# Talk:Tree automaton

WikiProject Computer science (Rated C-class, Mid-importance)
This article is within the scope of WikiProject Computer science, a collaborative effort to improve the coverage of Computer science related articles on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.
C  This article has been rated as C-Class on the project's quality scale.
Mid  This article has been rated as Mid-importance on the project's importance scale.

## Untitled comment

This page clearly lacks examples —Preceding unsigned comment added by 129.199.158.42 (talk) 14:36, 8 February 2010 (UTC)

## Untitled comment

In the definition of top-down and bottom up, both are defined as ${\displaystyle (Q,\Gamma ,q_{0},\delta ,F).}$ but the ${\displaystyle \Gamma }$ symbol is never defined.

I wonder why. I suppose ${\displaystyle \Gamma }$ must be the alphabet of symbols over which the tree automaton is defined. Moreover, the definition given in this page doesn't seem to be consistent with the one given in the TATA link that seems to be the reference. If nobody objects, I will edit this page in a week to update the definitions to those given in Chapter 1 of TATA.(jabial)

I updated the page as promised. --Jabial 13:44, 20 April 2006 (UTC)

## unary?

What is a "unary" state?? 160.114.140.149 (talk) 21:35, 15 September 2008 (UTC)

I think that the definition of "ranked alphabet" should be moved somewhere else (here?). 149.156.90.26 (talk) 12:34, 29 September 2009 (UTC)

Hello fellow Wikipedians,

I have just added archive links to one external link on Tree automaton. Please take a moment to review my edit. If necessary, add {{cbignore}} after the link to keep me from modifying it. Alternatively, you can add {{nobots|deny=InternetArchiveBot}} to keep me off the page altogether. I made the following changes:

When you have finished reviewing my changes, please set the checked parameter below to true or failed to let others know (documentation at {{Sourcecheck}}).

An editor has reviewed this edit and fixed any errors that were found.

• If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
• If you found an error with any archives or the URLs themselves, you can fix them with this tool.

If you are unable to use these tools, you may set |needhelp=<your help request> on this template to request help from an experienced user. Please include details about your problem, to help other editors.

Cheers.—cyberbot IITalk to my owner:Online 00:26, 24 March 2016 (UTC)