Sparse variable optimization device, sparse variable optimization method, and sparse variable optimization program
US9292801B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2014 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | Oct 2, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N20/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A gradient computation unit computes a gradient of an objective function in a variable to be optimized. An added variable selection unit adds a variable corresponding to a largest absolute value of the computed gradient from among variables included in a variable set, to a nonzero variable set. A variable optimization unit optimizes a value of the variable to be optimized, for each variable included in the nonzero variable set. A deleted variable selection unit deletes a variable that, when deleted, causes a smallest increase of the objective function from among variables included in the nonzero variable set, from the nonzero variable set. An objective function evaluation unit computes a value of the objective function for the variable to be optimized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.