A decrease in cloud cover over higher latitudes—a decrease in the extratropical albedo—especially over the Southern Ocean, can result in an extratropical and tropical warming with the intensity of the equatorial cold tongues in the Pacific and Atlantic basins decreasing. These results, obtained by means of a coupled ocean–atmosphere model of intermediate complexity that allow the prescription o...

Although demonstrated to be efficient and scalable to large-scale data sets, clustering-based recommender systems suffer from relatively low accuracy and coverage. To address these issues, we develop a multiview clustering method through which users are iteratively clustered from the views of both rating patterns and social trust relationships. To accommodate users who appear in two different c...

In this paper, we study a cold-start problem in recommendation systems where we have completely new users entered the systems. There is not any interaction or feedback of the new users with the systems previoustly, thus no ratings are available. Trivial approaches are to select ramdom items or the most popular ones to recommend to the new users. However, these methods perform poorly in many cas...

Recommending new items to existing users has remained a challenging problem due to absence of user’s past preferences for these items. The user personalized non-collaborative methods based on item features can be used to address this item cold-start problem. These methods rely on similarities between the target item and user’s previous preferred items. While computing similarities based on item...

Traditional Recommender Systems (RS) do not consider any personal user information beyond rating history. Such information, on the other hand, is widely available on social networking sites (Facebook, Twitter). As a result, social networks have recently been used in recommendation systems. In this paper, we propose an efficient method for incorporating social signals into the recommendation pro...

نوآوری در نتیجه ترکیبی از عناصر دانش سازمان‌ها ظاهر شده و به‌عنوان ماده خام اصلی برای نظر گرفته می‌شود. روش‌های سنتی دیگر اثربخش نیست به رویکردهای جدید همچو نیاز است. هدف پژوهش حاضر ، بررسی تأثیر قابلیت‌های مدیریت بر عملکرد با اثر میانجی باز است که 25 واحد‌ فناور مستقر «پارک فناوری پردیس» واقع شهر پردیس استان تهران نیمه دوم سال 1399 موردبررسی قرار گرفت. به‌منظور جمع‌آوری داده‌ها ابزار پرسشنامه ...