This experiment is an evolution of the previous one. The links are shown as outcoming links (red) and incoming links (blue). Moreover, the size of the nodes describes the number of entities for a certain DBpedia Class.
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<html>
<head>
<meta charset="utf-8">
<title>DBpedia Classes Radial Node Link Diagram 2 (Strahler Number)</title>
<link type="text/css" href="index.css" rel="stylesheet"/>
<script src="https://d3js.org/d3.v3.min.js"></script>
</head>
<body>
<script src="index.js"></script>
</body>
</html>
Modified http://d3js.org/d3.v3.min.js to a secure url
https://d3js.org/d3.v3.min.js