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» The existence of k-radius sequences
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FSTTCS
2009
Springer
14 years 3 months ago
Covering of ordinals
The paper focuses on the structure of fundamental sequences of ordinals smaller than ε0. A first result is the construction of a monadic second-order formula identifying a given ...
Laurent Braud
CANDC
2009
ACM
14 years 3 months ago
Subliminal wiretapping
Subliminal Wiretapping is a subtly interactive artwork that utilizes random number generation modified through mindmatter effects to supply a continuous stream of words. Frequent,...
Shawn Lawson
MOBICOM
2009
ACM
14 years 3 months ago
A quorum-based framework for establishing control channels in dynamic spectrum access networks
Establishing a control channel for medium access control is a challenging problem in multi-channel and dynamic spectrum access (DSA) networks. In the design of multi-channel MAC p...
Kaigui Bian, Jung Min Park, Ruiliang Chen
MOBICOM
2009
ACM
14 years 3 months ago
Lifetime and coverage guarantees through distributed coordinate-free sensor activation
Wireless Sensor Networks are emerging as a key sensing technology, with diverse military and civilian applications. In these networks, a large number of sensors perform distribute...
Gaurav S. Kasbekar, Yigal Bejerano, Saswati Sarkar
FOCS
2008
IEEE
14 years 3 months ago
Size Bounds and Query Plans for Relational Joins
Relational joins are at the core of relational algebra, which in turn is the core of the standard database query language SQL. As their evaluation is expensive and very often domi...
Albert Atserias, Martin Grohe, Dániel Marx