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» Querying Semi-Structured Data
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ICDT
2009
ACM
130views Database» more  ICDT 2009»
16 years 7 months ago
Towards a theory of search queries
The need to manage diverse information sources has triggered the rise of very loosely structured data models, known as "dataspace models." Such information management sy...
George H. L. Fletcher, Jan Van den Bussche, Dirk V...
SIGMOD
2003
ACM
127views Database» more  SIGMOD 2003»
16 years 6 months ago
Cache-and-Query for Wide Area Sensor Databases
Webcams, microphones, pressure gauges and other sensors provide exciting new opportunities for querying and monitoring the physical world. In this paper we focus on querying wide ...
Amol Deshpande, Suman Kumar Nath, Phillip B. Gibbo...
VLDB
2005
ACM
109views Database» more  VLDB 2005»
16 years 7 months ago
Model-based approximate querying in sensor networks
Abstract Declarative queries are proving to be an attractive paradigm for interacting with networks of wireless sensors. The metaphor that "the sensornet is a database" i...
Amol Deshpande, Carlos Guestrin, Samuel Madden, Jo...
ICDE
2008
IEEE
395views Database» more  ICDE 2008»
17 years 6 months ago
PermJoin: An Efficient Algorithm for Producing Early Results in Multi-join Query Plans
This paper introduces an efficient algorithm for Producing Early Results in Multi-join query plans (PermJoin, for short). While most previous research focuses only on the case of ...
Justin J. Levandoski, Mohamed E. Khalefa, Mohamed ...
KDD
2005
ACM
177views Data Mining» more  KDD 2005»
16 years 7 months ago
Query chains: learning to rank from implicit feedback
This paper presents a novel approach for using clickthrough data to learn ranked retrieval functions for web search results. We observe that users searching the web often perform ...
Filip Radlinski, Thorsten Joachims