Non-monotonic enumeration of layout alternative [i.e., alternatives] using the LOOS operators Ulrich Flemming Carnegie Mellon University.Engineering Design Research Center. 10.1184/R1/6469085.v1 https://kilthub.cmu.edu/articles/journal_contribution/Non-monotonic_enumeration_of_layout_alternative_i_e_alternatives_using_the_LOOS_operators/6469085 Abstract: "This report develops a control function for application of the generation rules used in the LOOS system (Flemming et al. 88a) that does not keep the spatial relations between rectangles invariant. Such a control function is preferable to the one used in past versions of LOOS when certain forms of user interaction with the generation process are desired." 1992-01-01 00:00:00 Building layout Computer simulation.