Data processing method and data processing apparatus

A data processing method, comprising:

• selecting, by a computer, candidate tables corresponding to a first table from among second tables, a record of the respective candidate tables including a first data item included in a record of the first table;
• acquiring a first coincidence degree of the first table for the respective candidate tables, the first coincidence degree indicating a degree of coincidence between the first table and the respective candidate tables;
• selecting third tables corresponding to one of the candidate tables from among the second tables, a record of the respective third tables including a second data item included in a record of the one of the candidate tables;
• acquiring a second coincidence degree of the one of the candidate tables for the respective third tables, the second coincidence degree indicating a degree of coincidence between the one of the candidate tables and the respective third tables;
• acquiring a reliability of the one of the candidate tables on basis of the first coincidence degree of the first table for the one of the candidate tables and the second coincidence degree of the one of the candidate tables for the respective third tables;
• and
• outputting the acquired reliability.

A data processing apparatus, comprising:

• a memory;
• and
• a processor coupled to the memory and the processor configured to:
• select candidate tables corresponding to a first table from among second tables, a record of the respective candidate tables including a first data item included in a record of the first table;
• acquire a first coincidence degree of the first table for the respective candidate tables, the first coincidence degree indicating a degree of coincidence between the first table and the respective candidate tables;
• select third tables corresponding to one of the candidate tables from among the second tables, a record of the respective third tables including a second data item included in a record of the one of the candidate tables;
• acquire a second coincidence degree of the one of the candidate tables for the respective third tables, the second coincidence degree indicating a degree of coincidence between the one of the candidate tables and the respective third tables;
• acquire a reliability of the one of the candidate tables on basis of the first coincidence degree of the first table for the one of the candidate tables and the second coincidence degree of the one of the candidate tables for the respective third tables;
• and
• output the acquired reliability.