Relevance feedback is a widely adopted approach to improve content-based information retrieval systems by keeping the user in the retrieval loop. Among the fundamental relevance feedback approaches, feature space warping has been proposed as an effective approach for bridging the gap between high-level semantics and the low-level features. Recently, combination of feature space warping and query point movement techniques has been proposed in contrast to learning based approaches, showing good performance under dierent data distributions. In this paper we propose to merge feature space warping and transductive learning, in order to benet from both the ability of adapting data to the user hints and the information coming from unlabeled samples. Experimental results on an image retrieval task reveal signicant performance improvements from the proposed method.
Feature Space Warping Relevance Feedback with Transductive Learning / Borghesani, Daniele; Coppi, Dalia; Grana, Costantino; Calderara, Simone; Cucchiara, Rita. - STAMPA. - LNCS 6915:(2011), pp. 70-81. (Intervento presentato al convegno 13th International Conference on Advanced Concepts for Intelligent Vision Systems, ACIVS 2011 tenutosi a Ghent, Belgium nel Aug 22-25) [10.1007/978-3-642-23687-7_7].