I wanted to tag a question with exponential-time-algorithms and I got the error-message:

Oops! Your edit couldn't be submitted because:
* 'exponential-time-algorithms' exceeds maximum tag length of 24

So, I used the far less elegant tag exponential-algorithms.

Is there a way around the restriction of maximum tag length 24?
Do you have a better suggestion for the tag exponential-algorithms? I can think of exact-algorithms, but I don't like it too much because, by definition, an algorithm gives you a(n exact) solution to your problem (in the view that approximation algorithms solve a more relaxed version of the problem).

  • 2
    $\begingroup$ I think "exact-algorithms" would be ok, too; it seems to be the standard term used in the field even though it makes little sense. $\endgroup$ Sep 6, 2010 at 17:36
  • $\begingroup$ I flagged this post for moderator attention to ask moderators to merge and synonymize [exponential-algorithms] → [exp-time-algorithms]. $\endgroup$ Dec 11, 2010 at 18:32

2 Answers 2


Assuming that the 24-character restriction cannot be lifted, how about [exp-time-algorithms]? But I am not completely sure if we really need it is really useful to have a tag for exponential-time algorithms.


How about exp-time ? this could be coupled with [algorithms], or could be coupled with cc.complexity-theory for discussions about EXP

  • $\begingroup$ I think I like that. I'll wait a bit before changing my tag in case some other suggestion gets a lot more votes. $\endgroup$ Sep 6, 2010 at 17:24
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    $\begingroup$ "exp-time" sounds a bit too much like a complexity class to me... $\endgroup$ Sep 6, 2010 at 17:38
  • $\begingroup$ @Jukka: Good point. So, maybe exp-time-algorithms is better after all. $\endgroup$ Sep 7, 2010 at 4:43
  • $\begingroup$ You could use [exponential-time] if the only concern is a possible confusion with the complexity class EXPTIME. However, imagine that someone wants to highlight questions about exponential-time algorithms by setting “Interesting Tags.” The catch is that it is not possible to set a combination of tags as “interesting.” Honestly speaking, though, I cannot imagine that anyone is interested in exponential-time algorithms without being interested in algorithms in general, hence my question about the usefulness of the tag. $\endgroup$ Sep 7, 2010 at 12:39

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