AI Research Brief

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March 3, 2026

Spectral Conditions Unify μP Scaling, Data Curation Leaks Privacy

  • A single spectral condition unifies μP scaling across width and depth. No more per-architecture, per-optimizer derivations for hyperparameter transfer. Code included.
  • Data curation itself leaks membership information. Anthropic shows that even models trained only on public data expose the composition of the original dataset through the selection process.
  • VLMs give dexterous hands natural language instructions. UniHM uses a unified tokenizer to generalize across hand morphologies, trained only on human-object interaction video. No teleoperation data needed.

Also Notable

  • GRPO Moves From LLM Alignment to 3D Mesh Generation — asynchronous advantage-guided preference optimization replaces offline DPO for artistic quad-mesh generation.
  • Idempotent Experience Replay Mitigates Catastrophic Forgetting — more stable under high-reliability requirements in continual learning.
  • Mamba/SSM Handles Industrial-Scale CAD Sequences — efficiency advantage over Transformers pays off in fine-grained part modeling.
  • Wavelet Transform Detects Semantic Boundaries for Video Frame Selection — preserves narrative structure better than query-relevance-based selection.
  • Cross-Modal Counting Benchmark for MLLMs — unified image-text-audio counting evaluation reveals basic numeracy gaps.
  • Gaussian Splatting Reconstructs Radar-Quality Precipitation Fields From Sparse Weather Stations — a new path for low-cost weather monitoring.
  • Molecular Representation Shifts From Atom-Centric to Bond-Centric — resonance and stereoselectivity are no longer ignored at the bond level.
  • Visual Autoregressive Next-Scale Prediction for Super-Resolution — addresses global consistency in upscaling.

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