Lookapp: interactive construction of web-based concept detectors

While online platforms like YouTube and Flickr do provide massive content for training of visual concept detectors, it remains a difficult challenge to retrieve the right training content from such platforms. In this technical demonstration we present lookapp, a system for the interactive construction of web-based concept detectors. It major features are an interactive "concept-to-query" mapping for training data acquisition and an efficient detector construction based on third party cloud computing services.