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Jongeun Choi

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#artificial intelligence Preprint Sep 2026

CoHuB: A Simulation Benchmark for Multi-Humanoid Collaboration

This work introduces CoHuB (Collaborative Multi-Humanoid Benchmark), a simulation benchmark for multi-humanoid collaboration under egocentric visual observations and provides a foundation for developing and evaluating multi-humanoid collaboration policies.

Hyunji Park, Jebeom Chae, Minwoo Park et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Collision Snapshot Guided Time-Reversed Safety-Critical Scenario Generation

The generation of safety-critical traffic scenarios is essential for training and evaluating autonomous vehicles. Prior approaches typically perturb the trajectories of existing agents in a traffic scenario using simplified adversarial objectives to induce safety-critical interactions, which can limit the plausibility...

Taehyung Kim, Jongeun Choi · 0 citations
Preprint Aug 2026

To Go Far, Go Together: Diverse Preferences Induce a Curriculum for Reward Optimization

This work argues that, given a sufficiently diverse user population, a curriculum naturally emerges between easy- and hard-to-optimize reward models, and proposes CurriPO, which grows a tree-structured curriculum to accommodate diverse user-specific objectives, covering the population in a single traversal.

Taehyung Kim, Jongeun Choi · 0 citations

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