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| author | dominich@chromium.org <dominich@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2012-05-25 18:50:35 +0000 |
|---|---|---|
| committer | dominich@chromium.org <dominich@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2012-05-25 18:50:35 +0000 |
| commit | d6ca5778072ca17fcf3e9e4391ee60a543f95cbb (patch) | |
| tree | 15ed18d7501ccfac5ace8a7273c6355dd4576e7c /chrome/browser/prerender/prerender_field_trial.cc | |
| parent | c5d73596cfae7dd57d237f7d4cb64112511b2300 (diff) | |
| download | chromium_src-d6ca5778072ca17fcf3e9e4391ee60a543f95cbb.zip chromium_src-d6ca5778072ca17fcf3e9e4391ee60a543f95cbb.tar.gz chromium_src-d6ca5778072ca17fcf3e9e4391ee60a543f95cbb.tar.bz2 | |
Remove hit weight experiment.
Results of the experiment show that higher hit weights yield greater coverage, but at the expense of accuracy. The decreased accuracy outweighs the increased coverage.
BUG=111069
Review URL: https://chromiumcodereview.appspot.com/10453013
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@139086 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'chrome/browser/prerender/prerender_field_trial.cc')
| -rw-r--r-- | chrome/browser/prerender/prerender_field_trial.cc | 20 |
1 files changed, 0 insertions, 20 deletions
diff --git a/chrome/browser/prerender/prerender_field_trial.cc b/chrome/browser/prerender/prerender_field_trial.cc index 228c6cd..43c71f6 100644 --- a/chrome/browser/prerender/prerender_field_trial.cc +++ b/chrome/browser/prerender/prerender_field_trial.cc @@ -200,26 +200,6 @@ void ConfigureOmniboxPrerender() { 2012, 12, 30, &g_omnibox_trial_default_group_number)); omnibox_prerender_trial->AppendGroup("OmniboxPrerenderDisabled", kDisabledProbability); - - // Field trial to set weighting of hits. - const base::FieldTrial::Probability kFourProbability = 33; - const base::FieldTrial::Probability kEightProbability = 33; - - scoped_refptr<base::FieldTrial> weighting_trial( - base::FieldTrialList::FactoryGetFieldTrial( - "OmniboxPrerenderHitWeightingTrial", kDivisor, - "OmniboxPrerenderWeight1.0", 2012, 8, 30, NULL)); - const int kOmniboxWeightFourGroup = - weighting_trial->AppendGroup("OmniboxPrerenderWeight4.0", - kFourProbability); - const int kOmniboxWeightEightGroup = - weighting_trial->AppendGroup("OmniboxPrerenderWeight8.0", - kEightProbability); - const int group = weighting_trial->group(); - if (group == kOmniboxWeightFourGroup) - predictors::AutocompleteActionPredictor::set_hit_weight(4.0); - else if (group == kOmniboxWeightEightGroup) - predictors::AutocompleteActionPredictor::set_hit_weight(8.0); } bool IsOmniboxEnabled(Profile* profile) { |