Search Results for author: Ostap Okhrin

Found 15 papers, 5 papers with code

Towards Autonomous Driving with Small-Scale Cars: A Survey of Recent Development

no code implementations9 Apr 2024 Dianzhao Li, Paul Auerbach, Ostap Okhrin

While engaging with the unfolding revolution in autonomous driving, a challenge presents itself, how can we effectively raise awareness within society about this transformative trend?

Autonomous Driving TAG

Self-organized arrival system for urban air mobility

no code implementations4 Apr 2024 Martin Waltz, Ostap Okhrin, Michael Schultz

Urban air mobility is an innovative mode of transportation in which electric vertical takeoff and landing (eVTOL) vehicles operate between nodes called vertiports.

reinforcement-learning

Two-step dynamic obstacle avoidance

no code implementations28 Nov 2023 Fabian Hart, Martin Waltz, Ostap Okhrin

Dynamic obstacle avoidance (DOA) is a fundamental challenge for any autonomous vehicle, independent of whether it operates in sea, air, or land.

Navigate Reinforcement Learning (RL)

2-Level Reinforcement Learning for Ships on Inland Waterways

1 code implementation25 Jul 2023 Martin Waltz, Niklas Paulig, Ostap Okhrin

This paper proposes a realistic modularized framework for controlling autonomous surface vehicles (ASVs) on inland waterways (IWs) based on deep reinforcement learning (DRL).

reinforcement-learning

Vision-based DRL Autonomous Driving Agent with Sim2Real Transfer

1 code implementation19 May 2023 Dianzhao Li, Ostap Okhrin

To the best of our knowledge, our vision-based car following and lane keeping agent with Sim2Real transfer capability is the first of its kind.

Autonomous Driving

A Platform-Agnostic Deep Reinforcement Learning Framework for Effective Sim2Real Transfer in Autonomous Driving

2 code implementations14 Apr 2023 Dianzhao Li, Ostap Okhrin

Deep Reinforcement Learning (DRL) has shown remarkable success in solving complex tasks across various research fields.

Autonomous Driving

Adaptive local VAR for dynamic economic policy uncertainty spillover

no code implementations6 Feb 2023 Niels Gillmann, Ostap Okhrin

The availability of data on economic uncertainty sparked a lot of interest in models that can timely quantify episodes of international spillovers of uncertainty.

Enhanced method for reinforcement learning based dynamic obstacle avoidance by assessment of collision risk

no code implementations8 Dec 2022 Fabian Hart, Ostap Okhrin

This paper proposes a general training environment where we gain control over the difficulty of the obstacle avoidance task by using short training episodes and assessing the difficulty by two metrics: The number of obstacles and a collision risk metric.

Reinforcement Learning (RL)

Spatial-temporal recurrent reinforcement learning for autonomous ships

1 code implementation2 Nov 2022 Martin Waltz, Ostap Okhrin

This paper proposes a spatial-temporal recurrent neural network architecture for deep $Q$-networks that can be used to steer an autonomous ship.

reinforcement-learning Reinforcement Learning (RL)

Vessel-following model for inland waterways based on deep reinforcement learning

no code implementations7 Jul 2022 Fabian Hart, Ostap Okhrin, Martin Treiber

While deep reinforcement learning (RL) has been increasingly applied in designing car-following models in the last years, this study aims at investigating the feasibility of RL-based vehicle-following for complex vehicle dynamics and strong environmental disturbances.

reinforcement-learning Reinforcement Learning (RL)

Vulnerability-CoVaR: Investigating the Crypto-market

no code implementations21 Mar 2022 Martin Waltz, Abhay Kumar Singh, Ostap Okhrin

This paper proposes an important extension to Conditional Value-at-Risk (CoVaR), the popular systemic risk measure, and investigates its properties on the cryptocurrency market.

Addressing Maximization Bias in Reinforcement Learning with Two-Sample Testing

1 code implementation20 Jan 2022 Martin Waltz, Ostap Okhrin

Value-based reinforcement-learning algorithms have shown strong results in games, robotics, and other real-world applications.

Q-Learning reinforcement-learning +3

Modified DDPG car-following model with a real-world human driving experience with CARLA simulator

no code implementations29 Dec 2021 Dianzhao Li, Ostap Okhrin

In the autonomous driving field, fusion of human knowledge into Deep Reinforcement Learning (DRL) is often based on the human demonstration recorded in a simulated environment.

Autonomous Driving Reinforcement Learning (RL)

Missing Velocity in Dynamic Obstacle Avoidance based on Deep Reinforcement Learning

no code implementations23 Dec 2021 Fabian Hart, Martin Waltz, Ostap Okhrin

Filling a gap in the current literature, we thoroughly investigate the effect of missing velocity information on an agent's performance in obstacle avoidance tasks.

reinforcement-learning Reinforcement Learning (RL)

Formulation and validation of a car-following model based on deep reinforcement learning

no code implementations29 Sep 2021 Fabian Hart, Ostap Okhrin, Martin Treiber

For various parameterizations of the reward functions, and for a wide variety of artificial and real leader data, the model turned out to be unconditionally string stable, comfortable, and crash-free.

reinforcement-learning Reinforcement Learning (RL)

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