tagging

I'm coding a website in PHP/MySQL and I'd like to implement a similar to stackoverflow tagging engine. I have 3 relevant tables in DB: 1. Items 2. Tags 3. ItemTagMap (maps tags to items, n:n mapping) Now, on search page I'd like to show distinct list of all tags for entire search result (not just the current page), so that users can "refine" their search by adding/removing tags from that tag list. The question is that it's a pretty heavy query on the DB and there can be tons of search requests that result in different result sets and thus different tag sets. Does anyone know how to implement

Is any place I can download Treebank of English phrases for free or less than $100? I need training data containing bunch of syntactic parsed sentences (>1000) in English in any format. Basically all I need is just words in this sentences being recognized by part of speech. cyborg NLTK (for Python) offers several treebanks for free . Here are a couple (English) treebanks available for free: American National Corpus: MASC Questions: QuestionBank and Stanford's corrections British news: BNC TED talks: NAIST-NTT TED Treebank Georgetown University Multilayer Corpus: GUM Biomedical: NaCTeM GENIA

I want to build a web application that lets users upload documents , videos , images , music , and then give them an ability to search them. Think of it as Dropbox + Semantic Search. When user uploads a new file, e.g. Document1.docx , how could I automatically generate tags based on the content of the file? In other words no user input is needed to determine what the file is about. If suppose that Document1.docx is a research paper on data mining, then when user searches for data mining , or research paper , or document1 , that file should be returned in search results, since data mining and

I clone my source using git clone https://gerrit.wikimedia.org/r/p/mediawiki/core.git w/ . Then I specify a specific branch/tag by doing git checkout <tag name> or git checkout origin/REL<release number> . Sometimes I forget what branch or tag I'm on. In SVN I would do a svn info to figure out what branch/tag I'm using (I realize that git has distinct definitions for branch and tag but for my purposes they are the same). How do I determine what branch/tag I am on? git branch tells you what branch you're on (with a * marker). Tags are just names for revisions, so Git won't tell you that you're

I am wanting to allow users to tag items so that they can search for them using tags. What is the best way of achieving this cleanly? So far the solution I have come up with only involves adding two extra tables to my current db system. <db Trackable product 1> int id; info etc </> <db Trackable product 2> int id; info etc </> //defines the M:M relationship between Tag and various types of Trackable products <db TagLink> int trackableProd1Id int trackableProd2Id int tagId </> <db Tag> int tagId tag name etc </> Is this a good way to go about it? A benefit of this approach is that it should

I've built a news site: - The articles are shown on the front page ordered by date. The newest one first. - The news are in the table "news" with the fields "id", "title", "text" and some other ones. - All articles are tagged with 1-5 relevant tags. - The tags are in the table "tags" with the fields "id", "tag", "article" and some other ones. - The field "article" of "tags" fits to the field "id" of "news". Now I want to give the user the opportunity to add tags to his "favored tags list". Then the user should only see news articles which contain one of the favored tags. Assuming the user Bob