4.decision engine
4.智能搜索引擎
Definition: an Internet search engine that uses information from the user in order to provide more relevant results.
定义：利用使用者的信息进行捜索以提供更多相关结果的一种网络捜索引擎。
Quotation: As part of a constant effort to improve their search engine algorithm, Bing has made a major change in what they call their decision engine. Search engine results from Bing will now include an adaptive feature... To explain this quite simply, your past search queries will be factored into current searches.
引文：他们（微软）不断努力改善捜索引擎算法的做法之一就是：必应在他们称之为智能捜索弓I擎的部分作出很大改进。必应的捜索引擎现在将包括一项可适应功能……简单地说，就是你过去捜索过的问题将会作为新捜索的要素。