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112
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CHI
2005
ACM
16 years 7 months ago
2005
ACM
This paper describes cell phone text messaging during the 2004 US Democratic and Republican National Conventions by protesters using TXTmob ? a text-message broadcast system devel...
253
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SIGMOD
2008
ACM
16 years 7 months ago
2008
ACM
We present HERMES, a prototype system based on a powerful query language for trajectory databases, which enables the support of aggregative Location-Based Services (LBS). The key ...
142
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PODS
2006
ACM
16 years 6 months ago
2006
ACM
A k-set structure over data streams is a bounded-space data structure that supports stream insertion and deletion operations and returns the set of (item, frequency) pairs in the s...
162
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IROS
2009
IEEE
16 years 1 months ago
2009
IEEE
Abstract— In this paper we present a novel approach to estimating the trajectory of a robot by means of inexpensive passive RFID tags and odometry in unknown environments. We sho...
139
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ICC
2008
IEEE
16 years 1 months ago
2008
IEEE
Abstract—A person usually carries multiple authentication tokens in the form of various cards to access services electronically. Often the service outlets are equipped with a str...