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    • 1. 发明授权
    • Method for computing frequency distribution for many fields in one pass in parallel
    • 并行计算一次通过多个场的频率分布的方法
    • US07565349B2
    • 2009-07-21
    • US11271047
    • 2005-11-10
    • Michael James BeckerleJerry Lee Callen
    • Michael James BeckerleJerry Lee Callen
    • G06F7/00G06F17/30
    • G06F17/30575Y10S707/99937
    • Provided are a techniques for determining a frequency distribution for a set of records. A count table of frequency distributions is built in memory for each field in the set of records, wherein each record of each count table includes a field identifier, a field value, and a count of a number of times the field value occurs in the set of records, and wherein the field identifier concatenated with the field value comprises a composite key value. It is determined that at least one count table of frequency distributions is approaching a maximum amount of memory allocated to that count table. The records of the at least one count table that is approaching the maximum amount of memory are sent for sorting and additional counting, wherein the records include composite key values.
    • 提供了一种用于确定一组记录的频率分布的技术。 频率分布的计数表内置在记录集合中的每个场的存储器中,其中每个计数表的每个记录包括字段标识符,字段值和字段值在集合中发生的次数的计数 的记录,并且其中与字段值连接的字段标识符包括复合键值。 确定频率分布的至少一个计数表接近分配给该计数表的最大存储量。 发送接近最大存储量的至少一个计数表的记录用于排序和附加计数,其中记录包括复合密钥值。
    • 3. 发明授权
    • Record sorting
    • 记录排序
    • US08407404B2
    • 2013-03-26
    • US12650991
    • 2009-12-31
    • Jerry Lee Callen
    • Jerry Lee Callen
    • G06F12/00
    • G06F7/24
    • A method, computer program product, and computing system for record sorting is described. The method may comprise splitting an incoming record into a separate key block and payload block. The method may further comprise storing the key block in a first memory. The method may also comprise assigning the payload block an address in a second memory at the beginning of a sort. Moreover, the method may store, with the key block in the first memory, the address of the payload block in the second memory. Additionally, the method may store the payload block at the address in the second memory.
    • 描述了用于记录排序的方法,计算机程序产品和计算系统。 该方法可以包括将输入记录分成单独的密钥块和有效载荷块。 该方法还可以包括将密钥块存储在第一存储器中。 该方法还可以包括在排序开始时将有效载荷块分配给第二存储器中的地址。 此外,该方法可以将第一存储器中的密钥块存储在第二存储器中的有效载荷块的地址。 此外,该方法可以将有效载荷块存储在第二存储器中的地址处。