In recommender systems (RSs), explicit information is often preferred over implicit because it much more accurate than or predicted information; for example, the user can enter about his interests directly into system, and system will generate recommendations him. Receiving information, however, may be difficult a system. Explicit demographic might uncomfortable some users, extremely common que...

The present study aimed at investigating the effects of explicit and implicit recasts on Iranian EFL learners' acquisition of English relative clauses. For this purpose, 64 participants were selected out of 94 intermediate level EFL learners at Falagh language Institute, Rasht, Iran. To have homogenized groups, the researcher administered a language proficiency test (TOEFL). Then, the researche...

A novel memory-based particle filter is proposed to achieve robust visual tracking of a target’s pose even with large variations in target’s position and rotation, i.e. large appearance changes. The memorybased particle filter (M-PF) is a recent extension of the particle filter, and incorporates a memory-based mechanism to predict prior distribution using past memory of target state sequence; i...

Economies with asymmetric information are encompassed by an extension of the model of general competitive equilibrium that does not require an explicit modeling of private information. Sellers have discretion over deliveries on contracts; this is in common with economies with default, incomplete contracts or price rigidities. Competitive, anonymous markets are viable. For a generic economy, the...