Teach the Restoration, Skip the Runtime Step
TL;DR for operators ReCAST1 treats de-obfuscation as something a classifier should learn during training, not necessarily something a production system should execute before every classification. A Qwen3.5-9B student first learns to identify disguised spans, classify the obfuscation, reconstruct normalized text, and assign a risk label. It is then adapted to classify the original obfuscated SMS directly. ...