Measuring Semantic Relatedness

Sandipan Dey re-works a university assignment on semantic relatedness in Python:

Let’s define the semantic relatedness of two WordNet nouns x and y as follows:

  • A = set of synsets in which x appears
  • B = set of synsets in which y appears
  • distance(x, y) = length of shortest ancestral path of subsets A and B
  • sca(x, y) = a shortest common ancestor of subsets A and B

This is the notion of distance that we need to use to implement the distance() and sca() methods in the WordNet data type.

It looks like a helpful assignment for understanding natural language processing a little better.

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