Martin Steiger

Learn More
We present a system to analyze time-series data in sensor networks. Our approach supports exploratory tasks for the comparison of univariate, geo-referenced sensor data, in particular for anomaly detection. We split the recordings into fixed-length patterns and show them in order to compare them over time and space using two linked views. Apart from(More)
The characteristics of acute deterioration in truncal movements, posture and gait were studied in patients admitted with acute non-neurological disease. Reversible gait abnormalities with characteristics of a 'lower-half parkinsonism' were associated with a disorder of axial movement, disability (as assessed by an activities of daily living score), and low(More)
In this paper we analyze different layout algorithms that preserve relative directions in geo-referenced networks. This is an important criterion for many sensor networks such as the electric grid and other supply networks, because it enables the user to match the geographic setting with the drawing on the screen. Even today, the layout of these networks(More)