Chameleons change their body color according to the color of different environments to adapt to changes in the environme

Chameleons are known to change their body color to blend in with the environment for self-protection purposes, which is a polymorphic survival strategy in biology (PSSB) [20]. Inspired by this strategy, we assume that the target value represents the survival environment, whose change pattern is unknown. To adapt to the changing environment over time, our algorithm selects a suitable fitting function to approximate the target value based on its changes. This process is repeated throughout the observation period, segmenting the trend of the target value and forming a complete fitting curve, as shown in Figure 1.