Is it good to generate dynamic keywords every time when page loaded?(SEO)

For an example generate 10 random keywords from web content.
Thanks..

UPDATED. For SEO.

I'm assuming you mean for display ...

The only advantage I can think of is that search engines might possibly go "This page is updated frequently, we should check it more often", maybe. I'm not up enough on the latest search engine workings to say if this would actually work or not. I wouldn't trust it to.

Disadvantages depend on usage, but I can't picture any scenario where it's immensely helpful to be "random". If you better describe the reasoning that led you to this conclusion, we can tell you whether it's right or not. My gut feeling however is ... no. If you want to display summary data, then "random" shouldn't fit into the equation, or at least, not at the top level. You should first filter the content based on some useful criteria, then apply random at the last step if necessary.

Example Process:

1. Filter out words on the stop list (if, is, you, etc).
2. Count occurences of words, prefer words with high occurence counts.
3. Prefer words which aren't featured prominently in other content items.
4. If there are more than 10 words remaining, randomly select 10 from the better scorers.

Keywords for this post: I, of, is, it, to, but, you, on, we, if.