578 search results - page 71 / 116 » The Importance of Aggregation |
SIGMOD
2008
ACM
14 years 7 months ago
2008
ACM
In wireless sensor networks (WSNs), energy consumption and data quality are two important issues due to limited energy resources and the need for accurate data. In this scenario, i...
SIGMOD
2006
ACM
14 years 7 months ago
2006
ACM
Monitoring data streams in a distributed system is the focus of much research in recent years. Most of the proposed schemes, however, deal with monitoring simple aggregated values...
PODS
2002
ACM
14 years 7 months ago
2002
ACM
Data Warehousing and OLAPapplications typically view data as having multiple logical dimensions e.g., product, location with natural hierarchies de ned on each dimension. OLAP que...
EDBT
2004
ACM
14 years 7 months ago
2004
ACM
In recent years, privacy preserving data mining has become an important problem because of the large amount of personal data which is tracked by many business applications. In many...
SAC
2009
ACM
14 years 2 months ago
2009
ACM
Online feedback-based rating systems are gaining popularity. Dealing with collaborative unfair ratings in such systems has been recognized as an important but difficult problem. T...