Title:
DATA RETRIEVAL METHOD AND RELATED DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/030184
Kind Code:
A1
Abstract:
The present application discloses a data retrieval method, comprising: a routing node determining a target vector according to the vector similarity between a first vector and a plurality of second vectors, determining a target index node among a plurality of index nodes on the basis of routing information, and transmitting the first vector to a target index node, such that the target index node determines a retrieval result from third vectors stored thereby. In the present application, the third vector having high similarity with the first vector is stored on a specific index node, and therefore, the routing node only needs to send the first vector to the target index node, and then the target index node can obtain an accurate retrieval result on the basis of a candidate node stored thereby, such that an accurate retrieval result can be obtained only by accessing one or some of the index nodes (having a small quantity) each time of retrieval, thereby improving the similarity retrieval performance of large-scale vector retrieval.
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Inventors:
JIN ZHAO (CN)
LIU WENJIE (CN)
LI HUIFENG (CN)
NIE GUANGYAO (CN)
LIU WENJIE (CN)
LI HUIFENG (CN)
NIE GUANGYAO (CN)
Application Number:
PCT/CN2022/115091
Publication Date:
March 09, 2023
Filing Date:
August 26, 2022
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G06F16/2453; G06F9/50
Domestic Patent References:
| WO2019225274A1 | 2019-11-28 | |||
| WO2021067376A1 | 2021-04-08 |
Foreign References:
| CN113297264A | 2021-08-24 | |||
| US20210224583A1 | 2021-07-22 | |||
| CN110019096A | 2019-07-16 | |||
| CN110019875A | 2019-07-16 |
Attorney, Agent or Firm:
SHENPAT INTELLECTUAL PROPERTY AGENCY (CN)
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