CREATE_KMEANS_RESPONSE returns an html response for k-means 
    CREATE_KMEANS_RESPONSE(CLUSTERS, TITLES) creates a summary 
    html file containing information for the result of the 
    k-means algorithm, defined by CLUSTERS, when applied to 
    the dataset with document titles defined in the TITLES 
    cell array. 
    CREATE_KMEANS_RESPONSE(CLUSTERS, TITLES, VARIANT) defines 
    additionaly the k-means variant (possible values 'k-means' 
    and 'skmeans'). The result is stored in the "results" 
    directory and displayed using the default web browser. 
 
  Copyright 2011 Dimitrios Zeimpekis, Eugenia Maria Kontopoulou, 
                 Efstratios Gallopoulos