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Caihao Cui

Caihao Cui

Knowledge Grounds Action; Learning Nurtures Virtue.

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Conceptual architecture of Google TimesFM: asymmetric patching from continuous waveforms to a Transformer decoder and quantile prediction intervals.

Time Series Foundation Models - Google TimesFM (Part 1): Model, Algorithms, and Engineering Practice

7 November 2026·4857 words·23 mins

A crystalline decision tree forest stretches across the landscape, with an optical Tower of Babel rising against the distant horizon

Should We Build a Foundation Model in a Forest of Trees? A Pragmatic Guide to Time Series Foundation Models

1 November 2026·Updated: 3 November 2026·13629 words·28 mins

$Proof fragments stream rapidly toward the center while researchers inspect, connect, and interpret them on the other side$

If Only AI Understands the Proof: When Machines Take Over Deduction and Code

31 October 2026·3547 words·17 mins

A dark-blue retail network in which two warehouses, several stores, and a central fulfillment node are connected by teal guarded paths, amber probability flows, and violet graph relationships.

Retail Demand Forecasting with Graph Neural Networks: Mathematical Principles, Controlled Experiments, and Production Boundaries

24 October 2026·Updated: 30 October 2026·11549 words·55 mins

An illustration depicting a progression from a simple, isolated decision tree to a dense, interconnected forest of trees, symbolizing the evolution and complexity of ensemble tree models in machine learning.

From a Single Tree to a Forest: Mathematical Principles, Algorithmic Evolution, and Engineering Practices of Tree Models

17 October 2026·18578 words·38 mins