Encontrados 10 documentos, a visualizar página 1 de 1
Quadro interativo de baixo custo com interação através de dispositivos móveis
Rebocho, Rui; Beires Nogueira, Vitor; Eduardo Dias, AntónioCom a criação do Plano Tecnológico da Educação o Ministério da Educação Português tinha como objetivo dotar as escolas públicas de Internet de alta velocidade, dois alunos por computador, um videoprojector por sala e um quadro interativo por cada três salas. Todo este avultado investimento tinha como objetivo dotar as escolas públicas de equipamentos de última geração e que permitissem acompanhar os avanços tec...
A Review on Cooperative Question-Answering Systems
Melo, Dora; Pimenta Rodrigues, Irene; Beires Nogueira, VitorThe Question-Answering (QA) systems fall in the study area of Information Retrieval (IR) and Natural Language Processing (NLP). Given a set of documents, a QA system tries to obtain the correct answer to the questions posed in Natural Language (NL). Normally, the QA systems comprise three main components: question classification, information retrieval and answer extraction. Question classification plays a major...
Puzzle out the semantic web search
Melo, Dora; Rodrigues, Irene; Nogueira, VitorIn this paper we propose a Cooperative Question Answering System that takes as input natural language queries and is able to return a cooperative answer based on semantic web resources, more specifically DBpedia represented in OWL/RDF as knowledge base and WordNet to build similar questions. Our system resorts to ontologies not only for reasoning but also to find answers and is independent of prior knowledge of...
Um sistema de pergunta-resposta para ontologias owl
Melo, Dora; Rodrigues, Irene; Nogueira, VitorOs sistemas de pergunta-resposta em língua natural sobre a web semântica exigem mecanismos capazes de interpretar para além da correspondência de palavras em documentos, actualmente feito pelos motores de pesquisa na internet, bem como de encontrar uma resposta precisa, sem exigir a ajuda do utilizador para interpretar os documentos retornados. Neste artigo apresentamos um Controlador do Discurso que, através d...
Work out the semantic web search: The cooperative way
Melo, Dora; Rodrigues, Irene; Nogueira, VitorIn this paper we propose a Cooperative Question Answering System that takes as input natural language queries and is able to return a cooperative answer based on semantic web resources, more specifically DBpedia represented in OWL/RDF as knowledge base and WordNet to build similar questions. Our system resorts to ontologies not only for reasoning but also to find answers and is independent of prior knowledge of...
Cooperative Question Answering Semantic Web
Melo, Dora; Rodrigues, Irene Pimenta; Nogueira, VitorIn this paper we propose a Cooperative Question Answering System that takes as input queries expressed in natural language and is able to return a cooperative answer obtained from resources in the Semantic Web, more specifically DBpedia represented in OWL/RDF as knowledge base and WordNet to build similar questions. Our system resorts to ontologies not only for reasoning but also to find answers and is independ...
Temporal reasoning in a logic programming language with modularity
Nogueira, VitorCurrent Organization Information Systems (OIS) deal with more and more information that is time dependent. In this work we provide a framework to construct and maintain Temporal OIS. This framework builds upon a logical language called Temporal Contextual Logic Programming that deeply integrates modularity with temporal reasoning making the usage of a module time dependent. This language is an evolution of an...
Temporal Annotations for a Contextual Logic Programming Language
Nogueira, Vitor; Abreu, SalvadorIn this paper we propose the combination of modularity and temporal reasoning using logic programming as common ground. Moreover, we consider that the usage of a given module is influenced by temporal constraints, i.e. modularity and temporal reasoning are strongly connected. Besides illustrative examples, we also present the operational semantics and corresponding compiler for this language.
Modularity and Temporal Reasoning: a Logic Programming Approach
Nogueira, Vitor; Abreu, SalvadorAlbeit temporal reasoning and modularity are very prolific fields of research in Logic Programming (LP), we find few examples of their integration. In this paper we propose the addition of temporal annotations to a modular extension of LP. Moreover, besides an illustrative example we also provide a sketch for a compiler, allowing this way for the development of applications based such language.
Integrating Temporal Annotations in a Modular Logic Language
Nogueira, Vitor; Abreu, SalvadorAlbeit temporal reasoning and modularity are very prolific fields of research in Logic Programming (LP) we find few examples of their integration. Moreover, in those examples, time and modularity are considered orthogonal to each other. In this paper we propose the addition of temporal annotations to a modular extension of LP such that the usage of a module is influenced by temporal conditions. Besides illust...
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