Department of Knowledge Technologies Joef Stefan Institute Ljubljana

Department of Knowledge Technologies Jožef Stefan Institute Ljubljana Slovenia Department Head: Prof. Nada Lavrač

Department of Knowledge Technologies Main research areas

Text Mining and Semantic Web: Software of KT Dept. Document-Atlas SEKTbar Content-Land Semantic-Graphs Contexter Onto-Genesis

Sample application of Text and Web Mining for EU Commission IST World pi. ijs. si most active country number of project collaborations

Multi-attribute decision support: Applications and DEXi Software DEXi supports : • what-if analysis • stability analysis • temporal tracing • how explanation • why explanation

Sample application for Data Mining for Krško: Earthquake prediction by regression tree modeling of radon concentration dependency on meteorological data IF temp_gs_0 <= 9. 145 THEN radon_gs = -231. 0221 * press_gs_daily_diff_0 + 195. 3608 * temp_gs_0 +141. 0913 * temp_air_0 -651. 7502 * temp_diff_0 + 5329. 534 ELSE [IF temp_gs_0 > 9. 145 THEN] IF temp_gs_0 <= 14. 951 THEN radon_gs = -411. 0161 * press_gs_0 + 331. 1097 * press_air_0 +1268. 1533 * temp_gs_0 -462. 2099 * temp_diff_0 +77709. 2972 ELSE [IF temp_gs_0 > 14. 951 THEN] radon_gs = -161. 7076 * press_gs_0 +138. 8424 * press_air_0 -173. 17 * temp_gs_0 +88. 4582 * temp_diff_0 +38546. 0695 Appl. geochem. 20: 1106 -1119, 2005

EU projects (2004 -2009)

Department of Knowledge Technologies Monographs/Books