NDLI: Event-related image retrieval: exploring geographical and temporal distribution of user tags

Content Provider	Springer Nature Link
Author	Ramampiaro, Heri Ruocco, Massimiliano
Copyright Year	2013
Abstract	Providing effective tools to retrieve event-related pictures within media-sharing applications, such as Flickr, is an important but challenging task. One interesting aspect is to search pictures related to a specific event with a given annotated image. Most existing methods have focused on doing this by extracting visual features from the pictures. However, pictures in media-sharing applications increasingly come with location information, such as geotags. Therefore, we stress the importance of exploring the possibility to leverage on the geographical and temporal distribution of terms in a tag-based search process, within event-related image retrieval. Specifically, we propose extended query expansion models that exploit the information about the temporal neighborhoods among pictures in a collection, and leverage on the geo-temporal distribution of the candidate expansion terms to reweight and expand the initial query. To evaluate our approach, we conduct extensive experiments on a dataset consisting of pictures from Flickr. The results from these experiments demonstrate the effectiveness of our method with respect to retrieval performance.
Starting Page	273
Ending Page	288
Page Count	16
File Format	PDF
ISSN	21926611
Journal	International Journal of Multimedia Information Retrieval
Volume Number	2
Issue Number	4
e-ISSN	2192662X
Language	English
Publisher	Springer London
Publisher Date	2013-08-25
Publisher Place	London
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Tag-based image search Image retrieval Information Storage and Retrieval Data Mining and Knowledge Discovery Image Processing and Computer Vision Computer Science Query expansion Information Systems Applications (incl. Internet) Multimedia Information Systems Spatio-temporal approach
Content Type	Text
Resource Type	Article
Subject	Library and Information Sciences Information Systems Media Technology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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