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README.md
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---
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language: en
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license: mit
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tags:
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- text-classification
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- roberta
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- normativity
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- deontic-logic
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- social-norms
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base_model:
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- FacebookAI/roberta-base
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- FacebookAI/roberta-large
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datasets:
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- SALT-NLP/CultureBank
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---
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# Normative Statement Classifier — RoBERTa Fine-tunes
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A collection of fine-tuned RoBERTa models for detecting **normative statements** in text — sentences and documents that express social norms, obligations, prohibitions, or moral judgments (e.g. *"people should remove their shoes before entering"*).
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> Github link for the full project: [Git](https://github.com/AnikMallick/norm-classifier)
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---
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## Models in this repository
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| Subfolder | Base | Description |
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|---|---|---|
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| `roberta-base-classifier-v01` | `roberta-base` | Baseline fine-tune on norm classification |
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| `roberta-base-tapt` | `roberta-base` | Task-Adaptive Pre-Training (TAPT) checkpoint |
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| `roberta-large-classifier-v01` | `roberta-large` | Larger model fine-tune for higher capacity |
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| `roberta-tapt-classifier-v01` | TAPT checkpoint | Fine-tuned on top of the TAPT checkpoint |
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---
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## Usage — `roberta-base-classifier-v01`
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### Load the model
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```python
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from huggingface_hub import snapshot_download
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from transformers import RobertaForSequenceClassification, RobertaTokenizer
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import torch
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# Download from HF Hub
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snapshot_download(
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repo_id="anik-owl/roberta_norm_classifier",
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allow_patterns="roberta-base-classifier-v01/*",
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local_dir="./artifacts",
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)
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# Load model + tokenizer
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model = RobertaForSequenceClassification.from_pretrained(
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"./artifacts/roberta-base-classifier-v01",
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num_labels=2,
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)
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tokenizer = RobertaTokenizer.from_pretrained("FacebookAI/roberta-base")
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model.eval()
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```
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### Inference
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```python
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def predict(text: str, model, tokenizer, threshold: float = 0.5):
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inputs = tokenizer(
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text,
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return_tensors="pt",
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truncation=True,
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padding=True,
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max_length=256,
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)
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with torch.no_grad():
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logits = model(**inputs).logits
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probs = torch.softmax(logits, dim=-1)
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prob_norm = probs[0][1].item()
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return {
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"label": "NORMATIVE" if prob_norm >= threshold else "NOT NORMATIVE",
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"score": round(prob_norm, 4),
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}
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# Example
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text = "People should always greet elders with respect."
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result = predict(text, model, tokenizer)
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print(result)
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# {'label': 'NORMATIVE', 'score': 0.9341}
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```
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### Labels
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| ID | Label |
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|---|---|
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| 0 | NOT NORMATIVE |
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| 1 | NORMATIVE |
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---
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## Intended use
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These models are intended for research on computational social science, normative reasoning, and deontic language detection. They were developed as part of a thesis project on identifying normative statements in natural language.
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**Not intended for** high-stakes automated decision-making without human review.
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---
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## Limitations
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- Trained on a specific dataset of normative statements — may not generalise to all domains or languages
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- Short, context-free sentences may be harder to classify accurately
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- Models may reflect biases present in the training data
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---
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## Citation
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If you use these models in your work, please cite this repository:
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```bibtex
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@misc{anik-owl-normclsf,
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author = {anik-owl},
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title = {Normative Statement Classifier — RoBERTa Fine-tunes},
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year = {2026},
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publisher = {Hugging Face},
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howpublished = {\url{https://huggingface.co/anik-owl/roberta_norm_classifier}},
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}
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```
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