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» Query Processing and Optimization for Pictorial Query Trees
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IUI
2005
ACM
15 years 3 months ago
Task aware information access for diagnosis of manufacturing problems
Pinpoint is a promising first step towards using a rich model of task context in proactive and dynamic IR systems. Pinpoint allows a user to navigate decision tree representations...
Larry Birnbaum, Wallace J. Hopp, Seyed M. R. Irava...
SIGMOD
2005
ACM
126views Database» more  SIGMOD 2005»
15 years 10 months ago
Cost-Sensitive Reordering of Navigational Primitives
We present a method to evaluate path queries based on the novel concept of partial path instances. Our method (1) maximizes performance by means of sequential scans or asynchronou...
Carl-Christian Kanne, Matthias Brantner, Guido Moe...
VLDB
2005
ACM
134views Database» more  VLDB 2005»
15 years 3 months ago
MDL Summarization with Holes
Summarization of query results is an important problem for many OLAP applications. The Minimum Description Length principle has been applied in various studies to provide summarie...
Shaofeng Bu, Laks V. S. Lakshmanan, Raymond T. Ng
ICWE
2009
Springer
15 years 4 months ago
On Using Distributed Extended XQuery for Web Data Sources as Services
DeXIN (Distributed extended XQuery for data INtegration) integrates multiple, heterogeneous, highly distributed and rapidly changing web data sources in different formats, e.g. XML...
Muhammad Intizar Ali, Reinhard Pichler, Hong Linh ...
DKE
2007
119views more  DKE 2007»
14 years 10 months ago
Error minimization in approximate range aggregates
Histogram techniques have been used in many commercial database management systems to estimate a query result size. Recently, it has been shown that they are very effective to su...
Xuemin Lin, Qing Zhang, Yidong Yuan, Qing Liu