8933 search results - page 97 / 1787 » Usability over time |
168
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DASFAA
2009
IEEE
16 years 6 days ago
2009
IEEE
Abstract. Continuous spatial queries retrieve a set of time-varying objects continuously during a given period of time. However, monitoring moving objects to maintain the correctne...
185
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SSDBM
2009
IEEE
16 years 3 days ago
2009
IEEE
Scientific experiments produce large volumes of data represented as complex objects that describe independent events such as particle collisions. Scientific analyses can be express...
141
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ICC
2007
IEEE
15 years 11 months ago
2007
IEEE
— Current OFDM systems assume the channel is not time varying within one OFDM frame, and use channel estimates obtained from preamble or pilots for data symbols within the same f...
130
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GLOBECOM
2006
IEEE
15 years 11 months ago
2006
IEEE
—The current best-effort Internet does not guarantee the bandwidth availability between a receiver and a sender, and so renders any quality-of-service (QoS) control difficult, if...
174
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ICDE
2005
IEEE
15 years 11 months ago
2005
IEEE
Many location-based applications require constant monitoring of k-nearest neighbor (k-NN) queries over moving objects within a geographic area. Existing approaches to this problem...