Publications

^∗ equal contribution, ^† authors ordered alphabetically

Conference and Journal Papers

2024

1. Equivalence and Similarity Refutation for Probabilistic Programs
   46th ACM SIGPLAN Conference on Programming Language Design and Implementation. PLDI 2024
   Krishnendu Chatterjee, Ehsan Kafshdar Goharshady, Petr Novotný, Đorđe Žikelić^†
   coming soon

2. Quantitative Bounds on Resource Usage of Probabilistic Programs
   To appear in the ACM Conference on Object-Oriented Programming, Systems, Languages, and Applications. OOPSLA 2024
   Krishnendu Chatterjee, Amir Kafshdar Goharshady, Tobias Meggendorfer, Đorđe Žikelić^†
   coming soon

2023

1. Compositional Policy Learning in Stochastic Control Systems with Formal Guarantees
   37th Conference on Neural Information Processing Systems. NeurIPS 2023
   Đorđe Žikelić^∗, Mathias Lechner^∗, Abhinav Verma, Krishnendu Chatterjee, Thomas A. Henzinger
   paper, preprint

2. Reachability Poorman Discrete-Bidding Games
   26th European Conference on Artificial Intelligence. ECAI 2023
   Guy Avni, Tobias Meggendorfer, Suman Sadhukhan, Josef Tkadlec, Đorđe Žikelić^†
   paper, preprint

3. Learning Provably Stabilizing Neural Controllers for Discrete-Time Stochastic Systems
   21st International Symposium on Automated Technology for Verification and Analysis. ATVA 2023
   Matin Ansaripour, Krishnendu Chatterjee, Thomas A. Henzinger, Mathias Lechner, Đorđe Žikelić^†
   paper, preprint

4. MDPs as Distribution Transformers: Affine Invariant Synthesis for Safety Objectives
   35th International Conference on Computer Aided Verification. CAV 2023
   S. Akshay, Krishnendu Chatterjee, Tobias Meggendorfer, Đorđe Žikelić^†
   paper, preprint

5. A Learner-Verifier Framework for Neural Network Controllers and Certificates of Stochastic Systems
   29th International Conference on Tools and Algorithms for the Construction and Analysis of Systems. TACAS 2023
   Krishnendu Chatterjee, Thomas A. Henzinger, Mathias Lechner, Đorđe Žikelić^†
   paper

6. On Lexicographic Proof Rules for Probabilistic Termination
   Formal Aspects of Computing. FAC 2023
   Krishnendu Chatterjee, Ehsan Kafshdar Goharshady, Petr Novotný, Jiří Zárevúcky, Đorđe Žikelić^†
   paper

7. Learning Control Policies for Stochastic Systems with Reach-avoid Guarantees
   37th AAAI Conference on Artificial Intelligence. AAAI 2023
   Đorđe Žikelić^∗, Mathias Lechner^∗, Krishnendu Chatterjee, Thomas A. Henzinger
   paper, preprint

8. Quantization-aware Interval Bound Propagation for Training Certifiably Robust Quantized Neural Networks
   37th AAAI Conference on Artificial Intelligence. AAAI 2023
   Mathias Lechner, Đorđe Žikelić, Krishnendu Chatterjee, Thomas A. Henzinger, Daniela Rus
   paper, preprint

9. Bidding Graph Games with Partially-Observable Budgets
   37th AAAI Conference on Artificial Intelligence. AAAI 2023
   Guy Avni, Ismaël Jecker, Đorđe Žikelić^†
   paper, preprint

2022

1. Algorithms and Hardness Results for Computing Cores of Markov Chains
   42nd IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science. FSTTCS 2022
   Ali Ahmadi, Krishnendu Chatterjee, Amir Kafshdar Goharshady, Tobias Meggendorfer, Roodabeh Safavi, Đorđe Žikelić^†
   paper, preprint

2. Sound and Complete Certificates for Quantitative Termination Analysis of Probabilistic Programs
   34th International Conference on Computer Aided Verification. CAV 2022
   Krishnendu Chatterjee, Amir Kafshdar Goharshady, Tobias Meggendorfer, Đorđe Žikelić^†
   paper, preprint

3. Social Balance on Networks: Local Minima and Best-edge Dynamics
   Physical Review E. PRE 2022
   Krishnendu Chatterjee, Jakub Svoboda, Đorđe Žikelić, Andreas Pavlogiannis and Josef Tkadlec
   paper, preprint

4. Differential Cost Analysis with Simultaneous Potentials and Anti-potentials
   44th ACM SIGPLAN Conference on Programming Language Design and Implementation. PLDI 2022
   Đorđe Žikelić, Bor-Yuh Evan Chang, Pauline Bolignano, Franco Raimondi
   paper, preprint

5. Stability Verification in Stochastic Control Systems via Neural Network Supermartingales
   36th AAAI Conference on Artificial Intelligence. AAAI 2022
   Mathias Lechner^∗, Đorđe Žikelić^∗, Krishnendu Chatterjee, Thomas A. Henzinger
   paper, preprint

2021

1. Infinite Time Horizon Safety of Bayesian Neural Networks
   35th Conference on Neural Information Processing Systems. NeurIPS 2021
   Mathias Lechner^∗, Đorđe Žikelić^∗, Krishnendu Chatterjee, Thomas A. Henzinger
   paper, preprint

2. On Lexicographic Proof Rules for Probabilistic Termination
   24th International Symposium on Formal Methods. FM 2021
   Krishnendu Chatterjee, Ehsan Kafshdar Goharshady, Petr Novotný, Jiří Zárevúcky, Đorđe Žikelić^†
   paper, preprint

3. Proving Non-termination by Program Reversal
   43rd ACM SIGPLAN Conference on Programming Language Design and Implementation. PLDI 2021
   Krishnendu Chatterjee, Ehsan Kafshdar Goharshady, Petr Novotný, Đorđe Žikelić^†
   paper, preprint

4. Scalable Verification of Quantized Neural Networks
   35th AAAI Conference on Artificial Intelligence. AAAI 2021
   Thomas A. Henzinger, Mathias Lechner, Đorđe Žikelić^†
   paper, preprint

5. Bidding Mechanisms in Graph Games
   Journal of Computer and System Sciences 119. JCSS 2021
   Guy Avni, Thomas A. Henzinger, Đorđe Žikelić^†
   paper

6. Infinite-Duration All-Pay Bidding Games
   ACM-SIAM Symposium on Discrete Algorithms. SODA 2021
   Guy Avni, Ismaël Jecker, Đorđe Žikelić^†
   paper, preprint

2019

1. Bidding Mechanisms in Graph Games
   44th International Symposium on Mathematical Foundations of Computer Science. MFCS 2019
   Guy Avni, Thomas A. Henzinger, Đorđe Žikelić^†
   paper, preprint

2017

1. Optimizing Expectation with Guarantees in POMDPs
   31st AAAI Conference on Artificial Intelligence. AAAI 2017
   Krishnendu Chatterjee, Petr Novotný, Guillermo A. Perez, Jean-Francois Raskin, Đorđe Žikelić^†
   paper, preprint

2. Stochastic invariants for probabilistic termination
   44th ACM SIGPLAN Symposium on Principles of Programming Languages. POPL 2017
   Krishnendu Chatterjee, Petr Novotný, Đorđe Žikelić^†
   paper, preprint

2014

1. Theorems about quadrilaterals and conics
   International Journal of Computer Mathematics 91 (7). Int. J. Comp. Math. 2014
   Đorđe Baralić, Branko Grbić, Đorđe Žikelić^†
   paper

Workshop Papers

2022

1. Learning Stabilizing Policies in Stochastic Control Systems
   ICLR 2022 Workshop on Socially Responsible Machine Learning (SRML). SRML@ICLR 2022
   Đorđe Žikelić^∗, Mathias Lechner^∗, Krishnendu Chatterjee, Thomas A. Henzinger
   preprint

PhD Thesis

Automated Verification and Control of Infinite State Stochastic Systems
Institute of Science and Technology Austria (ISTA). 2023
Đorđe Žikelić
thesis