Information Interaction Intelligence – Revue I3 PDF

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Volume 9, n°2, 2009 Contents / Sommaire Editorial Laurence Cholvy et Sébastien Konieczny ………………………………… 7 Une nouvelle stratégie de mise sous forme prénexe pour des formulas booléennes quantifiées avec bi-implications Benoit Da Mota, Igor Stéphan, Pascal Nicolas …………………………. 9 Pondérations, collisions et préservation de la majorité en logique des pénalités Nathalie Chetcuti-Sperandio, Sylvain Lagrue …………………………… ………………………..31 Sémantique de la révision locale de croyances par le modèle C-structure Omar Doukari, Robert Jeansoulin, Eric Würbel 51 A definition of agent-oriented relevance in modal logic Stéphanie Roussel, Laurence Cholvy …………………………………….. 89 Traiter automatiquement les exceptions en introduisant la spécificité en ASP Laurent Garcia, Pascal Nicolas, Stéphane Ngoma ………………… …………………………. 117 Fusion par R-ensembles : une méthode complète de fusion Julien Hué, Odile Papini, Eric Würbel ……….. 139

Ryukin goldfish, Plate XIX in: Goldfish and Their Culture in Japan, by Shinnosuke Matsubara. A drawing in brown ink on an ocher background. A rectangular glass aquarium tank sits on a wooden stand with carved, curled legs, and contains two fish as well as plants with wavy grass-like leaves. People began to breed the gold variety instead of the silver variety, keeping them in ponds or other bodies of water. In 1162, the empress of the Song Dynasty ordered the construction of a pond to collect the red and gold variety. During the 1620s, goldfish were highly regarded in southern Europe because of their metallic scales, and symbolised good luck and fortune. It became tradition for married men to give their wives a goldfish on their first anniversary, as a symbol for the prosperous years to come.

This tradition quickly died, as goldfish became more available, losing their status. Goldfish have one of the most studied senses of vision in fish. Goldfish have four kinds of cone cells, which are respectively sensitive to different colours: red, green, blue and ultraviolet. Goldfish have strong associative learning abilities, as well as social learning skills. In addition, their visual acuity allows them to distinguish between individual humans. Goldfish that have constant visual contact with humans also stop considering them to be a threat.