Automotive data processing system with efficient generation and exporting of metadata

An automotive data processing system, comprising:

• a storage subsystem, which is disposed in a vehicle and is configured to store at least data produced by one or more data sources of the vehicle;
• and
• a processor, which is installed in the vehicle and is configured to:
• apply, to the data stored in the storage subsystem or that is en route to be stored in the storage subsystem, at least one model that identifies one or more specified features-of-interest in the data, so as to generate metadata that tags occurrences of the specified features-of-interest in the stored data;
• export over a data link at least part of the metadata to an external system that is external to the vehicle, wherein the metadata tags the occurrences of the specified features-of-interest, prior to exporting the data containing the specified features-of-interest tagged by the metadata;
• after exporting the metadata to the external system and prior to exporting the data to which the exported metadata pertains, receive by the processor installed in the vehicle from the external system that is external to the vehicle a request for one or more selected portions of the data, the selected portions of the data relating to specific features-of-interest tagged by the metadata that was generated in the vehicle using the at least one model and exported from the vehicle to the external system;
• and
• provide, from the processor installed in the vehicle to the external system, based on the request, the selected portions of the data, which contain the specified features-of-interest tagged by the metadata and were not yet exported to the external system, but less than all the data to reduce a volume of data transferred over the data link.