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Eigentaste is a collaborative filtering algorithm that uses universal queries to elicit real-valued user ratings on a common set of items and applies principal component analysis (PCA) to the resulting dense subset of the ratings matrix. PCA facilitates dimensionality reduction for offline clustering of users and rapid computation of recommendations. For a(More)
Frailty is of increasing concern due to the associated decrease in independence of elderly who suffer from the condition. An innovative system was designed in order to objectively quantify the level of frailty based on a series of remote tests, each of which used objects similar to those found in peoples' homes. A modified ball, known as the Grip-ball was(More)
Jester is a WWW-based system that allows users to retrieve jokes based on their ratings of sample jokes. Our emphasis is on a new principal component analysis (PCA) and clustering-based linear time collaborative filtering algorithm for efficient and effective personalized information retrieval. Let m be the number of users in the database (currently over(More)
1. INRODUCTION Jester 2.0 is a WWW-based system that allows users to retrieve jokes baaed on their ratings of sample jokes. It predicts the humor preferences of a user and presents a set of jokes that the user might find “funny”. The heart of the recommendation scheme is a new principal component analysis (PCA) and clustering-based linear time collaborative(More)
Objective We aimed to evaluate variability in Apgar score (AS) assignment among health care providers (HCPs) and to evaluate whether a simple clarification improves accuracy and consistency of AS assignment. Study Design An electronic questionnaire survey was provided to pediatric residents, nurse practitioners, neonatal fellows, and faculty in level III(More)
OBJECTIVE This study aims to examine the association between measures of hypercapnia and fluctuation in Pco 2 and severe intraventricular hemorrhage (IVH) and to evaluate the prevalence of hypercapnia, hypocapnia, and fluctuations in Pco 2 in the initial 72 hours of life among premature infants. STUDY DESIGN Retrospective study of premature infants with(More)
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