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Using Cognition and Learning to Improve Agents' Reactions [chapter]

Pedro Rafael Graça, Graça Gaspar
2003 Lecture Notes in Computer Science  
A more detailed description of this agent-architecture can be found in (Graça, 2000) .  ... 
doi:10.1007/3-540-44826-8_15 fatcat:zjz4j6cusvbbpd3wgabvzp67je

Le batey en République dominicaine : espace présent d'un temps passé

Inès Da Graça Gaspar
2020 Études Caribéennes  
doi:10.4000/etudescaribeennes.17582 fatcat:3u6e7cuhefajlo6cxwndbzu5z4

Editorial

Armanda Pinto da Mota Matos, Ana Maria Seixas, Carlos Folgado Barreira, Maria Filomena Gaspar, Maria da Graça Bidarra
2015 Revista Portuguesa de Pedagogia  
Armanda Pinto da Mota Matos Ana Maria Seixas Carlos Folgado Barreira Maria Filomena Gaspar Maria da Graça Bidarra  ... 
doi:10.14195/1647-8614_48-2_0 fatcat:t2qiapvihndbpabgpyrxjn7o64

Emotion Based Control of Reasoning and Decision Making [chapter]

Luis Morgado, Graça Gaspar
2010 Computational Intelligence for Engineering Systems  
In real-world domains, where uncertainty and dynamism are pervasive and time and resources are limited, reasoning and decision-making processes raise important problems related both to adaptive ability and to the computational complexity of the underlying cognitive mechanisms. In this context the integration between emotion based mechanisms and cognitive mechanisms can play a key role to support the development of intelligent agents able of effective behaviour under real-time resource-bounded
more » ... nditions. In this paper we address those issues under the framework of the agent flow model, an agent model where emotion and cognition are modeled as two integrated aspects of intelligent behavior and where affective-emotional mechanisms are used to support adaptability and to focus the reasoning and deliberation mechanisms to cope with their computational complexity.
doi:10.1007/978-94-007-0093-2_8 fatcat:iq47qfpwp5akjp64zjpbfovpiy

Information Flow within Relational Multi-context Systems [chapter]

Luís Cruz-Filipe, Graça Gaspar, Isabel Nunes
2014 Lecture Notes in Computer Science  
Multi-context systems (MCSs) are an important framework for heterogeneous combinations of systems within the Semantic Web. In this paper, we propose generic constructions to achieve specific forms of interaction in a principled way, and systematize some useful techniques to work with ontologies within an MCS. All these mechanisms are presented in the form of general-purpose design patterns. Their study also suggests new ways in which this framework can be further extended.
doi:10.1007/978-3-319-13704-9_8 fatcat:iygelc365bagngjv3lzwikkcvi

Hypothetical answers to continuous queries over data streams [article]

Luís Cruz-Filipe, Graça Gaspar, Isabel Nunes
2019 arXiv   pre-print
Continuous queries over data streams may suffer from blocking operations and/or unbound wait, which may delay answers until some relevant input arrives through the data stream. These delays may turn answers, when they arrive, obsolete to users who sometimes have to make decisions with no help whatsoever. Therefore, it can be useful to provide hypothetical answers - "given the current information, it is possible that X will become true at time t" - instead of no information at all. In this paper
more » ... we present a semantics for queries and corresponding answers that covers such hypothetical answers, together with an online algorithm for updating the set of facts that are consistent with the currently available information.
arXiv:1905.09610v2 fatcat:zwzi7aa57jgbfjhcrusgckkqoa

Emotion in Intelligent Virtual Agents: The Flow Model of Emotion [chapter]

Luís Morgado, Graça Gaspar
2003 Lecture Notes in Computer Science  
Different models have been proposed to support emotion in artificial agents. However, a general framework to support the implementation of emotional agents of different kinds and levels of complexity is still not well defined. In this paper we present a model that is independent of specific physiological or psychological details, despite being inspired by biological processes, defining an emotional structure that can be objectively implemented and evaluated, and which can be used to integrate
more » ... d extend other agent models, like deliberative models. Concrete results are presented to illustrate the model adequacy for agent emotional characterization.
doi:10.1007/978-3-540-39396-2_7 fatcat:6dmeelzpefbqda2mz5ui5jxc24

Editorial

Armanda Pinto da Mota Matos, Albertina Lima de Oliveira, Ana Maria Seixas, Carlos Folgado Barreira, Maria Filomena Gaspar, Maria da Graça Bidarra
2015 Revista Portuguesa de Pedagogia  
Armanda Pinto da Mota Matos Albertina Lima de Oliveira Ana Maria Seixas Carlos Folgado Barreira Maria Filomena Gaspar Maria da Graça Bidarra  ... 
doi:10.14195/1647-8614_46-2_0 fatcat:7y4cqpjcargxdclnzsx66veiom

Abstraction Level Regulation of Cognitive Processing Through Emotion-Based Attention Mechanisms [chapter]

Luís Morgado, Graça Gaspar
2007 Lecture Notes in Computer Science  
In domains where time and resources are limited, the ability to balance resource consumption according to the problem characteristics and to the required solution quality is a crucial aspect of intelligent behavior. Growing evidence indicates that emotional phenomena may play an important role in that balance. To support this view we propose an agent model where emotion and reasoning are conceived as two symbiotically integrated aspects of cognitive processing. In this paper we concretize this
more » ... iew by extending emotionbased regulation of cognitive activity to enable an active control of the abstraction level at which cognitive processes operate through emotion-based attention mechanisms, thus allowing a dynamical adjustment of the resources used. Experimental results are presented to illustrate the proposed approach and to evaluate its effectiveness in a scenario where reasoning under time-limited conditions in a dynamic environment is required.
doi:10.1007/978-3-540-77343-6_4 fatcat:jzekgtptazexpntkku433mvfoa

Computing Repairs from Active Integrity Constraints

Luis Cruz-Filipe, Graca Gaspar, Patricia Engracia, Isabel Nunes
2013 2013 International Symposium on Theoretical Aspects of Software Engineering  
Repairing an inconsistent knowledge base is a wellknown problem for which several solutions have been proposed and implemented in the past. In this paper, we start by looking at databases with active integrity constraints -consistency requirements that also indicate how the database should be updated when they are not met -as introduced by Caroprese et al. We show that the different kinds of repairs considered by those authors can be effectively computed by searching for leaves of specific
more » ... of trees. Although these computations are in general not very efficient (deciding the existence of a repair for a given database with active integrity constraints is N P -complete), on average the algorithms we present make significant reductions on the number of nodes in the search tree. Finally, these algorithms also give an operational characterization of different kinds of repairs that can be used when we extend the concept of active integrity constraints to the more general setting of knowledge bases.
doi:10.1109/tase.2013.32 dblp:conf/tase/Cruz-FilipeGEN13 fatcat:a32mkh3gwzh3litnymhlp425c4

Active Integrity Constraints for Multi-context Systems [chapter]

Luís Cruz-Filipe, Graça Gaspar, Isabel Nunes, Peter Schneider-Kamp
2016 Lecture Notes in Computer Science  
We introduce a formalism to couple integrity constraints over general-purpose knowledge bases with actions that can be executed to restore consistency. This formalism generalizes active integrity constraints over databases. In the more general setting of multi-context systems, adding repair suggestions to integrity constraints allows defining simple iterative algorithms to find all possible grounded repairs - repairs for the global system that follow the suggestions given by the actions in the
more » ... ndividual rules. We apply our methodology to ontologies, and show that it can express most relevant types of integrity constraints in this domain.
doi:10.1007/978-3-319-49004-5_7 fatcat:fvvgtptjvrfmlgie2kedw2u4yu

Emotion based adaptive reasoning for resource bounded agents

Luís Morgado, Graça Gaspar
2005 Proceedings of the fourth international joint conference on Autonomous agents and multiagent systems - AAMAS '05  
In the design of resource bounded agents, high-level cognitive activities, such as reasoning, raise important problems related both to the adaptive ability and to the computational complexity of the underlying cognitive processes. To address these problems, we adopt an agent model where emotion and cognition are conceived as two integrated aspects of intelligent behavior and we present affective-emotional mechanisms that support the adaptation to changing environments and a controlled use of
more » ... ources. These mechanisms produce an attention field that constrains the input to reasoning processes and also regulate the activation period of those processes. Experimental results are presented to illustrate this approach and to evaluate it by comparison with reference results concerning intention reconsideration policies.
doi:10.1145/1082473.1082613 dblp:conf/atal/MorgadoG05 fatcat:a2ymq7utjzfvficipjy2wz7pya

Aspectos discursivos na mídia e no ensino em diferentes temas

Maria das Graças Soares Rodrigues, Zilda Gaspar Oliveira de Aquino, Maria Eduarda Giering, Maria Inês Batista Campos
2021 Linha D'Água  
(CHARAUDEAU, 2006b, p. 71) Maria das Graças Soares Rodrigues; Zilda Gaspar Oliveira de Aquino; Maria Eduarda Giering; Maria Inês Batista Campos Todo conteúdo da Linha D'Água está sob Licença Creative  ...  A descrição e a análise do processo de implementação Maria das Graças Soares Rodrigues; Zilda Gaspar Oliveira de Aquino; Maria Eduarda Giering; Maria Inês Batista Campos Todo conteúdo da Linha D'Água está  ... 
doi:10.11606/issn.2236-4242.v34i1p1-11 fatcat:umlhtdtnlrdirbprexggtwqi3q

Tabagismo passivo e gravidade da asma brônquica na criança

Elsa Pargana, Ângela Gaspar, Cristina Santa Marta, Graça Pires, Sara Prates, Mário Morais de Almeida, José Rosado Pinto
2001 Revista Portuguesa de Pneumologia  
RESUMO Conclusion: Passive parental smoking, namely from the mother, is an significant risk factor for childhood asthma severity. The prevention of exposition must be the goal to achieve. MATERIAL E MÉTODOS I. População REV PORT PNEUMOL 2001; VII (1):
doi:10.1016/s0873-2159(15)30817-5 fatcat:lhdhp5xxqvbrnn3z76x3ksgoje

Nanoformulations of a potent copper-based aquaporin inhibitor with cytotoxic effect against cancer cells

Mariana Nave, Rui E Castro, Cecília MP Rodrigues, Angela Casini, Graça Soveral, Maria Manuela Gaspar
2016 Nanomedicine  
The lipid film was then dispersed in a Cuphen aqueous solution (500 μM) and the so-formed suspension future science group Research Article Nave, Castro, Rodrigues, Casini, Soveral & Gaspar was frozen (  ... 
doi:10.2217/nnm-2016-0086 pmid:27388811 fatcat:25kp363ihrhx5gn2olgo43qm2u
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