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Sacha Morin

5 accepted papers

2026

On the Sample Efficiency of Inverse Dynamics Models for Semi-Supervised Imitation Learning

ICML 2026poster

Semi-supervised imitation learning (SSIL) consists in learning a policy from a small dataset of action-labeled trajectories and a much larger dataset of action-free trajectories. Some SSIL methods learn an inverse dynamics model (IDM) to predict the action from the current state and the next state. …

Cited by 0SourceScholar
2026

PerceptTwin: Semantic Scene Reconstruction for Iterative LLM Planning and Verification

ICRA 2026poster

Simulation environments are useful for both robot policy learning and planning verification and validation. Traditionally, the process of creating a simulation was onerous. Creating a bespoke simulation environment for each individual environment that a robot would operate in was simply infeasible. …

2025

OpenLex3D: A Tiered Benchmark for Open-Vocabulary 3D Scene Representations

NeurIPS 2025poster

3D scene understanding has been transformed by open-vocabulary language models that enable interaction via natural language. However, at present the evaluation of these representations is limited to datasets with closed-set semantics that do not capture the richness of language. This work presents O…

Cited by 0SourcecodeScholar
2024

ConceptGraphs: Open-Vocabulary 3D Scene Graphs for Perception and Planning

ICRA 2024poster

For robots to perform a wide variety of tasks, they require a 3D representation of the world that is semantically rich, yet compact and efficient for task-driven perception and planning. Recent approaches have attempted to leverage features from large vision-language models to encode semantics in 3D…

Cited by 202SourceScholar