PRACTICAL AI & MACHINE LEARNING · DAY 003
NumPy basics for ML in Practical AI & Machine Learning
Expona Admin · Oct 27, 2026 · 7 min read
Tag · 141 articles
#AI
Practical AI articles, guides and code examples from the Expona engineering blog.
PRACTICAL AI & MACHINE LEARNING · DAY 004
pandas for data preparation: what developers should know
Expona Admin · Oct 27, 2026 · 8 min read
PRACTICAL AI & MACHINE LEARNING · DAY 005
Exploratory data analysis checklist: a step-by-step guide
Expona Admin · Oct 27, 2026 · 7 min read
PRACTICAL AI & MACHINE LEARNING · DAY 006
Data visualization for ML: practical tips and trade-offs
Expona Admin · Oct 27, 2026 · 9 min read
PRACTICAL AI & MACHINE LEARNING · DAY 007
Supervised vs unsupervised learning: a step-by-step guide
Expona Admin · Oct 27, 2026 · 7 min read
PRACTICAL AI & MACHINE LEARNING · DAY 008
scikit-learn tutorial: your first model, explained simply
Expona Admin · Oct 27, 2026 · 6 min read
PRACTICAL AI & MACHINE LEARNING · DAY 009
Train, validation and test sets: lessons from production
Expona Admin · Oct 27, 2026 · 6 min read
PRACTICAL AI & MACHINE LEARNING · DAY 010
Cross-validation explained: patterns, pitfalls and fixes
Expona Admin · Oct 27, 2026 · 7 min read
PRACTICAL AI & MACHINE LEARNING · DAY 011
Linear regression explained: what developers should know
Expona Admin · Oct 27, 2026 · 7 min read
PRACTICAL AI & MACHINE LEARNING · DAY 012
Logistic regression for classification, explained simply
Expona Admin · Oct 27, 2026 · 6 min read
PRACTICAL AI & MACHINE LEARNING · DAY 013
Decision trees and random forests for AI & ML developers
Expona Admin · Oct 27, 2026 · 5 min read
PRACTICAL AI & MACHINE LEARNING · DAY 014
Gradient boosting with XGBoost and LightGBM: a deep dive
Expona Admin · Oct 27, 2026 · 7 min read
PRACTICAL AI & MACHINE LEARNING · DAY 015
Precision vs recall explained: a practical AI & ML guide
Expona Admin · Oct 27, 2026 · 7 min read
PRACTICAL AI & MACHINE LEARNING · DAY 016
F1 score, ROC and AUC in Practical AI & Machine Learning
Expona Admin · Oct 27, 2026 · 7 min read
PRACTICAL AI & MACHINE LEARNING · DAY 017
Regression metrics: MAE, RMSE and R² — a practical guide
Expona Admin · Oct 27, 2026 · 9 min read
PRACTICAL AI & MACHINE LEARNING · DAY 018
Overfitting and underfitting: a practical AI & ML guide
Expona Admin · Oct 27, 2026 · 8 min read
PRACTICAL AI & MACHINE LEARNING · DAY 019
Feature engineering that improves models for production
Expona Admin · Oct 27, 2026 · 9 min read
PRACTICAL AI & MACHINE LEARNING · DAY 020
Handling missing values: AI & ML lessons from production
Expona Admin · Oct 27, 2026 · 7 min read
PRACTICAL AI & MACHINE LEARNING · DAY 021
Encoding categorical features: a practical AI & ML guide
Expona Admin · Oct 27, 2026 · 7 min read
PRACTICAL AI & MACHINE LEARNING · DAY 022
Feature scaling: when it matters for AI & ML developers
Expona Admin · Oct 27, 2026 · 8 min read