2008 Final Year Project – 1st Term Report - The Chinese University ...

Department of Computer Science and Engineering, CUHK
2007 – 2008 Final Year Project – 1st Term Report
We have chosen SWAB – Sliding Windows And Bottom-up to implement, a
mixture of sliding windows and bottom-up approaches. This is proven to be more
accurate and efficient than some existing algorithms in [13].
The algorithm begins by first initializing the buffer size such that 5 to 6 segments
can be created. Data points are taken into the buffer continuously, and bottom-up is
applied in the buffer. In an iteration, the leftmost segment is “reported” and will not be
included in the buffer anymore. The process is repeated until the whole curve is
approximated.
Fig 3.3 Flow chart showing how PLA is applied on the curve of Fig 3.2(a)
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