Segregated feedback with performance-based adaptive sampling for interactive news video retrieval

HB Luan, SY Neo, HK Goh, YD Zhang, SX Lin… - Proceedings of the 15th …, 2007 - dl.acm.org
HB Luan, SY Neo, HK Goh, YD Zhang, SX Lin, TS Chua
Proceedings of the 15th ACM international conference on Multimedia, 2007dl.acm.org
Existing video research incorporates the use of relevance feedback based on user-
dependent interpretations to improve the retrieval results. In this paper, we segregate the
process of relevance feedback into 2 distinct facets:(a) recall-directed feedback; and (b)
precision-directed feedback. The recall-directed facet employs general features such as text
and high level features (HLFs) to maximize efficiency and recall during feedback, making it
very suitable for large corpuses. The precision-directed facet on the other hand uses many …
Existing video research incorporates the use of relevance feedback based on user-dependent interpretations to improve the retrieval results. In this paper, we segregate the process of relevance feedback into 2 distinct facets: (a) recall-directed feedback; and (b) precision-directed feedback. The recall-directed facet employs general features such as text and high level features (HLFs) to maximize efficiency and recall during feedback, making it very suitable for large corpuses. The precision-directed facet on the other hand uses many other multimodal features in an active learning environment for improved accuracy. Combined with a performance-based adaptive sampling strategy, this process continuously re-ranks a subset of instances as the user annotates. Experiments done using TRECVID 2006 dataset show that our approach is efficient and effective.
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