Optimization heuristics for determining internal rating grading scales. - Marianna Lyra; Johannes Paha; Sandra Paterlini; Peter Winker (Comput. Stat. Data Anal., 2010)

Least median of squares estimation by optimization heuristics with an application to the CAPM and a multi-factor model. - Peter Winker; Marianna Lyra; Chris Sharpe (Comput. Manag. Sci., 2011)