1. A system comprising: a non-transitory memory storing an attribute database including individual attributes and composite attributes, each of the composite attributes including two or more of the individual attributes; and a hardware processor executing an executable code to: receive a plurality of images; analyze a set of features of the plurality of images to determine a difference between a first training performance of a plurality of independent detectors and a second training performance of a plurality of joint detectors, wherein the plurality of independent detectors are for identifying a plurality of objects in the plurality of images based on one or more of the individual attributes, and wherein the plurality of joint detectors are for identifying the plurality of objects in the plurality of images based on one or more of the composite attributes; select, based on the analyzing, either one of the plurality of independent detectors or one of the plurality of joint detectors for identifying the plurality of objects in the plurality of images; and identify the plurality of objects in the plurality of images, using the selected one of the plurality of independent detectors utilizing the one or more of the individual attributes or using the selected one of the plurality of joint detectors utilizing the one or more of the composite attributes.