Archive for 2006

PhD position Focused Web Search

Tuesday, July 18th, 2006, posted by Djoerd Hiemstra
We have an opening for a PhD position in the Effort project: a joint project with the Information and Language Processing Group of the University of Amsterdam, and funded by the Netherlands Organisation for Scientific Research (NWO). Deadline for application: 15 September.

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]

New project member: Robin Aly

Thursday, July 6th, 2006, posted by Djoerd Hiemstra
Robin Aly has joined our group to work on audio and video retrieval. His project is sponsored by the CTIT SRO NICE (Strategic Research Orientation: Natural Interaction in Computer-mediated Environments). In this project we will closely cooperate with people from the Human Media Interaction group.

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.

[XML & Databases 2]: Finalizing the projects

Tuesday, June 13th, 2006, posted by Djoerd Hiemstra
Because of small delays for several projects, exam stress, and tropical temperatures, there will be no final project presentations in the exam period this year. Instead, we will ask some the project groups to give a short presentation to members of the Database Group. We will be lenient on the deadline of 30 June as long as we know that you are still actively working on the project. Please send us as soon as possible the status of your project and the date you plan to send in the paper.

[XML & Databases 2]: Action points after todays kick-off meeting

Tuesday, April 25th, 2006, posted by Djoerd Hiemstra
Please take the following actions:
  • Choose an assignment, preferably in groups of two students
  • Report your decision by email to both Maurice van Keulen and Djoerd Hiemstra
  • One group per assignment: first come, first serve
  • Deadline: 28 april 2006
In the Archive section on TeleTOP you can find additional information for each project assignment.

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.

PFTijah is up and running!

Wednesday, April 12th, 2006, posted by Djoerd Hiemstra
We’ve run our first NEXI query on the combined system! The NEXI query is compiled from within XQuery, executed, and the results are stored in a BAT. Jan is now working on relating the results back to Pathfinder nodes.

[XML & Databases 2]: Kick-off Meeting on Tuesday 25 April

Monday, April 10th, 2006, posted by Djoerd Hiemstra
The kick-off meeting of the course XML & Databases 2 (211086) takes place on:
Tuesday 25 April at 9:00 h. - 10.30 h. in room ZI-5126.
At this meeting we will present the research projects and plan further meetings. Please notify us as soon as possible if you are unable to attend.