tabs/roberta_chatbot.py

import gradio as gr
from transformers import pipeline, AutoTokenizer, AutoModelForSequenceClassification

def create_roberta_chatbot_tab():
    # Load pre-trained model and tokenizer
    model_name = "roberta-base"
    tokenizer = AutoTokenizer.from_pretrained(model_name)
    model = AutoModelForSequenceClassification.from_pretrained(model_name)

    # Create a text classification pipeline
    classifier = pipeline("text-classification", model=model, tokenizer=tokenizer)

    # Define response generation function
    def generate_response(input_text):
        # Classify the input text
        result = classifier(input_text)[0]
        label = result['label']
        score = result['score']

        # Map the classification result to a response
        responses = {
            "LABEL_0": "I understand you might be going through a difficult time. Remember, it's okay to seek help when you need it.",
            "LABEL_1": "Your feelings are valid. Have you considered talking to a mental health professional about this?",
            "LABEL_2": "Taking care of your mental health is crucial. Small steps like regular exercise and good sleep can make a big difference.",
            "LABEL_3": "It sounds like you're dealing with a lot. Remember, you're not alone in this journey.",
            "LABEL_4": "I hear you. Coping with mental health challenges can be tough. Have you tried any relaxation techniques like deep breathing or meditation?"
        }

        return responses.get(label, "I'm here to listen and support you. Could you tell me more about how you're feeling?")

    # Define chatbot function for Gradio
    def chatbot(message, history):
        response = generate_response(message)
        return response

    # Create Gradio interface
    iface = gr.ChatInterface(
        fn=chatbot,
        # title="Mental Health Support Chatbot (RoBERTa)",
    )
    
    return iface