Recommender systems suffer from the new user problem, i.e., the difficulty to make accurate predictions for users that have rated only few items. Moreover, they usually compute recommendations for items just in one domain, such as movies, music, or books. In this paper we deal with such a cold-start situation exploiting cross-domain recommendation techniques, i.e., we suggest items to a user in...

Modern recommender systems model people and items by discovering or ‘teasing apart’ the underlying dimensions that encode the properties of items and users’ preferences toward them. Critically, such dimensions are uncovered based on user feedback, often in implicit form (such as purchase histories, browsing logs, etc.); in addition, some recommender systems make use of side information, such as...

We study the cold-start link prediction problem where edges between vertices is unavailable by learning vertex-based similarity metrics. Existing metric learning methods for link prediction fail to consider communities which can be observed in many real-world social networks. Because di↵erent communities usually exhibit di↵erent intra-community homogeneities, learning a global similarity metric...

The cold start problem, frequent with recommender systems, addresses the issue in cases where we don’t know enough about our users (e.g., the user hasn’t rated anything yet, or there are no user activities) in that specific domain. In our paper we present a simple and robust transfer learning approach where we model users’ behavior in a source domain, transferring that knowledge to a new, targe...

introduction: synkinesis and facial asymmetry due to facial nerve palsy are distressing conditions that affect quality of life. unfortunately, these sequelae of facial nerve palsy are unresolved. the aim of this study was to investigate the efficacy of a combination of biofeedback therapy and botulinum toxin a (btx-a) injection for the management of synkinesis and asymmetry of facial muscles.  ...

Introduction: One of the protective concepts in the interpretation of radiation damage in radiobiology is the radioadaptive response. The objective of this present report is to evaluate the induction of radioadaptive response in male rats by injection of pre-irradiated serum with low doses X-radiation intraperitoneally.   Materials and Methods: 80 male adul...

Low-volume manufacturing remains a challenge, especially for parts that need to be injection-molded. Freeform injection molding (FIM) is novel method combines elements from direct additive (DAM) and (IM) resolve some of the challenges seen in low-volume molding. In this study, we use design science approach explore suitability FIM low volume injection-molded parts. We provide an overview benefi...

background:  multiple  sclerosis  (ms) patients permanently confronted  with serious challenges from treatment regimen. developing  a new  questionnaire in ms management, through  evaluation  of patients’ perspectives   and  knowledge   regarding   treatment  will help  to  identify the  sources  of tension, and  to  build  a therapeutic   alliance.   we   purposed   to   describe    ms patient...