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POUsing ELKI on custom objects and making sense of results
 

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    <p>I am trying to use <a href="http://elki.dbs.ifi.lmu.de/releases/release0.5.5/doc/de/lmu/ifi/dbs/elki/algorithm/clustering/SLINK.html" rel="nofollow">ELKI's SLINK implementation</a> of hierarchical clustering in my program.</p> <p>I have a set of objects (of my own type) that need to be clustered. For that, I convert them to feature vectors before clustering.</p> <p>This is how I currently got it to run and produce some result (code is in Scala):</p> <pre><code>val clusterer = new SLINK(CosineDistanceFunction.STATIC, 3) val connection = new ArrayAdapterDatabaseConnection(featureVectors) val database = new StaticArrayDatabase(connection, null) database.initialize() val result = clusterer.run(database).asInstanceOf[Clustering[_ &lt;: Model]] </code></pre> <p>Now, the result is a <code>Clustering</code> that contains elements of type <code>Model</code>. I can output them, but I don't know how to make sense of this result, especially since <code>SLINK</code> returns models of type <code>DendrogramModel</code> which does not seem to be parametrizable.</p> <p>Specifically, how can I link the results back to my original elements (the ones from which I created the variable <code>featureVectors</code> earlier)?</p> <p>I assume I need to create some kind of custom model or somehow maintain some link to the original elements through initialization and execution of the algorithm to retrieve from the result. I cannot find where to get started on this though.</p> <p>I am aware that embedding ELKI into own programs is discouraged. However, it seems that calling ELKI in some other way would not be any different: I need to cluster and map the results back to my objects during runtime of my program.</p>
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