Linear, exponential, logarithmic, and triangular decay functions each have their own characteristics, as detailed in the table below:

S.N.	Decay functions	Characteristics	Weight images
1	Linear	Decay at a constant rate
2	Exponential	Decay with decreasing rate
3	Logarithmic	Decay with increasing rate
4	Triangular	Decay with varying rates: slow → fast → slow
Note: In these images, the x-axis represents the distance from xi, and the y-axis represents the weight. For better visualization, k’ is set to 100.