Deetz, Marcus; Poddig, Thorsten; Varmaz, Armin - Volkswirtschaftliche Fakultät, … - 2009
Through an implementation of the 2-level-approach due to Vesanto & Alhoniemi (2000), this paper addresses a number of problems typically seen when visualized interpretation of Self Organizing Maps (SOM) are applied to derive a systematic classification system in the hedge fund literature....