本文分析了信息函数、项目信息函数、评分信息函数等IRT中的重要概念的意义及其之间的联系。

This paper analyses the meaning of the concepts in IRT such as information, item information function, scoring information function and their relations.

youdao

Slope - One：非常快速简单的基于项目的推荐方法，需要使用用户的评分信息(而不仅仅是布尔型的首选项)。

Slope-One: a very fast and simple item-based recommendation approach applicable when users have given ratings (and not just Boolean preferences).

youdao

The worry is that those of us who are harder graders than average, if the information were published, would feel guilty and sort of ease up on our grading.

他们担心的是，我们这些更严格的评分者，在这类信息发表后，会因为内疚而稍稍把评分提高一些。

耶鲁公开课 - 死亡课程节选