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» Evaluating Complex Semantic Artifacts
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KCAP
2011
ACM
14 years 17 days ago
Let's agree to disagree: on the evaluation of vocabulary alignment
Gold standard mappings created by experts are at the core of alignment evaluation. At the same time, the process of manual evaluation is rarely discussed. While the practice of ha...
Anna Tordai, Jacco van Ossenbruggen, Guus Schreibe...
75
Voted
MFCS
2009
Springer
15 years 4 months ago
Branching Programs for Tree Evaluation
We introduce the tree evaluation problem, show that it is in LogDCFL (and hence in P), and study its branching program complexity in the hope of eventually proving a superlogarith...
Mark Braverman, Stephen A. Cook, Pierre McKenzie, ...
EDBT
2009
ACM
170views Database» more  EDBT 2009»
15 years 1 months ago
Efficient constraint evaluation in categorical sequential pattern mining for trajectory databases
The classic Generalized Sequential Patterns (GSP) algorithm returns all frequent sequences present in a database. However, usually a few ones are interesting from a user's po...
Leticia I. Gómez, Alejandro A. Vaisman
81
Voted
ESWS
2007
Springer
15 years 3 months ago
Extracting Social Networks Among Various Entities on the Web
Abstract. Social networks have recently attracted much attention for their importance to the Semantic Web. Several methods exist to extract social networks for people (particularly...
Jin Yingzi, Yutaka Matsuo, Mitsuru Ishizuka
PODS
2010
ACM
159views Database» more  PODS 2010»
14 years 11 months ago
On probabilistic fixpoint and Markov chain query languages
We study highly expressive query languages such as datalog, fixpoint, and while-languages on probabilistic databases. We generalize these languages such that computation steps (e....
Daniel Deutch, Christoph Koch, Tova Milo