Browsing by Author "Dussaud, Eric"

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    A Sparse, Bound-Respecting Parametrization of Velocity Models
    (2005-04) Dussaud, Eric; Symes, William W.
    We present a parsimonious representation of velocity models which allows for user-defined placement of nodes. Mild restrictions are imposed on the data structure so that a computationally efficient algorithm can be used to smoothly approximate nodal values on finely sampled regular grids. The building block of the algorithm operates on one-dimensional arrays, allows for user-defined control of smoothness and guarantees that bounds are preserved. The specific data structure allows to carry out this process recursively to obtain multi-dimension smooth and regularly gridded velocity models.
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    Hundred Digit Challenge Solutions
    (2002-05) Dussaud, Eric; Husband, Chris; Nguyen, Hoang; Reynolds, Daniel; Stolk, Christiaan
    This paper details our solutions to the "Hundred-dollar, Hundred-digit Challenge", which appeared in Volume 35, Number 1 of SIAM News.