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)
Web crawling has become an important aspect of web search, as the WWW keeps getting bigger and search engines strive to index the most important and up to date content. Many experimental approaches exist, but few actually try to model the current behaviour of search engines, which is to crawl and refresh the sites they deem as important, much more(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)
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)
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)
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)
Shadi Abras Guruprasad Airy Marco Alberti Eric Andonoff Sandra Baldassarri Daniel Le Berre Magnus Boman A. Byrski Baki Cakici Thomas Carroll Sara Casare Roberto Centeno Sofia Ceppi Walid Chainbi Kyriakos C. Chatzidimitriou Shih-Fen Cheng Mika Cohen Antônio Carlos da Rocha Costa Ludivine Crépin Christos Dimou Julie Dugdale Patricia Everaere Jonathan Ezekiel(More)