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162
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CIKM
2009
Springer
16 years 29 days ago
2009
Springer
We are building an interactive, visual text analysis tool that aids users in analyzing a large collection of text. Unlike existing work in text analysis, which focuses either on d...
157
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PKDD
2009
Springer
16 years 28 days ago
2009
Springer
In this paper we introduce graph-evolution rules, a novel type of frequency-based pattern that describe the evolution of large networks over time, at a local level. Given a sequenc...
170
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ICRA
2008
IEEE
16 years 24 days ago
2008
IEEE
— In this work, we have extended the concept of constrained motion control of robots to surgical tasks that require multiple robots. We present virtual fixtures to guide the mot...
176
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AINA
2007
IEEE
16 years 22 days ago
2007
IEEE
Abstract— A wireless sensor network (WSN) is energy constrained, and the extension of its lifetime is one of the most important issues in its design. Usually, a WSN collects a la...
178
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CISS
2007
IEEE
16 years 22 days ago
2007
IEEE
— We consider a sensor network in which the sensors communicate at will when they have something to report, without prior coordination with other sensors or with data collection ...