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January 27, 2010

上周末去看望多年不见的导师,在导师家吃brunch。席间话题就聊到了最近几年计算机的发展,导师虽然不是专攻互联网这块的,但是计算机科学里面,很多东西都是相通的。其实科学里面的很多分支也是相通的,导师当年那个著名的算法,就是把经济学的模型引入计算机科学的一个例子。

我们先是说到Kindle,amazon给系里的新一届研究生,都送了kindle(我读书的时候,只有微软送软件,实在是杯具),然后让学生们反馈意见。反馈的结果很好玩,除了一般说的,kindle上面看教科书很好(美国的教科书又厚又贵),有人抱怨,说kindle上面看书,不能给书做标记,比如用荧光笔标出关键句子,当然kindle的一大好处,是可以直接搜索关键词,而不必翻到书的最后去找索引。给网页做高亮标记的事情,在互联网泡沫的时候也有公司做过,后来用处不大就消失了,但是这个想法一直流传了下来。

后来话题转到了长尾上面,说起netflix搞的那个推荐引擎的比赛,把用户对电影的评论数据公布出来让大家用。虽然数据里面关于用户的隐私部分都已经被抹去,但是还是有研究人员利用这些数据,加上网络上面其他的公开数据,找出了某些评论的作者姓名。其中一个同性恋母亲(这两个词放在一起有点拗口),只写了8部电影的影评,就被发现了。为此还有一桩官司。

说起这个,我们都感叹每个人是如此的不同。如果给了足够多的选择,我们会分布到各个坐标,连在一起,就是一条长长的尾巴。

6 Comments »

  1. 这个。。。你是哪个学校的啊?还有kindle送。。。

    Comment by boboyang — January 31, 2010 @ 2:59 am

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