no code implementations • 28 Nov 2023 • David Milec, Viliam Lisý, Christopher Kiekintveld
Attackers in the real world are predominantly human actors, and the protection methods often incorporate opponent models to improve the performance when facing humans.
2 code implementations • 26 May 2023 • Jaromír Janisch, Tomáš Pevný, Viliam Lisý
Current frameworks for training offensive penetration testing agents with deep reinforcement learning struggle to produce agents that perform well in real-world scenarios, due to the reality gap in simulation-based frameworks and the lack of scalability in emulation-based frameworks.
no code implementations • 4 Aug 2022 • Tomáš Pevný, Viliam Lisý, Branislav Bošanský, Petr Somol, Michal Pěchouček
Learning from raw data input, thus limiting the need for feature engineering, is a component of many successful applications of machine learning methods in various domains.
no code implementations • 20 Dec 2021 • Vojtěch Kovařík, David Milec, Michal Šustr, Dominik Seitz, Viliam Lisý
Recent advancements in algorithms for sequential decision-making under imperfect information have shown remarkable success in large games such as limit- and no-limit poker.
no code implementations • 30 Sep 2020 • David Milec, Jakub Černý, Viliam Lisý, Bo An
This paper aims to analyze and propose scalable algorithms for computing effective and robust strategies against a quantal opponent in normal-form and extensive-form games.
1 code implementation • 25 Sep 2020 • Jaromír Janisch, Tomáš Pevný, Viliam Lisý
We focus on reinforcement learning (RL) in relational problems that are naturally defined in terms of objects, their relations, and object-centric actions.
1 code implementation • 20 Nov 2019 • Jaromír Janisch, Tomáš Pevný, Viliam Lisý
In this work, we extend an existing deep reinforcement learning-based algorithm with hierarchical deep sets and hierarchical softmax, so that it can directly process this data.
2 code implementations • 5 Sep 2019 • Jaromír Janisch, Tomáš Pevný, Viliam Lisý
This work focuses on a specific classification problem, where the information about a sample is not readily available, but has to be acquired for a cost, and there is a per-sample budget.
no code implementations • 26 Jun 2019 • Vojtěch Kovařík, Martin Schmid, Neil Burch, Michael Bowling, Viliam Lisý
A second issue is that while EFGs have recently seen significant algorithmic progress, their classical formalization is unsuitable for efficient presentation of the underlying ideas, such as those around decomposition.
no code implementations • 31 May 2019 • Vojtěch Kovařík, Dominik Seitz, Viliam Lisý, Jan Rudolf, Shuo Sun, Karel Ha
We provide a formal definition of depth-limited games together with an accessible and rigorous explanation of the underlying concepts, both of which were previously missing in imperfect-information games.
1 code implementation • 20 Nov 2017 • Jaromír Janisch, Tomáš Pevný, Viliam Lisý
We study a classification problem where each feature can be acquired for a cost and the goal is to optimize a trade-off between the expected classification error and the feature cost.
1 code implementation • 6 Jan 2017 • Matej Moravčík, Martin Schmid, Neil Burch, Viliam Lisý, Dustin Morrill, Nolan Bard, Trevor Davis, Kevin Waugh, Michael Johanson, Michael Bowling
Poker is the quintessential game of imperfect information, and a longstanding challenge problem in artificial intelligence.