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» Tuning query performance in mobile sensor databases
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ICDE
2008
IEEE
563views Database» more  ICDE 2008»
16 years 9 months ago
Probabilistic Verifiers: Evaluating Constrained Nearest-Neighbor Queries over Uncertain Data
In applications like location-based services, sensor monitoring and biological databases, the values of the database items are inherently uncertain in nature. An important query fo...
Reynold Cheng, Jinchuan Chen, Mohamed F. Mokbel, C...
129
Voted
JSW
2008
196views more  JSW 2008»
14 years 9 months ago
Providing Data Items with Time Constraints in Multi-Channel Broadcasting Environments
In a mobile computing system, users carrying portable devices can access database services from any location without requiring a fixed position in the networking environment. Some ...
Ding-Jung Chiang, Hwei-Jen Lin, Timothy K. Shih
VLDB
2004
ACM
134views Database» more  VLDB 2004»
15 years 2 months ago
Model-Driven Data Acquisition in Sensor Networks
Declarative queries are proving to be an attractive paradigm for interacting with networks of wireless sensors. The metaphor that “the sensornet is a database” is problematic,...
Amol Deshpande, Carlos Guestrin, Samuel Madden, Jo...
ICDE
2005
IEEE
149views Database» more  ICDE 2005»
15 years 10 months ago
Change Tolerant Indexing for Constantly Evolving Data
Index structures are designed to optimize search performance, while at the same time supporting efficient data updates. Although not explicit, existing index structures are typica...
Reynold Cheng, Yuni Xia, Sunil Prabhakar, Rahul Sh...
EWSN
2007
Springer
15 years 9 months ago
Decentralized Scattering of Wake-Up Times in Wireless Sensor Networks
Duty-cycling in wireless sensor networks (WSNs) has both beneficial effects on network lifetime and negative effects on application performance due to the inability of a sensor to ...
Alessandro Giusti, Amy L. Murphy, Gian Pietro Picc...