Abstract
Portfolio risk, introduced by Markowitz in 1952 and defined as the standard deviation of the portfolio return, is an important metric in the modern portfolio theory (MPT). A popular method for portfolio selection is to manage the risk and return of a portfolio according to the cross-correlations of returns for various financial assets. In a real-world scenario, estimated empirical financial correlation matrix contains significant level of intrinsic noise that needs to be filtered prior to risk calculations.
Original language | English (US) |
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Article number | 5999595 |
Pages (from-to) | 61-71 |
Number of pages | 11 |
Journal | IEEE Signal Processing Magazine |
Volume | 28 |
Issue number | 5 |
DOIs | |
State | Published - Sep 2011 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Signal Processing
- Electrical and Electronic Engineering
- Applied Mathematics