Introduction When we search a large text collection for documents we want, we will specify some keywords and we obtain documents containing the keywords. Because the search result contains many documents, it is important to rank them. Though some methods are proposed for ranking, they did not consider positions of the keywords. As a result, such documents sometimes may be useless because the ke...

We present a method to automatically discover meaningful features in unlabeled image collections. Each image is decomposed into semi-local features that describe neighborhood appearance and geometry. The goal is to determine for each image which of these parts are most relevant, given the image content in the remainder of the collection. Our method first computes an initial image-level grouping...

formed contractually, signs in literature are often symbolic in nature. the poems and paintings of sohrab sepehri, the contemporary iranian poet and painter, are imbued with such signs which, if decoded, are rendered more tangible and more intelligible. sepehri’s signs have their origins in nature and hindu and buddhist mysticism. with his mystical intuition and platonic aesthetics, sepehri has...

Teleradiology and remote video conferences can provide radiology residents the opportunity to participate in global outreach. We reflect on how social distancing measures education resources developed address COVID-19 were applied developing an international elective.

Globalization constitutes ideas, behavior and personality of people according to values and norms and affects different aspects of life of people (individually and socially). This research has been done in order to study the effect of globalization on moral values of the youth regarding sociology perspective. Statistical universe of this research includes 800 persons in Tehran. This research ha...