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» Vocabulary Hierarchy Optimization for Effective and Transfer...
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WWW
2004
ACM
14 years 7 months ago
Design of a crawler with bounded bandwidth
This paper presents an algorithm to bound the bandwidth of a Web crawler. The crawler collects statistics on the transfer rate of each server to predict the expected bandwidth use...
Michelangelo Diligenti, Marco Maggini, Filippo Mar...
DASFAA
2009
IEEE
253views Database» more  DASFAA 2009»
13 years 9 months ago
Implementing and Optimizing Fine-Granular Lock Management for XML Document Trees
Abstract. Fine-grained lock protocols with lock modes and lock granules adjusted to the various XML processing models, allow for highly concurrent transaction processing on XML tre...
Sebastian Bächle, Theo Härder, Michael P...
PODS
2006
ACM
216views Database» more  PODS 2006»
14 years 6 months ago
Cache-oblivious string B-trees
B-trees are the data structure of choice for maintaining searchable data on disk. However, B-trees perform suboptimally ? when keys are long or of variable length, ? when keys are...
Michael A. Bender, Martin Farach-Colton, Bradley C...
WWW
2008
ACM
14 years 7 months ago
Learning to rank relational objects and its application to web search
Learning to rank is a new statistical learning technology on creating a ranking model for sorting objects. The technology has been successfully applied to web search, and is becom...
Tao Qin, Tie-Yan Liu, Xu-Dong Zhang, De-Sheng Wang...
MSS
2003
IEEE
151views Hardware» more  MSS 2003»
13 years 11 months ago
Accurate Modeling of Cache Replacement Policies in a Data Grid
Caching techniques have been used to improve the performance gap of storage hierarchies in computing systems. In data intensive applications that access large data files over wid...
Ekow J. Otoo, Arie Shoshani