In this paper we discuss how location-based mobile games can be designed for learning in modern technology enhanced public spaces. We start with the description of the design process and we identify the main challenges faced. We elaborate the case of the game Invisible City: Rebels vs. Spies, a game to be played in a city centre using mobile devices. Through this case we highlight the adaptatio...

This is a survey of results on universal algorithms for classification and prediction stationary processes. The problems include discovering the order k-step Markov chain, determining memory words in finitarily Markovian processes estimating entropy an unknown process. cover both discrete real valued variety situations. Both forward backward are discussed with emphasis being pointwise results. ...

the iranian civil code has limited the effects of unknown condition to nullification of such condition provided that it results in ignorance with respect to consideration. the code conveys no explicit provision concerning the effect of such condition not resulting in the ignorance. unknown condition refers to a condition on which there is not complete and comprehensive knowledge. this article l...