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license: cc-by-sa-4.0
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license: cc-by-sa-4.0
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---
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# VAD Binomial Regression Models
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This repository contains three binomial regression models designed to predict VAD (Valence, Arousal, Dominance) scores for text inputs.
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Each model is stored as a separate pickle (.pkl) file:
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valence_model.pkl: Predicts the valence score (positivity/negativity).
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arousal_model.pkl: Predicts the arousal score (level of excitement or calm).
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dominance_model.pkl: Predicts the dominance score (sense of control or influence).
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All scores are normalized on a scale from 0 to 1.
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Before making predictions, input text must be converted into embeddings using the [Knesset-multi-e5-large](https://huggingface.co/GiliGold/Knesset-multi-e5-large) model. The embeddings are then fed into the regression models.
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## Training Data
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The models were trained using a combination of datasets to ensure robust and generalizable predictions:
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[Emobank Dataset](https://aclanthology.org/E17-2092/) (by buechel-hahn-2017-emobank): A comprehensive dataset containing emotional text data that we automaticaly translated to Hebrew using [Google/madlad400-3b-mt](https://huggingface.co/google/madlad400-3b-mt).
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[Hebrew VAD Lexicon](https://huggingface.co/datasets/GiliGold/Hebrew_VAD_lexicon): A lexicon that provides VAD scores for Hebrew words.
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[Knesset Sentences](https://huggingface.co/datasets/GiliGold/VAD_KnessetCorpus): A manually annotated set of 120 Knesset sentences with VAD scores, serving as an additional benchmark and source of training data.
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This diverse training data allowed the models to capture nuanced emotional features across different text domains, especially in Hebrew.
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## Model Details
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- Model Type: Binomial Regression
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- Input: Preprocessed text data (the specific feature extraction process should align with the training procedure).
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- Output: VAD scores (valence, arousal, and dominance) on a continuous scale from 0 to 1.
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Each model is provided as a .pkl file and can be loaded using Python's pickle module.
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## Usage Example
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```python
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from sentence_transformers import SentenceTransformer
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import pickle
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model = SentenceTransformer('GiliGold/Knesset-multi-e5-large')
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embedding_vector = model.encode(sentence)
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# Load the valence model
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with open("valence_model.pkl", "rb") as file:
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valence_model = pickle.load(file)
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# Assume `embedding_vector` is the vector obtained from the Knesset-multi model
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valence_score = valence_model.predict([embedding_vector])
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print(f"Predicted Valence Score: {valence_score[0]}")
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```
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