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URWalking – pedestrian navigation with landmarks
Usually directions are given using distinctive objects like buildings as landmarks. URWalking is a research project aiming to translate this form of wayfinding to mobile navigation devices, as yet giving directions based on distances. The campus of the Universität Regensburg’s complex structure is an ideal challenge for field testing landmark navigation.
Two participations at CeBIT (2012, 2013) testify for the successful development of URWalking.
At the moment the center of the campus is being renovated, constantly causing new blockings and detours, creating nuisances especially for handicapped people. As a countermeasure specialdetour signs featuring a QR code are installed refering to the campus navigation system. Using the scanned code, it determines the user’s position and assists his journey. The underlying routing data is constantly checked and updated so that URWalking is always providing the present situation.
URWalking - Analysis of landmark-based mapping using gaze behaviour
In a subproject of URWalking various map views refering to distinctive objects were evaluated using a mobile eye tracking device. The research focussed on the reception of the interface and the surroundings while navigating indoors.
URoadworks – Examination of scalability and effort
URoadworks evaluates the scalability of URWalking’s data model and the amount of time required to implement complex modifications to the routing model. The detours due to renovations offer a realistic szenario, requiring short-term response.
Based on the usage data collected during the project, theories regarding information behaviour of people in public spaces could be empirically validated: What needs for information emerge from the construction sites? Which system responses are helpful in which situation and why? How do users familiar with the campus’s structure cope with unusual directions? Will they try to find their own short-cuts? What is the behaviour of people without local knowledge?
Prof. Dr. Bernd Ludwig
Assistant Professor for Information Science
Digital world of work
Computer assisted teaching with digital aids
Prof. Dr. Sven Hilbert
Professorship for methods of empirical educational research
Digital interactive systems
Assessment of the quality of information from the Internet
This article examines the quality of weight loss information on the German language web and studies how websites, likely to be accessed via popular web search engines, are evaluated by end users. Sixty-five websites were identified and qualitatively examined with respect to content quality as defined by the literature, as well as meta information on design and structure of the page. In a further step, the same web pages were evaluated by non-expert users in an online study. Deficiencies were found, both in terms of the quality of information on the websites, and with respect to the search behaviour and the rating competence of users. Many of the examined web pages showed little or no relevance for weight loss and 46% of the pages covered a maximum of only 3 of the 18 content criteria. Significant differences in results were identified for websites of different type. Media websites covered most criteria (M = 5.5, SD = 2.66), followed by commercial sites (M = 4.10, SD = 2.54). Nonprofit sites contained the fewest content criteria (M = 2.72, SD = 2.7), but made the least number of unsubstantiated claims and met the most design criteria. In the majority of cases, agreement between participant ratings was found to be poor to moderate. They also generally found fewer content criteria than the gold standard suggested, but gave higher quality ratings and underestimated the proportion of unsubstantiated claims. We conclude that users have low expectations for weight loss information on the Internet or are influenced by criteria other than content when assessing quality.
Selina Meyer, PD Dr. David Elsweiler & Prof. Dr. Bernd Ludwig
Chair for Information Science