Beyond Active Noun Tagging: Modeling Contextual Interactions for Multi-Class Active Learning

We present an active learning framework to simultaneously learn appearance and contextual models for scene understanding tasks (multi-class classification). Existing multi-class active learning approaches have focused on utilizing classification uncertainty of regions to select the most ambiguous region for labeling. These approaches, however, ignore the contextual interactions between different regions of the image and the fact that knowing the label for one region provides information about the labels of other regions. For example, the knowledge of a region being sea is informative about regions satisfying the "on" relationship with respect to it, since they are highly likely to be boats. We explicitly model the contextual interactions between regions and select the question which leads to the maximum reduction in the combined entropy of all the regions in the image (image entropy). We also introduce a new methodology of posing labeling questions, mimicking the way humans ...

• Type: Conference
• Year: 2010
• Where: CVPR
• Authors: Behjat Siddiquie, Abhinav Gupta
• Keywords: Active Learning, Active Learning Framework, Computer Vision, Contextual Interactions, CVPR 2010