Christos Dimou

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OBJECTIVE This study utilized an in vitro neonatal rat cardiac myocyte assay to evaluate potential differences in the response of TNF-alpha-exposed myocytes to stimulation with the adrenergic agent, epinephrine, and the phosphodiesterase III inhibitor, amrinone. DESIGN Contractility was assessed by measuring the maximum extent of the contraction of(More)
Although search engines traditionally use spiders for traversing and indexing the Web, there has not yet been any methodological attempt to model, deploy and test learning spiders. The flourishing of the semantic Web provides understandable information that may improve the accuracy of search engines. In this paper, we introduce BioSpider, an agent-based(More)
Driven by the urging need to thoroughly identify and accentuate the merits of agent technology, we present in this paper MEANDER, an integrated framework for evaluating the performance of agent-based systems. The proposed framework is based on the Agent Performance Evaluation (APE) methodology, which provides guidelines and representation tools for(More)
The field of multi-agent systems has reached a significant degree of maturity with respect to frameworks, standards and infrastructures. Focus is now shifted to performance evaluation of real-world applications, in order to quantify the practical benefits and drawbacks of agent systems. Our approach extends current work on generic evaluation methodologies(More)
In this article we perform a qualitative analysis of well-known generic ontologies according to their retrieval potential in order to implement a conceptual retrieval system. This retrieval system aims to search metadata schemes. The main problem in the implementation of retrieval system has been finding a reference ontology covering the domain and matching(More)