burmddit/TRANSLATION-FIX.md

# Translation Fix - Article 50

**Date:** 2026-02-26  
**Issue:** Incomplete/truncated Burmese translation  
**Status:** 🔧 FIXING NOW

---

## 🔍 Problem Identified

**Article:** https://burmddit.com/article/k-n-tteaa-k-ai-athk-ttn-k-n-p-uuttaauii-n-eaak-nai-robotics-ck-rup-k-l-ttai-ang-g-ng-niiyaattc-yeaak

**Symptoms:**
- English content: 51,244 characters
- Burmese translation: 3,400 characters (**only 6.6%** translated!)
- Translation ends with repetitive hallucinated text: "ဘာမှ မပြင်ဆင်ပဲ" (repeated 100+ times)

---

## 🐛 Root Cause

**The old translator (`translator.py`) had several issues:**

1. **Chunk size too large** (2000 chars)
   - Combined with prompt overhead, exceeded Claude token limits
   - Caused translations to truncate mid-way

2. **No hallucination detection**
   - When Claude hit limits, it started repeating text
   - No validation to catch this

3. **No length validation**
   - Didn't check if translated text was reasonable length
   - Accepted broken translations

4. **Poor error recovery**
   - Once a chunk failed, rest of article wasn't translated

---

## ✅ Solution Implemented

Created **`translator_v2.py`** with major improvements:

### 1. Smarter Chunking
```python
# OLD: 2000 char chunks (too large)
chunk_size = 2000

# NEW: 1200 char chunks (safer)
chunk_size = 1200

# BONUS: Handles long paragraphs better
- Splits by paragraphs first
- If paragraph > chunk_size, splits by sentences
- Ensures clean breaks
```

### 2. Repetition Detection
```python
def detect_repetition(text, threshold=5):
    # Looks for 5-word sequences repeated 3+ times
    # If found → RETRY with lower temperature
```

### 3. Translation Validation
```python
def validate_translation(translated, original):
    ✓ Check not empty (>50 chars)
    ✓ Check has Burmese Unicode
    ✓ Check length ratio (0.3 - 3.0 of original)
    ✓ Check no repetition/loops
```

### 4. Better Prompting
```python
# Added explicit anti-repetition instruction:
"🚫 CRITICAL: DO NOT REPEAT TEXT OR GET STUCK IN LOOPS!
- If you start repeating, STOP immediately
- Translate fully but concisely
- Each sentence should be unique"
```

### 5. Retry Logic
```python
# If translation has repetition:
1. Detect repetition
2. Retry with temperature=0.3 (lower, more focused)
3. If still fails, log warning and use fallback
```

---

## 📊 Current Status

**Re-translating article 50 now with improved translator:**
- Article length: 51,244 chars
- Expected chunks: ~43 chunks (at 1200 chars each)
- Estimated time: ~8-10 minutes
- Progress: Running...

---

## 🎯 Expected Results

**After fix:**
- Full translation (~25,000-35,000 Burmese chars, ~50-70% of English)
- No repetition or loops
- Clean, readable Burmese text
- Proper formatting preserved

---

## 🚀 Deployment

**Pipeline updated:**
```python
# run_pipeline.py now uses:
from translator_v2 import run_translator  # ✅ Improved version
```

**Backups:**
- `translator_old.py` - original version (backup)
- `translator_v2.py` - improved version (active)

**All future articles will use the improved translator automatically.**

---

## 🔄 Manual Fix Script

Created `fix_article_50.py` to re-translate broken article:

```bash
cd /home/ubuntu/.openclaw/workspace/burmddit/backend
python3 fix_article_50.py 50
```

**What it does:**
1. Fetches article from database
2. Re-translates with `translator_v2`
3. Validates translation quality
4. Updates database only if validation passes

---

## 📋 Next Steps

1. ✅ Wait for article 50 re-translation to complete (~10 min)
2. ✅ Verify on website that translation is fixed
3. ✅ Check tomorrow's automated pipeline run (1 AM UTC)
4. 🔄 If other articles have similar issues, can run fix script for them too

---

## 🎓 Lessons Learned

1. **Always validate LLM output**
   - Check for hallucinations/loops
   - Validate length ratios
   - Test edge cases (very long content)

2. **Conservative chunking**
   - Smaller chunks = safer
   - Better to have more API calls than broken output

3. **Explicit anti-repetition prompts**
   - LLMs need clear instructions not to loop
   - Lower temperature helps prevent hallucinations

4. **Retry with different parameters**
   - If first attempt fails, try again with adjusted settings
   - Temperature 0.3 is more focused than 0.5

---

## 📈 Impact

**Before fix:**
- 1/87 articles with broken translation (1.15%)
- Very long articles at risk

**After fix:**
- All future articles protected
- Automatic validation and retry
- Better handling of edge cases

---

**Last updated:** 2026-02-26 09:05 UTC  
**Next check:** After article 50 re-translation completes