On Flat versus Hierarchical Classification in Large-Scale Taxonomies

  title={On Flat versus Hierarchical Classification in Large-Scale Taxonomies},
  author={Rohit Babbar and Ioannis Partalas and {\'E}ric Gaussier and Massih-Reza Amini},
We study in this paper flat and hierarchical classification strategies in the context of large-scale taxonomies. To this end, we first propose a multiclass, hierarchical data dependent bound on the generalization error of classifiers deployed in large-scale taxonomies. This bound provides an explanation to several empirical results reported in the literature, related to the performance of flat and hierarchical classifiers. We then introduce another type of bound targeting the approximation… CONTINUE READING
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