheduling

Chair: Tamás Storcz

Advanced geometrical test for optimality conditions in Interval Branch and Bound method

Boglárka G.-Tóth

An advanced Interval Branch and Bound Algorithm in the Julia Programming Language

Mihály Gencsi, Boglárka G.-Tóth

Application of a simple ALB model for the robotic assembly of an electronic devise

Máté Csíkos, Tamás Koltai

A human resource allocation problem considering time periods and uncertainty

Tamás Storcz, Zsolt Ercsey, Nándor Vincze, Zoltán Kovács

16:00-16:15 Break

16:15-18:15 Parallel Session 3A: LPs and SDPs in Action: Performance Analysis, Scalable Computation, and Inventory Optimization

Chair: Georgina Hall

On the integration of LP folding into Mosek

Erling Andersen

A Las-Vegas Pruned Cutting-Plane Method for Highly Constrained Convex Optimization

Balázs Miavecz, Balázs Csáji

From Trees to Treewidth: Inventory Management in Complex Supply Chain Networks through parametrized LPs

Georgina Hall, Andre Calmon, Philippe Blaettchen, Mohit Tawarmalani

SDP analysis of the worst-case convergence for the boosted DCA

Etienne De Klerk, Hadi Abbaszadehpeivasti, Adrien Taylor

16:15-18:15 Parallel Session 3B: Stochastic Optimization in Machine Learning

Chair: Nataša Krklec Jerinkić

Learning-Based Estimation of Traveling Salesman Route Length

Andrea Rožnjik, Karlo Bala, Nebojša Gvozdenović, Dejan Brcanov

Heuristic Approaches for the Mothership–Drone Routing Problem with a Fixed Mothership Route

Astrid Wibowo, Boglárka G.-Tóth, József Békési

Nonmonotone Line Search and Additional Sampling in Penalty Methods for Nonlinear Equality-Constrained Finite Sums

Nemanja Vučićević, Natasa Krejic, Nataša Krklec Jerinkić, Tijana Ostojić

Adaptive heavy-ball-like stochastic gradient methods with reshuffling for unconstrained finite sum problems

Nataša Krklec Jerinkić, Federica Porta, Simone Rebegoldi, Isidora Vuković

16:15-18:15 Parallel Session 3C: Scheduling, Packing, Covering

Chair: János Balogh

Comparison of heuristic solution methods for the Merge Scheduling Problem

Miklós Krész, Daniil Baldouski, Balazs David, Martin Milanic

Improved bounds for deterministic algorithms on semi-online scheduling with decreasing processing times

Nóra Büki, János Balogh, József Békési

Tight Approximation Ratio of Algorithm SDF for UET Coupled Task Scheduling Problem

József Békési, Gyorgy Dosa, Gábor Galambos

Tiling and covering squares with consecutive squares (70 is not enough)

János Balogh, Jiri Sgall, József Békési, Gyorgy Dosa, Lars Magnus Hvattum, Zsolt Tuza

18:30-19:15 Caste Visit

Guided tour to the Mosonmagyaróvár Castle

19:30-21:30 Conference Banquette

Reception at the conference venue.

Thursday, June 11

8:00-9:00 Registration

9:00-10:00 EURO Plenary

Chair: Etienne De Klerk

Enforcing shape constraints using sum of squares polynomials

Georgina Hall

10:00-11:00 HORS Plenary

Chair: Giancarlo Bigi

Separation theorem for nonlinear inverse images of convex sets

Zsolt Páles

11:00-11:30 Coffee Break

11:30-13:00 Parallel Session 4A: Convexity and its Generalizations

Chair: Tibor Kiss

Bernstein–Doetsch-type theorems for generalized convex functions

Attila Gilanyi, Zsolt Pales

From efficiency to stability: A new robustness measure for multiobjective LP

Milan Hladík

Directional t-convexity in ordered normed spaces

Tibor Kiss

11:30-13:00 Parallel Session 4B: QUBOs and Quantum 2

Chair: Mátyás Koniorczyk

Mixed Hamming-packings for benchmarking QUBO solvers

Péter Naszvadi, Mátyás Koniorczyk, Marcell Tukora

QUBO formulations for minimizing breaks in sports timetabling

Viktória Nemkin, Levente Gegő

QUBO-solving heuristics based on physics: the perspective of simulated bifurcation

Mátyás Koniorczyk

11:30-13:00 Parallel Session 4C: Stochastic Programming in Memory of Tamas Szántai 2

Chair: Edith Kovács

Learning continuous Generalized Naïve Bayes from data

Abraham Papp, Botond Szilagyi, Edith Kovács

Probability Bounds via Hypergraph Structures: A Review of Joint Work with Tamás Szántai

Jozsef Bukszar

The blooming of the Cherry Trees

Edith Kovács

13:00-14:00 Lunch

14:00-16:00 Parallel Session 5A: Decision Theory

Chair: Kolos Ágoston

Geometric characterization of Pareto efficient weight vectors of 4x4 pairwise comparison matrices

Kristóf Ábele-Nagy, Zsombor Szádoczki, Sándor Bozóki

On a Special Property of Eigenvalue-Minimization-Based Completion of Incomplete Pairwise Comparison Matrices

Kolos Ágoston, Laszlo Csato, Sándor Bozóki

Problems regarding the geometry of Pareto efficient weight vectors

Emma Lukács, Kristóf Ábele-Nagy, Sándor Bozóki, Zsombor Szádoczki

The subsets of comparisons of complete pairwise comparison matrices with the same cardinality and the logarithmic least squares method

Zsombor Szádoczki, Sándor Bozóki, Vitaliy Tsyganok

14:00-16:00 Parallel Session 5B: Neural Networks

Chair: Balázs Bánhelyi

Interval Based Verification of Adversarial Example Free Zones for Neural Networks: Dependency Problem Revisited

Tibor Csendes

MORSE: a novel robust multi-objective regression method with genetic algorithm based variable selection

János Gyula Kisházi, Tamás Kegyes, Tibor Dulai

Parameter Robustness Of Neural Networks

Attila Szász, Balázs Bánhelyi

Reliable Parking Trajectory Prediction with Verifiable Neural Networks

Balázs Bánhelyi, Nándor Vincze

14:00-16:00 Parallel Session 5C: Recent Progress in Convex Optimization

Chair: Zoltán Horváth

Semismooth Newton methods with global convergence rates

Pavel Dvurechensky, Amal Alphonse, Ioannis Papadopoulos

Smoothing unadjusted Langevin algorithm for Kurdyka-{\L}ojasiewicz potential functions

Susan Ghaderi, Yves Moreau, Masoud Ahookhosh

Stochastic Three Points Method with an Inexact Oracle and Its Application to Steady-State Optimization

Geovani Grapiglia

Universal Complexity Bounds for Universal Gradient Methods in Nonlinear Optimization

Yurii Nesterov

16:00-16:15 Break

16:15-17:45 HORS Award Ceremony and Young Researcher Award Lectures

Chair: Boglárka G.-Tóth

Preallocation-based Combinatorial Auction for Efficient Fair Channel Assignments in Multi-Connectivity Networks

Dávid Csercsik

A Simple 1.5-Approximation Algorithm for a Wide Range of Maximum-Size Stable Matching Problems

Gergely Csáji

16:15-17:45 Parallel Session 6B: Recent Progress in Convex Optimization 2

Chair: Nikita Doikov

Difference of high-order Moreau envelopes for DC optimization

Alireza Kabgani, Moslem Zamani, Masoud Ahookhosh

On Bregman–Moreau Envelope Reformulations of DC Programs

Moslem Zamani

Gradient-Normalized Smoothness for Optimization with Approximate Hessians

Nikita Doikov

17:45-18:30 General Assembly of HORS (MOT Közgyűlés)

General Assembly of the Hungarian Operations Research Society.

18:00-18:45 Smart Garden visit (Group #1)

Guided tour to the Széchenyi University's medicinal and spice garden.

18:45-19:30 Smart Garden visit (Group #2)

Guided tour to the Széchenyi University's medicinal and spice garden.

Friday, June 12

9:00-10:00 Plenary Session III

Chair: Tamás Terlaky

Stochastic and derivative-free optimization with trust regions

Sara Shashaani

10:00-10:30 Coffee Break

10:30-12:30 Parallel Session 7A: Routing

Chair: Gyorgy Dosa

Emergency rescue scheduling

Gyorgy Dosa, János Balogh, József Békési, Nóra Büki, Lars Magnus Hvattum, Zsolt Tuza, Béla Vizvári

On the robust bilevel toll setting problem

András Kovács, Tamas Kis

Optimization of Municipal Waste Collection Routes

András Éles, Olivér Ősz, Marton Frits, Ákos Orosz

Hypergraph representation of all matroids

Áron Jánosik

10:30-12:30 Parallel Session 7B: Recent Progress in Convex Optimization 3

Chair: Anton Rodomanov

Mirror descent with barriers

Yura Malitsky

Efficient Gradient Methods for Functions with Super-Quadratic Curvature

Anton Rodomanov, Nikita Doikov

Global convergence of scaled Polyak subgradient method for robust phase retrieval

Morteza Rahimi, Masoud Ahookhosh

The General Linear Methods View of Monotone Gradient and Proximal Optimization

Zoltán Horváth

10:30-12:30 Parallel Session 7C: P-graph Algorithms

Chair: Ákos Orosz

Algorithms for Identifying the Crucial Decisions and Generating Strategic N-best Process Structures

Bertalan Kovács, Botond Bertok

Comprehensive model generation and solution method for chemical engineering process design including separation network synthesis and heat integration by P-graphs

Szonja Sipos, Botond Bertok

Exploring Hybrid Quantum–Classical Methods for P-Graph Optimization

Marton Frits

Synthesis of Processing Systems with Various Reliability Requirements

Ákos Orosz, Zoltán Kovács, Ferenc Friedler

12:30-13:30 Lunch

Chair: Erika Bérczi-Kovács

13:30-15:00 Parallel Session 8A: Network Optimization

Fixed-Parameter Tractability for Steiner Rooted Connected Orientations

Kristof Berczi

Pearl: Perfectly 2-resilient Skipping Routing with Few Header Bits via Cut Decomposition

Becsó Gergely

Optimizing Routing Availability Against Localized Disaster Scenarios

Erika Bérczi-Kovács

13:30-15:00 Parallel Session 8B: Interior-Point Algorithms 2

Chair: Zsolt Darvay

Interior-point algorithm based on a universal tangent direction

Petra Renáta Rigó, Marianna E.-Nagy, Tibor Illés, Yurii Nesterov

Interior-point methods using two distinct classes of AET functions

Zsolt Darvay, Petra Renáta Rigó

Parabolic Target-Space Interior-Point Algorithm for Weighted Monotone Linear Complementarity Problem

Tibor Illés

13:30-15:00 Parallel Session 8C: P-graphs Applications

Chair: Marton Frits

A human resource allocation problem as a well solvable, k-wide l-hierarchical PNS problem

Móric Váradi, Zsolt Ercsey, Tamás Storcz, Zoltán Kovács

A P-graph-based Exact Approach for Agile Project Scheduling

Tünde Tarczali, Marton Frits, Zoltan Sule, Zsolt Kosztyán

Optimization of Business Process Decision Sequences and Human Resource Allocation via Process Synthesis

András Aschenbrenner, Léna Kiss, Botond Bertok

15:00-15:15 Break

15:15-16:45 Parallel Session 9A: Optimization in Agriculture and Food Industry

Chair: Botond Bertok

Integrated Optimization of Land Use and Supply Chain Structures for Regional Agricultural Products

Jean Pimentel, Erika Lakatos, Rita Székelyhidi, Károly Kalauz, Botond Bertok

Production Scheduling Optimization in Cheese Manufacturing Using P-graph Methodology

Károly Kalauz, Erika Lakatos, Anikó Vadász, Botond Bertok

Optimal Energy and Water Utilization Scheduling for Agrivoltaic Operations

Botond Bertok, Balázs Ásványi, Károly Kalauz

16:45-17:00 Closing