2010/5/6 Kingsley Idehen <[email protected]>: > Olivier Grisel wrote: >> >> 2010/5/5 Paul Houle <[email protected]>: >> >>> >>> Just some thoughts here: >>> >>> (1) Sometimes page links get repeated. I think this is just because >>> page A has N links to page B. This doesn't have much semantic impact, >>> but it does bulk up the files a bit (though less w/ bz2) and makes more >>> work for my importer script >>> >> >> That can be important to some extent when computing the PageRank of >> the wikipedia graph. Or other graph algorithms to mesure the proximity >> / relatedness of entities. >> >> BTW, that would be great if the DBpedia project could compute and >> distribute the PageRank or the TunkRank [1] values for the DBpedia >> resources based on the data of the page links graph. This is a really >> good scoring heuristic when performing fuzzy text named queries with >> several homonymic matches. >> >> [1] http://thenoisychannel.com/2009/01/13/a-twitter-analog-to-pagerank/ >> > > Olivier, > > Have you looked at this interface to DBpedia: http://dbpedia.org/fct ? Also > look at the Entity Rank details in the "About" section. > > Basically, you have two ranking schemes in place: > > 1. Entity Rank -- based on Link Coefficients > 2. Text Scores > > With Virtuoso you can use both or either to order you SPARQL query results. > This has been so for quite some time now.
Yes sure I know that virtuoso is able to do it. It would still be interesting to have that info in raw N-TRIPLES exports in the download section of DBpedia for the millions of dbpedia entities for offline batch processing out of any triple store. It should not be a big deal to implement PageRank with Hadoop and Pig but having it computed once and usable by anybody would still be useful IMHO. -- Olivier http://twitter.com/ogrisel - http://github.com/ogrisel ------------------------------------------------------------------------------ _______________________________________________ Dbpedia-discussion mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion
