Archive for the 'Colloquia' Category

Joint HMI and DB colloquium, Friday 21 July, 14:00 h.-14:45 h. in ZI-2126

Tuesday, July 18th, 2006, posted by Djoerd Hiemstra

The Potential of User Feedback through the Iterative Refining of Queries in an Image Retrieval System

by Maher Ben Moussa and Marco Pasch

Inaccurate or ambiguous expressions in queries lead to poor results in information retrieval. We assume that iterative user feedback can improve the quality of queries. To this end we developed a system for image retrieval that utilizes user feedback to refine the user’s search query. This is done by a graphical user interface that returns categories of images and requires the user to choose between them in order to improve the initial query in terms of accuracy and unambiguousness. A user test showed that, although there was no improvement in search time or required search restarts, iterative user feedback can indeed improve the performance of an image retrieval system in terms of user satisfaction.

Maher and Marco are M.Sc. students at the University of Twente. They will present their work at the fourth International Workshop on Adaptive Multimedia Retrieval (AMR) in Geneva, Switzerland.

[download pdf]

DB master students colloquium, Friday 30 June at 13:30 h.

Friday, June 23rd, 2006, posted by Djoerd Hiemstra
DB master students colloquium, Friday 30 June at 13:30 h. - 14:30 h. in L-200

The following people will present (please note that room and time are not the same as usual):

  • Yelei Zhang: Index processing for complex event detection
  • Gert-Jan Poulisse: Compression and preprocessing of mammograms
At 15.00 that day there will be Design Project presentations and there will be drinks at about 16.00 to close the year. Hope to see all of you there!

LEGO 3D Object Recognition

Friday, June 23rd, 2006, posted by Djoerd Hiemstra
Design project presentation, Monday 26 June at 14:30 h - 15.15 h. ZI-3126
by Sander van Loon, Bastiaan van den Berg, Vincent Groenhuis, Frank Zijlstra, Andre van Herk.

Abstract (in Dutch): Het doel van de LEGO 3DORopdracht was, een (LEGO) systeem te bouwen waarmee willekeurige objecten ingescand kunnen worden en er een driedimensionale, digitale representatie te maken. Door een LEGO Mindstorms systeem te gebruiken, in combinatie met visualisatieapparatuur (een camera, infrarood/afstandssensor, voelspriet, etc.) moest een driedimensionaal model worden opgebouwd dat een computer kan weergeven (bij voorkeur het systeem dat de scan heeft uitgevoerd). In deze presentatie wordt het ontwerp van het systeem toegelicht. Aansluitend om 15.45 u. is er een demonstratie van het systeem tijdens de vijfde Twente Student Conference in ZI-Oostzaal.

DB master students colloquium, Friday 28 April, 14:00 h. room ZI-4126

Friday, April 21st, 2006, posted by Djoerd Hiemstra
On Friday’s master students colloquium on 28 April 14.00 h. in room ZI-4126, the following people will present:
  • Dirk Kemper: “Fraud detection for Triple Deal Payment Services”
  • Arend-Jan Tetteroo: “A Bomb-proof Database Server for Technolution”
We will start with a quick round in which other students give a 1 minute report of what they’ve done this month and what they are up to.

DB master students colloquium, Friday 31 March, 14:00 h. room ZI-3126

Friday, March 24th, 2006, posted by Djoerd Hiemstra
On Friday’s master students colloquium on 31 March 14.00 h. in room ZI-3126, Remco de Vos will talk about the schema matching LSD system. We will start with a quick round in which other students give a 1 minute report of what they’ve done this month and what they are up to.

DB master students colloquium, Friday 24 February, 14:00 h.

Friday, February 17th, 2006, posted by Djoerd Hiemstra
On Friday’s master students colloquium on 24 Februay 14.00 h. in room ZI-3126, the following people will present:
  • Robin Zagers will talk about his work at Gladior on optimizing on-line marketing using information gathered on page visits.
  • Harold van Heerde will talk about his final assignment on privacy policies for ambient intelligence.

DB master students colloquium, Friday 27 January at 13:45 h.

Thursday, January 19th, 2006, posted by Djoerd Hiemstra
DB Master Students Colloquium Friday 27 January at 13:45 h - 14.30 h. ZI-3126

Jan van Dijk will present his work on designing a datawarehouse for the Dutch Ministry of Justice.

[Information Retrieval]: 16 November: Guest lecture by Vassilis Plachouras

Tuesday, November 1st, 2005, posted by Djoerd Hiemstra
Vassilis Plachouras from the University of Glasgow will present the architecture and implementation of the Terrier information retrieval system developed at the University of Glasgow.

Where: Ravelijn Studio
When: 16 November 2005, 13.45 h. - 15.30 h.
What: Terrier: A Practical Overview.

[Information Retrieval]: 26 October: Guest lecture by Mounia Lalmas

Monday, October 17th, 2005, posted by Djoerd Hiemstra
Prof. Mounia Lalmas from Queen Mary University will present an overview of approaches for structured retrieval from XML data. Mounia Lalmas is one of the coordinators of the Initiative for the Evaluation of XML Retrieval (INEX).

Where: Ravelijn Studio
When: 26 October 2005, 13.45 h. - 15.30 h.
What: XML Retrieval

[Information Retrieval]: 19 October: Guest lecture by Arjen de Vries

Tuesday, October 11th, 2005, posted by Djoerd Hiemstra
Arjen de Vries from CWI Amsterdam will give a guest lecture on Multimedia Retrieval.

Where: Ravelijn Studio
When: 19 October 2005, 13.45 h. - 15.30 h.
What: Multimedia Retrieval