A Long-Term Learning-Based Dynamic User Model in Image Retrieval

2005 ◽  
Vol 16 (2) ◽  
pp. 233
Author(s):  
Liang ZHANG
Keyword(s):  
Image Retrieval ◽  
User Model

A Scalable Graph-Based Semi-Supervised Ranking System for Content-Based Image Retrieval

2013 ◽  
Vol 4 (4) ◽  
pp. 15-34
Author(s):  
Xiaojun Qi ◽  
Ran Chang
Keyword(s):  
Image Retrieval ◽  
Semantic Features ◽  
Dynamic Feedback ◽  
Ranking System ◽  
Retrieval Systems ◽  
Feature Based ◽  
Semantic Spaces ◽  
Supervised Ranking ◽  
High Level

The authors propose a scalable graph-based semi-supervised ranking system for image retrieval. This system exploits the synergism between relevance feedback based transductive short-term learning and semantic feature-based long-term learning to improve retrieval performance. Active learning is applied to build a dynamic feedback log to extract semantic features of images. Two-layer manifold graphs are then built in both low-level visual and high-level semantic spaces. One graph is constructed at the first layer using anchor images obtained from the feedback log. Several graphs are constructed at the second layer using images in their respective cluster formed around each anchor image. An asymmetric relevance vector is created for each second layer graph by propagating initial scores from the first layer. These vectors are fused to propagate relevance scores of labeled images to unlabeled images. The authors’ extensive experiments demonstrate the proposed system outperforms four manifold-based and five state-of-the-art long-term-based image retrieval systems.

Sign in / Sign up

Export Citation Format

Share Document