chromium/components/history_clusters/core/ranking_cluster_finalizer.cc

// 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.

#include "components/history_clusters/core/ranking_cluster_finalizer.h"

#include "base/containers/adapters.h"
#include "components/history_clusters/core/history_clusters_util.h"

namespace history_clusters {

namespace {

// See https://en.wikipedia.org/wiki/Smoothstep.
float clamp(float x, float lowerlimit, float upperlimit) { … }

// Maps |values| from the range specified by |low| and
// |high| into [0, 1].
// See https://en.wikipedia.org/wiki/Smoothstep.
float Smoothstep(float low, float high, float value) { … }

}  // namespace

RankingClusterFinalizer::RankingClusterFinalizer(
    ClusteringRequestSource clustering_request_source) { … }

RankingClusterFinalizer::~RankingClusterFinalizer() = default;

void RankingClusterFinalizer::FinalizeCluster(history::Cluster& cluster) { … }

void RankingClusterFinalizer::CalculateVisitAttributeScoring(
    history::Cluster& cluster,
    base::flat_map<history::VisitID, VisitScores>& url_visit_scores) { … }

void RankingClusterFinalizer::CalculateVisitDurationScores(
    history::Cluster& cluster,
    base::flat_map<history::VisitID, VisitScores>& url_visit_scores) { … }

void RankingClusterFinalizer::ComputeFinalVisitScores(
    history::Cluster& cluster,
    base::flat_map<history::VisitID, VisitScores>& url_visit_scores) { … }

}  // namespace history_clusters