The last word in the noun phase is then extracted and becomes the hypernym of the entity described by the article.

For example, from the following defining sentence, it extracts “guitarist” as the hypernym for “J imi Hendrix”.

# instances page titles processed 550,832 articles found 547,779 (found by redirection) (189,222) first sentences found 545,577 hypernyms extracted 482,599

8They handled “redirections” as well by following redirection links and extracting a hypernym from the article reached.

(2005) experimented with first-sense and hypernym features from HowNet and CiLin (both WordNets for Chinese) in a generative parse model applied to the Chinese Penn Treebank.

The combination of word sense and first-level hypernyms produced a significant improvement over their basic model.

1In WordNet 2.1, knife and scissors are sister synsets, both of which have TOOL as their 4th hypernym .

Only by mapping them onto their lst hypernym or higher would we be able to capture the semantic generalisation alluded to above.

The maximum for WordNet is 0.8506, where the mean is 3, or the first hypernym synset.

This suggests that the POS and Head are most important for representing text in Roget’s Thesaurus, while the first hypernym is most important for representing text using WordNet.

These hypernym relations were also put towards solving analogy questions.