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» Pattern-Based Query Answering
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IS
2006
13 years 9 months ago
Processing approximate aggregate queries in wireless sensor networks
In-network data aggregation has been recently proposed as an effective means to reduce the number of messages exchanged in wireless sensor networks. Nodes of the network form an a...
Antonios Deligiannakis, Yannis Kotidis, Nick Rouss...
WWW
2009
ACM
14 years 10 months ago
Interactive search in XML data
In a traditional keyword-search system in XML data, a user composes a keyword query, submits it to the system, and retrieves relevant subtrees. In the case where the user has limi...
Guoliang Li, Jianhua Feng, Lizhu Zhou
STOC
2009
ACM
155views Algorithms» more  STOC 2009»
14 years 10 months ago
A nearly optimal oracle for avoiding failed vertices and edges
We present an improved oracle for the distance sensitivity problem. The goal is to preprocess a directed graph G = (V, E) with non-negative edge weights to answer queries of the f...
Aaron Bernstein, David R. Karger
VLDB
2007
ACM
260views Database» more  VLDB 2007»
14 years 10 months ago
Approaching the Skyline in Z Order
Given a set of multidimensional data points, skyline query retrieves a set of data points that are not dominated by any other points. This query is useful for multi-preference ana...
Ken C. K. Lee, Baihua Zheng, Huajing Li, Wang-Chie...
SIGMOD
2009
ACM
219views Database» more  SIGMOD 2009»
14 years 10 months ago
Hermes: a travel through semantics on the data web
The Web as a global information space is developing from a Web of documents to a Web of data. This development opens new ways for addressing complex information needs. Search is n...
Haofen Wang, Thomas Penin, Kaifeng Xu, Junquan Che...