Computer science papers

Concentration in Business Oriented Tasks Working with IT

I denne rapport præsenteres resultaterne af et kvalitativt studie om koncentration ved forretningsorienterede opgaver med IT. Koncentration er evnen til at fokusere eller rette opmærksomhed mod ét punkt med udelukkelse af uvedkommende punkter. Målet med undersøgelsen er at afdække hvilke faktorer der indvirker på koncentration, hvilke sammenhænge der er imellem disse faktorer samt at danne teori ud fra disse observationer. Undersøgelsen tager udgangspunkt i grounded theory som præsenteret i Bacis of Qualitative Research af Anselm Strauss og Juliet Corbin. Målet er altså at danne teori fremfor at validere eksisterende hypoteser. Teoriudviklingen er baseret på otte semistrukturerede enkeltpersoninterviews af en halv til en hel times varighed. Informanterne består af tre kvinder og fem mænd i aldrene 24 - 43 år med forskellig grad af uddannelse.

Interaction Design and Information Visualization for Wall-Size Displays with User Tracking

The use of wall-size displays are becoming increasingly popular due to declining prices and high availability. However, many questions about how to effectively interact with and utilize wall-size displays still exist. Based on insight from the literature I have developed a novel interaction technique and tailored information visualization for wall-size displays. The technique utilizes users’ embodied resources such as opportunity of physical navigation and increased peripheral vision. The user is tracked relative to the display and her position and movement are used as primary method of interaction. Results of a empirical study comparing two approaches to physical navigation with a gyroscopic mouse show no significant difference between the approaches in terms of efficiency, accuracy or satisfaction. Analysis suggest that technical issues with the implementation hindered the two user tracking approaches from exploiting their full potential.

Semantic Zooming on Data Tables

This paper (in danish) presents a semantic zooming approach to visualization of data tables - specifically on time series data. The semantic approach uses a technique of collapsing cells, columns and rows to reduce the amount of information visible at one time. Collapsed cells show the underlying data in different formats such as average, average yearly growth rate, etc.

Fisheye Visualization of Source Code

This paper describes a novel approach to fisheye visualization of source code. We redefine how elements for emphasization are chosen by using a dynamically defined degree of interest function. We propose a dynamic degree of interest approach, D-DOI, derived from user interaction history.