visolex / phobert-v1-hsd

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Total runs: 65
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Model's Last Updated: January 05 2026
text-classification

Introduction of phobert-v1-hsd

Model Details of phobert-v1-hsd

PHOBERT-V1

PhoBERT Base fine-tuned cho bài toán phân loại Hate Speech tiếng Việt.

Model Details
  • Model type : Fine-tuned transformer model
  • Architecture : PhoBERT (BERT được pretrain trên dữ liệu tiếng Việt bởi VinAI)
  • Base model : vinai/phobert-base
  • Task : Hate Speech Classification
  • Language : Vietnamese
  • Labels : CLEAN (0), OFFENSIVE (1), HATE (2)
📊 Model Performance
Metric Score
Accuracy 0.9421
F1 Macro 0.8308
F1 Weighted 0.9394
Model Description

PhoBERT Base fine-tuned cho bài toán phân loại Hate Speech tiếng Việt. Model này được fine-tune từ vinai/phobert-base trên dataset ViHSD (Vietnamese Hate Speech Dataset).

How to Use
Basic Usage
from transformers import AutoTokenizer, AutoModelForSequenceClassification
import torch

# Load model and tokenizer
model_name = "visolex/hate-speech-phobert-v1"
tokenizer = AutoTokenizer.from_pretrained(model_name)
model = AutoModelForSequenceClassification.from_pretrained(model_name)

# Classify text
text = "Văn bản tiếng Việt cần phân loại"
inputs = tokenizer(text, return_tensors="pt", padding=True, truncation=True)

with torch.no_grad():
    outputs = model(**inputs)
    predictions = torch.nn.functional.softmax(outputs.logits, dim=-1)
    predicted_label = torch.argmax(predictions, dim=-1).item()

# Label mapping
label_names = {
    0: "CLEAN",
    1: "OFFENSIVE",
    2: "HATE"
}

print(f"Predicted label: {label_names[predicted_label]}")
print(f"Confidence scores: {predictions[0].tolist()}")
Using the Pipeline
from transformers import pipeline

classifier = pipeline(
    "text-classification",
    model="visolex/hate-speech-phobert-v1",
    tokenizer="visolex/hate-speech-phobert-v1"
)

result = classifier("Văn bản tiếng Việt cần phân loại")
print(result)
Training Details
Training Data
  • Dataset: ViHSD (Vietnamese Hate Speech Dataset)
  • Training samples: ~8,000 samples
  • Validation samples: ~1,000 samples
  • Test samples: ~1,000 samples
Training Procedure
  • Framework: PyTorch + Transformers
  • Optimizer: AdamW
  • Learning Rate: 2e-5
  • Batch Size: 32
  • Epochs: Varies by model
  • Max Sequence Length: 256
Label Distribution
  • CLEAN (0): Normal content without offensive language
  • OFFENSIVE (1): Mildly offensive content
  • HATE (2): Hate speech and extremist language
Evaluation

Model được đánh giá trên test set của ViHSD với các metrics:

  • Accuracy: Overall classification accuracy
  • F1 Macro: Macro-averaged F1 score across all labels
  • F1 Weighted: Weighted F1 score based on label frequency
Limitations and Bias
  • Model chỉ được train trên dữ liệu tiếng Việt từ mạng xã hội
  • Performance có thể giảm trên domain khác (email, document, etc.)
  • Model có thể có bias từ dữ liệu training
  • Cần đánh giá thêm trên dữ liệu real-world
Citation
Contact
License

This model is distributed under the MIT License.

Runs of visolex phobert-v1-hsd on huggingface.co

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