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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
edition = "2023";
package optimization_guide.proto;
option features.enum_type = CLOSED;
option features.utf8_validation = NONE;
option optimize_for = LITE_RUNTIME;
option java_package = "org.chromium.components.optimization_guide.proto";
option java_outer_classname = "PageTopicsModelMetadataProto";
enum PageTopicsSupportedOutput {
PAGE_TOPICS_SUPPORTED_OUTPUT_UNKNOWN = 0;
// Supports evaluating the visibility score of a page.
PAGE_TOPICS_SUPPORTED_OUTPUT_VISIBILITY = 1;
// Supports evaluating categories of page content.
PAGE_TOPICS_SUPPORTED_OUTPUT_CATEGORIES = 2;
}
message PageTopicsVisibilityPostprocessingParams {
// The name of the category to evaluate whether page content's visibility
// score.
string category_name = 1;
}
message PageTopicsCategoryPostprocessingParams {
// Output at most max_categories, and only those with min_category_weight.
int32 max_categories = 1;
// The minimum weight a category must have for it to be in the output.
float min_category_weight = 2;
// The minimum weight after category weights are normalized that the top N
// categories must have.
float min_normalized_weight_within_top_n = 3;
// The minimum weight for the NONE label has to be to remove all labels.
float min_none_weight = 4;
}
message PageTopicsOutputPostprocessingParams {
// The parameters to use to post-process the visibility score of the page
// content is.
//
// Will only be included if PAGE_TOPICS_SUPPORTED_OUTPUT_VISIBILITY is
// supported by the model.
PageTopicsVisibilityPostprocessingParams visibility_params = 1;
// The parameters to use to post-process categories.
//
// Will only be included if PAGE_TOPICS_SUPPORTED_OUTPUT_CATEGORIES is
// supported by the model.
PageTopicsCategoryPostprocessingParams category_params = 2;
}
message Topic {
// The user-visible string of the taxonomy topic.
string topic_name = 1;
// The id of the topic.
int64 topic_id = 2;
}
message TopicTaxonomy {
// The version of this specific taxonomy, which is separate from the model
// version.
int64 version = 1;
// The topics supported by this taxonomy.
repeated Topic topics = 2;
}
message PageTopicsModelMetadata {
reserved 4;
reserved 5;
// The version is specified by the client as what functionality outside the
// model the client supports (e.g., pre/post processing). When provided from
// the server, it specifies which of these support functions for the model is
// expected to use.
int64 version = 1;
// The supported output.
//
// If sent by the client, this represents the output that the client knows
// how to support. If sent by the server, this represents the outputs of the
// model.
repeated PageTopicsSupportedOutput supported_output = 2
[features.repeated_field_encoding = EXPANDED];
// A set of postprocessing parameters per supported output and will only be
// populated by the server.
PageTopicsOutputPostprocessingParams output_postprocessing_params = 3;
// The taxonomy version sent by the client to request the corresponding model.
int64 taxonomy_version = 6;
}
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