Matrix generation program, matrix generation apparatus, and plagiarism detection program
US11080480B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 27, 2018 |
| Grant date | Aug 3, 2021 |
| Priority date | — |
| Expiry date | Aug 20, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F40/129
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A plagiarism detection program causing a computer to perform processing of: converting a target document into a first numerical matrix; generating a first conversion matrix by performing discrete Fourier transform on the first numerical matrix; generating a detection matrix which is used for plagiarism detection by masking a upper row of the first conversion matrix with 0; converting a query document into a second numerical matrix; generating a second conversion matrix by performing the discrete Fourier transform on the second numerical matrix; creating an element product matrix by multiplying each element of the second conversion matrix; and acquiring a vector relating to match between the target document and the query document by performing inverse discrete Fourier transform after elements of the created element product matrix are summed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.