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AI & LLM integration patterns

Call LLM APIs, structure prompts, parse responses, and ship AI features safely.

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How to Compute a Mock BLEU Score with n-gram Overlap in Python

Evaluate text similarity with a simplified BLEU score using word-level n-gram precision and a brevity penalty.

bleu n-grams text evaluation
Python 
from collections import Counter

def bleu_score(reference, candidate, n=2):
    """
    Compute a simplified BLEU score with n-gram precision and brevity penalty.
    Mock demo using word-level n-grams.
    """
    ref_tokens = reference.lower().split()
    cand_tokens = candidate.lower().split()
    
    # Compute n-…
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