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SIGMOD
2007
ACM
165views Database» more  SIGMOD 2007»
15 years 9 months ago
Sharing aggregate computation for distributed queries
An emerging challenge in modern distributed querying is to efficiently process multiple continuous aggregation queries simultaneously. Processing each query independently may be i...
Ryan Huebsch, Minos N. Garofalakis, Joseph M. Hell...
SIGMOD
2008
ACM
206views Database» more  SIGMOD 2008»
15 years 9 months ago
Ad-hoc aggregations of ranked lists in the presence of hierarchies
A variety of web sites and web based services produce textual lists at varying time granularities ranked according to several criteria. For example, Google Trends produces lists o...
Nilesh Bansal, Sudipto Guha, Nick Koudas
CORR
2010
Springer
180views Education» more  CORR 2010»
14 years 9 months ago
Dependability in Aggregation by Averaging
Abstract. Aggregation is an important building block of modern distributed applications, allowing the determination of meaningful properties (e.g. network size, total storage capac...
Paulo Jesus, Carlos Baquero, Paulo Sérgio A...
SIGMETRICS
2005
ACM
110views Hardware» more  SIGMETRICS 2005»
15 years 3 months ago
Empirical evaluation of multi-level buffer cache collaboration for storage systems
To bridge the increasing processor-disk performance gap, buffer caches are used in both storage clients (e.g. database systems) and storage servers to reduce the number of slow di...
Zhifeng Chen, Yan Zhang, Yuanyuan Zhou, Heidi Scot...
VTC
2010
IEEE
116views Communications» more  VTC 2010»
14 years 8 months ago
Downlink Transmission in Multi-Carrier Systems with Reduced Feedback
— in this paper we address the problem of reducing the feedback for the downlink transmission in multi-carrier systems. In these systems multiple Component Carriers (CCs) are agg...
Yuanye Wang, Klaus I. Pedersen, Troels B. Sø...