Patent ID: 11867050
Assignee: MAGNETIC VARIATION SERVICES, LLC
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 9:
10. The system according to claim 9, wherein the alignment function is estimated using the MAP estimator under a Bayesian framework, and wherein the instructions further comprise instructions for:
smoothing the data from the plurality of typelogs using a Nadaraya-Watson estimator with different bandwidths, providing multiple levels of smoothness,
determining a posterior log likelihood based on a plurality of smoothed data, wherein the smoothed data is maximized using a gradient-search-based local optimization algorithm that is performed in a plurality of stages, from a smoothest stage to a more detailed stage, and
aligning larger features of the smoothed data in a first stage before a later second stage in which finer features of the plurality of typelogs are aligned.