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Lower default KENLM_ALPHA 0.5→0.2, BETA 1.5→1.0
#5
by chirag18 - opened
First end-to-end test showed alpha=0.5 was too aggressive — LM was
overriding acoustic evidence at word boundaries and dropping leading
characters (Severe→evere, soft tissue→ft issue, etc.). Conservative
alpha=0.2 keeps word boundaries intact while still benefiting from
LM on word-choice errors. Tunable via env var without rebuild.
deepakkaura changed pull request status to merged