METHOD OF EXTRACTING GROUP OF NUMBERS THAT IS HIGHLY EXPECTED TO BE USED AS TELEPHONE NUMBER OUT OF AGGREGATE OF A TOTAL OF TEN BILLION TEN-DIGIT DECIMAL NUMBERS IN ASSUMPTION THAT AREA CODE AND LOCAL NUMBER ARE NOT KNOWN

摘要

PROBLEM TO BE SOLVED: To efficiently focus on a group of numbers that is highly expected to be used as telephone numbers among ten billion ten-digit numbers, with no use of information about area codes and local numbers.;SOLUTION: Ten three-digit numbers are generated as sample numbers. A sample aggregate is generated which includes ten million ten-digit numbers whose upper most digit is "0" while lower three digits match with any one of the ten sample numbers, among ten billion ten-digit numbers. The sample aggregate containing ten million ten-digit numbers is made into ten thousand groups Gi (i=1-10000), with each group containing one thousand numbers whose upper five digits match with each other. One thousand ten-digit numbers in the group Gi are sequentially called. If it is determined that at least one number is valid as a telephone number, the group Gi is determined to be a valid group, and one hundred thousand ten-digit numbers are generated in which the upper five-digit numbers of the group Gi are combined with one hundred thousand five-digit numbers as lower five digits. An aggregate of N multiplied by one hundred thousand ten-digit numbers, in total, which is generated based on N-pieces of groups determined to be valid groups is outputted.;COPYRIGHT: (C)2012,JPO&INPIT