A Robot Vision Algorithm for Navigating in and Creating a Topological Map of a Reconfigurable Maze. - Eleftherios Karapetsas; Demosthenes Stamatis (ICANN (2), 2010)

Long-Term Goal Discovery in the Twitter Posts through the Word-Pair LDA Model. - Dandan Zhu; Yusuke Fukazawa; Eleftherios Karapetsas; Jun Ota 001 (JapTAL, 2012)

Intuitive Topic Discovery by Incorporating Word-Pair's Connection Into LDA. - Dandan Zhu; Yusuke Fukazawa; Eleftherios Karapetsas; Jun Ota 001 (Web Intelligence, 2012)

Genetically optimizing query expansion for retrieving activities from the web. - Eleftherios Karapetsas; Yusuke Fukazawa; Jun Ota 001 (WIMS, 2012)

Activity-based topic discovery. - Dandan Zhu; Yusuke Fukazawa; Eleftherios Karapetsas; Jun Ota 001 (Web Intell. Agent Syst., 2014)

Exploratory activity search. - Yusuke Fukazawa; Eleftherios Karapetsas; Dandan Zhu; Jun Ota 001 (Int. J. Knowl. Based Intell. Eng. Syst., 2015)