Renamed files and classes, updated README instructions to use pip
Browse files- README.md +124 -46
- __init__.py +1 -1
- config.json +1 -1
- electra_base_classifier_sentiment.py → electra_classifier.py +10 -9
README.md
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# Electra Base Classifier for Sentiment Analysis
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This
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## Model Architecture
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- **Base Model**: ELECTRA base (`google/electra-base-discriminator`)
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- **Custom Components**:
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- **Pooling Layer**: Custom pooling layer supporting 'cls', 'mean', and 'max' pooling types.
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- **Activation Function**: Custom SwishGLU activation function.
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- **Classifier**: Custom classifier with configurable hidden dimensions, number of layers, and dropout rate.
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## Labels
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## How to Use
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```python
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import torch
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from transformers import AutoTokenizer
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from
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model_name = "jbeno/electra-base-classifier-sentiment"
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tokenizer = AutoTokenizer.from_pretrained(model_name)
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model =
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model.eval()
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#
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text = "I love this
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inputs = tokenizer(text, return_tensors="pt")
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with torch.no_grad():
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logits = model(**inputs)
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predicted_class_id = torch.argmax(logits, dim=1).item()
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predicted_label = model.config.id2label[
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print(f"Predicted label: {predicted_label}")
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```
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## Requirements
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- Python 3.7+
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- PyTorch
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- Transformers
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## Custom Model Components
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- `dropout_rate`: Dropout rate used in the classifier.
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- `pooling`: Pooling strategy used ('mean').
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## Training Details
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### Dataset
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The model was trained on the [Sentiment Merged](https://huggingface.co/datasets/jbeno/sentiment_merged) dataset, which is a mix of Stanford Sentiment Treebank (SST-3), DynaSent Round 1, and DynaSent Round 2.
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### Code
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The code used to train the model can be found on GitHub: [jbeno/sentiment](https://github.com/jbeno/sentiment)
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### Research Paper
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The research paper can be found here: [ELECTRA and GPT-4o: Cost-Effective Partners for Sentiment Analysis](https://github.com/jbeno/sentiment/research_paper.pdf)
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### Performance
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- **Merged Dataset**
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- Macro Average F1: **79.29**
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- Accuracy: **79.69**
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- **DynaSent R1**
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- Macro Average F1: **82.10**
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- Accuracy: **82.14**
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- **DynaSent R2**
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- Macro Average F1: **71.83**
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- Accuracy: **71.94**
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- **SST-3**
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- Macro Average F1: **69.95**
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- Accuracy: **78.24**
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## License
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This model is licensed under the MIT License.
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# Electra Base Classifier for Sentiment Analysis
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This is an [ELECTRA base discriminator](https://huggingface.co/google/electra-base-discriminator) fine-tuned for sentiment analysis of reviews. It has a mean pooling layer and a classifier head (2 layers of 1024 dimension) with SwishGLU activation and dropout (0.3). It classifies text into three sentiment categories: 'negative' (0), 'neutral' (1), and 'positive' (2). It was fine-tuned on the [Sentiment Merged](https://huggingface.co/datasets/jbeno/sentiment_merged) dataset, which is a merge of Stanford Sentiment Treebank (SST-3), and DynaSent Rounds 1 and 2.
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## Labels
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## How to Use
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### Install package
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This model requires the classes in `electra_classifier.py`. You can download the file, or you can install the package from PyPI.
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```bash
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pip install electra-classifier
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```
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### Load classes and model
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```python
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# Install the package in a notebook
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!pip install electra-classifier
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# Import libraries
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import torch
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from transformers import AutoTokenizer
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from electra_classifier import ElectraClassifier
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# Load tokenizer and model
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model_name = "jbeno/electra-base-classifier-sentiment"
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tokenizer = AutoTokenizer.from_pretrained(model_name)
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model = ElectraClassifier.from_pretrained(model_name)
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# Set model to evaluation mode
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model.eval()
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# Run inference
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text = "I love this restaurant!"
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inputs = tokenizer(text, return_tensors="pt")
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with torch.no_grad():
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logits = model(**inputs)
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predicted_class_id = torch.argmax(logits, dim=1).item()
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predicted_label = model.config.id2label[predicted_class_id]
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print(f"Predicted label: {predicted_label}")
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```
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## Requirements
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- Python 3.7+
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- PyTorch
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- Transformers
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- [electra-classifier](https://pypi.org/project/electra-classifier/) - Install with pip, or download electra_classifier.py
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## Training Details
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### Dataset
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The model was trained on the [Sentiment Merged](https://huggingface.co/datasets/jbeno/sentiment_merged) dataset, which is a mix of Stanford Sentiment Treebank (SST-3), DynaSent Round 1, and DynaSent Round 2.
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### Code
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The code used to train the model can be found on GitHub:
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- [jbeno/sentiment](https://github.com/jbeno/sentiment)
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- [jbeno/electra-classifier](https://github.com/jbeno/electra-classifier)
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### Research Paper
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The research paper can be found here: [ELECTRA and GPT-4o: Cost-Effective Partners for Sentiment Analysis](https://github.com/jbeno/sentiment/research_paper.pdf)
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### Performance
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- **Merged Dataset**
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- Macro Average F1: **79.29**
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- Accuracy: **79.69**
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- **DynaSent R1**
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- Macro Average F1: **82.10**
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- Accuracy: **82.14**
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- **DynaSent R2**
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- Macro Average F1: **71.83**
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- Accuracy: **71.94**
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- **SST-3**
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- Macro Average F1: **69.95**
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- Accuracy: **78.24**
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## Model Architecture
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- **Base Model**: ELECTRA base discriminator (`google/electra-base-discriminator`)
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- **Pooling Layer**: Custom pooling layer supporting 'cls', 'mean', and 'max' pooling types.
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- **Classifier**: Custom classifier with configurable hidden dimensions, number of layers, and dropout rate.
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- **Activation Function**: Custom SwishGLU activation function.
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```
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ElectraClassifier(
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(electra): ElectraModel(
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(embeddings): ElectraEmbeddings(
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(word_embeddings): Embedding(30522, 768, padding_idx=0)
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(position_embeddings): Embedding(512, 768)
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(token_type_embeddings): Embedding(2, 768)
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(LayerNorm): LayerNorm((768,), eps=1e-12, elementwise_affine=True)
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(dropout): Dropout(p=0.1, inplace=False)
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)
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(encoder): ElectraEncoder(
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(layer): ModuleList(
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(0-11): 12 x ElectraLayer(
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(attention): ElectraAttention(
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(self): ElectraSelfAttention(
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(query): Linear(in_features=768, out_features=768, bias=True)
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(key): Linear(in_features=768, out_features=768, bias=True)
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(value): Linear(in_features=768, out_features=768, bias=True)
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(dropout): Dropout(p=0.1, inplace=False)
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)
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(output): ElectraSelfOutput(
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(dense): Linear(in_features=768, out_features=768, bias=True)
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(LayerNorm): LayerNorm((768,), eps=1e-12, elementwise_affine=True)
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(dropout): Dropout(p=0.1, inplace=False)
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)
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)
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(intermediate): ElectraIntermediate(
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(dense): Linear(in_features=768, out_features=3072, bias=True)
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(intermediate_act_fn): GELUActivation()
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)
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(output): ElectraOutput(
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(dense): Linear(in_features=3072, out_features=768, bias=True)
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(LayerNorm): LayerNorm((768,), eps=1e-12, elementwise_affine=True)
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(dropout): Dropout(p=0.1, inplace=False)
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)
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)
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(pooling): PoolingLayer()
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(classifier): Classifier(
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(layers): Sequential(
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(0): Linear(in_features=768, out_features=1024, bias=True)
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(1): SwishGLU(
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(projection): Linear(in_features=1024, out_features=2048, bias=True)
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(activation): SiLU()
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)
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(2): Dropout(p=0.3, inplace=False)
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(3): Linear(in_features=1024, out_features=1024, bias=True)
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(4): SwishGLU(
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(projection): Linear(in_features=1024, out_features=2048, bias=True)
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(activation): SiLU()
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)
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(5): Dropout(p=0.3, inplace=False)
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(6): Linear(in_features=1024, out_features=3, bias=True)
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)
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)
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)
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```
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## Custom Model Components
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- `dropout_rate`: Dropout rate used in the classifier.
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- `pooling`: Pooling strategy used ('mean').
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## License
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This model is licensed under the MIT License.
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__init__.py
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from .
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from .electra_classifier import ElectraClassifier
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config.json
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{
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"architectures": [
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],
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"attention_probs_dropout_prob": 0.1,
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"classifier_dropout": null,
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{
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"architectures": [
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"ElectraClassifier"
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],
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"attention_probs_dropout_prob": 0.1,
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"classifier_dropout": null,
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electra_base_classifier_sentiment.py → electra_classifier.py
RENAMED
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import torch
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from transformers import ElectraPreTrainedModel, ElectraModel
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class SwishGLU(nn.Module):
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def __init__(self, input_dim: int, output_dim: int):
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super(SwishGLU, self).__init__()
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# Linear projection to 2 * output_dim to split for gate and projection
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self.projection = nn.Linear(input_dim, 2 * output_dim)
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self.activation = nn.SiLU()
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def forward(self, x):
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# Apply linear projection
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x_proj_gate = self.projection(x)
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# Split the projection into two parts
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projected, gate = x_proj_gate.tensor_split(2, dim=-1)
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# Apply Swish activation and multiply
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return projected * self.activation(gate)
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class PoolingLayer(nn.Module):
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def __init__(self, pooling_type='cls'):
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super().__init__()
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else:
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raise ValueError(f"Unknown pooling method: {self.pooling_type}")
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class Classifier(nn.Module):
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def __init__(self, input_dim, hidden_dim, hidden_activation, num_layers, n_classes, dropout_rate=0.0):
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super().__init__()
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def forward(self, x):
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return self.layers(x)
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def __init__(self, config):
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super().__init__(config)
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self.electra = ElectraModel(config)
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)
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self.init_weights()
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def forward(self, input_ids=None, attention_mask=None, **kwargs):
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outputs = self.electra(input_ids, attention_mask=attention_mask, **kwargs)
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pooled_output = self.pooling(outputs.last_hidden_state, attention_mask)
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import torch
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from torch import nn
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from transformers import ElectraPreTrainedModel, ElectraModel
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# Custom activation function
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class SwishGLU(nn.Module):
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def __init__(self, input_dim: int, output_dim: int):
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super(SwishGLU, self).__init__()
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self.projection = nn.Linear(input_dim, 2 * output_dim)
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self.activation = nn.SiLU()
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def forward(self, x):
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x_proj_gate = self.projection(x)
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projected, gate = x_proj_gate.tensor_split(2, dim=-1)
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| 15 |
return projected * self.activation(gate)
|
| 16 |
|
| 17 |
+
|
| 18 |
+
# Custom pooling layer
|
| 19 |
class PoolingLayer(nn.Module):
|
| 20 |
def __init__(self, pooling_type='cls'):
|
| 21 |
super().__init__()
|
|
|
|
| 33 |
else:
|
| 34 |
raise ValueError(f"Unknown pooling method: {self.pooling_type}")
|
| 35 |
|
| 36 |
+
|
| 37 |
+
# Custom classifier
|
| 38 |
class Classifier(nn.Module):
|
| 39 |
def __init__(self, input_dim, hidden_dim, hidden_activation, num_layers, n_classes, dropout_rate=0.0):
|
| 40 |
super().__init__()
|
|
|
|
| 56 |
def forward(self, x):
|
| 57 |
return self.layers(x)
|
| 58 |
|
| 59 |
+
|
| 60 |
+
# Custom Electra classifier model
|
| 61 |
+
class ElectraClassifier(ElectraPreTrainedModel):
|
| 62 |
def __init__(self, config):
|
| 63 |
super().__init__(config)
|
| 64 |
self.electra = ElectraModel(config)
|
|
|
|
| 89 |
)
|
| 90 |
self.init_weights()
|
| 91 |
|
|
|
|
| 92 |
def forward(self, input_ids=None, attention_mask=None, **kwargs):
|
| 93 |
outputs = self.electra(input_ids, attention_mask=attention_mask, **kwargs)
|
| 94 |
pooled_output = self.pooling(outputs.last_hidden_state, attention_mask)
|