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Author

J. Pajarinen

4 papers indexed here

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Preprint Sep 2026

Why Cross-Skeleton Retargeting Is Non-Identifiable: Structural Limits of Generative Motion Models

Cross-skeleton motion generation trains generative models to carry action structure and motion intention from one body to another. Yet a target motion that shows the right action has two explanations that the training data cannot tell apart: the model transferred the source clip, or it recovered a typical motion for th...

Zhi-Yuan Li, Wen-Yan Yang, Pekka Marttinen et al. · 0 citations
Preprint Aug 2026

Momba: Network Modernization Improves Multi-Objective Reinforcement Learning

Recent advances in neural network design are integrated: observation and feature normalization, weight normalization, and modeling of distributional returns with an entropy-regularized MORL algorithm, demonstrating that these changes substantially improve the quality of the produced solution sets without requiring majo...

Adam Štafa, Santeri Heiskanen, Petr Novotný et al. · 0 citations
#machine learning Preprint Mar 2026

Temporal Consistency Improves Generalization in Contextual Offline Meta Reinforcement Learning

This work investigates the impact of temporal consistency in latent space on task representation learning, showing that enforcing multi-step predictions in latent space encourages task representations that are able to capture task-dependent dynamics while preventing representation collapse.

Mohammadreza Nakheai, Aidan Scannell, K. Luck et al. · 0 citations
#artificial intelligence Preprint Sep 2026

SUN: Reaching for Novelty in Reinforcement Learning

This paper proposes SUccessor-to-Novelty (SUN), an indicator derived from successor value functions to identify goals that are both novel and reachable and presents an adaptive goal-selection strategy that leverages these properties, and an accurate yet lightweight pseudocount to avoid the overhead of classic methods.

Wen-Yan Yang, A. Mustafin, Dominik Baumann et al. · 0 citations

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