in recent years, collaborative filtering (cf) methods are important and widely accepted techniques are available for recommender systems. one of these techniques is user based that produces useful recommendations based on the similarity by the ratings of likeminded users. however, these systems suffer from several inherent shortcomings such as data sparsity and cold start problems. with the dev...

although explicit and implicit knowledge of language learners are essential to theoretical and pedagogical debates in second language acquisition (sla), little research has addressed the effects of instructional interventions on the two knowledge types (r. ellis, 2005).this study examined the relative effectiveness of explicit and implicit types of form-focused instruction (ffi) on the acquisit...

Belief updating schemes in artificial intelligence may be viewed as three dimensional languages, consisting of a syntax (e.g. probabilities or certainty factors), a calculus (e.g. Bayesian or CF combination rules), and a semantics (i.e. cognitive interpretations of competing formalisms). This paper studies the rational scope of those languages on the syntax and calculus grounds. In particular, ...

Collaborative filtering(CF) for the personalized recommendation is a successful and popular method in recommender systems. But the mainly researched and implemented cases focus on dealing with independent items with explicit feedback by users. For the domain of TV program recommendation in VOD service platform, we need to consider the unique characteristic and constraints of the domain. In this...

Representation learning-based collaborative filtering (CF) methods address the linear relationship of user-items with dot products and cannot study latent nonlinear applied to implicit feedback. Matching function CF directly learn complicated mapping functions that map user-item pairs matching scores, which has limitations in identifying low-rank relationships. To this end, we propose a deep re...

objectives: cerebral hemispheres functioning have been found to be abnormal in children with asd. the role of lateralization in implicit and explicit motor learning has received little attention in asd researches. the main goal of this study is investigating the differences between two hands implicit and explicit motor learning in children with asd and typical matched group. methods: in the pre...