Minimax Lower Bounds Adityanand Guntuboyina 2011 This thesis deals with lower bounds for the minimax risk in general decision-theoretic problems. Such bounds are useful for assessing the quality of decision rules. After providing a unified treatment of existing techniques, we prove new lower bounds which involve f -divergences, a general class of dissimilarity measures between probability measu...

In 2010, the Faculty of Information Sciences and Knowledge Studies founded in the University of Tehran but unfortunately it was closed down after 5 years. This faculty was established as a result of an agreement between the National Library and Archives of Iran and University of Tehran. This catastrophe, i.e. the dissolution of the faculty, was due to several changes, including: the change of t...

we examined the psychometric properties of the arabic version of the obsessive compulsive beliefs questionnaire-44 (obq-44) in a sample of kuwait university students. this questionnaire was developed by the obsessive compulsive cognitions working group in order to assess belief domains believed to be crucial in the development of obsessive compulsive symptoms.the arabic version of the obq-44 wa...

This study deals with the dynamic sales behavior of successive generations of high-technology products. New technologies diffuse through a population of potential buyers over time. Therefore, diffusion theory models are related to this demand growtfi. Furthermore, successive generations of a technology compete with earlier ones, and that behavior is the subject of models of technological substi...