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» SNPs Problems, Complexity, and Algorithms
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122
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WWW
2008
ACM
16 years 4 months ago
Externalities in online advertising
Most models for online advertising assume that an advertiser's value from winning an ad auction, which depends on the clickthrough rate or conversion rate of the advertisemen...
Arpita Ghosh, Mohammad Mahdian
STOC
2012
ACM
196views Algorithms» more  STOC 2012»
13 years 6 months ago
Time-space tradeoffs in resolution: superpolynomial lower bounds for superlinear space
We give the first time-space tradeoff lower bounds for Resolution proofs that apply to superlinear space. In particular, we show that there are formulas of size N that have Reso...
Paul Beame, Christopher Beck, Russell Impagliazzo
226
Voted
PODS
2009
ACM
122views Database» more  PODS 2009»
16 years 4 months ago
Satisfiability of downward XPath with data equality tests
In this work we investigate the satisfiability problem for the logic XPath( , , =), that includes all downward axes as well as equality and inequality tests. We address this probl...
Diego Figueira
127
Voted
SEMWEB
2009
Springer
15 years 10 months ago
Graph-Based Ontology Construction from Heterogenous Evidences
Abstract. Ontologies are tools for describing and structuring knowledge, with many applications in searching and analyzing complex knowledge bases. Since building them manually is ...
Christoph Böhm, Philip Groth, Ulf Leser
ML
2000
ACM
103views Machine Learning» more  ML 2000»
15 years 3 months ago
Phase Transitions in Relational Learning
One of the major limitations of relational learning is due to the complexity of verifying hypotheses on examples. In this paper we investigate this task in light of recent publishe...
Attilio Giordana, Lorenza Saitta