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VLDB
2007
ACM
103views Database» more  VLDB 2007»
16 years 6 months ago
On the Production of Anorexic Plan Diagrams
A "plan diagram" is a pictorial enumeration of the execution plan choices of a database query optimizer over the relational selectivity space. We have shown recently tha...
Harish D., Pooja N. Darera, Jayant R. Haritsa
SIGMOD
2007
ACM
121views Database» more  SIGMOD 2007»
16 years 6 months ago
Execution strategies for SQL subqueries
Optimizing SQL subqueries has been an active area in database research and the database industry throughout the last decades. Previous work has already identified some approaches ...
César A. Galindo-Legaria, Milind Joshi, Mos...
VLDB
2005
ACM
126views Database» more  VLDB 2005»
15 years 11 months ago
Consistently Estimating the Selectivity of Conjuncts of Predicates
Cost-based query optimizers need to estimate the selectivity of conjunctive predicates when comparing alternative query execution plans. To this end, advanced optimizers use multi...
Volker Markl, Nimrod Megiddo, Marcel Kutsch, Tam M...
WEBI
2010
Springer
15 years 4 months ago
Expertise Matching via Constraint-Based Optimization
Abstract--Expertise matching, aiming to find the alignment between experts and queries, is a common problem in many real applications such as conference paper-reviewer assignment, ...
Wenbin Tang, Jie Tang, Chenhao Tan
WINE
2007
Springer
151views Economy» more  WINE 2007»
16 years 11 days ago
Computing Optimal Bundles for Sponsored Search
A context in sponsored search is additional information about a query, such as the user’s age, gender or location, that can change an advertisement’s relevance or an advertise...
Arpita Ghosh, Hamid Nazerzadeh, Mukund Sundararaja...