Create README.md
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README.md
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---
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license: mit
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datasets:
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- nhull/tripadvisor-split-dataset-v2
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language:
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- en
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pipeline_tag: text-classification
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tags:
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- sentiment-analysis
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- random-forest
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- text-classification
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- hotel-reviews
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- tripadvisor
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- nlp
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---
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# Random Forest Sentiment Analysis Model
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This model is a **Random Forest** classifier trained on the **TripAdvisor sentiment analysis dataset**. It predicts the sentiment of hotel reviews on a 1-5 star scale. The model takes text input (hotel reviews) and outputs a sentiment rating from 1 to 5 stars.
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## Model Details
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- **Model Type**: Random Forest
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- **Task**: Sentiment Analysis
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- **Input**: A hotel review (text)
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- **Output**: Sentiment rating (1-5 stars)
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- **Dataset Used**: TripAdvisor sentiment dataset (balanced labels)
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## Intended Use
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This model is designed to classify hotel reviews based on their sentiment. It assigns a star rating between 1 and 5 to a review, indicating the sentiment expressed in the review.
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## How to Use the Model
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1. **Install the required dependencies**:
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```bash
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pip install joblib
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```
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2. **Download and load the model**:
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You can download the model from Hugging Face and use it to predict sentiment.
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Example code to download and use the model:
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```python
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from huggingface_hub import hf_hub_download
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import joblib
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# Download model from Hugging Face
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model_path = hf_hub_download(repo_id="your-username/random-forest-model", filename="random_forest_model.joblib")
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# Load the model
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model = joblib.load(model_path)
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# Predict sentiment of a review
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def predict_sentiment(review):
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return model.predict([review])[0]
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review = "This hotel was fantastic. The service was great and the room was clean."
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print(f"Predicted sentiment: {predict_sentiment(review)}")
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```
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3. **The model will return a sentiment rating** between 1 and 5 stars, where:
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- 1: Very bad
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- 2: Bad
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- 3: Neutral
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- 4: Good
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- 5: Very good
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## Model Evaluation
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- **Test Accuracy**: 55.28% on the test set.
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- **Classification Report** (Test Set):
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| Label | Precision | Recall | F1-score | Support |
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|-------|-----------|--------|----------|---------|
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| 1.0 | 0.62 | 0.78 | 0.69 | 1600 |
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| 2.0 | 0.48 | 0.38 | 0.42 | 1600 |
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| 3.0 | 0.49 | 0.40 | 0.44 | 1600 |
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| 4.0 | 0.49 | 0.46 | 0.48 | 1600 |
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| 5.0 | 0.63 | 0.74 | 0.68 | 1600 |
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| **Accuracy** | - | - | **0.55** | 8000 |
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| **Macro avg** | 0.54 | 0.55 | 0.54 | 8000 |
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| **Weighted avg** | 0.54 | 0.55 | 0.54 | 8000 |
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- **Cross-validation Scores**:
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* **Random Forest Cross-validation scores**:
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`[0.54983553, 0.55164474, 0.55805921, 0.55657895, 0.54424342]`
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* **Random Forest Mean Cross-validation score**:
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`0.5521`
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## Limitations
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- The model performs well on extreme ratings (1 and 5 stars) but struggles with intermediate ratings (2, 3, and 4 stars).
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- The model was trained on the **TripAdvisor** dataset and may not generalize well to reviews from other sources or domains.
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- The model does not handle aspects like sarcasm or humor well, and shorter reviews may lead to less accurate predictions.
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