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» Answering Queries using Humans, Algorithms and Databases
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GIS
2009
ACM
16 years 7 months ago
PROS: A Peer-to-Peer System for Location Privacy Protection on Road Networks
The k-anonymity technique is widely used to provide location privacy protection for accessing location-based services (LBS), i.e., the exact location of a query initiator is cloak...
Jie Bao 0003, Haiquan Chen, Wei-Shinn Ku
SIGMOD
2012
ACM
202views Database» more  SIGMOD 2012»
13 years 9 months ago
MCJoin: a memory-constrained join for column-store main-memory databases
There exists a need for high performance, read-only mainmemory database systems for OLAP-style application scenarios. Most of the existing works in this area are centered around t...
Steven Keith Begley, Zhen He, Yi-Ping Phoebe Chen
SIGMOD
2008
ACM
162views Database» more  SIGMOD 2008»
16 years 6 months ago
Event queries on correlated probabilistic streams
A major problem in detecting events in streams of data is that the data can be imprecise (e.g. RFID data). However, current state-ofthe-art event detection systems such as Cayuga ...
Christopher Ré, Dan Suciu, Julie Letchner, ...
SSDBM
1999
IEEE
140views Database» more  SSDBM 1999»
15 years 11 months ago
An Infrastructure for Scalable Parallel Multidimensional Analysis
Multidimensional Analysis in On-Line Analytical Processing (OLAP), and Scientific and statistical databases (SSDB) use operations requiring summary information on multi-dimensiona...
Sanjay Goil, Alok N. Choudhary
SIGMOD
2008
ACM
158views Database» more  SIGMOD 2008»
16 years 6 months ago
Column-stores vs. row-stores: how different are they really?
There has been a significant amount of excitement and recent work on column-oriented database systems ("column-stores"). These database systems have been shown to perfor...
Daniel J. Abadi, Samuel Madden, Nabil Hachem