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

110 Chapter 6. Thesaurus Enrichment
canjica, raposa, garrana, raposeira, cartola, cachorra, entusiasmo, carpanta, piteira, borracheira,
cabeleira, carrocha, pifo, camoeca, marta, cachaceira, zangurriana, verniz, carrada
• patamaz, boca-aberta, imbecil, lucas, malhadeiro, orate, zé-cuecas, lerdaço, tantã, boleima,
babão, jato, zambana, badó, ânsar, bolônio, chapetão, parvalhão, haule, papa-moscas,
lerdo, patau, sànona, perturbado, possidónio, babaquara, tolo, galafura, babuíno,
zângano, inepto, badana, cabaça, andor, pax-vóbis, idiota, pascoal-bailão, sandeu, asneirão,
zé, capadócio, calino, doudivanas, pasguate, parreco, babanca, palerma, molusco,
parrana, moco, ansarinho, bajoujo, burro, truão, estulto, pexote, maninelo, lérias, banana,
banazola, patego, bobo, estúpido, asno, sonso, ignorante, troixa, otário, simplório,
pancrácio, patola, songo-mongo, toleirão, totó, burgesso, morcão, microcéfalo, patinho,
bacoco, babancas, inhenha, pàteta, néscio, matias, parvoinho, mané, anastácio, manembro,
tatamba, bobalhão, bertoldo, patavina, tonto, apedeuto, pachocho, ingênuo, bocoió, simplacheirão,
jerico, zote, sebastião, lorpa, atónito, patacão, pato, parvoeirão, ingénuo, papalvo,
pateta, tanso, cretino, bolónio, basbaque, mentecapto, pachola, apaixonado, pasmão,
pascácio, tarola, trouxa, parvo, jumento, geta, arara, gato-bravo, pedaço-de-asno, parvajola,
pacóvio, laparoto, crendeiro, loura
In the previous synsets, the words of the original TeP synsets are presented in
bold. Other large synsets cover the concepts of a strong critic (100 words, including
ralho, ensinadela, descasca, raspanete, descompostura), trickery (95 words, including
peta, embuste, manha, barrete, tramóia), prostitute (73 words, including pega,
menina, mulher-da-vida, meretriz, quenga, rameira, ...), a rascal/mischievous person
(72 words, including, pulha, traste, gandulo, salafrário, patife, tratante, ...), and
money (60 words, including pastel, massa, grana, guita, carcanhol). Also, on clustering,
the only noun synset that includes more than 25 words refers to the concept
of ’backside’ or ’butt’, and contains words such as bufante, padaria or peida. In
TeP 2.0, the largest noun synset refers to a strike or aggression with some tool, and
includes words as paulada, bastonada, marretada and pancada.
Furthermore, the largest verb synset in the final thesaurus means to mislead and
contains words as embromar, ludibriar, embaciar, enrolar, vigarizar, or intrujar. The
largest adjective synset denotes the quality of being shifty or deceitful and contains
words as artificioso, matreiro, ardiloso, traiçoeiro, and sagaz.
6.5 Discussion
We have presented our work towards the enrichment of a thesaurus, structured in
synsets, with synonymy information automatically acquired from general language
dictionaries. The four-step enrichment approach resulted in TRIP, a large Portuguese
thesaurus, obtained after enriching TeP, a Brazilian Portuguese thesaurus,
with information extracted from three Portuguese dictionaries and a smaller Portuguese
thesaurus. There are some similarities between the work presented here and
the work of Tokunaga et al. (2001), for Japanese. However, our thesaurus is simpler,
as it does not contain taxonomic information. Furthermore, although it was used
for Portuguese, the proposed approach might be adapted to other languages.
Given that it is created using a handcrafted thesaurus as a starting point, the
resulting thesaurus is more reliable than the thesaurus obtained in the previous
chapter. The evaluation of the assignment procedure and of the obtained clusters
also point that out, as they have shown higher precisions. Therefore, in the construction
of Onto.PT, the four-step approach, in this chapter, was used instead of
that described in the previous chapter, where synsets are discovered from scratch.