sigAlbum: an embedded photo service using a tiny text intelligence. - HaeYong Shin; HyeonTaek Oh; Woo-Jong Ryu; SangKeun Lee 001 (UbiComp Adjunct, 2016)

sigInterface: a personalized interface for intelligent services. - Woo-Jong Ryu; HyeonTaek Oh; SangKeun Lee 001 (UbiComp/ISWC Adjunct, 2017)