@phdthesis{oai:tsukuba.repo.nii.ac.jp:00008757,
 author = {Sasaki, Yutaka and 佐々木, 裕},
 month = {},
 note = {This thesis extends a conventional framework of Inductive Logic Prgramming(ILP)[35]to that of hierarchically sorted Inductive Logic Programming and applies the extended ILP ..., 2000, Includes bibliographical references},
 school = {筑波大学, University of Tsukuba},
 title = {Hierarchically sorted inductive logic programming and its application to information extraction},
 year = {2000}
}