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» A Data Transformation Method Based on Schema Mapping
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CIKM
2003
Springer
15 years 9 months ago
Hierarchical graph indexing
Traffic analysis, in the context of Telecommunications or Internet and Web data, is crucial for large network operations. Data in such networks is often provided as large graphs w...
James Abello, Yannis Kotidis
PODS
2006
ACM
137views Database» more  PODS 2006»
16 years 4 months ago
Data exchange: computing cores in polynomial time
Data exchange deals with inserting data from one database into another database having a different schema. We study and solve a central computational problem of data exchange, nam...
Georg Gottlob, Alan Nash
DOLAP
2006
ACM
15 years 10 months ago
Towards a logical multidimensional model for spatial data warehousing and OLAP
Decision support systems (DSS) may be enhanced qualitatively if they are able to also deal with spatial dimensions and measures. Regardless the evident importance of using data wa...
Marcus Costa Sampaio, Andre Gomes de Sousa, Cl&aac...
IWANN
2005
Springer
15 years 10 months ago
Bias and Variance of Rotation-Based Ensembles
Abstract. In Machine Learning, ensembles are combination of classifiers. Their objective is to improve the accuracy. In previous works, we have presented a method for the generati...
Juan José Rodríguez, Carlos J. Alons...
JDCTA
2010
161views more  JDCTA 2010»
14 years 11 months ago
Selection of Wavelet Decomposition Level in Multi-Scale Sensor Data Fusion of MEMS Gyroscope
Because the characteristic of wavelet transform is multi-resolution, their unique advantage of the data model is multi-scale analysis. Then, it's widely used the Wavelet-base...
Ren Ya-fei, Ke Xi-zheng