Ronald Ortner

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Research activity per year

27 Conference contribution
27 Article
18 Poster
3 Commissioned report
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Quantification of Transfer in Reinforcement Learning via Regret Bounds for Learning Agents
Tuynman, A. & Ortner, R., 11 Mar 2026, (E-pub ahead of print) In: Autonomous Agents and Multi-Agent Systems. 2026, Volume 40, 17 p., 16.
Research output: Contribution to journal › Article › Research › peer-review

Open Access
An identity for the bias in Markov reward processes with applications to Markov chain perturbation and Kemeny’s constant
Ortner, R., 18 Nov 2025, (E-pub ahead of print) In: Statistics & probability letters. 2026, Volume 230, April 2026, 6 p., 110592.
Research output: Contribution to journal › Article › Research › peer-review

Open Access
Machine learning approaches for groundwater temperature prediction in Austria: Impacts of hydro-climatic variability, feature engineering, and model complexity
Sobhani, A., Laimighofer, J., Ortner, R., Hofstätter, H., Steiner, C. & Laaha, G., 2 Dec 2025, (E-pub ahead of print) In: Journal of hydrology : Regional Studies. 2025, Volume 62, December, 21 p., 102987.
Research output: Contribution to journal › Article › Research › peer-review

Open Access
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On cubic vertex-transitive graphs of given girth
Dobson, T., Hujdurovic, A., Imrich, W. & Ortner, R., 19 Aug 2025, In: The Art of Discrete and Applied Mathematics. 8.2025, 1, 16 p.
Research output: Contribution to journal › Article › Research › peer-review

Open Access
Online Regret Bounds for Satisficing in Markov Decision Processes
Hajiabolhassan, H. & Ortner, R., 9 May 2025, In: Mathematics of Operations Research. ??? Stand: 24. März 2026
Research output: Contribution to journal › Article › Research › peer-review

18 Participation in conference
14 Publication peer-review
8 Oral presentation
6 Visiting an external academic institution
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Satisficing in Reinforcement Learning
Ortner, R. (Speaker)
22 Sept 2025
Activity: Talk or presentation › Oral presentation
Exploiting Structure in Undiscounted Reinforcement Learning in Markov Decision Processes
Ortner, R. (Speaker)
17 Jun 2024
Activity: Talk or presentation › Oral presentation
Reinforcement Learning in Markov decision processes
Ortner, R. (Speaker)
9 Sept 2021
Activity: Talk or presentation › Oral presentation
Regret Bounds for Reinforcement Learning via Markov Chain Concentration
Ortner, R. (Speaker)
26 Aug 2021
Activity: Talk or presentation › Oral presentation
Regret Bounds for Reinforcement Learning and other Results of Computational Learning Theory
Ortner, R. (Speaker)
21 Apr 2021
Activity: Talk or presentation › Oral presentation

Ortner Ronald

Collaborations and top research areas from the last five years

Dive into details

Quantification of Transfer in Reinforcement Learning via Regret Bounds for Learning Agents

An identity for the bias in Markov reward processes with applications to Markov chain perturbation and Kemeny’s constant

Machine learning approaches for groundwater temperature prediction in Austria: Impacts of hydro-climatic variability, feature engineering, and model complexity

On cubic vertex-transitive graphs of given girth

Online Regret Bounds for Satisficing in Markov Decision Processes

Satisficing in Reinforcement Learning

Exploiting Structure in Undiscounted Reinforcement Learning in Markov Decision Processes

Reinforcement Learning in Markov decision processes

Regret Bounds for Reinforcement Learning via Markov Chain Concentration

Regret Bounds for Reinforcement Learning and other Results of Computational Learning Theory

Ortner Ronald

Collaborations and top research areas from the last five years

Research output

Activities