Text Classification with Classifier
Use when: User asks to classify text, detect spam, analyze sentiment, detect emotions, or use pre-trained ML models.
Pre-trained Models
Run classifier models to see all available models. Common ones:
| Model | Command | Use Case |
|---|---|---|
sms-spam-filter |
classifier -r sms-spam-filter "text" |
Spam detection |
imdb-sentiment |
classifier -r imdb-sentiment "text" |
Sentiment analysis |
emotion-detection |
classifier -r emotion-detection "text" |
Emotion classification |
Quick Classification
# Classify with a pre-trained model
classifier -r <model-name> "text to classify"
# Example: detect spam
classifier -r sms-spam-filter "You won a free iPhone! Click here now!"
# Example: sentiment analysis
classifier -r imdb-sentiment "This movie was absolutely terrible"
# Example: emotion detection
classifier -r emotion-detection "I am so happy today"
Custom Training
# Train from text
classifier train positive "Great product, love it"
classifier train negative "Terrible quality, waste of money"
# Train from files
classifier train positive reviews/good/*.txt
classifier train negative reviews/bad/*.txt
# Classify after training
classifier "This product exceeded my expectations"
Model Management
# List all available models
classifier models
# Show model details
classifier info <model-name>
# Save trained model
classifier save my-model.json
# Load saved model
classifier load my-model.json
Best Practices
- For quick classification tasks, use pre-trained models first
- For custom domains, train with representative examples from each category
- Use
classifier modelsto discover available pre-trained models - Balance training data across categories for best results