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# models/property_relation.py
from .model_loader import load_model
from .logging_config import logger
def check_if_property_related(text):
try:
# Validate input
if not isinstance(text, str):
logger.warning(f"Input to check_if_property_related is not a string: {type(text)}")
text = str(text) if text is not None else ""
if not text.strip():
logger.warning("Empty text provided to check_if_property_related.")
return {
'is_related': False,
'confidence': 0.0,
'error': 'No text provided',
'model_used': 'static_fallback'
}
try:
classifier = load_model("zero-shot-classification") # Use standard model instead of typeform
except Exception as e:
logger.error(f"Error loading model in property relation: {str(e)}")
return {
'is_related': False,
'confidence': 0.0,
'error': f'Model loading error: {str(e)}',
'model_used': 'static_fallback'
}
result = classifier(text[:1000], ["property-related", "non-property-related"])
# Defensive: ensure result structure
labels = result.get('labels', [])
scores = result.get('scores', [])
if not labels or not scores or len(labels) != 2 or len(scores) != 2:
logger.error(f"Unexpected model output in check_if_property_related: {result}")
return {
'is_related': False,
'confidence': 0.0,
'error': 'Model output error',
'model_used': 'static_fallback'
}
is_related = labels[0] == "property-related"
model_used = getattr(classifier, 'fallback_model', 'primary_model')
return {
'is_related': is_related,
'confidence': float(scores[0]) if is_related else float(scores[1]),
'model_used': model_used
}
except Exception as e:
logger.error(f"Error checking property relation: {str(e)}")
return {
'is_related': False,
'confidence': 0.0,
'error': str(e),
'model_used': 'static_fallback'
}
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