Residual ISD (R-ISD) adds a gated LoRA adapter for bit-for-bit lossless acceleration: LoRA active only at MASK positions; verify positions use base-only weights Output is identical to the base AR model by construction
这是一个巧妙的工程创新，通过门控LoRA实现了无损加速。仅在MASK位置激活LoRA，验证位置使用基础权重，确保输出与基础AR模型完全一致。这种方法解决了扩散模型在保持质量的同时实现并行加速的关键挑战，为实际部署提供了可能。
With gated LoRA, ISD enables **bit-for-bit lossless** acceleration
令人惊讶的是：I-DLM通过门控LoRA技术实现了无损(bit-for-bit)加速，这意味着在加速的同时保持了与原始自回归模型完全相同的输出结果。这一突破解决了长期以来扩散模型与自回归模型在输出质量上存在差异的问题，为扩散模型在实际应用中的部署提供了质量保证。
But if you’re a stickler for the technical details, this is why the AirPods Max can’t pull off lossless audio in the truest sense. It also leaves Apple in an awkward spot where other high-end headphones that do support digital audio when hard wired — over USB-C, for example — could deliver the full lossless audio that the AirPods Max can’t.