Author

Oscar Miró López-Feliu

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Preprint Oct 2026

Testing the Planning Claims of LLM-Based Agents against Formal Semantics

LLM-based agents are increasingly credited with the competences of practical reasoning: planning, monitoring, and correcting their own actions. Their success is attributed to the prompting strategies and agent architectures built around the model, such as chain-of-thought, search-based prompting, self-refinement, refle...

Oriol Miro-Lopez-Feliu, Oscar Miró López-Feliu, Víctor Giménez-Ábalos et al. · 0 citations

#machine learning Preprint Sep 2026

Correcting Within-Group Self-Selection Bias in Prioritized Replay

Sibling-aware replay improves learning efficiency over PER, although matched parameter sweeps show that tuning can narrow some gaps, and decompose PER into between-group allocation and conditional sibling selection, and derive fixed-buffer corrections that preserve current group-level priority mass.

Oscar Miró López-Feliu, H. van Hoof · 0 citations

#machine learning Preprint Sep 2026

From Trait Vectors to Circuits: Tracing Refusal and Sycophancy Through Language Models

This work asks whether steering acts through the computation of the unmodified model or through a different set of components, studying two traits whose directions have been extracted and validated in prior work: refusal and sycophancy in Qwen2.5-7B-Instruct.

Oscar Miró López-Feliu, M. Ozbayoglu · 0 citations