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PODS
2007
ACM
159views Database» more  PODS 2007»
14 years 8 months ago
Generalized hypertree decompositions: np-hardness and tractable variants
The generalized hypertree width GHW(H) of a hypergraph H is a measure of its cyclicity. Classes of conjunctive queries or constraint satisfaction problems whose associated hypergr...
Georg Gottlob, Thomas Schwentick, Zoltán Mi...
IPPS
2009
IEEE
14 years 3 months ago
On the complexity of mapping pipelined filtering services on heterogeneous platforms
In this paper, we explore the problem of mapping filtering services on large-scale heterogeneous platforms. Two important optimization criteria should be considered in such a fra...
Anne Benoit, Fanny Dufossé, Yves Robert
RSP
2007
IEEE
143views Control Systems» more  RSP 2007»
14 years 2 months ago
Heuristics for Dynamic Task Mapping in NoC-based Heterogeneous MPSoCs
Multiprocessor Systems-on-Chip (MPSoCs) is a trend in VLSI design, since they minimize the “design crisis” (gap between silicon technology and actual SoC design capacity) and ...
Ewerson Carvalho, Ney Calazans, Fernando Moraes
RTSS
2006
IEEE
14 years 2 months ago
Voice over Sensor Networks
Wireless sensor networks have traditionally focused on low duty-cycle applications where sensor data are reported periodically in the order of seconds or even longer. This is due ...
Rahul Mangharam, Anthony Rowe, Raj Rajkumar, Ryohe...
AVSS
2005
IEEE
14 years 2 months ago
Hypovigilence analysis: open or closed eye or mouth? Blinking or yawning frequency?
This paper proposes a frequency method to estimate the state open or closed of eye and mouth and to detect associated motion events such as blinking and yawning. The context of th...
Alexandre Benoit, Alice Caplier