Sciweavers

132
Voted
DAWAK
2009
Springer
15 years 5 months ago
What Is Spatio-Temporal Data Warehousing?
Abstract. In the last years, extending OLAP (On-Line Analytical Processing) systems with spatial and temporal features has attracted the attention of of the GIS (Geographic Informa...
Alejandro A. Vaisman, Esteban Zimányi
112
Voted
DAWAK
2009
Springer
15 years 7 months ago
Dynamic Clustering-Based Estimation of Missing Values in Mixed Type Data
The appropriate choice of a method for imputation of missing data becomes especially important when the fraction of missing values is large and the data are of mixed type. The prop...
Vadim V. Ayuyev, Joseph Jupin, Philip W. Harris, Z...
DAWAK
2009
Springer
14 years 10 months ago
BitCube: A Bottom-Up Cubing Engineering
Enhancing on line analytical processing through efficient cube computation plays a key role in Data Warehouse management. Hashing, grouping and mining techniques are commonly used ...
Alfredo Ferro, Rosalba Giugno, Piera Laura Puglisi...
111
Voted
DAWAK
2009
Springer
15 years 5 months ago
Mining Violations to Relax Relational Database Constraints
Frequent constraint violations on the data stored in a database may suggest that the semantics of the represented reality is changing. In this work we propose a methodology and a t...
Mirjana Mazuran, Elisa Quintarelli, Rosalba Rossat...
DAWAK
2009
Springer
15 years 4 months ago
Skyline View: Efficient Distributed Subspace Skyline Computation
Skyline queries have gained much attention as alternative query semantics with pros (e.g.low query formulation overhead) and cons (e.g.large control over result size). To overcome ...
Jinhan Kim, Jongwuk Lee, Seung-won Hwang
Information Technology
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