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VLDB
2004
ACM
118views Database» more  VLDB 2004»
15 years 6 months ago
On the performance of bitmap indices for high cardinality attributes
It is well established that bitmap indices are efficient for read-only attributes with low attribute cardinalities. For an attribute with a high cardinality, the size of the bitma...
Kesheng Wu, Ekow J. Otoo, Arie Shoshani
WWW
2010
ACM
15 years 6 months ago
Data summaries for on-demand queries over linked data
Typical approaches for querying structured Web Data collect (crawl) and pre-process (index) large amounts of data in a central data repository before allowing for query answering....
Andreas Harth, Katja Hose, Marcel Karnstedt, Axel ...
HICSS
2002
IEEE
113views Biometrics» more  HICSS 2002»
15 years 5 months ago
Designing and Examining PC to Palm Collaboration
One trend in day-to-day computing involves moving seamlessly from large powerful workstations to small handheld devices. A second trend is continuous collaboration with colleagues...
Ivan Marsic, Allan Meng Krebs, Bogdan Dorohonceanu...
SIGMOD
2010
ACM
236views Database» more  SIGMOD 2010»
15 years 5 months ago
Differentially private aggregation of distributed time-series with transformation and encryption
We propose PASTE, the first differentially private aggregation algorithms for distributed time-series data that offer good practical utility without any trusted server. PASTE add...
Vibhor Rastogi, Suman Nath
GSN
2009
Springer
189views Sensor Networks» more  GSN 2009»
15 years 5 months ago
Deploying a Wireless Sensor Network in Iceland
A wireless sensor network deployment on a glacier in Iceland is described. The system uses power management as well as power harvesting to provide long-term environment sensing. Ad...
Kirk Martinez, Jane K. Hart, Royan Ong