Statistics – Applications
Scientific paper
2010-07-12
Statistics
Applications
8 pages, 7 figures
Scientific paper
The mathematical interpretation of L0, L1 and L2 is needed to understand how we should use these norms for optimization problems. The L0 norm is combinatorics which is counting certain properties of an object or an operator. This is the least amplitude dependent norm since it is counted regardless of the magnitude. The L1 norm could be interpreted as minimal geometric description. It is somewhat sensitive to amplitude information. In geophysics, it has been used to edit outliers like spikes in seismic data. This is a good application of L1 norm. The L2 norm could be interpreted as the numerically simplest solution to fitting data with a differential equation. It is very sensitive to amplitude information. Previous application includes least square migration. In this paper, we will show how to combine the usage of L0 and L1 and L2. We will not be optimizing the 3 norms simultaneously but will go from one norm to the next norm to optimize the data before the final migration.
Lau August
Yin Chuan
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