Comments on: Wikipedia Category Graph Generator http://blog.prashanthellina.com/2007/11/12/wikipedia-category-graph-generator/ In Pursuit of Truth Fri, 09 Apr 2010 10:27:43 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Josh Saxe http://blog.prashanthellina.com/2007/11/12/wikipedia-category-graph-generator/comment-page-1/#comment-40892 Josh Saxe Fri, 22 Jan 2010 03:22:11 +0000 http://blog.prashanthellina.com/2007/11/12/wikipedia-category-graph-generator/#comment-40892 Sorry, spoke too soon. With the default link type my searches were returning an empty graph. I had to switch the link type to 'article category' and then I started getting fairly large structures. Also the cloud graph layout (alternative algorithm checkbox) tended to work better for me, as the default tree-style layout generated very wide graphs. Here's an interesting looking graph: http://toolserver.org/~dapete/catgraph/graph.php?wiki=wikipedia&lang=en&cat=Oliver+Cromwell&d=0&n=0&format=png&links=0&sub=article&fdp=1 Sorry, spoke too soon. With the default link type my searches were returning an empty graph. I had to switch the link type to ‘article category’ and then I started getting fairly large structures. Also the cloud graph layout (alternative algorithm checkbox) tended to work better for me, as the default tree-style layout generated very wide graphs. Here’s an interesting looking graph:
http://toolserver.org/~dapete/catgraph/graph.php?wiki=wikipedia&lang=en&cat=Oliver+Cromwell&d=0&n=0&format=png&links=0&sub=article&fdp=1

]]> By: Josh Saxe http://blog.prashanthellina.com/2007/11/12/wikipedia-category-graph-generator/comment-page-1/#comment-40891 Josh Saxe Fri, 22 Jan 2010 03:13:13 +0000 http://blog.prashanthellina.com/2007/11/12/wikipedia-category-graph-generator/#comment-40891 It seems the category graph generator no longer works =( It seems the category graph generator no longer works =(

]]> By: prashanthellina http://blog.prashanthellina.com/2007/11/12/wikipedia-category-graph-generator/comment-page-1/#comment-432 prashanthellina Tue, 13 Nov 2007 14:22:17 +0000 http://blog.prashanthellina.com/2007/11/12/wikipedia-category-graph-generator/#comment-432 David, I agree with you about Wikipedia article classfication being incorrect in some cases. However, I believe the data is still useful for semantic analysis experiments. David, I agree with you about Wikipedia article classfication being incorrect in some cases. However, I believe the data is still useful for semantic analysis experiments.

]]> By: David Gerard http://blog.prashanthellina.com/2007/11/12/wikipedia-category-graph-generator/comment-page-1/#comment-413 David Gerard Mon, 12 Nov 2007 18:40:12 +0000 http://blog.prashanthellina.com/2007/11/12/wikipedia-category-graph-generator/#comment-413 The important thing to remember about the en:wp category scheme is that it doesn't necessarily make sense, and there's no reason or authority to make it make sense. This is unfortunate ... There is talk of a more tag-like scheme for categorisation, where most subcategories would disappear to be replaced by a query on the intersection of two tags. But someone has to write the code, and show it won't slow the database to a crawl in practice. The important thing to remember about the en:wp category scheme is that it doesn’t necessarily make sense, and there’s no reason or authority to make it make sense. This is unfortunate …

There is talk of a more tag-like scheme for categorisation, where most subcategories would disappear to be replaced by a query on the intersection of two tags. But someone has to write the code, and show it won’t slow the database to a crawl in practice.

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