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PODS
2008
ACM
165views Database» more  PODS 2008»
14 years 8 months ago
Data exchange and schema mappings in open and closed worlds
In the study of data exchange one usually assumes an openworld semantics, making it possible to extend instances of target schemas. An alternative closed-world semantics only move...
Leonid Libkin, Cristina Sirangelo
DMSN
2009
ACM
14 years 3 months ago
FSort: external sorting on flash-based sensor devices
In long-term deployments of Wireless Sensor Networks, it is often more efficient to store sensor readings locally at each device and transmit those readings to the user only when ...
Panayiotis Andreou, Orestis Spanos, Demetrios Zein...
SIGCOMM
2009
ACM
14 years 3 months ago
SMS-based contextual web search
SMS-based web search is different from traditional web search in that the final response to a search query is limited to a very small number of bytes (typically 1-2 SMS messages...
Jay Chen, Brendan Linn, Lakshminarayanan Subramani...
ATAL
2007
Springer
14 years 2 months ago
Scaling-up shopbots: a dynamic allocation-based approach
In this paper we consider the problem of eCommerce comparison shopping agents (shopbots) that are limited by capacity constraints. In light of the phenomenal increase both in dema...
David Sarne, Sarit Kraus, Takayuki Ito
SSDBM
2003
IEEE
196views Database» more  SSDBM 2003»
14 years 2 months ago
Stream Window Join: Tracking Moving Objects in Sensor-Network Databases
The widespread use of sensor networks presents revolutionary opportunities for life and environmental science applications. Many of these applications involve continuous queries t...
Moustafa A. Hammad, Walid G. Aref, Ahmed K. Elmaga...