Types of ML
- Supervised Learning: Labeled data training
- Unsupervised Learning: Pattern discovery
- Reinforcement Learning: Reward-based learning
Getting Started with Python
python
from sklearn.model_selection import train_test_split
from sklearn.linear_model import LogisticRegression
from sklearn.metrics import accuracy_score
# Load and split data
X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.2)
# Train model
model = LogisticRegression()
model.fit(X_train, y_train)
# Evaluate
predictions = model.predict(X_test)
accuracy = accuracy_score(y_test, predictions)Key Concepts
- 1Features: Input variables
- 2Labels: Output variables
- 3Training: Learning from data
- 4Inference: Making predictions
Tools
- scikit-learn: Classic ML algorithms
- TensorFlow: Deep learning
- PyTorch: Research-focused DL
Start with simple problems and iterate!