Function: viterbiDecode()

viterbiDecode(logits, validLen, grammar, constrainEnd?): Int32Array

Defined in: extensions/nlp/utils/privacyFilterUtils.ts:223

Runs constrained Viterbi over a [validLen, numLabels] slice of per-token logits and returns the best BIOES-grammar-valid label-id sequence (length validLen).

Parameters

logits

Float32Array

Flat row-major logits; row t starts at t * numLabels.

validLen

number

Number of leading token rows to decode.

grammar

Grammar

Pre-computed grammar tables from buildGrammar.

constrainEnd?

boolean = false

When true, the decoded sequence is forced to end on a valid BIOES terminal (O/E-x/S-x) rather than an open span (B-x/I-x). Pass true only when this slice ends where the text ends; a slice cut mid-span (e.g. an interior sliding window) should leave this false. Defaults to false.

Returns

Int32Array

The most likely label id per token.