tag-cloud

I have articles on my site, and I would like to add tags which would describe each article, but I'm having problems with design mysql table for tags. I have two ideas: each article would have field "tags", and tags would be in format: "tag1,tag2,tag3" create other table called tags with fields: tag_name, article_id So when I want tags for article with ID 1, I would run SELECT ... FROM tags WHERE `article_id`=1; But, I would also like to know 3 most similar articles by comparing tags, so if I have article which has tags "php,mysql,erlang", and 5 articles with tags: "php,mysql", "erlang,ruby",

I'd love to know how Stack Overflow's tagging and search is architected, because it seems to work pretty well. What is a good database/search model if I want to do all of the following: Storing Tags on various entities, (how normalized? i.e. Entity, Tag, and Entity_Tag tables?) Searching for items with particular tags Building a tag cloud of all tags that apply to a particular search result set How to show a tag list for each item in a search result? Perhaps it makes sense to store the tags in a normalized form, but also as a space-delimited string for the purposes of #2, #4, and perhaps #3.

I seem to be stuck behind the logic of a Solr faceting-powered tag cloud. First of all, I'm using OpenNLP to parse my docs and obtain relevant words out of it, so every single document gets split into n number of words. And here's basically what my Solr response looks like: <docID> <title>My Doc Title</title> <content>My Doc Title</content> <date_published>My Doc Title</date_published> </docID> I believe there must be a way to integrate the words in here. I first thought of something like this: <docID> <title>My Doc Title</title> <content>My Doc Title</content> <date_published>My Doc Title<

I've been looking far and wide and still haven't been able to find an example of how to setup a query to look for a specific 'tag' that the user selects from a sidebar which in turn will bring up all posts with that tag. I understand how to find all tags, but not to find a specific selected by the user. blogrepository public function getTags($tags) { $qb = $this->createQueryBuilder('b'); $qb->select('b') ->join('b.tags', 'tag') ->where('b.tags LIKE ?', '%'.$tags.'%'); return $qb->getQuery()->getResult(); } blog entity /** * @var string * * @ORM\Column(name="tags", type="text") */ private $tags

I have the following arrays: $artist = array("the roots", "michael jackson", "billy idol", "more", "and more", "and_YET_MORE"); $count = array(5, 3, 9, 1, 1, 3); I want to generate a tag cloud that will have artists with a higher number in $count enclosed in h6 tags and the lowest enclosed h1 tags. berkes You will want to add a logarithmic function to it too. (taken from tagadelic, my Drupal module to create tag clouds http://drupal.org/project/tagadelic ): db_query('SELECT COUNT(*) AS count, id, name FROM ... ORDER BY count DESC'); $steps = 6; $tags = array(); $min = 1e9; $max = -1e9; while (