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Fundamentals

Chinchilla Compute-Optimal Training

Chinchilla is a 2022 DeepMind finding that most large language models were badly undertrained: for a fixed compute budget you should scale parameters…

2 min readRead
Fundamentals

Grouped Reward Normalization in RLHF

Grouped reward normalization standardizes a model's rewards within a batch of responses to the same prompt, turning noisy scores into a stable training…

2 min readRead
Visual AI

Mip-NeRF and Anti-Aliased Radiance Fields

Mip-NeRF fixes the blurry, jagged artifacts that plague the original NeRF when you render scenes at different distances or resolutions.

2 min readRead
Visual AI

Plenoxels and Voxel Radiance Fields

Plenoxels showed that you can reconstruct a 3D scene with NeRF-quality results without any neural network at all — just a grid of voxels storing color…

2 min readRead
Visual AI

DUSt3R Dense 3D Reconstruction

DUSt3R reconstructs dense 3D geometry from a handful of ordinary photos without needing known camera positions or calibration.

2 min readRead
Audio AI

Mean Opinion Score Evaluation

Mean Opinion Score (MOS) is a 1-to-5 average rating from human listeners that measures how good synthesized or transmitted audio sounds.

2 min readRead
Audio AI

Constant-Q Transform for Audio

The Constant-Q Transform (CQT) is a frequency analysis that uses logarithmically spaced bins matched to musical pitch, instead of the evenly spaced bins…

2 min readRead
Audio AI

Filterbank and PLP Features

Filterbank and Perceptual Linear Prediction (PLP) features are ways of summarizing a speech signal into compact, perceptually meaningful numbers that machine…

2 min readRead
Companies

Comma.ai and Openpilot

Comma.ai is a scrappy San Diego startup, founded by iPhone-hacker George Hotz, that turns ordinary cars into semi-autonomous vehicles using a small…

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Companies

Skild AI and Robotics Foundation Models

Learn Skild AI and robotics foundation models: what Skild Brain is, why general-purpose robot models matter, and how the company aims to reuse one policy…

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Companies

Physical Intelligence and pi-zero

Physical Intelligence (often styled with the pi symbol) is a San Francisco startup building general-purpose AI for robots, and pi-zero is its flagship…

2 min readRead
Visual AI

Tune-A-Video One-Shot Editing

Tune-A-Video fine-tunes a pretrained text-to-image diffusion model on a single video so it can re-edit that clip from new text prompts.

2 min readRead

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