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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/frequent_feature_user_model.h"
#include <array>
#include "base/feature_list.h"
#include "base/task/sequenced_task_runner.h"
#include "components/segmentation_platform/internal/metadata/metadata_writer.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 frequent feature user model.
constexpr SegmentId kFrequentFeatureUserSegmentId =
SegmentId::FREQUENT_FEATURE_USER_SEGMENT;
constexpr int64_t kSignalStorageLength = 28;
constexpr int64_t kMinSignalCollectionLength = 7;
constexpr std::array<int32_t, 1> kUrlOnly{0};
constexpr std::array<int32_t, 1> kSearchOnly{1};
// InputFeatures.
constexpr std::array<MetadataWriter::UMAFeature, 10> kUMAFeatures = {
MetadataWriter::UMAFeature::FromUserAction("MobileMenuAddToBookmarks", 7),
MetadataWriter::UMAFeature::FromUserAction("MobileMenuTranslate", 7),
MetadataWriter::UMAFeature::FromUserAction("Suggestions.Content.Opened", 7),
MetadataWriter::UMAFeature::FromUserAction("MobileMenuAllBookmarks", 7),
MetadataWriter::UMAFeature::FromUserAction(
"MobileBookmarkManagerEntryOpened",
7),
MetadataWriter::UMAFeature::FromUserAction(
"Autofill.KeyMetrics.FillingAssistance.CreditCard",
7),
MetadataWriter::UMAFeature::FromUserAction("PasswordManager_Autofilled", 7),
MetadataWriter::UMAFeature::FromUserAction("MobileNTPMostVisited", 7),
MetadataWriter::UMAFeature::FromEnumHistogram(
"Omnibox.SuggestionUsed.ClientSummarizedResultType",
7,
kUrlOnly.data(),
kUrlOnly.size()),
MetadataWriter::UMAFeature::FromEnumHistogram(
"Omnibox.SuggestionUsed.ClientSummarizedResultType",
7,
kSearchOnly.data(),
kSearchOnly.size()),
};
} // namespace
// static
std::unique_ptr<Config> FrequentFeatureUserModel::GetConfig() {
if (!base::FeatureList::IsEnabled(
features::kFrequentFeatureUserSegmentFeature)) {
return nullptr;
}
auto config = std::make_unique<Config>();
config->segmentation_key = kFrequentFeatureUserKey;
config->segmentation_uma_name = kFrequentFeatureUserUmaName;
config->AddSegmentId(SegmentId::FREQUENT_FEATURE_USER_SEGMENT,
std::make_unique<FrequentFeatureUserModel>());
config->auto_execute_and_cache = true;
config->is_boolean_segment = true;
return config;
}
FrequentFeatureUserModel::FrequentFeatureUserModel()
: DefaultModelProvider(kFrequentFeatureUserSegmentId) {}
std::unique_ptr<DefaultModelProvider::ModelConfig>
FrequentFeatureUserModel::GetModelConfig() {
proto::SegmentationModelMetadata frequent_feature_user_metadata;
MetadataWriter writer(&frequent_feature_user_metadata);
writer.SetDefaultSegmentationMetadataConfig(kMinSignalCollectionLength,
kSignalStorageLength);
writer.AddOutputConfigForBinaryClassifier(
0.5,
SegmentIdToHistogramVariant(SegmentId::FREQUENT_FEATURE_USER_SEGMENT),
kLegacyNegativeLabel);
writer.AddPredictedResultTTLInOutputConfig(
/*top_label_to_ttl_list=*/{},
/*default_ttl=*/7, proto::TimeUnit::DAY);
// Set features.
writer.AddUmaFeatures(kUMAFeatures.data(), kUMAFeatures.size());
constexpr int kModelVersion = 2;
return std::make_unique<ModelConfig>(
std::move(frequent_feature_user_metadata), kModelVersion);
}
void FrequentFeatureUserModel::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;
}
int total_non_search_feature = 0;
for (int i = 0; i <= 8; ++i)
total_non_search_feature += inputs[i];
float result = (total_non_search_feature > 0 && inputs[9] > 0) ? 1 : 0;
base::SequencedTaskRunner::GetCurrentDefault()->PostTask(
FROM_HERE,
base::BindOnce(std::move(callback), ModelProvider::Response(1, result)));
}
} // namespace segmentation_platform
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