You can see this in the number and names of methods in the solution driven by TDD. Here are the methods in the final version of the TDD perfect-number categorizer
在 TDD 驱动的解决方案中,方法的数量和名称反映了这种思想。
This paper introduces the design and implementation of the Chinese text categorizer based on the fuzzy recognition and the extraction of the characteristic vector with the vector space model.