Publication Type

Journal Article

Publication Date

3-2017

Abstract

High quality tags play a critical role in applications involving online multimedia search, such as social image annotation, sharing and browsing. However, user-generated tags in real world are often imprecise and incomplete to describe the image contents, which severely degrades the performance of current search systems. To improve the descriptive powers of social tags, a fundamental issue is tag relevance learning, which concerns how to interpret the relevance of a tag with respect to the contents of an image effectively. In this paper, we investigate the problem from a new perspective of learning to rank, and develop a novel approach to facilitate tag relevance learning to directly optimize the ranking performance of tag-based image search. Specifically, a supervision step is introduced into the neighbor voting scheme, in which the tag relevance is estimated by accumulating votes from visual neighbors. Through explicitly modeling the neighbor weights and tag correlations, the risk of making heuristic assumptions is effectively avoided. Besides, our approach does not suffer from the scalability problem since a generic model is learned that can be applied to all tags. Extensive experiments on two benchmark datasets in comparison with the state-of-the-art methods demonstrate the promise of our approach.

Keywords

Learning to rank, Neighbor voting, Tag relevance learning, Tag-based image search

Discipline

Computer Sciences | Databases and Information Systems

Research Areas

Data Management and Analytics

Publication

Multimedia Tools and Applications

Volume

76

Issue

6

First Page

8831

Last Page

8857

ISSN

1573-7721

Identifier

10.1007/s11042-016-3512-1

Publisher

Springer Verlag

Copyright Owner and License

Authors

Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

Additional URL

http://doi.org/10.1007/s11042-016-3512-1

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