- 中图分类号: I1
- 语种: ENG
- 出版信息: Planet ebooks 2018 684页
- EISBN: E000000000039
- 原文访问地址:
KG评星
知识图谱评星,是一种基于用户使用的评价体系,综合图书的评论数量、引文数量、Amazon评分以及图谱网络中节点的PageRank值(即考虑相邻节点数量和重要性)等多种因素计算而得出的评价数值。星级越高,推荐值越高。CAT核心级
核心学术资源(CAR)项目作为教图公司推出的一项知识型服务,旨在打造一套科学、有效的图书评价体系,并协助用户制定相应的馆藏建设方案。CAR项目调查和分析12所世界一流大学的藏书数据,以收藏学校的数量确定书目的核心级,核心级越高,代表书目的馆藏价值越高。选取核心级在三级以上,即三校以上共藏的图书作为核心书目(CAT)。‘Christmas won’t be Christmas without any presents,’ grumbled Jo, lying on the rug. ‘It’s so dreadful to be poor!’ sighed Meg, looking down at her old dress. ‘I don’t think it’s fair for some girls to have plenty of pretty things, and other girls nothing at all,’ added little Amy, with an injured sniff. ‘We’ve got Father and Mother, and each other,’ said Beth contentedly from her corner. The four young faces on which the firelight shone brightened at the cheerful words, but darkened again as Jo said sadly, ‘We haven’t got Father, and shall not have him for a long time.’ She didn’t say ‘perhaps never,’ but each silently added it, thinking of Father far away, where the fighting was. Nobody spoke for a minute; then Meg said in an altered tone, ‘You know the reason Mother proposed not having any presents this Christmas was because it is going to be a hard winter for everyone; and she thinks we ought not to spend money for pleasure, when our men are suffering so in the army. We can’t do much, but we can make our little sacrifices, and ought to do it gladly. But I am afraid I don’t.’ And Meg shook her head, as she thought regretfully of all the pretty things she wanted.