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    • 7. 发明申请
    • APPROXIMATE ORDER STATISTICS OF REAL NUMBERS IN GENERIC DATA
    • 通用数据中实数的近似阶数统计
    • WO2012118761A2
    • 2012-09-07
    • PCT/US2012026809
    • 2012-02-27
    • SPLUNK INCZHANG STEVE YU
    • ZHANG STEVE YU
    • G06F7/00G06F9/06
    • G06F17/18G06F7/22G06F7/483G06F7/544G06F17/30536G06K9/6222
    • A method, system, and processor-readable storage medium are directed towards calculating approximate order statistics on a collection of real numbers. In one embodiment, the collection of real numbers is processed to create a digest comprising hierarchy of buckets. Each bucket is assigned a real number N having P digits of precision and ordinality O. The hierarchy is defined by grouping buckets into levels, where each level contains all buckets of a given ordinality. Each individual bucket in the hierarchy defines a range of numbers - all numbers that, after being truncated to that bucket's P digits of precision, are equal to that bucket's N. Each bucket additionally maintains a count of how many numbers have fallen within that bucket's range. Approximate order statistics may then be calculated by traversing the hierarchy and performing an operation on some or all of the ranges and counts associated with each bucket.
    • 方法,系统和处理器可读存储介质针对计算关于实数集合的近似顺序统计。 在一个实施例中,处理实数集合以创建包括桶层次的摘要。 每个桶被分配一个实数N,其具有精确度为P的数字和常数O.通过将桶分组为水平来定义层次,其中每个水平包含给定的正常的所有桶。 层次结构中的每个单独的桶定义了一个数字范围 - 所有的数字在被截断为该桶的P精度数字后,等于该桶的N.每个桶还额外保持有多少数字落在该桶的范围内的计数 。 然后可以通过遍历分级结构并对与每个桶相关联的一些或全部范围和计数执行操作来计算近似顺序统计量。