View Source: Help/RateItPlugin

RateIt: A recommender system, based on [[http://www.movielens.org/|MovieLens]] and "suggest". Store user ratings per pagename. The wikilens theme displays a navbar image bar with some nice Javascript magic and this plugin shows various recommendations. There should be two methods to store ratings: * In a SQL database as in wikilens [[http://dickens.cs.umn.edu/dfrankow/wikilens]] The most important fact: A page has more than one rating. There can be (and will be!) many ratings per page (ratee): different raters (users), in different dimensions. Are those stored per page (ratee)? Then what if I wish to access the ratings per rater (user)? Wikilens plans several user-centered applications like: * a) show my ratings * b) show my buddies' ratings * c) show how my ratings are like my buddies' * d) show where I agree/disagree with my buddy * e) show what this group of people agree/disagree on If the ratings are stored in a real DB in a table, we can index the ratings by rater and ratee, and be confident in performance. Currently [[http://www.movielens.org/|MovieLens]] has 80,000 users, 7,000 items, 10,000,000 ratings. This is an average of 1400 ratings/page if each page were rated equally. However, they're not: the most popular things have tens of thousands of ratings (e.g., "Pulp Fiction" has 42,000 ratings). If ratings are stored per page, you would have to save/read huge page metadata every time someone submits a rating. Finally, the movie domain has an unusually small number of items-- I'd expect a lot more in music, for example. For a simple rating system one can also store the rating in the page metadata (default). Recommender Engines: * Recommendation/Prediction is a special field of "Data Mining" * For a list of (also free) software see http://www.the-data-mine.com/bin/view/Software/WebIndex ** movielens: (Java Server) will be gpl'd in summer 2004 (weighted) ** suggest: is free for non-commercial use, available as compiled library (non-weighted) ** Autoclass: simple public domain C library ** MLC++: C++ library http://www.sgi.com/tech/mlc/ == Usage == Note: The wikilens theme or any derivate must be enabled, to enable this plugin! {{{ <<RateIt>> just the widget without text <<RateIt show=top>> text plus widget below <<RateIt show=ratings>> to show my ratings TODO: <<RateIt show=buddies>> to show my buddies <<RateIt show=ratings dimension=1>> TODO: <<RateIt show=text>> just text, no widget, for dumps }}} == Arguments == {| class="bordered" |- ! Argument ! Description ! Default value |- | **pagename** | The page to execute upon | current pagename |- | **version** | | false |- | **version** | | false |- | **id** | | rateit |- | **imgPrefix** | //(empty)// or BStar or Star | //(empty)// |- | **dimension** | | false |- | **small** | | false |- | **show** | | false |- | **mode** | | false |} == Example == {{{ <<RateIt>> }}} == Author == * Dan Frankowski (wikilens author), * [[Help:Reini Urban|Reini Urban]] (as plugin) == See Also == * [[Help:UserRatingsPlugin]] <noinclude> ---- [[PhpWikiDocumentation]] [[CategoryWikiPlugin]] </noinclude>