Onto.PT: Towards the Automatic Construction of a Lexical Ontology ...

126 Chapter 7. Moving from term-based to synset-based relations
% of N Algorithm Precision (%) Recall (%) F1(%) F0.5(%) RF1(%)
RP 89.1 61.5 72.8 81.7 85.7
AC 93.4 78.0 85.0 89.9 93.4
RP+AC 93.1 78.4 85.1 89.9 93.1
50% NT 89.2 72.7 80.1 85.4 89.2
NT+AC 94.1 76.3 84.3 89.9 94.1
PR 57.3 55.0 56.1 56.9 57.3
MD 64.6 69.6 67.0 65.5 64.6
RP 88.5 40.9 55.9 71.8 71.1
AC 82.8 70.4 76.1 80.0 82.8
RP+AC 84.1 72.5 77.9 81.5 84.1
25% NT 82.0 65.6 72.9 78.1 82.0
NT+AC 77.6 73.2 75.3 76.7 77.6
PR 55.7 54.0 54.8 55.3 55.7
MD 58.5 67.7 62.7 60.1 58.5
RP 87.6 29.2 43.8 62.6 58.9
AC 76.8 66.0 71.0 74.4 76.8
RP+AC 79.0 70.3 74.4 77.1 79.0
12.5% NT 74.8 56.2 64.2 70.2 74.8
NT+AC 63.4 73.0 67.9 65.1 63.4
PR 53.3 53.4 53.4 53.4 53.3
MD 49.0 64.6 55.7 51.5 49.9
Table 7.5: Results of ontologising 800 antonymy tb-triples, between nouns, of TeP
in TeP, using only part of the TeP’s antonymy relations as a lexical network.
% of N Algorithm Precision (%) Recall (%) F1(%) F0.5(%) RF1(%)
RP 95.2 76.3 84.7 90.7 95.2
AC 92.7 82.3 87.2 90.4 92.7
RP+AC 96.6 82.8 89.2 93.5 96.6
50% NT 93.5 79.2 85.8 90.2 93.5
NT+AC 94.9 80.1 86.9 91.5 94.9
PR 51.3 56.5 53.8 52.3 51.3
MD 79.1 78.0 78.6 78.9 79.1
RP 93.8 61.0 73.9 84.7 89.6
AC 93.5 82.3 87.5 91.0 93.5
RP+AC 94.5 82.3 88.0 91.8 94.5
25% NT 91.2 77.0 83.5 88.0 91.2
NT+AC 94.2 80.9 87.0 91.2 94.2
PR 51.4 56.5 54.8 52.4 51.4
MD 75.6 76.3 75.6 75.7 75.6
RP 93.0 47.6 63.0 78.1 82.7
AC 88.6 78.0 83.0 86.2 88.6
RP+AC 89.9 79.2 84.2 87.6 89.9
12.5% NT 87.5 71.8 78.8 83.8 87.5
NT+AC 88.0 79.2 83.4 86.1 88.0
PR 51.3 55.7 53.4 52.1 51.3
MD 70.2 74.9 72.4 71.1 70.2
Table 7.6: Results of ontologising 800 antonymy tb-triples, between verbs, of TeP
in TeP, using only part of the TeP’s antonymy relations as a lexical network.
result in uniformly distributed missing tb-triples. What happens when extracting
information from text is that some parts of the network might be almost complete,
while other parts, possibly those with less frequent words and relations, will be
almost incomplete.