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Ranking of Database Query Results Nitesh Maan, Arujn Saraswat, Nishant Kapoor
Introduction ,[object Object],[object Object]
Ranking and databases ,[object Object],[object Object]
[object Object]
[object Object],[object Object],[object Object]
The Empty Answers Problem ,[object Object],[object Object]
Automated Ranking Functions ,[object Object],[object Object]
Automated Ranking functions for the ‘Empty Answers Problem’ ,[object Object],[object Object],[object Object]
IDF Similarity ,[object Object]
IDF Similarity, formal definition ,[object Object],[object Object],[object Object],[object Object],[object Object]
QF Similarity – leveraging workloads ,[object Object],[object Object]
QFIDF Similarity ,[object Object],[object Object]
Breaking ties…. ,[object Object],[object Object],[object Object]
Many Answers Problem ,[object Object],[object Object],[object Object]
Basic Approach ,[object Object],[object Object]
Ranking function for Many Answers Problem ,[object Object],[object Object],[object Object]
Ranking Function: Adaptation of PIR Models for Structured Data ,[object Object]
Problem in adapting this approach ,[object Object],[object Object],[object Object]
The ranking formula ,[object Object],[object Object],[object Object],[object Object]
Architecture of Ranking System Detailed Architecture of the Ranking System
Implementation ,[object Object],[object Object],[object Object]
Implementation ,[object Object],[object Object]
The Index Module ,[object Object],[object Object],[object Object],[object Object]
Query Processing Component ,[object Object],[object Object]
Space Requirements ,[object Object],[object Object],[object Object]
What’s Next….. ,[object Object],[object Object]

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