app.py

import streamlit as st
from transformers import AutoTokenizer, AutoModelForSequenceClassification
import torch

# 加载模型和tokenizer
tokenizer = AutoTokenizer.from_pretrained("saved_models/model_20240302-214915_lr1e-05_optAdamW_lossBCEWithLogitsLoss_batch16_epoch10.pt")
model = AutoModelForSequenceClassification.from_pretrained("saved_models/model_20240302-214915_lr1e-05_optAdamW_lossBCEWithLogitsLoss_batch16_epoch10.pt", num_labels=8)
model.eval()

def predict(text):
    inputs = tokenizer(text, return_tensors="pt", padding=True, truncation=True, max_length=512)
    with torch.no_grad():
        outputs = model(**inputs)
        logits = outputs.logits
    probabilities = torch.softmax(logits, dim=1).squeeze()
    # 假设每个类别（SAS_Class和SDS_Class）都有4个概率值
    sas_probs = probabilities[:4]  # 获取SAS_Class的概率
    sds_probs = probabilities[4:]  # 获取SDS_Class的概率
    return sas_probs, sds_probs

# 创建Streamlit应用
st.title("Multi-label Classification App")

# 用户输入文本
user_input = st.text_area("Enter text here", "Type something...")

if st.button("Predict"):
    # 显示预测结果
    sas_probs, sds_probs = predict(user_input)
    st.write("SAS_Class probabilities:", sas_probs.numpy())
    st.write("SDS_Class probabilities:", sds_probs.numpy())