Discussed generally herein are systems and techniques for the semantic handling of uniform resource locator. The server provides a content list of content that may be played on the selected IPTV device. The casing has a thickness that is not greater than typical interstitial spaces between wires of the structural cable and has a length on an order of a radius of the structural cable. Rejection thresholds are learned using a pruning process which ensures that objects detected by the original combination classifier are also detected by the combination classifier, thereby guaranteeing the same detection rate on the training set after pruning.