Frontier Ledger

The definitive knowledge platform for AI-powered finance

Foundations & Core Concepts

20 articles covering the evolution of AI in financial markets, big data concepts, statistical arbitrage, and fundamental machine learning approaches that form the foundation of modern quantitative finance.

1

The Evolution of AI in Financial Markets: From Rule-Based Systems to Self-Learning Agents

2

What Makes Market Data "Big Data"? Volume, Velocity, Variety, Veracity Explained

3

Combining Statistical Arbitrage with Modern ML: Complement or Cannibal?

4

Supervised vs Unsupervised Learning in Trading—When to Use Which Approach

5

Why Most Backtests Fail: Overfitting, Look-Ahead Bias, and Data Snooping

6

Feature Engineering 101 for Price Series: Lags, Rolls, Differencing & More

7

Ensemble Methods in Finance: Bagging, Boosting, Stacking for Alpha Generation

8

Curse of Dimensionality in Portfolio Models and How to Beat It

9

Crafting Robust Train/Validation/Test Splits for Non-Stationary Time-Series

10

Transfer Learning in Quant Research: Reusing Models Across Asset Classes

11

The Role of Bayesian Thinking in Modern Algorithmic Trading

12

Risk-Adjusted Performance Metrics Beyond Sharpe and Sortino

13

Understanding Market Regimes with Clustering Techniques

14

Combining Fundamental and Technical Signals in Hybrid ML Frameworks

15

Building an End-to-End Quant Research Pipeline in Python

16

Why Data Drift Matters More Than Concept Drift in Finance

17

Stationarity Testing: KPSS vs ADF vs Phillips–Perron in Practice

18

Hierarchical Time-Series Modeling for Multi-Asset Forecasts

19

The Bias-Variance Trade-Off Visualized with Real Market Data

20

Continual Learning: Updating Models Without Re-training From Scratch