4273 search results - page 278 / 855 » Improving proactive information systems |
174
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ICC
2007
IEEE
16 years 29 days 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...
148
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ICDCS
1999
IEEE
15 years 11 months ago
1999
IEEE
Existing workflow management systems encapsulate the data and behavior of a process within its execution scope, preventing other processes from accessing this information until th...
143
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CHI
2007
ACM
16 years 7 months ago
2007
ACM
This article is concerned with the encouragement and promotion of the use of buses in Edinburgh, especially among visually impaired users and tourists / migrant workers. The repor...
175
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ICMCS
1999
IEEE
15 years 11 months ago
1999
IEEE
The START system responds to natural language queries with answers in text, pictures, and other media. START's sentence-level natural language parsing relies on a number of m...
205
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ASIAMS
2009
IEEE
16 years 1 months ago
2009
IEEE
Cognitive radio has the ability to sense the environment and adapt its behavior to optimize communication features, such as quality of service in the presence of interference and ...