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EDBT
2004
ACM
145views Database» more  EDBT 2004»
13 years 2 days ago
CUBE File: A File Structure for Hierarchically Clustered OLAP Cubes
Abstract. Hierarchical clustering has been proved an effective means for physically organizing large fact tables since it reduces significantly the I/O cost during ad hoc OLAP quer...
Nikos Karayannidis, Timos K. Sellis, Yannis Kouvar...
DMDW
2001
106views Management» more  DMDW 2001»
12 years 1 months ago
SISYPHUS: A Chunk-Based Storage Manager for OLAP Cubes
In this paper, we present SISYPHUS, a storage manager for data cubes that provides an efficient physical base for performing OLAP operations. On-Line Analytical Processing (OLAP) ...
Nikos Karayannidis, Timos K. Sellis
DOLAP
2003
ACM
12 years 5 months ago
Hierarchical dwarfs for the rollup cube
The data cube operator exempli´Čües two of the most important aspects of OLAP queries: aggregation and dimension hierarchies. In earlier work we presented Dwarf, a highly compress...
Yannis Sismanis, Antonios Deligiannakis, Yannis Ko...
BCSHCI
2009
12 years 1 months ago
Initial explorations into the user experience of 3D file browsing
We present an initial exploration into the usability of 3D file browsing. To explore the 3D file browsing technique design space, we analyzed the existing literature and developed...
Anamary Leal, Chadwick A. Wingrave, Joseph J. LaVi...
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