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192
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ICDT
2012
ACM
13 years 8 months ago
2012
ACM
We consider the problem of repairing unranked trees (e.g., XML documents) satisfying a given restriction specification R (e.g., a DTD) into unranked trees satisfying a given targ...
408
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Publication
Global Positioning System (GPS) Technology allows precise determination of location, velocity, direction, and time. The price of GPS receivers is falling rapidly and the applicatio...
180
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SIGCSE
2009
ACM
16 years 6 months ago
2009
ACM
This paper describes the integration of the Alice 3D virtual worlds environment into a diverse set of subjects in middle school, including the development of tutorials, example wo...
160
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SIGCSE
2009
ACM
16 years 6 months ago
2009
ACM
How suitable is a Python-based CS1 course as preparation for a C++-based CS2 course? After fifteen years of using C++ for both CS1 and CS2, the Computer Science Department at Mich...
183
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MOBISYS
2007
ACM
16 years 5 months ago
2007
ACM
In this work, we investigate the use of directional antennas and beam steering techniques to improve performance of 802.11 links in the context of communication between a moving v...