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Author

Yuji Takubo

3 papers indexed here

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#artificial intelligence Preprint Oct 2026

OrbitTAMP: Grounding Language Models for Task and Motion Planning in Spacecraft Rendezvous

A hierarchical framework for spacecraft task-and-motion planning (TAMP) that grounds LLM reasoning in a graph of reusable behaviors and domain-specific planning modules is presented, establishing a scalable and auditable foundation for language-driven agentic planning of spacecraft RPO.

Yuji Takubo, Daniele Gammelli, Marco Pavone et al. · 1 citation
#artificial intelligence Preprint Sep 2026

Transformer-Informed Trajectory Optimization for Relative Motion in Cislunar Orbits

Autonomous spacecraft guidance and control requires a fast solution to non-convex trajectory optimization, which can be accelerated by providing a near-optimal initial guess to an optimization protocol, i.e., warm-starting. A robust warm starting method is especially useful for rendezvous, proximity operations, and doc...

Walter J. Manuel, Yuji Takubo, Simone D'Amico · 0 citations

Transformer-Based Warm-Starting for Feasible and Optimal Terminal Approach to Tumbling Objects with Space Manipulators

A causal-transformer warm-start for the computationally dominant attitude-manipulator stage of a two-stage sequential convex programming (SCP) framework is developed and demonstrated that learned warm-starts can reduce onboard optimization cost while steering SCP toward basins containing feasible, low-cost solutions.

Yuji Takubo, M. Adang, Mac Schwager et al. · 2 citations

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