106,236 research outputs found
Effect of Values and Technology Use on Exercise: Implications for Personalized Behavior Change Interventions
Technology has recently been recruited in the war against the ongoing obesity
crisis; however, the adoption of Health & Fitness applications for regular
exercise is a struggle. In this study, we present a unique demographically
representative dataset of 15k US residents that combines technology use logs
with surveys on moral views, human values, and emotional contagion. Combining
these data, we provide a holistic view of individuals to model their physical
exercise behavior. First, we show which values determine the adoption of Health
& Fitness mobile applications, finding that users who prioritize the value of
purity and de-emphasize values of conformity, hedonism, and security are more
likely to use such apps. Further, we achieve a weighted AUROC of .673 in
predicting whether individual exercises, and we also show that the application
usage data allows for substantially better classification performance (.608)
compared to using basic demographics (.513) or internet browsing data (.546).
We also find a strong link of exercise to respondent socioeconomic status, as
well as the value of happiness. Using these insights, we propose actionable
design guidelines for persuasive technologies targeting health behavior
modification
The role of primitive part modelling within an integrative simulation environment
The component-based modeling approach to the simulation of HVAC systems has been in used for many years. The approach not only supports plant simulation but also allows the integration of the building and plant domains. Frequently, however, the plant models do not match exactly the types being used in a given project and where they do, may not be able to provide the required information. To address such limitations research has been undertaken into alternative approaches. The aim of such research is to provide a modeling approach that is widely applicable and offers efficient code management and data sharing. Primitive Part (PP) modeling is one such effort, which employs generic, process-based elements to attain modeling flexibility. Recent efforts have been on the development of data structure and graphics that facilitates PP auto-connection via computer interface. This paper describes the approach using an example application and its suggested role within an integrative simulation environment
Simulation synergy : expanding TRNSYS capabilities and usability
Developers of simulation packages are now able to take advantage of the increase in available desktop computing power to expand the capabilities and usability of their programs. This paper will illustrate these opportunities by discussing the different techniques the developers of the TRNSYS software package have used to try and create a synergy between TRNSYS and external programs and between the developers and users of the program
Combining different validation techniques for continuous software improvement - Implications in the development of TRNSYS 16
Validation using published, high quality test suites can serve to identify different problems in simulation software: modeling and coding errors, missing features, frequent sources of user confusion. This paper discusses the application of different published validation procedures during the development of a new TRNSYS version: BESTEST/ASHRAE 140 (Building envelope), HVAC BESTEST (mechanical systems) and IEA ECBCS Annex 21 / SHC Task 12 empirical validation (performance of a test cell with a very simple mechanical system). It is shown that each validation suite has allowed to identify different types of problems. Those validation tools were also used to diagnose and fix some of the identified problems, and to assess the influence of code modifications. The paper also discusses some limitations of the selected validation tools
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Lowering the pirate flag: a TPB study of the factors influencing the intention to pay for movie streaming services
The launch of several movie streaming services has raised new questions about how online consumers deal with both legal and illegal options to obtain their desired products. This paper investigates the factors influencing consumersâ intentions to subscribe to online movie streaming services. These services have challenged the dramatic growth in their illegal counterpart in recent years. Taking the theory of planned behavior as a starting point, we extended existing models in the literature by incorporating factors that are specific to consumer behavior in this particular field. A quantitative survey was conducted for the Italian market, and structural equation modeling was used for data analysis. Attitudes, involvement with products, moral judgement and frequency of past behavior were found to be the most important factors in explaining the intention to pay for movie streaming services. The paper provides insights for policy makers and industry managers on the marketing communication strategies needed to minimize the risk of digital piracy
Architectural implications for context adaptive smart spaces
Buildings and spaces are complex entities containing complex social structures and interactions. A smart space is a composite of the users that inhabit it, the IT infrastructure that supports it, and the sensors and appliances that service it. Rather than separating the IT from the buildings and from the appliances that inhabit them and treating them as separate systems, pervasive computing combines them and allows them to interact. We outline a reactive context architecture that supports this vision of integrated smart spaces and explore some implications for building large-scale pervasive systems
Accessible user profile modeling for academic services based on MOOCs
MOOCs are examples of the evolution of eLearning environments, it is a fact that the flexibility of the learning services allows students to learn at their own time, place and pace, enhances continuous communication and interaction between all participants in knowledge and community building, benefits people with disabilities and therefore can improve their level of employability and social inclusion. MOOCs are leading a revolutionary computer and mobile-based scenario along with social technologies that will emergence new kinds of learning applications that enhance communication and collaboration processes, for that reason a strategy of the use of metadata regarding the achievement of accessibility from content to user preferences is presented in this paper, in order to achieve a better accessibility level while designing new learning services for people with functional diversity based upon MOOCs
Pricing and Investments in Internet Security: A Cyber-Insurance Perspective
Internet users such as individuals and organizations are subject to different
types of epidemic risks such as worms, viruses, spams, and botnets. To reduce
the probability of risk, an Internet user generally invests in traditional
security mechanisms like anti-virus and anti-spam software, sometimes also
known as self-defense mechanisms. However, such software does not completely
eliminate risk. Recent works have considered the problem of residual risk
elimination by proposing the idea of cyber-insurance. In this regard, an
important research problem is the analysis of optimal user self-defense
investments and cyber-insurance contracts under the Internet environment. In
this paper, we investigate two problems and their relationship: 1) analyzing
optimal self-defense investments in the Internet, under optimal cyber-insurance
coverage, where optimality is an insurer objective and 2) designing optimal
cyber-insurance contracts for Internet users, where a contract is a (premium,
coverage) pair
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