Imaginons que sur une planète éloignée qui s'appelle Marth, les symboles utilisés pour écrire les livres de mathématiques sont les seuls chiffres de 0 à 9. Il est bien connu que dans ces livres il n'y a que des vérités énoncées par des théorèmes. Un théorème Marthien ressemble donc à ceci : "108502054952". Pour nous cela est un nombre de 12 chiffres. Pour les Marthiens, ce n'est pas un nombre m...

It is well known that North Korea has been suffering from acute economic crises since the 1990's. Although the country's food shortage was revealed in 1995, North Korea had already been confronted with economic difficulties by then. The difficulties appear to have been chiefly caused by three changes in external trade patterns of North Korea. Firstly, at the beginning of the 1990's, North Korea...

We compare the experimental results of three stag-hunt games. In contrast to Battalio et al. (2001), our design keeps the riskiness ratio of the payoff-dominant and the risk-dominant strategies at a constant level as the optimisation premium is increased. We define the riskiness ratio as the relative payoff range of the two strategies. We find that decreasing the riskiness We would like to than...

Computer role-playing games (CRPGs) have strong narratives, but in general lack a density of interesting and meaningful choices for the player within the story. We have identified two main components of player interaction within the story—quests and character interaction—to address in a new playable experience, Mismanor. In this paper we focus on the character interaction aspect. In particular,...

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An action X x A^ —> X : (x.w) *—• x * w ofthefree semigroup A^~ over the alphabet A is synchronised by a word w G A + if x * w = y * w for ail x}y £ X. Cerny conjecturée that if there is such a w and \X\ = n, then there is one oflength < (n l ) 2 . The conjecture remains open, except for particular classes of actions. An action is circular if there is c G A acting as a circular permutation, and...

This paper describes an original approach which jointly addresses two fundamental issues of video partitioning which represent the early important stage of any content-based video indexing system. These two issues are the detection of shot changes, and the labeling of the shot connguration related to the camera movement in terms of static shot, panning, traveling, zooming,... They are both deri...