Now showing items 1-7 of 7

    • Approximation and Visualization of Sets Defined by Iterated Function Systems 

      Hepting, Daryl H. (University of Regina, 1991-03)
      An iterated function system (IFS) is defined to be a set of contractive affine transformations. When iterated, these transformations define a closed set, called the attractor of an IFS, which has fractal characteristics. ...
    • Rendering Methods for Iterated Function Systems 

      Hepting, Daryl; Prusinkiewicz, Przemyslaw; Saupe, Dietmar (North-Holland, 1991-12)
      This paper describes rendering methods for iterated function systems (IFS’s). The rendering process consists of the generation of a field of data using an IFS and its visualization by means of computer graphics. Two groups ...
    • The Escape Buffer: Efficient Computation of Escape Time for Linear Fractals 

      Hepting, Daryl; Hart, John (Canadian Human Computer Communications Society, 1995-05-17)
      The study of linear fractals has gained a great deal from the study of quadratic fractals, despite important differences. Methods for classifying points in the complement of a fractal shape were originally developed for ...
    • Discernibility in the Analysis of Binary Card Sort Data 

      Hepting, Daryl (Springer, 2013-10-11)
      In an open card sorting study of 356 facial photographs, each of 25 participants created an unconstrained number of piles. We consider all 63,190 possible pairs of photos: if both photos are in the same pile for a participant, ...
    • Operationalizing Ethics in Food Choice Decisions 

      Hepting, Daryl; Jaffe, JoAnn; Maciag, Timothy (Springer, 2014-06)
      There is a large gap between attitude and action when it comes to consumer purchases of ethical food. Amongst the various aspects of this gap, this paper focuses on the difficulty in knowing enough about the various ...
    • Three-Way Analysis of Facial Similarity Judgments 

      Hepting, Daryl H.; Bin Amer, Hadeel Hatim; Yao, Yiyu (2017-10-23)
      The card sorting problem involves the similarity judgments of pairs of photos, taken from a set of photos, by a group of participants. Given the lack of an objective standard for judging similarity, different participants ...
    • A Linear Model for Three-Way Analysis of Facial Similarity 

      Hepting, Daryl H.; Bin Amer, Hadeel Hatim; Yao, Yiyu (Springer, Cham, 2018-05-18)
      Card sorting was used to gather information about facial similarity judgments. A group of raters put a set of facial photos into an unrestricted number of different piles according to each rater’s judgment of similarity. ...