许多服务类别很可能需要相同类型的请求处理，因此理想情况下，您需要根据策略执行服务处理，而不是将其编码到每个请求中。

There are likely to be categories of service that require the same types of request handling so ideally, you want to impose request handling based on policies rather than code it into each request.

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输出编码是解决多类别分类问题的一般性框架。

Output coding is a general framework for solving multiclass problems.

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你可以分章节、信息类别和其他有帮助的方法来进行编码。

You can code by chapter, type of information, or any way that helps you.

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