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170
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ICALP
2009
Springer
16 years 4 months ago
2009
Springer
We develop new structural results for apex-minor-free graphs and show their power by developing two new approximation algorithms. The first is an additive approximation for colorin...
145
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ICALP
2009
Springer
16 years 4 months ago
2009
Springer
We examine several online matching problems, with applications to Internet advertising reservation systems. Consider an edge-weighted bipartite graph G, with partite sets L, R. We...
235
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VLDB
2009
ACM
16 years 4 months ago
2009
ACM
We address the problem of providing privacypreserving search over distributed accesscontrolled content. Indexed documents can be easily reconstructed from conventional (inverted) ...
204
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SIGMOD
2009
ACM
16 years 4 months ago
2009
ACM
Testing and debugging database system applications is often challenging and time consuming. A database tester (or DB tester for short) has to detect a problem, determine why it ha...
229
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SIGMOD
2009
ACM
16 years 4 months ago
2009
ACM
SQL tuning--the attempt to improve a poorly-performing execution plan produced by the database query optimizer-is a critical aspect of database performance tuning. Ironically, as ...