candle-annotator/TALIB_WORKFLOW.md
Marko Djordjevic 847ff67986 feat(ml): add TA-Lib annotation generation and import workflow
Add complete workflow for using TA-Lib to bootstrap training data:

- generate_talib_annotations.py: Python script to run TA-Lib CDL* functions
  and output span annotations in UI-compatible format
- import_talib_annotations.ts: TypeScript script to import generated
  annotations into the UI database with auto-label-type creation
- npm script 'import-annotations' for easy execution
- TALIB_WORKFLOW.md: Comprehensive guide covering the full cycle:
  * Generate patterns with TA-Lib
  * Import into UI
  * Review and edit in browser
  * Export and train model
  * Compare predictions with TA-Lib detections
  * Iterate for improvement

This enables the intended workflow: use TA-Lib for initial annotations,
manually refine them, then train a model that learns from corrections.
2026-02-15 19:18:28 +01:00

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# TA-Lib Annotation Workflow
This guide shows how to use TA-Lib to generate initial pattern annotations, edit them in the UI, and train a model.
## Overview
1. **Generate** - Run TA-Lib CDL* functions to detect patterns automatically
2. **Import** - Import detected patterns into the UI database
3. **Review & Edit** - View, correct, and refine annotations in the web UI
4. **Train** - Export annotations and train your model
5. **Iterate** - Get predictions, compare with TA-Lib, retrain
## Step 1: Generate TA-Lib Annotations
### 1.1 Prepare Your Data
Export candles from your database:
```bash
# From host
docker-compose exec candle-annotator sh -c "sqlite3 /app/data/candles.db -csv -header 'SELECT time, open, high, low, close, volume FROM candles ORDER BY time;'" > OHLCV.csv
# Or copy your existing CSV
cp your_data.csv OHLCV.csv
```
### 1.2 Run Pattern Detection
Enter the ML service container and run the generator:
```bash
# Enter container
docker-compose exec ml-service bash
# Generate annotations (all patterns, perfect matches only)
python generate_talib_annotations.py \
--input data/raw/OHLCV.csv \
--output talib_annotations.json
# Or specify patterns and lower confidence threshold
python generate_talib_annotations.py \
--input data/raw/OHLCV.csv \
--output talib_annotations.json \
--min-confidence 50 \
--patterns CDLENGULFING CDLHAMMER CDLDOJI
# Exit container
exit
```
This creates `talib_annotations.json` with detected patterns.
### 1.3 Review Detection Results
```bash
# Check what was detected
cat services/ml/talib_annotations.json | jq '.annotations | length'
cat services/ml/talib_annotations.json | jq '.annotations[0]'
# See pattern distribution
cat services/ml/talib_annotations.json | jq '[.annotations[].label] | group_by(.) | map({label: .[0], count: length}) | sort_by(.count) | reverse'
```
**Output example:**
```json
{
"start_time": 1700000000,
"end_time": 1700003600,
"label": "Bullish Engulfing",
"confidence": 1.0,
"source": "programmatic",
"notes": "TA-Lib CDLENGULFING detection"
}
```
## Step 2: Import into UI
### 2.1 Copy Annotations File
```bash
# Copy from ML service to project root
docker-compose cp ml-service:/app/talib_annotations.json ./talib_annotations.json
```
### 2.2 Get Your Chart ID
Open http://localhost:3000 and note your chart ID (shown in the chart selector, or check database):
```bash
docker-compose exec candle-annotator sh -c "sqlite3 /app/data/candles.db 'SELECT id, name FROM charts;'"
```
### 2.3 Import Annotations
```bash
# Import into chart 1
npm run import-annotations -- --file talib_annotations.json --chart-id 1
# Or clear existing annotations first
npm run import-annotations -- --file talib_annotations.json --chart-id 1 --clear
```
**Output:**
```
=== TA-Lib Annotation Import ===
Input file: talib_annotations.json
Chart ID: 1
Clear existing: no
Reading annotations file...
Found 147 annotations
Source: talib
Ensuring 12 label types exist...
✓ Bullish Engulfing (existing, id: 1)
+ Bearish Engulfing (created, id: 8, color: #ef4444)
✓ Bullish Hammer (existing, id: 2)
...
Importing 147 annotations for chart 1...
✓ Imported 147 annotations
=== Import Complete ===
```
## Step 3: Review & Edit in UI
### 3.1 Open the Annotator
1. Open http://localhost:3000
2. Select your chart from the dropdown
3. Scroll down to see the span annotations in the sidebar
### 3.2 Review TA-Lib Detections
You'll see all the TA-Lib detected patterns as span annotations:
- Green spans = Bullish patterns
- Red spans = Bearish patterns
- Source labeled as "programmatic"
### 3.3 Edit Annotations
**Correct false positives:**
- Click on a span annotation in the sidebar or chart
- Press Delete/Backspace to remove it
**Add missing patterns:**
- Select a span label type
- Click and drag on the chart to create new annotations
- Your annotations are marked as source "human"
**Adjust boundaries:**
- Delete the annotation
- Recreate it with correct start/end times
**Add new pattern types:**
- Go to "Manage Span Label Types"
- Add custom patterns TA-Lib doesn't detect
- Return to main page and annotate
### 3.4 Best Practices
- **Review all TA-Lib detections** - They're not always perfect
- **Focus on quality over quantity** - Better to have 50 accurate annotations than 200 noisy ones
- **Add context** - TA-Lib only detects classic patterns; add your own insights
- **Diverse examples** - Make sure you have patterns in different market conditions
## Step 4: Export & Train
### 4.1 Export Annotations
```bash
# Export all span annotations (includes both human and TA-Lib)
curl http://localhost:3000/api/span-annotations/export > services/ml/data/annotations/export.json
# Verify export
cat services/ml/data/annotations/export.json | jq '.annotations | length'
```
### 4.2 Prepare OHLCV Data
```bash
# Copy candles to ML service
docker-compose exec candle-annotator sh -c "sqlite3 /app/data/candles.db -csv -header 'SELECT time, open, high, low, close, volume FROM candles ORDER BY time;'" > services/ml/data/raw/OHLCV.csv
```
### 4.3 Train Model
```bash
# Enter ML service
docker-compose exec ml-service bash
# Run full pipeline
python pipeline.py --config config/pipeline.yaml
# Exit
exit
```
### 4.4 Restart Inference
```bash
# Restart to load new model
docker-compose restart ml-service
# Verify model loaded
curl http://localhost:8001/model/info | jq '.model_info'
```
## Step 5: Compare & Iterate
### 5.1 Get Predictions
1. Open http://localhost:3000
2. Scroll to Predictions panel
3. Click "Run on Visible" or "Predict All"
### 5.2 Compare with TA-Lib
Now you can compare:
- **Your edited annotations** (human judgment)
- **TA-Lib raw detections** (programmatic)
- **Model predictions** (trained on your corrections)
The disagreement detection shows where these differ!
### 5.3 Iterate
Use the prediction summary to find:
- **Missed by model** - Patterns you annotated but model missed
- **Missed by human** - Model found patterns you didn't annotate
- **Label mismatch** - Same location, different pattern type
Add more annotations where the model struggles, then retrain.
## Configuration Options
### Pattern Selection
Edit which patterns to detect:
```bash
python generate_talib_annotations.py \
--input data/raw/OHLCV.csv \
--output talib_annotations.json \
--patterns CDLENGULFING CDLHAMMER CDLDOJI CDLMORNINGSTAR CDLEVENINGSTAR
```
Common patterns:
- `CDLENGULFING` - Bullish/Bearish Engulfing
- `CDLHAMMER` - Hammer
- `CDLDOJI` - Doji
- `CDLMORNINGSTAR` / `CDLEVENINGSTAR` - Morning/Evening Star
- `CDLHARAMI` - Harami
- `CDLTHREEWHITESOLDIERS` / `CDLTHREEBLACKCROWS` - Three Soldiers/Crows
See full list: https://ta-lib.org/function.html (search for CDL)
### Confidence Threshold
TA-Lib returns -100/+100 for pattern matches. Lower the threshold to get more detections:
```bash
# Get 50-100% matches (more patterns, potentially noisier)
python generate_talib_annotations.py \
--input data/raw/OHLCV.csv \
--output talib_annotations.json \
--min-confidence 50
```
## Troubleshooting
### "No module named 'talib'"
TA-Lib not installed:
```bash
# Rebuild ml-service with TA-Lib
docker-compose build --no-cache ml-service
docker-compose up -d ml-service
```
### "No patterns detected"
Try:
1. **Lower confidence threshold** - Use `--min-confidence 50`
2. **Check data quality** - Make sure OHLCV has valid data
3. **Try more patterns** - Don't specify `--patterns`, detect all
### Import script fails
Make sure:
1. **File exists** - Check path to JSON file
2. **Chart ID valid** - Run: `docker-compose exec candle-annotator sh -c "sqlite3 /app/data/candles.db 'SELECT id, name FROM charts;'"`
3. **tsx installed** - Run: `npm install`
### Annotations not showing in UI
1. **Refresh page** - Hard refresh (Ctrl+F5)
2. **Check chart ID** - Make sure you selected the correct chart
3. **Check database** - Run: `docker-compose exec candle-annotator sh -c "sqlite3 /app/data/candles.db 'SELECT COUNT(*) FROM span_annotations;'"`
## Tips & Best Practices
### Balancing Human & Programmatic Labels
When training, you can choose merge strategy in `config/pipeline.yaml`:
```yaml
annotation_ingestion:
merge_strategy: "human_priority" # Use human labels where they overlap
# or "programmatic_priority" # Use TA-Lib where they overlap
# or "both" # Keep both as separate features
```
**Recommended**: Start with `human_priority` - trust your corrections over TA-Lib.
### Iterative Improvement
1. **Round 1**: Generate TA-Lib → Review → Train baseline model
2. **Round 2**: Get predictions → Find disagreements → Add corrections → Retrain
3. **Round 3**: Focus on low-confidence predictions → Add more examples → Retrain
4. **Repeat** until model performance meets your needs
### Pattern Coverage
Make sure you have examples of:
- **Bullish patterns** in uptrends
- **Bearish patterns** in downtrends
- **Neutral patterns** in sideways markets
- **False signals** (TA-Lib detected but actually not a tradeable pattern)
This teaches the model context, not just shape recognition.
### Quality Metrics
Track these in MLflow UI (http://localhost:5000):
- **Accuracy** - Overall correctness
- **F1 (macro)** - Average across all pattern types
- **Per-class F1** - Performance for each pattern individually
- **Confusion matrix** - Where the model makes mistakes
Focus on improving F1 for patterns you actually trade.
## Quick Reference
```bash
# Generate TA-Lib annotations
docker-compose exec ml-service python generate_talib_annotations.py \
--input data/raw/OHLCV.csv --output talib_annotations.json
# Copy to host
docker-compose cp ml-service:/app/talib_annotations.json ./
# Import to UI
npm run import-annotations -- --file talib_annotations.json --chart-id 1
# Export after editing
curl http://localhost:3000/api/span-annotations/export > services/ml/data/annotations/export.json
# Train model
docker-compose exec ml-service python pipeline.py --config config/pipeline.yaml
# Restart inference
docker-compose restart ml-service
# View results
open http://localhost:3000
open http://localhost:5000 # MLflow UI
```