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109
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DAM
2006
15 years 4 months ago
2006
Many oil wells in Brazilian onshore fields rely on artificial lift methods. Maintenance services such as cleaning, reinstatement, stimulation and others are essential to these wel...
121
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DAM
2006
15 years 4 months ago
2006
We propose the concept of fine-grained forward-secure signature schemes. Such signature schemes not only provide non-repudiation w.r.t. past time periods the way ordinary forward-...
118
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DATAMINE
2006
15 years 4 months ago
2006
Data visualization plays a crucial role in identifying interesting patterns in exploratory data analysis. Its use is, however, made difficult by the large number of possible data p...
130
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DEBU
2006
15 years 4 months ago
2006
Storage virtualization in modern storage systems allows variability in the number of "physical" disks supporting a single "virtual" disk. In practice, IO workl...
131
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DSP
2006
15 years 4 months ago
2006
In this paper we describe a method for simultaneously estimating the direction of arrival (DOA) of the signal along with its unknown frequency. In a typical DOA estimation problem...