Search Results for author: Konstantinos Koufos

Found 9 papers, 5 papers with code

SAFE-RL: Saliency-Aware Counterfactual Explainer for Deep Reinforcement Learning Policies

1 code implementation28 Apr 2024 Amir Samadi, Konstantinos Koufos, Kurt Debattista, Mehrdad Dianati

We evaluate the effectiveness of our framework in diverse domains, including ADS, Atari Pong, Pacman and space-invaders games, using traditional performance metrics such as validity, proximity and sparsity.

counterfactual

Run-time Monitoring of 3D Object Detection in Automated Driving Systems Using Early Layer Neural Activation Patterns

no code implementations11 Apr 2024 Hakan Yekta Yatbaz, Mehrdad Dianati, Konstantinos Koufos, Roger Woodman

To address the real-time operation requirements in ADS, we also introduce a novel introspection method that combines activation patterns from multiple layers of the detector's backbone and report its performance.

3D Object Detection Object +1

A Novel Deep Neural Network for Trajectory Prediction in Automated Vehicles Using Velocity Vector Field

1 code implementation19 Sep 2023 Mreza Alipour Sormoli, Amir Samadi, Sajjad Mozaffari, Konstantinos Koufos, Mehrdad Dianati, Roger Woodman

Anticipating the motion of other road users is crucial for automated driving systems (ADS), as it enables safe and informed downstream decision-making and motion planning.

Decision Making Motion Planning +2

SAFE: Saliency-Aware Counterfactual Explanations for DNN-based Automated Driving Systems

no code implementations28 Jul 2023 Amir Samadi, Amir Shirian, Konstantinos Koufos, Kurt Debattista, Mehrdad Dianati

A CF explainer identifies the minimum modifications in the input that would alter the model's output to its complement.

counterfactual

Trajectory Prediction with Observations of Variable-Length for Motion Planning in Highway Merging scenarios

1 code implementation8 Jun 2023 Sajjad Mozaffari, Mreza Alipour Sormoli, Konstantinos Koufos, Graham Lee, Mehrdad Dianati

In addition, we study the impact of the proposed prediction approach on motion planning and control tasks using extensive merging scenarios from the exiD dataset.

Motion Planning Trajectory Prediction

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