Background The clinical practice examination (CPX) was introduced in 2010, and the Seoul-Gyeonggi CPX Consortium developed the patient-physician interaction (PPI) assessment tool in 2004. Both institutions use rating scales on classified sections of PPI but differ in their scoring of key components. This study investigated the accuracy of standardized patient scores across rating scales by comp...

this research compared ratings of task performance and contextual performance from three different sources: self, peer, and supervisor. participants were service industry employees in the service industries in yogyakarta, indonesia. a sample of 146 employees and 40 supervisors   from the service industries provided ratings of task performance and contextual performance. the results indicated th...

The ongoing rapid development of the e-commercial and interest-base websites make it more pressing to evaluate objects’ accurate quality before recommendation by employing an effective reputation system. The objects’ quality are often calculated based on their historical information, such as selected records or rating scores, to help visitors to make decisions before watching, reading or buying...

Emergency healthcare systems in rural communities often have limited access to experienced trauma and emergency physicians. Advanced telecommunication technologies may offer an opportunity to help meet this need. We evaluated healthcare providers' satisfaction with the audio and visual components of an existing telemedicine system, and asked them whether emergency medical services (EMS) personn...

This research investigated the merits of using an established system for rating behavioral cues of involvement in human dyadic interactions (i.e., face-to-face conversation) to measure involvement in human-avatar interactions. Gameplay audio-video and self-report data from a Feasibility Trial and Free Choice study of an effective peer resistance skill building simulation game (DRAMA-RAMA™) were...

We present an open-source web-based multimodal dialog framework, “Multimodal HALEF”, that integrates video conferencing and telephony abilities into the existing HALEF cloud-based dialog framework via the FreeSWITCH video telephony server. Due to its distributed and cloud-based architecture, Multimodal HALEF allows researchers to collect video and speech data from participants interacting with ...

A new resource allocation scheme is proposed for video service over a Gaussian channel. For video quality rating, we introduce a suitable metric: the average peak signal-to-noise ratio (PSNR) or the average channel-induced PSNR degradation. Then, we model the end-to-end distortion considering the error propagation effect caused by motion compensation. On the basis of this model, we propose an e...

Recommendation: A suggestion or proposal to a user for an item, e.g., book, movie, video, news article, that is potentially interesting for the user. Recommender system: A system or engine that produces recommendations by predicting the preferences of users for certain items. Ratings matrix: Assume a set of users U and a set of items I in the recommender system. A user u 2 U might provide her p...

Video quality estimation is crucial for the efficient management of video delivery services. Particularly with the advances in screen technology and content delivery networks, getting an accurate estimation of the video quality as it is actually perceived by the user, is a key factor in delivering high quality-of-experience. Psychometric scaling provides the tools to measure the impact that dif...