The ML Blog
Deep dives and interview guides to help you ace your next role.
Machine Learning
Understanding Kronos: How a Foundation Model Reads the Language of Financial Markets
Generic Time Series Foundation Models fail on financial data. Kronos fixes this by treating K-line data as a discrete language. A stage-by-stage breakdown of its architecture, from BSQ tokenization to detokenization.
Jun 5, 202612 min read
Machine Learning
The Brutal Truth About ML Trading: Why Your XGBoost Model Keeps Failing (And What Actually Works)
We built the "perfect" XGBoost trading model — walk-forward validation, 26 features, intraday data. Result: 50.2% accuracy, Sharpe 0.18, 0 trades. Every failure documented, and what the DRW Kaggle 1st place winner did instead.
Jun 5, 202618 min read
Interviews
The Complete ML Interview Guide 2026: Topics, Tips & Mock Tests
A complete machine learning interview guide for 2026 requires mastering system design, fundamental algorithms, and modern deep learning frameworks.
May 25, 20266 min read
LLMs
Trainer vs SFTTrainer: The Complete LLM Training Stack for Financial Services
How Hedge Funds and Quant Teams Navigate 15+ Training Libraries to Build Custom AI Models
May 21, 20267 min read