Patent ID: 11960455
Assignee: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 11:
12. The apparatus according to claim 10, wherein the obtaining a codebook corresponding to the first data set based on residuals between the data in the first data set and the first-level cluster center and residuals between the data in the first data set and the second-level cluster center comprises:
for the each piece of first data in the first data set, calculating a residual between the each piece of first data in the first data set and a first-level cluster center closest to the each piece of first data and a residual between the each piece of first data in the first data set and a second-level cluster center closest to the each piece of first data, to obtain a second residual vector space corresponding to the first data set; and
quantizing the second residual vector space to obtain the codebook corresponding to the first data set.