Multiple object retrieval for image databases using multiple instance learning and relevance feedback

The paper proposes a method to discover effectively users´ concept patterns when multiple objects of interest (e.g., foreground and background objects) are involved in content-based image retrieval. The proposed method incorporates multiple instance learning into the user relevance feedback in a seamless way to discover where the user´s objects/regions of most interest are and how to map the local features of that(those) region(s) to the user´s high-level concepts. A three-layer neural network is used to model the underlying mapping progressively through the feedback and learning procedure