The invention discloses a multi-device collaborative efficient online
adaptation method, which comprises the following steps: for devices with rich computing power resources,
processing a first model in the devices by adopting an online collaborative
adaptation mode based on forward and back propagation: when domain offset is detected, dynamically storing weights learned by the models into a
shared knowledge base; new knowledge is captured in the
adaptation process by introducing a new parameter matrix into the first
model parameters; and for equipment with low computing power,
processing a second model in the equipment by adopting an online collaborative adaptation mode which only utilizes
forward propagation, and carrying out online adaptation on the model by directly utilizing an existing
shared knowledge base. According to the method, the
knowledge base is dynamically updated and shared, so that accumulation, sharing and dynamic utilization of knowledge among multiple devices are realized; and different online cooperative adaptation
modes are adopted for
processing for equipment with different computing power, so that the energy efficiency and practicability of online adaptation in practical application are greatly improved. The method can be widely applied to the technical field of transfer learning.