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Relevance Ranking in the Scholarly Domain. Dr. Tamar Sadeh LIBER Conference Tartu, Estonia, June 2012. The top three keys for success. 1. 2. 3. Content. 1. Speed. 2. Relevance Ranking. 3. - PowerPoint PPT Presentation
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Relevance Ranking in the Scholarly Domain
Dr. Tamar SadehLIBER Conference
Tartu, Estonia, June 2012
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1 2 3The top three keys for success
1 Content
2 Speed
3 Relevance Ranking
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Relevance is the measure of correspondence between a document and a query as determined by a user
Based on Saracevic, 1975
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• System or algorithmic relevance• Topical or subject relevance• Cognitive relevance or pertinence• Situational relevance or utility• Affective relevance
• System or algorithmic relevance• Topical or subject relevance• Cognitive relevance or pertinence• Situational relevance or utility• Effective relevance
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There is no absolute relevance
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The ScholarRank
Project
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The GoalEnhance the Primo relevance
ranking algorithm
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Relevance ranking was not new to us.
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Methodology
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• Setting up a team• Building test environment, tools, and
procedures• Defining metrics to evaluate our current
success and the improvements we make• Defining measurements to assess the success
of the changes, once implemented
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Evaluation
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• Working with researchers• Researchers’ evaluation quantified • Enhancements introduced and checked in the
lab, using defined metrics • Enhancements launched and usage patterns
monitored• Improvements are introduced on an ongoing
basis
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How is relevance ranking
calculated?
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abstract author date full text journal
language type publisher subject title
citations downloads journal impact factor eigenfactor pagerank
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academic degree discipline(s) language
location previous selections search history
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broad-topic search currency exact-item search material type
narrow-topic search
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Broad-topic query
Narrow-topic query
Author-related query
Known-item query
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The match: traditional information retrieval
methods, adapted to the scholarly environment
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1
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100
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?no. of citations; no. of selections; recency; type; peer review
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1
20
100
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Academic degree, discipline
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Computer Science
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Psychology
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Mathematics
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Physics
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Author-related query, known-item query, broad-topic query…
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Before
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AfterTachycardia – Wikipedia the free encyclopediaTachycardia comes from the Greek words tachys (rapid or accelerated) and kardia (of the heart). Tachycardia typically refers to a heart rate that exceeds the normal range for a resting ...
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?ScholarRank™
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![Query Independent Scholarly Article Ranking · [2] Y. Wang et al. Ranking scientific articles by exploiting citations, authors, journals and time information. In AAAI, 2013. [3] H](https://img.pdfslide.net/doc/110x75/6051f6849c34d908f4627a35/query-independent-scholarly-article-ranking-2-y-wang-et-al-ranking-scientific.jpg)
