Extension:RelatedArticles/CirrusSearchComparison
Introduction edit
This page shows what happens to the Cirrus Search results, used by the Related Pages feature, when we remove popularity from the factors.
With Classic Cirrus Search 2 types of score are combined:
- 'SIMILARITY': A score that computes the similarity between documents, this can be fine-tuned
- 'POPULARITY/QUALITY': A score (we call it "rescore") that use article metadata: 'boostlinks', 'boosttemplates'.
- Boostlinks is a measure of how many articles link in, which is a mark of notability
- boosttemplates are templates that tend to signal quality. Here is a link to the enwiki boost-templates (they vary from wiki to wiki):https://en.wikipedia.org/wiki/MediaWiki:Cirrussearch-boost-templates
These 3 scores are multiplied together to achieve the final score. To use an example of a bad match:
- Article: A_Summer_Bird-Cage
- The score for "I Know Why the Caged Bird Sings" with boost links is:
- similarity: 0.3457441 (terms chosen: "from", "cage", "bird")
- boostlinks: 2.807535
- boost-templates: 2
- total: 0.3457441 * 2.807535 * 2 => 1.9413773
Below, you see 3 columns, showing results for different settings:
Score type | classic | classic noboostlinks | empty |
---|---|---|---|
Similarity | YES | YES | YES |
Boostlinks (inbound links) | YES | NO | YES |
Boosttemplate (featured article, etc) | YES | NO | NO |
Community suggested list comparison, 20 Jun 2016 edit
See phabricator.wikimedia.org/T128822#2372230
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JKatz's list comparison, 20 Jun 2016 edit
See phabricator.wikimedia.org/T128822#2372230