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IDEAS
2003
IEEE
73views Database» more  IDEAS 2003»
14 years 3 months ago
Operations on Metamodels in the Context of a UML-Based Metamodeling Architecture
In the context of information system engineering, we propose a four-layer metamodeling architecture with a comprehensive set of operations on metamodels. Our architecture enables ...
Marie-Noëlle Terrasse, George Becker, Marinet...
ICDE
2012
IEEE
203views Database» more  ICDE 2012»
12 years 6 days ago
Parameter-Free Determination of Distance Thresholds for Metric Distance Constraints
—The importance of introducing distance constraints to data dependencies, such as differential dependencies (DDs) [28], has recently been recognized. The metric distance constrai...
Shaoxu Song, Lei Chen 0002, Hong Cheng
KDD
2008
ACM
172views Data Mining» more  KDD 2008»
14 years 10 months ago
Structured metric learning for high dimensional problems
The success of popular algorithms such as k-means clustering or nearest neighbor searches depend on the assumption that the underlying distance functions reflect domain-specific n...
Jason V. Davis, Inderjit S. Dhillon
DEXAW
2002
IEEE
101views Database» more  DEXAW 2002»
14 years 2 months ago
Robust Similarity Measures for Mobile Object Trajectories
We investigate techniques for similarity analysis of spatio-temporal trajectories for mobile objects. Such kind of data may contain a great amount of outliers, which degrades the ...
Michail Vlachos, Dimitrios Gunopulos, George Kolli...
MT
2010
110views more  MT 2010»
13 years 8 months ago
Metrics for MT evaluation: evaluating reordering
Translating between dissimilar languages requires an account of the use of divergent word orders when expressing the same semantic content. Reordering poses a serious problem for s...
Alexandra Birch, Miles Osborne, Phil Blunsom