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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/segmentation_platform/embedder/default_model/resume_heavy_user_model.h"
#include <array>
#include "base/metrics/field_trial_params.h"
#include "base/task/sequenced_task_runner.h"
#include "components/segmentation_platform/internal/metadata/metadata_writer.h"
#include "components/segmentation_platform/public/config.h"
#include "components/segmentation_platform/public/constants.h"
#include "components/segmentation_platform/public/features.h"
#include "components/segmentation_platform/public/model_provider.h"
#include "components/segmentation_platform/public/proto/model_metadata.pb.h"
namespace segmentation_platform {
namespace {
using proto::SegmentId;
// Default parameters for the model.
constexpr SegmentId kSegmentId = SegmentId::RESUME_HEAVY_USER_SEGMENT;
constexpr int64_t kModelVersion = 2;
// InputFeatures.
constexpr std::array<MetadataWriter::UMAFeature, 5> kUMAFeatures = {
MetadataWriter::UMAFeature::FromUserAction("MobileBookmarkManagerOpen", 7),
MetadataWriter::UMAFeature::FromUserAction("NewTabPage.MostVisited.Clicked",
7),
MetadataWriter::UMAFeature::FromUserAction("TabGroup.Created.OpenInNewTab",
7),
MetadataWriter::UMAFeature::FromUserAction("Android.HistoryPage.OpenItem",
7),
MetadataWriter::UMAFeature::FromUserAction("MobileMenuRecentTabs", 7),
};
} // namespace
// static
std::unique_ptr<Config> ResumeHeavyUserModel::GetConfig() {
if (!base::FeatureList::IsEnabled(features::kResumeHeavyUserSegmentFeature)) {
return nullptr;
}
auto config = std::make_unique<Config>();
config->segmentation_key = kResumeHeavyUserKey;
config->segmentation_uma_name = kResumeHeavyUserUmaName;
config->AddSegmentId(SegmentId::RESUME_HEAVY_USER_SEGMENT,
std::make_unique<ResumeHeavyUserModel>());
config->auto_execute_and_cache = true;
config->is_boolean_segment = true;
return config;
}
ResumeHeavyUserModel::ResumeHeavyUserModel()
: DefaultModelProvider(kSegmentId) {}
std::unique_ptr<DefaultModelProvider::ModelConfig>
ResumeHeavyUserModel::GetModelConfig() {
proto::SegmentationModelMetadata metadata;
MetadataWriter writer(&metadata);
writer.SetDefaultSegmentationMetadataConfig(
/*min_signal_collection_length_days=*/7,
/*signal_storage_length_days=*/14);
// Set OutputConfig.
writer.AddOutputConfigForBinaryClassifier(
/*threshold=*/0.5f,
/*positive_label=*/SegmentIdToHistogramVariant(kSegmentId),
/*negative_label=*/kLegacyNegativeLabel);
writer.AddPredictedResultTTLInOutputConfig(
/*top_label_to_ttl_list=*/{}, /*default_ttl=*/14,
/*time_unit=*/proto::TimeUnit::DAY);
// Set features.
writer.AddUmaFeatures(kUMAFeatures.data(), kUMAFeatures.size());
return std::make_unique<ModelConfig>(std::move(metadata), kModelVersion);
}
void ResumeHeavyUserModel::ExecuteModelWithInput(
const ModelProvider::Request& inputs,
ExecutionCallback callback) {
// Invalid inputs.
if (inputs.size() != kUMAFeatures.size()) {
base::SequencedTaskRunner::GetCurrentDefault()->PostTask(
FROM_HERE, base::BindOnce(std::move(callback), std::nullopt));
return;
}
const int bookmarks_opened = inputs[0];
const int mv_tiles_clicked = inputs[1];
const int opened_ntp_from_tab_groups = inputs[2];
const int opened_item_from_history = inputs[3];
const int opened_recent_tabs = inputs[4];
float result = 0;
// Determine if the user has used chrome features to resume workflow.
if (bookmarks_opened >= 2 || mv_tiles_clicked >= 2 ||
opened_ntp_from_tab_groups >= 2 || opened_item_from_history >= 2 ||
opened_recent_tabs >= 2) {
result = 1;
}
base::SequencedTaskRunner::GetCurrentDefault()->PostTask(
FROM_HERE,
base::BindOnce(std::move(callback), ModelProvider::Response(1, result)));
}
} // namespace segmentation_platform
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