Optimization model override metadata

[V. A.]

Hi everyone 

I'm trying to use local models for the phishing classifier using the command switch--optimization-guide-model-override=OPTIMIZATION_TARGET:path/to/model_file[ :base64_metadata ]

As we can see in components/optimization_guide/core/optimization_guide_switches.cc

the metadatas are optional, but when I run chromium with my model it is asking for them

Do you know what kind of metadata are needed ?

[Daniel Rubery]

The metadata format is per-target, so there's no one answer to your question. But since you mention the phishing classifier, I can point you here, which is where that target processes the metadata. It needs to be a ClientSidePhishingModelMetadata (with the Any wrapping, serialization, etc), and you can read the nearby code to understand the semantics.

I'll also note that the phishing classifier seems to have its own override flag (source). I'm not sure which will be more usable for you, but it might be interesting to look at.

[V. A.]

thank you 

from what I see the  kOverrideCsdModelFlag[] = "csd-model-override-path" is used only for tests

so the only option to run a local model from the other command switch