MEETING-DATE:April 1st, 2009
MEETING-LOCATION:DC 1331
MEETING-TIME:1:30
MEETING-CHAIR:Kate Kinnear
MEETING-CHAIRPIC:kinnear.gif
COFFEE-HOUR-LAST-WEEK:Jing and Matthew
COFFEE-HOUR-THIS-WEEK:Volunteers?
COFFEE-HOUR-NEXT-WEEK:Volunteers?
FORTH-DATE1:April 8th, 2009
FORTH-DATE2:April 15th, 2009
FORTH-DATE3:April 22nd, 2009
FORTH-DATE4:April 29th, 2009
FORTH-LOCATION1:DC 1331 1:30
FORTH-LOCATION2:DC 1331 1:30
FORTH-LOCATION3:DC 1331 1:30
FORTH-LOCATION4:DC 2303 1:30
FORTH-CHAIR1:Ben Lafreniere
FORTH-CHAIR2:Stephen Mann
FORTH-CHAIR3:Michael McCool
FORTH-CHAIR4:Zainab Meraj
FORTH-CHAIRPIC1:ben.jpg
FORTH-CHAIRPIC2:smann.jpg
FORTH-CHAIRPIC3:mmccool.jpg
FORTH-CHAIRPIC4:zainab.jpg
FORTH-TP1:Craig Kaplan
FORTH-TP2:Kate Kinnear
FORTH-TP3:Ben Lafreniere
FORTH-TP4:Stephen Mann
FORTH-TPPIC1:craig.jpg
FORTH-TPPIC2:kinnear.gif
FORTH-TPPIC3:ben.jpg
FORTH-TPPIC4:smann.jpg
TPNAME:Martin Talbot
TPTITLE:On the Audio Representation of Distance for Blind Users
TPABSTRACT:This study examines methods for displaying distance information to blind travellers using sound, focussing on abstractions of methods currently used in commercial Electronic Travel Aids (ETAs). Ten blind participants assessed three sound encodings commonly used to convey distance information by ETAs: sound frequency (Pitch), Ecological Distance (ED), and temporal variation or Beat Rate (BR). Response time and response correctness were chosen for measures.<nl><nl>Pitch variation was found to be the least effective encoding, which is a surprise because most ETAs encode distance as Pitch. Tempo, or BR, encoding was found to be superior to Pitch. ED, which was simulated by filtering high frequencies and decreasing intensity with distance, was found to be best. Grouping BR and ED redundantly slightly outperformed ED. Consistent polarity across participants was found in ED and BR but not in Pitch encoding.
TPPIC:martin.jpg
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AIONE:Meeting for April 29th will be in DC 2303
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SEMINARS:<pre><nl>2009 Apr 01, 13:30 - Algorithms and Complexity Group Seminar<nl>      Periklis Papakonstantinou, University of Toronto<nl>      A hierarchy between P and RP<nl></pre><nl><nl><pre><nl>2009 Apr 01, 16:30 - Distinguished Lecture Series Seminar<nl>      Nancy Leveson, Massachusetts Institute of Technology<nl>      Computers and Trust<nl></pre><nl><nl><pre><nl>2009 Apr 02, 10:30 - Computer Science Seminar<nl>      Martin Bravenboer, University of Massachusetts Amherst<nl>      Software Development Challenges: Abstraction and Analysis<nl></pre><nl><nl><pre><nl>2009 Apr 03, 11:30 - Artificial Intelligence Lab Seminar<nl>      Jesse Hoey (University of Dundee, Scotland)<nl>      Intelligent Devices to Engage Cognitively Disabled Older Adults in Visual Artwork<nl></pre><nl><nl><pre><nl>2009 Apr 03, 14:00 - Bioinformatics Group PhD Seminar<nl>      Christina Ann Boucher, PhD Candidate, David R. Cheriton School of Computer Science, University of Waterloo<nl>      Detecting motifs in a large data set: applying probabilistic insights to motif finding<nl></pre>