Machine Learning45 mins

Model Training Guide

A comprehensive step-by-step guide to training various types of machine learning models across different scenarios

What You'll Learn

Understanding model training fundamentals

Supervised vs. unsupervised training approaches

Handling different data types and distributions

Hyperparameter optimization strategies

Avoiding common training pitfalls

Evaluating model performance

Nim Hewage

Nim Hewage

Co-founder & AI Strategy Consultant

Over 13 years of experience implementing AI solutions across Global Fortune 500 companies and startups. Specializes in enterprise-scale AI transformation, MLOps architecture, and AI governance frameworks.

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Model Training Scenarios

Supervised Learning

Tabular Data Classification

Training classification models on structured tabular data

Training Steps

  • 1Data exploration and understanding class distribution
  • 2Feature selection and engineering for tabular data
  • 3Handling categorical variables and missing values
  • 4Model selection: decision trees, random forests, and gradient boosting
  • 5Cross-validation strategies for robust evaluation
  • 6Hyperparameter tuning with grid search and Bayesian optimization

Recommended Tools

scikit-learnpandasXGBoostLightGBM
Python Code Example
# Example code for training a classification model on tabular data
import pandas as pd
from sklearn.model_selection import train_test_split
from sklearn.ensemble import RandomForestClassifier
from sklearn.metrics import classification_report

# Load data
data = pd.read_csv('customer_data.csv')
X = data.drop('churn', axis=1)
y = data['churn']

# Split data
X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.2, random_state=42)

# Train model
model = RandomForestClassifier(n_estimators=100, max_depth=10)
model.fit(X_train, y_train)

# Evaluate
predictions = model.predict(X_test)
print(classification_report(y_test, predictions))

Best Practices

Always split your data into training, validation, and test sets

Ensure your validation strategy reflects the real-world use case

Start with simple models before moving to complex ones

Monitor for overfitting by comparing training and validation metrics

Use appropriate evaluation metrics for your specific problem

Document your experiments, including hyperparameters and results

Consider model interpretability alongside performance

Check for data leakage that could artificially inflate performance

Continue Your Learning Journey

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