Re:why use the job 'itemIDIndex' to convert the itemid to index?

[myn]

because vector or martix need int type





At 2011-09-20 18:32:46,"张玉东" <zhangyud...@vancl.cn> wrote:
>I am trouble with this problem, if two itemids are mapped to the same index, 
>then how to compute the similarity between them?
>
>