Patent ID: 11947552
Assignee: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 14:
15. The electronic device of claim 11, wherein the determining a position of the number of columns of the covariance matrix other than the first target column except the first place in the rearrangement sequence according to the first target column and the first upper triangular matrix, and obtaining an upper triangular matrix in each position determination comprises:
taking, for a second place in the rearrangement sequence, columns in the covariance matrix other than the first target column as candidate second target columns;
obtaining a plurality of target calculation results according to the first upper triangular matrix and the candidate second target columns, and taking the candidate second target column corresponding to the target calculation result in the plurality of target calculation results that satisfies a preset requirement as a second target column;
taking the number of columns of the second target column in the covariance matrix as the second place in the rearrangement sequence, and obtaining a second upper triangular matrix according to the first upper triangular matrix and the second target column;
taking, for a third place in the rearrangement sequence, columns in the covariance matrix other than the first target column and the second target column as candidate third target columns;
obtaining a plurality of target calculation results according to the second upper triangular matrix and the candidate third target columns, and taking the candidate third target column corresponding to the target calculation result in the plurality of target calculation results that satisfies a preset requirement as a third target column;
taking the number of columns of the third target column in the covariance matrix as the third place in the rearrangement sequence, and obtaining a third upper triangular matrix according to the second upper triangular matrix and the third target column; and
continuously proceeding until the last place in the rearrangement sequence is determined.