Explain better this new inventory for Word Sense Disambiguation My question is about CSI (Coarse Sense Inventory), described in the paper CSI A Coarse Sense Inventory for 85% Word Sense Disambiguation (C Lacerra, M Bevilacqua, T Pasini, R Navigli).

Before the question, let me quickly describe the new CSI using phrases taken from the above paper.

CSI is a "a resource that avoids sense distinctions that are
too ﬁne-grained for WSD, while maintaining a granularity that is still meaningful for the task".

CSI is "obtained by linking WordNet concepts to a new set of 45 labels".

The comparison between WordNet and CSI is given in table 7:



Question: What is a semantically-empty prediction? (The paper doesn't explain well what is a semantically-empty label)
The paper says:


  "we also added the semantically-empty label named GENERAL to our inventory to cover the 135 categories that could not be included in any cluster."


I suggest you read that as though it had said


  we also added the label named GENERAL to our inventory to cover the 135 categories that could not be included in any cluster.  This label is not associated with one specific semantic meaning; it is a catch-all for the categories that could not be mapped to any of the other labels.