Social networks have become the main infrastructure of today’s daily activities of people during the last decade. In these networks, users interact with each other, share their interests on resources and present their opinions about these resources or spread their information. Since each user has a limited knowledge of other users and most of them are anonymous, the trust factor plays an import...

Recent years witnessed a rapid growth of multimedia technologies for offering information and services on the internet. One of the many problems that are to be faced in this context is the great variety of possible users and the consequent need to adapt both the presentation of information and the interaction to the specific user's characteristics. There is a general agreement that an adaptive ...

User simulation is essential for generating enough data to train a statistical spoken dialogue system. Previous models for user simulation suffer from several drawbacks, such as the inability to take dialogue history into account, the need of rigid structure to ensure coherent user behaviour, heavy dependence on a specific domain, the inability to output several user intentions during one dialo...

We have developed a class of mobile applications that monitor and assist users with their tasks in time and space. The applications provide users with suggestions and reminders based on derived user intent. User intentions are derived from calendar and to-do list entries and are placed in time and space based on user context and availability for the suggested tasks, and the availability of reso...

OBJECTIVE Many jurisdictions in the USA and globally are considering raising the prices of sugar-sweetened beverages (SSB) through taxes as a strategy to reduce their consumption. The objective of the present study was to identify whether the rationale provided for an SSB price increase affects young adults' behavioural intentions and attitudes towards SSB. DESIGN Participants were randomly a...

Abstract Social media enables users to share their purchase experiences. Nevertheless, video content marketing tactics enable companies influence the attitudes of online shoppers increase intentions. The paper solves research problem using differentiate between brand and user-generated videos positive customer purchasing intention in case Instagram. It aims find differences videos, which determ...

Background Digital media technologies provide users with the ability to interact content and receive information based on their preferences engagement. Objective We used skin cancer sun protection as a health topic explore how modality interactivity, interface tools that afford greater activity, resulting in depth breadth of mentally representing experiencing mediated content, message extent wh...

Abstract Personalizing gameful applications is essential to account for interpersonal differences in the perception of design elements. Considering that an increasing number people lead sedentary lifestyles, using personalized encourage physical activity a particularly relevant domain. In this article, we investigate behavior change intentions and Hexad user types as factors personalize fitness...

Two interfaces, co-created by designers and people living in eco-villages, were tested for their effects on end-user energy-use rescheduling intentions.When analysed with Signal Detection Theory both interfaces were implicated in biased user responses, but in opposite directions.Despite some favourablebehavioural effects the majority of the 75 respondents chose not to reschedule their energy-us...