Shawn Brown

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Data type: An abstract data type (ADT) is a model for data structures or data types that can be described by their behavior or semantics. An abstract data type is defined only by the operations that may be performed on it; pre-conditions on the inputs to those operations; post-conditions on the outputs from those operations; and possible descriptions of the(More)
Data capture technologies like airborne LIDAR produce extremely large models of digital terrain, which must be simplified to be useful. Garland and Heckbert’s quadric error metric in conjunction with edge contraction gives a greedy approach to simplify a mesh that can fit in memory; we adapt it to work with boundaries and labels (e.g., object ID, ground vs.(More)
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