If your site has a large number of post which are not placed in categories or tags, This plugin will help you do it automatically.
You just need to define keywords for earch categories/tags and do it schedule by cronjob or manually by click “Action now”.
* Set target keyworks for each category/tag
* Set rule for the litmit of category/tag for each post
* Set cronjob for auto category/tag by minutes, hours, days.