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DOLAP
2003
ACM
14 years 1 months ago
Hierarchical dwarfs for the rollup cube
The data cube operator exemplifies 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...
MIR
2006
ACM
157views Multimedia» more  MIR 2006»
14 years 2 months ago
Generating summaries and visualization for large collections of geo-referenced photographs
We describe a framework for automatically selecting a summary set of photos from a large collection of geo-referenced photographs. Such large collections are inherently difficult ...
Alexander Jaffe, Mor Naaman, Tamir Tassa, Marc Dav...
ACSAC
2008
IEEE
14 years 2 months ago
Defending Against Attacks on Main Memory Persistence
Main memory contains transient information for all resident applications. However, if memory chip contents survives power-off, e.g., via freezing DRAM chips, sensitive data such a...
William Enck, Kevin R. B. Butler, Thomas Richardso...
MMSEC
2004
ACM
104views Multimedia» more  MMSEC 2004»
14 years 1 months ago
Key-assignment strategies for CPPM
CSS, the first system to protect multimedia content on the new DVD medium failed badly, because both its encryption algorithm and its key management could easily be broken. A new ...
André Adelsbach, Jörg Schwenk
MOBISYS
2008
ACM
14 years 7 months ago
Micro power management of active 802.11 interfaces
Wireless interfaces are major power consumers on mobile systems. Considerable research has improved the energy efficiency of elongated idle periods or created more elongated idle ...
Jiayang Liu, Lin Zhong