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» Decomposition behavior in aggregated data sets
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MSS
2011
IEEE
191views Hardware» more  MSS 2011»
8 years 2 months ago
Decomposition behavior in aggregated data sets
Sarah Berube, Karl-Dieter Crisman
MOBIHOC
2015
ACM
3 years 3 months ago
On the Decomposition of Cell Phone Activity Patterns and their Connection with Urban Ecology
The goal of this paper is to infer features of urban ecology (i.e., social and economic activities, and social interaction) from spatiotemporal cell phone activity data. We presen...
Blerim Cici, Minas Gjoka, Athina Markopoulou, Cart...
SIGMOD
2009
ACM
171views Database» more  SIGMOD 2009»
9 years 7 months ago
Secure outsourced aggregation via one-way chains
We consider the Outsourced Aggregation model, where sensing services outsource their sensor data collection and aggregation tasks to third-party service providers called aggregato...
Suman Nath, Haifeng Yu, Haowen Chan
VLDB
1999
ACM
159views Database» more  VLDB 1999»
8 years 11 months ago
Aggregation Algorithms for Very Large Compressed Data Warehouses
Many efficient algorithms to compute multidimensional aggregation and Cube for relational OLAP have been developed. However, to our knowledge, there is nothing to date in the lite...
Jianzhong Li, Doron Rotem, Jaideep Srivastava
SIGMOD
1999
ACM
181views Database» more  SIGMOD 1999»
8 years 11 months ago
Approximate Computation of Multidimensional Aggregates of Sparse Data Using Wavelets
Computing multidimensional aggregates in high dimensions is a performance bottleneck for many OLAP applications. Obtaining the exact answer to an aggregation query can be prohibit...
Jeffrey Scott Vitter, Min Wang
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