INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND COMPUTER-READABLE STORAGE MEDIUM
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United States of America Patent
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Oct 19, 2015
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Nov 7, 2014
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Abstract
An information processing device (100) processes a data structure that expresses a set of points that are included in a multidimensional space, and includes: an interval search unit (10) that, when a particular multidimensional region is specified as a query region, specifies an interval that is included in a sequence of points that is obtained from a set of points, and that is composed of only points whose coordinates with respect to dimensions other than one dimension are included in the query region; an aggregation unit (20) that specifies a range of coordinate values with respect to the one dimension, as a condition for a point that appears in the interval to be included in the query region; and a coordinate sequence aggregation unit (30) that receives the specified interval and the range of a coordinate value, and, with respect to a coordinate sequence that is obtained by taking out coordinates of the set of points with respect to the one dimension, and with respect to all coordinates that appear in the input interval and whose values are included in the input range, calculates a statistical amount regarding a set of points to which the coordinates correspond.
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