Author

Xiangyu Kong

McGill University

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Jul 2026

ThinkBLOX: 3D Indoor Scene Generation with Progressive Reasoning

This work proposes ThinkBLOX, a VLM-based progressive reasoning framework that iteratively designs and refines 3D scenes and introduces Tier-Decoupled GDPO, a reinforcement learning scheme that organizes heterogeneous rewards into distinct tiers, stabilizing policy optimization across physical validity, semantic plausibility, and reasoning-action consistency.

Yuan Xiao, Can Wang, Xiangyu Kong et al. · arXiv.org · 0 citations

Jul 2026

Discrete Diffusion Models: A Unified Framework from Tokenization to Generation

This work introduces a unified conceptual framework that views discrete diffusion models through the construction of the underlying discrete state space, and exposes common design trade-offs across training objectives, inference algorithms, scaling behavior, systems optimization, and evaluation protocols.

Ye Yuan, Wei-En Li, Rui Song et al. · arXiv.org · 0 citations