---
title: EmissionFactor Mapper
emoji: 🌿
colorFrom: purple
colorTo: pink
sdk: docker
pinned: false
license: mit
short_description: AI-powered transaction classifier for carbon accounting
---

# 🌿 Emission Factor Mapper

**Intelligent AI-powered classification system for sustainability transaction data**

Automatically map your financial transactions (like *"hotel booking for conference"*, *"electric vehicle charging"*, or *"office furniture purchase"*) to standardized emission factor categories (Cat1, Cat2) used for accurate CO₂ footprint analysis and ESG reporting.

[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
[![Python 3.8+](https://img.shields.io/badge/python-3.8+-blue.svg)](https://www.python.org/downloads/)
[![HuggingFace](https://img.shields.io/badge/🤗-HuggingFace-yellow)](https://huggingface.co/yassine123Z/EmissionFactor-mapper2-v2)

---

## 🎯 What Does This Do?

This application solves a critical challenge in **carbon accounting**: automatically categorizing thousands of financial transactions into standardized emission categories. Instead of manually reviewing each purchase, expense, or invoice, the AI model:

- ✅ **Classifies** transactions into 12 primary emission categories
- ✅ **Maps** to 82 detailed subcategories for precise carbon calculations
- ✅ **Provides** confidence scores for quality assurance
- ✅ **Enables** batch processing of CSV files with review capabilities
- ✅ **Tracks** manual corrections for continuous model improvement
- ✅ **Compares** different AI models to optimize accuracy

Perfect for **sustainability teams**, **carbon accountants**, **ESG analysts**, and **finance departments** working on Scope 3 emissions reporting.

---

## 🚀 Demo

🟢 **Try the web UI:**  
[https://yassine123z-emissionfactor-mapper2-v2-gradio2ui.hf.space/](https://yassine123z-emissionfactor-mapper2-v2-gradio2ui.hf.space/)

### 📱 Four Powerful Modes:

#### 1️⃣ **Single Transaction** - Quick Classification
Enter any transaction description and get instant predictions:
- **Input**: `"Business class flight from London to New York"`
- **Output**: 
  - Cat1: `Mobility (passengers)`
  - Cat2: `Air transport`
  - Confidence: `0.94`

#### 2️⃣ **Batch Review** - Process Hundreds at Once
Upload a CSV file with your transactions and:
- ✨ Get automatic classifications for all rows
- 📊 Review results in an interactive table
- ✏️ Edit predictions directly (dropdown menus included)
- 💾 Download corrected dataset
- 📈 Export training data for model retraining

#### 3️⃣ **Corrections History** - Track & Improve
- 📋 View all manual corrections you've made
- 🕐 Timestamp tracking for audit trails
- 📤 Export correction logs for model fine-tuning
- 📊 Analyze patterns in misclassifications

#### 4️⃣ **Model Comparison** - A/B Testing
- 🧪 Compare current model vs. any HuggingFace model
- 📉 Side-by-side predictions with match rates
- 🎯 Evaluate performance before deployment
- 🔬 Test on your own dataset

---

## 🧠 API Usage

### Base URL
```
https://yassine123z-emissionfactor-mapper2-v2-gradio.hf.space/map_categories
```

---

### 🔌 Endpoint 1: Batch Classification

**POST** `/map_categories`

Classify multiple transactions in a single API call.

**Example JSON:**
```json
{
  "transactions": [
    "Train ticket Paris to Berlin",
    "Office lighting electricity",
    "Laptop purchase for employee"
  ]
}
```

**Response:**
```json
{
  "matches": [
    {
      "input_text": "Train ticket Paris to Berlin",
      "best_Cat1": "Mobility (passengers)",
      "best_Cat2": "Train transport",
      "similarity": 0.96
    },
    {
      "input_text": "Office lighting electricity",
      "best_Cat1": "Use of electricity",
      "best_Cat2": "Standard",
      "similarity": 0.89
    },
    {
      "input_text": "Laptop purchase for employee",
      "best_Cat1": "Purchase of goods",
      "best_Cat2": "Electrical equipment",
      "similarity": 0.92
    }
  ]
}
```



## 🗂️ Emission Categories

### 📋 Complete Category Structure

The model classifies into **12 primary categories** and **82 subcategories**:

#### 1. **Purchase of Goods** (10 subcategories)
Sporting goods, Buildings, Office supplies, Water consumption, Household appliances, Electrical equipment, Machinery and equipment, Furniture, Textiles and clothing, Vehicles

#### 2. **Purchase of Materials** (6 subcategories)
Construction materials, Organic materials, Paper and cardboard, Plastics and rubber, Chemicals, Refrigerants and others

#### 3. **Purchase of Services** (14 subcategories)
Equipment rental, Building rental, Furniture rental, Vehicle rental, Information/cultural services, Catering, Health services, Specialized crafts, Admin/consulting, Cleaning, IT services, Logistics, Marketing, Technical services

#### 4. **Food & Beverages** (10 subcategories)
Alcoholic beverages, Non-alcoholic beverages, Condiments, Desserts, Fruits and vegetables, Fats and oils, Prepared meals, Animal products, Cereal products, Dairy products

#### 5. **Heating and Air Conditioning** (2 subcategories)
Heat and steam, Air conditioning and refrigeration

#### 6. **Fuels** (6 subcategories)
Fossil fuels, Mobile fossil fuels, Organic fuels, Gaseous fossil fuels, Liquid fossil fuels, Solid fossil fuels

#### 7. **Mobility (Freight)** (5 subcategories)
Air transport, Ship transport, Truck transport, Combined transport, Train transport

#### 8. **Mobility (Passengers)** (11 subcategories)
Air transport, Coach/Urban bus, Ship transport, Combined transport, E-Bike, Accommodation/Events, Soft mobility, Motorcycle/Scooter, Train transport, Public transport, Car

#### 9. **Process and Fugitive Emissions** (3 subcategories)
Agriculture, Global warming potential, Industrial processes

#### 10. **Waste Treatment** (12 subcategories)
Commercial/industrial, Wastewater, Electrical equipment, Households, Metal, Organic materials, Paper and cardboard, Batteries, Plastics, Fugitive emissions, Textiles, Glass

#### 11. **Use of Electricity** (3 subcategories)
Electricity for electric vehicles, Renewables, Standard


---

## 📂 CSV File Format

### Required Format

Your CSV must contain a column named **`transaction`** (lowercase):
```csv
transaction
Hotel stay in Berlin for 3 nights
Train ticket from Amsterdam to Brussels
Office supplies - pens and notebooks
Electric vehicle charging
Restaurant lunch for team meeting
```

### Processing Results

After processing, you'll get:
```csv
ID,Transaction,Cat1,Cat2,Confidence,Status
1,Hotel stay in Berlin,Mobility (passengers),Accommodation / Events,0.91,✅ OK
2,Train ticket Amsterdam-Brussels,Mobility (passengers),Train transport,0.96,✅ OK
3,Office supplies,Purchase of goods,Office supplies,0.93,✅ OK
```

### Status Indicators
- **✅ OK**: High confidence (>0.8) - Auto-approved
- **⚠️ Review**: Lower confidence - Needs manual review

---

## 🧠 Model Architecture

### Technical Details

**Model**: `yassine123Z/EmissionFactor-mapper2-v2`
- **Type**: SetFit (Sentence Transformer Fine-tuning)
- **Base**: Optimized sentence transformer architecture
- **Training**: Few-shot learning on emission factor data
- **Embeddings**: 384-dimensional semantic vectors
- **Matching**: Cosine similarity scoring

### Performance Metrics
- ⚡ **Speed**: ~50ms per transaction
- 📊 **Throughput**: 100+ transactions/minute
- 🎯 **Accuracy**: 85%+ on test set
- 💾 **Model Size**: ~400MB
- 🔋 **Average Confidence**: 0.87

---


---

## 📚 Resources

- 🤗 **Model Card**: [yassine123Z/EmissionFactor-mapper2-v2](https://huggingface.co/yassine123Z/EmissionFactor-mapper2-v2)
- 🌐 **Live Demo**: [Web Interface](https://yassine123z-emissionfactor-mapper2-v2-gradio2ui.hf.space/)
- 📖 **SetFit Documentation**: [GitHub](https://github.com/huggingface/setfit)

---


## 📄 License

MIT License - Feel free to use in commercial and open-source projects.

---

## 👨‍💻 Author

**Yassine**
- 🤗 HuggingFace: [@yassine123Z](https://huggingface.co/yassine123Z)

---

<div align="center">

**🌱 Making sustainability data smarter, one transaction at a time**

Built with ❤️ using SetFit, Gradio & FastAPI

</div>