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Dive into the research topics where Ingvar Tjøstheim is active.

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Featured researches published by Ingvar Tjøstheim.


information and communication technologies in tourism | 2007

Combination of Information Sources in Travel Planning A Cross-national Study

Ingvar Tjøstheim; Iis P. Tussyadiah; Sigrid Oterholm Hoem

This paper presents results from a study about the Internet as an information source for travel planning based on interviews with travelers in 13 countries in 2005. In 1997, a similar large scale survey was carried out in 15 European countries. The study shows a dramatic but well known change in information sources used by travelers since 1997. The Internet has become the most preferred information source by approximately 50% of the travelers. Travelers using the Internet as their primary source of information mostly combine it with other sources such as friends and relatives, brochures, guidebooks, and travel agents. A logistic regression analysis was performed in order to study the significance of demographics and countries on the preference of Internet as the first information source.


information and communication technologies in tourism | 2008

Mobile Devices as Substitute or Supplement to Traditional Information Sources: City Tourists, Mobile Guides and GPS navigation

Ingvar Tjøstheim; Daniel R. Fesenmaier

New mobile phones and navigation devices are very powerful. In this paper an ethnographic approach is used to gain insight in how one of these devices, a multimedia-phone with GPS, maps and a mobile guide is used by visitors to the city of Philadelphia. An interesting finding is that some of the visitors seem to substitute traditional information sources with the navigation and map-tool on the mobile device. Also, the study documents point of capture archiving of personal experiences by use of a mobile multimedia device.


international conference on human-computer interaction | 2013

Increasing Trust Perceptions in the Internet of Things

Trenton Schulz; Ingvar Tjøstheim

When interacting with objects and services in the Internet of Things, people will need to trust that their data is safe, and that “things” will do what they promise they will do. As part of a user evaluation of a toolkit for providing security and privacy information to users, we created two models to find a pattern in changes in the perception of trust in the participants. The model based on demographics was not very descriptive. But, the model based on participants’ privacy concerns and trust traits revealed a good match between changes in trust based on information from our toolkit. While there were some limitations in the current study, it showed how TFT can be improved for future evaluations.


quality of multimedia experience | 2015

The role of emotion and enjoyment for QoE — A case study of a science centre installation

Ingvar Tjøstheim; Wolfgang Leister; Trenton Schulz; Andreas Larssen

We performed a user evaluation in a science centre to uncover the impact of emotion and enjoyment on the perceived Quality of Experience. In an evaluation with 60 students, we assessed data from the use of an installation and relate Positive And Negative Affect Schedule (PANAS) scales and other subjective and objective data using the partial least square methodology. We present interpretations for how participants, winners, and losers of a quiz game in the science centre experience their visit.


PESARO 2015, The Fifth International Conference on Performance, Safety and Robustness in Complex Systems and Applications | 2015

Towards Assessing Visitor Engagement in Science Centres and Museums

Wolfgang Leister; Ingvar Tjøstheim; Trenton Schulz; Norsk Regnesentral


human computer interaction with mobile devices and services | 2018

Similar Information Privacy Behavior in 60-65s vs. 50-59ers - Findings From A European Survey on The Elderly

Ingvar Tjøstheim; Lothar Fritsch


arXiv: Computers and Society | 2018

Which Generation Shows the Most Prudent Data Sharing Behaviour

Wolfgang Leister; Ingvar Tjøstheim


Multimodal Technologies and Interaction | 2017

An Evaluation-Driven Design Process for Exhibitions

Wolfgang Leister; Ingvar Tjøstheim; Göran Joryd; Michel de Brisis; Syver Lauritzsen; Sigrun Reisæter


Archive | 2016

Research Directions for Studying Users’ Privacy Awareness

Ingvar Tjøstheim; Wolfgang Leister; Heidi Mork; Lothar Fritsch


GLOBAL HEALTH 2016, The Fifth International Conference on Global Health Challenges | 2016

Towards Evidence-Based Self-Management for Spondyloarthritis Patients

Wolfgang Leister; Camilla Fongen; Dag Soldal; Kåre Birger Hagen; Trenton Schulz; Aleksander Bai; Liming Chen; Carl-Henrik Franke; Ingvar Tjøstheim; Lars Thomas Boye; Vebjørn Berre; Nina Østerås; Jon Hagfors; Jan Halvard Relbe-Moe; Hanne Dagfinrud

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Wolfgang Leister

Norwegian Computing Center

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Trenton Schulz

Norwegian Computing Center

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Lothar Fritsch

Norwegian Computing Center

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Ivar Solheim

Norwegian Computing Center

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Joachim Lous

Norwegian Computing Center

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Liming Chen

De Montfort University

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