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Many applications in the field of scientific computing - such as computational biology, computational linguistics, and others - depend on Machine Learning algorithms to provide important core functionality to support solutions in the particular problem domains. However, it is difficult to test such applications because often there is no "test oracle" to indicate what the correct output should...
Python is a powerful dynamically typed programming language. Dynamic typing brings great flexibility for programming. However, lack of static type checking, it is hard to detect some bugs before run time. We present a constraint framework based on Pythonpsilas structural equivalence type system. The framework does not introduce any new language features, thus without losing benefits of Pythonpsilas...
Software evolution is an important activity in software life cycle. The Web application is very different from traditional software in design and composition. It needs maintained more frequently. So the automatic evolution support is a critical part in Web engineering. This paper uses Markov chain to model Web userspsila browser behavior by statistic analysis of Web log. And transition probability...
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