Distributed Computing and Systems Research Group
Distributed Computing and Systems
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Seminars 2000 | Archived Seminars | Back to About

The group runs a weekly seminar series, covering papers, projects, and events related with our research. These seminars are open to anyone on Chalmers or GU who wishes to attend.

Seminars 2000

Current seminar series coordinator: Daniel Cederman.

DateTimeLocationSpeakerRefreshment OrganizerTitle + Abstract
må, dec 413.30S4HåkanYiSimple and Fast Wait-Free Snapshots for Real-Time Systems[Paper 1,Paper 2]
Håkan will present "Simple and Fast Wait-Free Snapshots for Real-Time Systems" by H Sundell, Ph Tsigas and Y Zhang and "Space Efficient Wait-Free Buffer Sharing in Multiprocessor Real-Time Systems Based on Timing Information" by H Sundell and Ph Tsigas.
må, nov 2713.30S4BorisMarinaLYDIAN[Lydian]
LYDIAN: An Extensible Educational AnimationEnvironment for Learning Distributed Algorithms
må, nov 2013.30S4David ModjeskaBorisHierarchical Data Visualization in Desktop Virtual Reality
While desktop virtual reality (VR) offers a way to visualize structure in large information sets, there have been relatively few empirical investigations of visualization designs in this domain. This seminar reports the development and testing of a series of prototype desktop VR worlds, which were designed to support navigation during information visualization and retrieval. Four methods were used for data collection: search task scoring, subjective questionnaires, navigational activity logging and analysis, and administration of tests for spatial and structure-learning ability. The combination of these research methods revealed significant effects of user abilities, information environment designs, and task learning. The first of four studies compared three versions of a structured virtual landscape, finding significant differences in sense of presence, ease of use, and overall enjoyment; there was, however, no significant difference in performance among the three landscape versions. The second study found a hypertext interface to be superior to a VR interface for task performance, ease of use, and rated efficiency; nevertheless, the VR interface was rated as more enjoyable. The third study used a new layout algorithm; the resulting prototype was rated as easier to use and more efficient than the previous VR version. In the fourth study, a zoomable, map-like view of the newest VR prototype was developed. Experimental participants found the map-view superior to the 3D-view for task performance and rated efficiency. Overall, this research did not find a performance advantage for using 3D versions of VR. In addition, the results of the fourth study found that people in the lowest quartile of spatial ability had significantly lower search performance (relative to the highest three quartiles) in a VR world. This finding suggests that individual differences for traits such as spatial ability may be important in determining the usability and acceptability of VR environments. In addition to the experimental results summarized above, this research also developed and refined a methodology for investigating tasks, users, and software in 3D environments. This methodology included tests for spatial and structure-learning abilities, as well as logging and analysis of a user's navigational activities.
må, nov 1313.00Henry Wallman (ED)Björn Andersson-Multiprocessor Scheduling[Paper 1,Paper 2]
Henry will present the papers "Some Insights on Fixed-Priority Preemptive Non-Partitioned Multiprocessor Scheduling" and "Fixed-Priority Preemptive Multiprocessor Scheduling: To Partition or not to Partition".
må, nov 613.30S4HåkanPhilippas12th Euromicro conference on Real-Time Systems[Website]
12th Euromicro conference on Real-Time Systems
må, okt 3013.30S4BorisHåkanITiSCE 2000 report[Proceedings]
ITiSCE 2000 report
må, okt 2313.30S2PhilippasYiEuropar 2000 report[Report]
Europar 2000 report

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Archived Seminars

Use the following links to get access to the seminar schedules of previous years: 2008, 2007, 2006, 2005, 2004, 2003, 2002, 2001, 2000.

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Chalmers university of technology, Computing Science Department
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Phone: +46 (0)31-772 1000 (central), +46 (0)31-16 56 55