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Levenshtein distance without langchain #1072

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Merged
pieroit merged 1 commit into from
May 2, 2025
Merged

Levenshtein distance without langchain #1072

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14 changes: 4 additions & 10 deletions core/cat/utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,8 @@
from typing import Dict, Tuple
from pydantic import BaseModel, ConfigDict

from langchain.evaluation import StringDistance, load_evaluator, EvaluatorType
from rapidfuzz.fuzz import ratio
from rapidfuzz.distance import Levenshtein
from langchain_core.output_parsers import JsonOutputParser
from langchain_core.prompts import PromptTemplate
from langchain_core.utils import get_colored_text
Expand Down Expand Up @@ -155,15 +156,8 @@ def deprecation_warning(message: str, skip=3):


def levenshtein_distance(prediction: str, reference: str) -> int:
jaro_evaluator = load_evaluator(
EvaluatorType.STRING_DISTANCE, distance=StringDistance.LEVENSHTEIN
)
result = jaro_evaluator.evaluate_strings(
prediction=prediction,
reference=reference,
)
return result["score"]

res = Levenshtein.normalized_distance(prediction, reference)
return res

def parse_json(json_string: str, pydantic_model: BaseModel = None) -> dict:
# instantiate parser
Expand Down
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