17329 search results - page 2990 / 3466 » Improved non-approximability results |
207
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TON
2008
15 years 7 months ago
2008
This paper exploits the tradeoff between data quality and energy consumption to extend the lifetime of wireless sensor networks. To obtain an aggregate form of sensor data with pre...
183
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TPDS
2008
15 years 7 months ago
2008
Communication is a primary source of energy consumption in wireless sensor networks. Due to resource constraints, the sensor nodes may not have enough energy to report every readin...
191
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TPDS
2008
15 years 7 months ago
2008
Queue length oscillation at a congested link causes many undesirable properties such as large delay jitter, underutilization of the link and packet drops in burst. The main reason ...
175
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JIS
2007
15 years 7 months ago
2007
Argues that metrics can be generated from search transactional Web logs that can help evaluate search engine effectiveness. Search logs from the BBC Website were analysed and metr...
203
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TRANSCI
2008
15 years 7 months ago
2008
Abstract. We present a new model for a strategic locomotive scheduling problem arising at the Deutsche Bahn AG. The model is based on a multi-commodity min-cost flow formulation th...