activity
20242026
collaborators

6 papers

cs.LG2026

Scalable Maximum Entropy Reinforcement Learning for Diffusion Policies via Adjoint Matching

Serge Thilges, Onur Celik, Denis Blessing +2

Diffusion policies have recently emerged as a powerful paradigm for representing complex action distributions in reinforcement learning (RL). However, their application to online R…

cs.LG2026

VLA-FAIL: Efficient Task Failure Detection for Finetuned Vision-Language-Action Models

Florian Seligmann, Emiliyan Gospodinov, Enes Ulas Dincer +1

Vision-language-action models (VLAs) achieve state-of-the-art performance on many robotic manipulation tasks, yet they can still behave unpredictably in out-of-distribution scenari…

cs.LG2026

Fourier Features Let Agents Learn High Precision Policies with Imitation Learning

Balázs Gyenes, Emiliyan Gospodinov, Jan Frieling +5

High-precision robotic manipulation requires fine-grained spatial reasoning that is often difficult to achieve with RGB-only policies due to depth ambiguity and perspective scale i…

cs.LG2026

SEAR: Sample Efficient Action Chunking Reinforcement Learning

C. F. Maximilian Nagy, Onur Celik, Emiliyan Gospodinov +4

Action chunking improves exploration and accelerates value propagation in long-horizon reinforcement learning, but naively applying off-policy methods to the temporally extended ac…

cs.RO2025

PointMapPolicy: Structured Point Cloud Processing for Multi-Modal Imitation Learning

Xiaogang Jia, Qian Wang, Anrui Wang +12

Robotic manipulation systems benefit from complementary sensing modalities, where each provides unique environmental information. Point clouds capture detailed geometric structure,…

cs.LG2024

Adaptive World Models: Learning Behaviors by Latent Imagination Under Non-Stationarity

Emiliyan Gospodinov, Vaisakh Shaj, Philipp Becker +2

Developing foundational world models is a key research direction for embodied intelligence, with the ability to adapt to non-stationary environments being a crucial criterion. In t…