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132
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EUC
2006
Springer
15 years 7 months ago
Cross-Layer Duty Cycle Scheduling with Data Aggregation Routing in Wireless Sensor Networks
Abstract. Well-scheduled communications, in conjunction with the aggregation of data reduce the energy waste on idle listening and redundant transmissions. In addition, the adjusta...
Yean-Fu Wen, Frank Yeong-Sung Lin
SIGMOD
1997
ACM
180views Database» more  SIGMOD 1997»
15 years 7 months ago
Online Aggregation
Aggregation in traditional database systems is performed in batch mode: a query is submitted, the system processes a large volume of data over a long period of time, and, eventual...
Joseph M. Hellerstein, Peter J. Haas, Helen J. Wan...
137
Voted
EDBT
2008
ACM
137views Database» more  EDBT 2008»
16 years 3 months ago
Optimizing away joins on data streams
Abstract. Monitoring aggregates on IP traffic data streams is a compelling application for data stream management systems. Often, such streaming aggregation queries involve joining...
Lukasz Golab, Theodore Johnson, Nick Koudas, Dives...
138
Voted
OTM
2007
Springer
15 years 9 months ago
Leveraging the Expressivity of Grounded Conjunctive Query Languages
We present a pragmatic extension of a Semantic Web query language (including so-called grounded conjunctive queries) with a termination safe functional expression language. This ad...
Alissa Kaplunova, Ralf Möller, Michael Wessel
137
Voted
ECIR
2011
Springer
14 years 7 months ago
Learning Models for Ranking Aggregates
Aggregate ranking tasks are those where documents are not the final ranking outcome, but instead an intermediary component. For instance, in expert search, a ranking of candidate ...
Craig Macdonald, Iadh Ounis