Rove Luiza de Oliveira Chishman

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Opinion Lexicons are linguistic resources annotated with semantic orientation of terms (positive and negative) and are important for opinion mining tasks. In the literature we see a variety of proposals for the construction of opinion lexicons using different linguistic resources and techniques. In this work, we propose and evaluate the integration of such(More)
FrameNet frames have been used to develop lexical databases and annotated corpora for different languages. This paper analyses the use of FrameNet frames to build a legal ontology for the Brazilian Law. In order to discuss the problems of such approach to ontology development, the lexical units evoking the Criminal_process frame were contrasted in English(More)
In this paper we present a novel methodology for automatic information extraction from natural language texts, based on the integration of linguistic rules, multiple ontologies and inference resources, integrated with an abstraction layer for linguistic annotation and data representation. The methodology allows ontology population with instances of events.(More)
The need for the representation of both semantics and common sense and its organization in a lexical database or knowledge base has motivated the development of large projects, such as Wordnets, CYC and Mikrokosmos. Besides the generic bases, another approach is the construction of ontologies for specific domains. Among the advantages of such approach there(More)
The noun compounds are productive constructions in a variety of languages, but the study of this linguistic phenomenon is still a challenge, since these constructions are idiosyncratic. In this paper, we present a study of the semantics of noun compounds in English. We selected compounds formed by two nouns, noun-noun (NN) compounds, from a corpus of ten(More)
This paper presents a preliminary study on the semantic description of the verbs of the Brazilian legal field. This is a study of the verbal semantics in order to construct a legal ontology of events. This work includes an exemplification of the analysis to be performed for the construction of ontology, presenting a ontology formalization proposal. Resumo.(More)
This paper carries out a descriptive study on Portuguese adjectives. Our aim is to describe the semantics of the legal domain adjectives in order to construct an ontology which may improve Information Retrieval Systems. For this, we present an approach based on valency and semantic relations. The ontology proposed here is a first step aiming to build a(More)