Recommender systems have become significant tools in electronic commerce, proposing effectively those items that best meet the preferences of users. A variety of techniques have been proposed for the recommender systems such as, collaborative filtering and content-based filtering. This study proposes a new hybrid recommender system that focuses on improving the performance under the “new user c...

One of the biggest areas of scientific visualization (ViSC) application is Medicine: with the evolution of image acquisition techniques the capacity and fidelity of image diagnosis were extended. Due to the large number of medical exams that output images, several visualization systems have been developed dealing with specific problems in this area in the last few years. The growing of World Wi...

This research showed that appropriate input and suitable contexts for interaction among students can lead to successful  second language acquisition (SLA). This study based on Swain's (2005) notion of collaborative dialogue, aimed to study whether EFL learners participating in negotiation of meaning based tasks collaborate with each other and, if so, to investigate the role of this behavior in ...

The challenge for Track 2 of the KDD Cup 2012 competition was to predict the click-through rate (CTR) of web advertisements given information about the ad, the query and the user. Our solution comprised an ensemble of models, combined using an artificial neural network. We built collaborative filters, probability models, and feature engineered models to predict CTRs. In addition, we developed a...

Evaluation of complex, collaborative dialogue systems is a difficult task. Traditionally, developers have relied upon subjective feedback from the user, and parametrisation over observable metrics. However, both models place some reliance on the notion of a task; that is, the system is helping to user achieve some clearly defined goal, such as book a flight or complete a banking transaction. It...

The Atlantic Healthcare Collaboration for Innovation and Improvement in Chronic Disease (AHC) Quality Improvement Collaborative (QIC) in Eastern Canada provided an approach to spur system-level reform across multiple health systems for patients and families living with chronic disease. Developed and led by senior executives with a unique governance approach and involving clinical front-line tea...

Assistive technologies have widened access to the Web, by providing a non-visual representation of page content for blind individuals. However, restrictions imposed by screen readers and Braille output devices have led to the development of mental representations of a web page, which differ considerably from the visual layout. As a result, both blind and sighted users find it difficult to perfo...

When an artifact is designed the typical output consists of documents describing the final result of a long series of deliberations and tradeoffs by the participants of collaborative design (AKA concurrent engineering) teams. The underlying intent and logical support (i.e.the rationale) for the decisions captured therein is usually lost, or is represented at best as a scattered, difficult-to-ac...

This paper discusses about a phenomenon newly called as the “coauthorship hitchhiking,” a term we coined to denote the inclusion of coauthors in peer-reviewed publications without signifi cant intellectual input from these coauthors to the published works. We feel that this phenomenon has become fairly common due to increasing international research interest in Mongolia as international authors...

A novel algorithm that combines sparse and collaborative representation is proposed for target detection in hyperspectral imagery. Target detection is achieved by the representation of a testing pixel using a target library and a background library. Due to the fact that sparse representation encourages competition among atoms while collaborative representation tends to use all the atoms, the te...