Planetary boundary layer (PBL) Planetary boundary layer (PBL), also called atmospheric boundary layer, the region of the lower troposphere where Earthâs surface strongly influences temperature, moisture, and wind through the turbulent transfer of air mass.
Portfolio optimization tools are useful to assist planners, advisers, and clients in ways to conceptualize the asset allocation problem. But, they should not be relied upon as the primary tool for structuring an investment portfolio.
Optimization process. From Lesswrongwiki. An optimization process is any kind of process that systematically comes up with solutions that are better than the solution used before. More technically, this kind of process is one that performs searches in a large search space, hitting small, low probability targets.