Subtitle processing method, device and system and storage medium

A subtitle processing system comprising a subtitle searching module, wherein the subtitle searching module comprises:

• a video file clustering unit configured to perform a cluster analysis on a video file to obtain a cluster result;
• a subtitle map extending unit configured to, according to a map relationship between the video file in a cluster and a subtitle file, extend and store a map relationship of another video file in the same cluster and the subtitle file in a video subtitle mapping database;
• an identity code receiving unit configured to receive an identity code of a video file uploaded from a client;
• a subtitle search unit configured to search for a subtitle file corresponding to the identity code of the video file in the video subtitle mapping database;
• a search result returning unit configured to return the subtitle file corresponding to the identity code of the video file in a subtitle search result to the client if the subtitle file corresponding to the identity code of the video file is found in the video subtitle mapping database;
• wherein the system further comprises an extended search module which is configured to operate following the subtitle searching module, the extended search module further configured to:
• if the subtitle file corresponding to the identity code of the video file is not found, search for another identity code of a video file which is in the same cluster as the identity code of the video file uploaded by the client in the video subtitle mapping database and search for a subtitle file corresponding to the another identity code in the video subtitle mapping database;
• return the subtitle file corresponding to the another identity code through the subtitle search result to the client if the subtitle file corresponding to the another identity code is found in the video subtitle mapping database.