Abstract: A multi-lens camera module and its multi-lens camera module conjoined stand, and the application thereof. The multi-lens camera module includes at least two lens assemblies, at least two photosensitive assemblies and an integrated multi-lens camera module conjoined stand. The multi-lens camera module conjoined stand has an upside and a downside. Each lens assembly is connected to the upside of the multi-lens camera module conjoined stand. Each photosensitive assembly is connected to the downside of the multi-lens camera module conjoined stand. Each of the camera assembly is located along a path of photoreception of the respective photosensitive assembly. By this means, technical defects in the conventional art, including positional deviations and angle deviations among stands when separate stands are connected, can be avoided. Therefore, the imaging quality of the multi-lens camera module is improved.

Abstract: Systems and methods include determination of a plurality of records, each of the plurality of records including an event, an item, a supplier, and a timestamp, generation, for each of the plurality of records, of a negative sample record including the event of the record, the item of the record, the timestamp of the record, and a sample supplier different from the supplier of the record, association of each of the plurality of records and the generated negative sample records with either a first time period or a second time period based on the timestamp of the record, training of a machine-learning model based on the records and the negative sample records associated with the first time period, and evaluation of the trained model based on the records and the negative sample records associated with the second time period.

Abstract: A multi-lens camera module and its multi-lens camera module conjoined stand, and the application thereof. The multi-lens camera module includes at least two lens assemblies, at least two photosensitive assemblies and an integrated multi-lens camera module conjoined stand. The multi-lens camera module conjoined stand has an upside and a downside. Each lens assembly is connected to the upside of the multi-lens camera module conjoined stand. Each photosensitive assembly is connected to the downside of the multi-lens camera module conjoined stand. Each of the camera assembly is located along a path of photoreception of the respective photosensitive assembly. By this means, technical defects in the conventional art, including positional deviations and angle deviations among stands when separate stands are connected, can be avoided. Therefore, the imaging quality of the multi-lens camera module is improved.