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ECIR
2011
Springer

Fusion vs. Two-Stage for Multimodal Retrieval

12 years 7 months ago
Fusion vs. Two-Stage for Multimodal Retrieval
We compare two methods for retrieval from multimodal collections. The first is a score-based fusion of results, retrieved visually and textually. The second is a two-stage method that visually re-ranks the top-K results textually retrieved. We discuss their underlying hypotheses and practical limitations, and contact a comparative evaluation on a standardized snapshot of Wikipedia. Both methods are found to be significantly more effective than single-modality baselines, with no clear winner but with different robustness features. Nevertheless, two-stage retrieval provides efficiency benefits over fusion.
Avi Arampatzis, Konstantinos Zagoris, Savvas A. Ch
Added 27 Aug 2011
Updated 27 Aug 2011
Type Journal
Year 2011
Where ECIR
Authors Avi Arampatzis, Konstantinos Zagoris, Savvas A. Chatzichristofis
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