Patent ID: 11874869
Assignee: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 19:
20. A non-transitory computer-readable storage medium, storing computer-readable instructions to perform operations when the computer-readable instructions are executed by a computing device, the operations comprising:
acquiring a plurality of types of media feature of a query media as a first media feature, wherein each of the plurality of types of media feature contains a plurality of first media feature units;
performing, according to each individual of the plurality of first media feature units, a first ranking on a plurality of existing media, wherein the performing a first ranking on a plurality of existing media comprises matching each individual of the plurality of first media feature units to each of the plurality of existing media;
taking, according to a result of the first ranking, first k existing media as a first candidate media set, where k is a positive integer;
performing, according to the plurality of the first media feature units arranged in sequence, a second ranking on the first candidate media set, wherein the plurality of the first media feature units are arranged in a chronological order, wherein the performing a second ranking on the first candidate media set comprises performing the second ranking on the first candidate media set based on the plurality of the first media feature units in the chronological order, and wherein the performing the second ranking on the first candidate media set further comprises:
determining a plurality of types of unit similarity corresponding to the plurality of types of media feature, wherein the plurality of types of media feature comprise a type of floating-point number feature and another type of binarized feature,
determining a similarity matrix of each media in the first candidate media set based on an average or a minimum value of the plurality of types of unit similarity, and
determining a result of the second ranking based on the similarity matrix; and

taking, according to the result of the second ranking, first n first candidate media as a retrieval result, where n is a positive integer.