Nuno Seco


2006

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HAREM: An Advanced NER Evaluation Contest for Portuguese
Diana Santos | Nuno Seco | Nuno Cardoso | Rui Vilela
Proceedings of the Fifth International Conference on Language Resources and Evaluation (LREC’06)

In this paper we provide an overview of the first evaluation contest for named entity recognition in Portuguese, HAREM, which features several original traits and provided the first state of the art for the field in Portuguese, as well as a public-domain evaluation architecture.

2004

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Concept Creation in Lexical Ontologies
Nuno Seco | Tony Veale | Jer Hayes
Proceedings of the Fourth International Conference on Language Resources and Evaluation (LREC’04)

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Enriching WordNet Via Generative Metonymy and Creative Polysemy
Jer Hayes | Tony Veale | Nuno Seco
Proceedings of the Fourth International Conference on Language Resources and Evaluation (LREC’04)

Metonymy is a creative process that establishes relationships based on contiguity or semantic relatedness between concepts. We outline a mechanism for deriving new concepts from WordNet using metonymy. We argue that by exploiting polysemy in WordNet we can take advantage of the metonymic relations between concepts. The focus of our metonymy generation work has been the creation of noun­ noun compounds that do not already exist in WordNet and which can be profitably added to WordNet. The mechanism of metonymy generation we outline takes a source compound and creates new compounds by exploiting the polysemy associated with hyponyms of the head of the source compound. We argue that metonymy generation is a sound basis for concept creation as the newly created compounds are semantically related to the source concept. We demonstrate that metonymy generation based on polysemy is superior to a method of metonymy generation that ignores polysemy. These new concepts can be used to augment WordNet.

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Creative Discovery in Lexical Ontologies
Tony Veale | Nuno Seco | Jer Hayes
COLING 2004: Proceedings of the 20th International Conference on Computational Linguistics