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https://hdl.handle.net/2440/94602
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Type: | Journal article |
Title: | Multi-query augmentation-based web landmark photo retrieval |
Author: | Wu, L. Huang, X. Shepherd, J. Wang, Y. |
Citation: | The Computer Journal, 2015; 58(9):2120-2134 |
Publisher: | Oxford University Press |
Issue Date: | 2015 |
ISSN: | 0010-4620 1460-2067 |
Statement of Responsibility: | Lin Wu, Xiaodi Huang, John Shepherd and Yang Wang |
Abstract: | Given a query photo characterizing a location-aware landmark shot by a user, landmark retrieval is about returning a set of photos ranked in their similarities to the query. Existing studies on landmark retrieval focus on conducting a matching process between candidate photos and a query photo by exploiting location-aware visual features. Notwithstanding the good results achieved, these approaches are based on an assumption that a landmark of interest is well-captured and distinctive enough to be distinguished from others. In fact, distinctive landmarks may be badly selected, e.g. changes on viewpoints or angles. This will discourage the recognition results if a biased query photo is issued. In this paper, we present a novel technique that exploits user communities in social media networks. Given a biased query photo containing some landmarks taken by a user, we select multiple users to complement this user for retrieval. Multiple photos are then used to enrich the query photo, constituting a more representative yet robust multi-query set. A pattern mining method is developed to obtain a compact feature representation of photos from the multi-query set. Such a representation is utilized to efficiently query the database so as to improve retrieval results. Extensive experiments on real-world datasets demonstrate the effectiveness and efficiency of our approach. |
Keywords: | Web landmark retrieval; user community; latent dirichlet allocation |
Rights: | © The British Computer Society 2015. All rights reserved. |
DOI: | 10.1093/comjnl/bxv033 |
Published version: | http://dx.doi.org/10.1093/comjnl/bxv033 |
Appears in Collections: | Aurora harvest 7 Computer Science publications |
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