Hierarchical Clustering

https://d3js.org/d3.v3.min.js

https://cdnjs.cloudflare.com/ajax/libs/lodash.js/2.4.1/lodash.min.js

https://wafi.iit.cnr.it/webvis/tmp/clusterfck.js

https://wafi.iit.cnr.it/webvis/libs/jigmaps/zip.js

https://wafi.iit.cnr.it/webvis/libs/jigmaps/tree_utils.js