Update main.py
Browse files
main.py
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@@ -10,81 +10,81 @@ model_name = "ProsusAI/finbert"
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print(f"Loading model {model_name}...")
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try:
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except Exception as e:
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# --------- Định nghĩa Schema ---------
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class AnalyzeRequest(BaseModel):
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class AnalyzeResult(BaseModel):
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class AnalyzeResponse(BaseModel):
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# --------- Helper Function ---------
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def calculate_numeric_score(label: str, score: float) -> float:
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# --------- API Endpoints ---------
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@app.get("/")
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def read_root():
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@app.post("/api/sentiment", response_model=AnalyzeResponse)
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def analyze_sentiment(req: AnalyzeRequest):
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print(f"Loading model {model_name}...")
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try:
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tokenizer = AutoTokenizer.from_pretrained(model_name, use_fast=True)
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model = AutoModelForSequenceClassification.from_pretrained(model_name, num_labels=3)
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cryptobert = TextClassificationPipeline(
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model=model,
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tokenizer=tokenizer,
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max_length=64,
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truncation=True,
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padding='max_length'
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)
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print("Model loaded successfully!")
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except Exception as e:
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print(f"Error loading model: {e}")
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cryptobert = None
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# --------- Định nghĩa Schema ---------
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class AnalyzeRequest(BaseModel):
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texts: list[str]
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class AnalyzeResult(BaseModel):
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text: str
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label: str
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score: float
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numeric_score: float
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class AnalyzeResponse(BaseModel):
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results: list[AnalyzeResult]
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avg_score: float
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# --------- Helper Function ---------
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def calculate_numeric_score(label: str, score: float) -> float:
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if label == 'positive':
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return score
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elif label == 'negative':
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return -score
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else: # Neutral
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return 0.0
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# --------- API Endpoints ---------
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@app.get("/")
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def read_root():
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return {"status": "ok", "message": "FinBERT API is running", "model_loaded": cryptobert is not None}
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@app.post("/api/sentiment", response_model=AnalyzeResponse)
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def analyze_sentiment(req: AnalyzeRequest):
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if not cryptobert:
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raise HTTPException(status_code=500, detail="Model is not loaded properly.")
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if not req.texts:
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return {"results": [], "avg_score": 0.0}
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try:
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# Run predictions in batch
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preds = cryptobert(req.texts)
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results = []
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total_numeric = 0.0
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for text, pred in zip(req.texts, preds):
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label = pred['label']
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score = float(pred['score'])
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numeric_score = calculate_numeric_score(label, score)
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results.append({
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"text": text,
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"label": label,
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"score": score,
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"numeric_score": numeric_score
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})
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total_numeric += numeric_score
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avg_score = total_numeric / len(results) if len(results) > 0 else 0.0
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return {
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"results": results,
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"avg_score": avg_score
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}
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except Exception as e:
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raise HTTPException(status_code=500, detail=str(e))
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