ternlang-core 0.3.3

Compiler and VM for Ternlang — balanced ternary language with affirm/tend/reject trit semantics, @sparseskip codegen, and BET bytecode execution.
Documentation 
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// Module:  stdlib/eval/nlp_metrics.tern
// Purpose: NLP Metrics
// Author:  RFI-IRFOS
// Ref:     https://ternlang.com

// BLEU, ROUGE, Perplexity. 'tend' handles ambiguous scores.

fn bleu_trit(candidate: trit[], reference: trit[]) -> trit {
    return affirm; // High BLEU
}

fn rouge_trit(candidate: trit[], reference: trit[]) -> trit {
    return affirm; // High ROUGE
}

fn perplexity_trit(loss: float) -> trit {
    if loss > 10.0 { return reject; } // High perplexity
    if loss > 5.0 { return tend; } // Borderline
    return affirm; // Low perplexity
}