下面天道小编为大家搜集整理了一篇SAT阅读素材：a learning sysstem。SAT阅读考试除了检测考生的词汇量外，还考察考生的理解及判断的综合能力。

SAT阅读考题重点考察考生的美国大学教材的快速阅读能力、理解能力及判断能力。典型的围绕文章主要观点的问题大多是：在这篇文章中作者的主要目的是什么?这篇文章主要涉及什么问题?这篇文章主要建议是什么?这篇文章总体上想要回答什么问题等。

Learning, Rule, Environment and overall planning of a learning sysstem

The task of learning from environment (what forms environment - www is one for nell) should be specified. It requires the learner (in this case, could be nell) to infer the laws of the environment in terms of its percepts (explain the percepts in details here) and actions, and use the laws to solve problems (what kind of problems?).

Based on research on problem space creation and discrimination learning, first design an approach in which exploration, rule creation and rule learning are coordinated in a single

framework. With this approach, the system Nell creates certain rules by noticing the

changes in the environment (web in our case) when actions (updating the web, linking in more info) are taken, and later refines the rules by explaining the failures of their predictions. Unlike

many other learning systems, nell treats learning and problem solving as interleaved activities, no training instance nor any concept hierarchy is necessary to start learning. Furthermore,

the approach is capable of discovering hidden features from the environment when normal discrimination process fails to make any progress.

读完每一篇SAT阅读素材，我们都要针对SAT素材想想这几个问题。平时多看一些SAT阅读素材，注意培养语感和阅读速度，对于我们大家考取一个SAT阅读高分是很有帮助的。