Sacha Morin

@SachMorin

PhD student at Université de Montréal and @Mila_Quebec. Embodied AI, Robotics, 3D perception. @Apple intern.

Montreal, Canada

sachamorin.github.io

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Sacha Morin
@SachMorin
Jul 7
Action labels for BC are not cheap. Semi-supervised methods use Inverse Dynamics Models (IDMs) to fix this, but why does IDM learning actually outperform BC in this context? Our #ICML2026 paper answers this! 🇰🇷 📜 Paper: arxiv.org/abs/2602.02762 🧵
arxiv.org
On the Sample Efficiency of Inverse Dynamics Models for...
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...
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Sacha Morin
@SachMorin
Dec 3, 2025
At #NeurIPS this week to present two projects! Come say hi if you’d like to chat about spatial AI, 3D perception, or the current state of robotics. Details 👇
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Sacha Morin
@SachMorin
Dec 3, 2025
🤖 Excited to share our recent work: Agentic Scene Policies! General manipulation policy through agentic interactions with a 3D object map. Includes affordances, mobile queries and comparisons with VLAs! 📄 Paper: arxiv.org/abs/2509.19571 🌐 Site: montrealrobotics.ca/agentic-scene-…
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Sacha Morin
@SachMorin
Oct 27, 2025
Happy to share that we'll be presenting OpenLex3D at NeuRIPS in San Diego! TLDR: New 3D segmentation and object retrieval benchmark for open-vocab 3D scene representations. Project page: openlex3d.github.io
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Sacha Morin
@SachMorin
Oct 27, 2025
I am very late to share this but StepMix has been accepted in the Journal of Statistical Software! StepMix is a Python/R package for generalized mixture modeling with support for clustering and classification. Available here: github.com/Labo-Lacourse/….