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Topic maps constraint languages : understanding and comparing
Librelotto, Giovani Rubert; Azevedo, Renato Preigschadt de; Ramalho, José Carlos; Henriques, Pedro RangelTopic map constraint language (TMCL) provides a means to express constraints on topic maps conforming to ISO/IEC 13250. In this article, we will use a test suite and show, step-by-step, the way we handled several kinds of topic maps constraints in many different instances in order to answer questions like: Do they do the same job? Are there some kinds of topic maps constraints that are easier to specify with on...
Navegando na rede semântica dos topic maps com o Ulisses
Librelotto, Giovani Rubert; Azevedo, Renato Preigschadt de; Ramalho, José Carlos; Henriques, Pedro RangelA norma ISO-IEC 13250 Topic Maps, composta principalmente de tópicos interligados através de associações, define uma rede semântica estruturada sobre um sistema de informação, criando uma ponte entre a gestão de informação e os domínios de representação de conhecimento. A estrutura de dados que um topic map representa é um grafo; portanto, uma das melhores maneiras de visualizar um grafo é percebendo sua estrut...
Topic maps constraint specification languages : comparing AsTMa!, OSL, and XTche
Librelotto, Giovani Rubert; Azevedo, Renato Preigschadt de; Ramalho, José Carlos; Henriques, Pedro RangelTopic maps are an ISO standard for the representation and interchange of knowledge, with an emphasis on the findability of information. A topic map can represent information using topics (representing any concept), associations (which represent the relationships between them), and occurrences (which represent relationships between topics and information resources relevant to them). They are thus similar to sema...
Implementing TMCL: XTche : a topic map schema and constraint specification lang...
Librelotto, Giovani Rubert; Azevedo, Renato Preigschadt de; Turchetti, Rogério; Ramalho, José Carlos; Henriques, Pedro RangelIn this paper we present a Topic Maps Validation System – XTche constraint language and its processor. We started with our strong motivation to check a topic map for syntactic and semantic correctness – as a notation to describe an ontology that supports a sophisticated computer system where its validation is crucial! Then we assume XTM and TMCL as starting points and we used our background in compilers and ...
Topic maps constraint languages : understanding and comparing
Librelotto, Giovani Rubert; Azevedo, Renato Preigschadt de; Ramalho, José Carlos; Henriques, Pedro RangelTopic Map Constraint Language (TMCL) provides a means to express constraints on topic maps conforming to ISO/IEC 13250. In this article, we will use a test suite and show, step-by-step, the way we handled several kinds of Topic Maps constraints in many di
Comparing topic maps constraint specification languages
Librelotto, Giovani Rubert; Azevedo, Renato Preigschadt de; Ramalho, José Carlos; Henriques, Pedro RangelTopic Map Constraint Language (TMCL) provides a means to express constraints on topic maps conforming to ISO/IEC 13250. In this article, we will use a test suite and show, step-by-step, the way we handled several kinds of Topic Maps constraints in many di
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