“…These include Latent Semantic Indexing (LSI), contextual search, user feedback, data clustering in the extraction of perceptual concepts, content-based soft annotation (CBSA), image classifications, ontology, top-down, ontologically driven approaches and bottom-up, automatic-annotation approaches, using machine learning methods to associate low-level features with query concepts, using relevance feedback to learn users' intention, generating semantic template to support high-level image retrieval, fusing the evidences from HTML text and the visual content of images for WWW image retrieval , use of ontology which represent task-specific attributes, objects, and relations, and relate these to the processing modules available for their detection and recognition, use of context-awareness for identifying image semantics and relationships to contribute to closing the semantic gap between user information requests and the shortcomings of current content-based image retrieval techniques , enhanced ICBIR system which allows users to input partial relevance which includes not only relevance extent but also relevance reason for a multi-phase retrieval where partial relevance can adapt to the user's searching intention in a from-coarse-to-fine manner [2]. Although these are good, constructive progresses in solving the problem of semantic gap in CBIR, they cannot define the semantic meanings of an image specifically.…”