Full Seminar Details

Alexei Yavlinky

Multimedia and Information Systems Group, Dept of Computing, Imperial College London

 Alexei Yavlinky
Efficient Re-indexing of Automatically Annotated Image Collections Using Keyword Combination
This event took place on Friday 20 October 2006 at 11:30

I will present a framework for improving the image index obtained by automated image annotation. Within this framework, the technique of keyword combination is used for fast image re-indexing based on initial automated annotations. It aims to tackle the challenges of limited vocabulary size and low annotation accuracies resulting from differences between training and test collections. It is useful for situations when these two problems are not anticipated at the time of annotation. I will show that based on example images from the automatically annotated collection, it is often possible to find multiple keyword queries that can retrieve new image concepts which are not present in the training vocabulary, and improve retrieval results of those that are already present. This can be done at a very small computational cost and at an acceptable performance tradeoff, compared to traditional annotation models. I will report results on TRECVID 2005, Getty Image Archive, and Web image datasets, the last two of which were specifically constructed to support realistic retrieval scenarios.

Download PowerPoint presentation (9Mb ZIP file)

Watch the webcast replay >>

Jobs

Research Assistant / Associate x 2

Knowledge Media Institute (KMi)
£29,799 - £38,833
Based in Milton Keynes
Temporary contracts until 30th June 2019

The Open University’s Knowledge Media Institute (KMi) is a distinct research unit within the Faculty of Science, Technology, Engineering and Mathematics (STEM) in the UK. KMi has openings for two Research Associate/Assistant positions to join a...

Research Assistant / Associate

Knowledge Media Institute (KMi)
£29,799 - £38,833
Based in Milton Keynes
Temporary contract until 31 December 2018

The Knowledge Media Institute (KMi) is looking for a Research Assistant or a Research Associate (depending on qualification), to work on an EU funded project – Up2U. The project will be focusing on the context of secondary schools, often referred...

Research Assistant / Associate

Knowledge Media Institute (KMi)
£29,799 - £38,833
Based in Milton Keynes
Temporary contract until 31st December 2018

The Open University’s Knowledge Media Institute (KMi) is a distinct research unit within the Faculty of Science, Technology, Engineering and Mathematics (STEM). KMi is looking for a Research Assistant or a Research Associate to work on an EU funded...

Project Officer - Data Hub Development

Knowledge Media Institute (KMi)
£32,548 - £38,833
Based in Milton Keynes
Temporary contract until 30 June 2019

The Open University’s Knowledge Media Institute (KMi) is a distinct research unit within the Faculty of Science, Technology, Engineering and Mathematics (STEM). KMi is looking for a Project Officer to support the maintenance and evolution of the MK...

CONTACT US

Knowledge Media Institute
The Open University
Walton Hall
Milton Keynes
MK7 6AA
United Kingdom

Tel: +44 (0)1908 653800

Fax: +44 (0)1908 653169

Email: KMi Support

COMMENT

If you have any comments, suggestions or general feedback regarding our website, please email us at the address below.

Email: KMi Development Team