The approach detecting the faces can be devided into two kinds: knowledge-based methods and statistical learning-based methods.

人脸检测方法主要划分为基于知识的人脸验证方法和基于统计的学习方法。

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Unfortunately, Rational method Composer content does not convey expertise-based and learning-oriented methods, and largely ignores all other techniques, which, however, may still be used.

不幸的是，Rational Method Composer内容没有采用基于经验的且面向学习的方法，并且大规模地忽略了所有其他的技术，然而，这些技术可能仍旧在使用。

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Therefore, candidates should be based on the different characteristics of different disciplines, good at summing up, using different learning methods, knowledge must be mastered.

所以考生应该根据不同学科的不同特点，善于归纳总结，采用不同的学习方法，进行知识得掌握。

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For hepatitis C vaccine we're learning a lot from in vitro or cell-based methods."

VOA: standard.2010.02.16

In most cases, the systems involve customized algorithms based on machine-learning methods.

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