Hendrik Blockeel Luc Dehaspe Bart Demoen Gerda Janssens Jan Ramon Henk Vandecasteele Improving the Efficiency of Inductive Logic Programming Through the Use of Query Packs. 135-166 2002 16 J. Artif. Intell. Res. (JAIR) http://dx.doi.org/10.1613/jair.924 db/journals/jair/jair16.html#BlockeelDDJRV02