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In the process of software evolution, software change information can help software developers and system analysts to get a better understanding of differential part of software. In this paper, we construct different versions of source code into abstract syntax trees, and use an improved tree matching algorithm which combines multiple string matching algorithms, bilateral best match strategy and predicate...
After analyzing the curvature expression, the inflection points were given by the known planar cubic Bezier control polygon information. Based on that, we proposed an algorithm that can quickly and accurately obtain the shape characteristic points of curve. Experimental results show that the algorithm is rapid, accurate, and robust.
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