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» Adaptive Selectivity Estimation Using Query Feedback
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DPD
2010
153views more  DPD 2010»
14 years 9 months ago
Cardinality estimation and dynamic length adaptation for Bloom filters
Abstract Bloom filters are extensively used in distributed applications, especially in distributed databases and distributed information systems, to reduce network requirements and...
Odysseas Papapetrou, Wolf Siberski, Wolfgang Nejdl
ICDE
2005
IEEE
119views Database» more  ICDE 2005»
16 years 1 months ago
Data Triage: An Adaptive Architecture for Load Shedding in TelegraphCQ
Many of the data sources used in stream query processing are known to exhibit bursty behavior. Data in a burst often has different characteristics than steady-state data, and ther...
Frederick Reiss, Joseph M. Hellerstein
USAB
2010
14 years 10 months ago
An Experimental Investigation of the Akamai Adaptive Video Streaming
Akamai oers the largest Content Delivery Network (CDN) service in the world. Building upon its CDN, it recently started to offer High Denition (HD) video distribution using HTTP-...
Luca De Cicco, Saverio Mascolo
TREC
2007
15 years 29 days ago
Query and Document Models for Enterprise Search
: We describe our participation in the TREC 2007 Enterprise track and detail our language modeling-based approaches. For document search, our focus was on estimating a mixture mode...
Krisztian Balog, Katja Hofmann, Wouter Weerkamp, M...
VLDB
2001
ACM
190views Database» more  VLDB 2001»
15 years 4 months ago
LEO - DB2's LEarning Optimizer
Most modern DBMS optimizers rely upon a cost model to choose the best query execution plan (QEP) for any given query. Cost estimates are heavily dependent upon the optimizer’s e...
Michael Stillger, Guy M. Lohman, Volker Markl, Mok...