Results 11 to 20 of about 23,032 (275)

Possibility theory for multiobjective fuzzy random portfolio optimization [PDF]

open access: yesDecision Science Letters, 2014
The problem of portfolio optimization is a standard problem in financial world and it has received tremendous attentions. Portfolio optimization plays essential role in determining portfolio strategies for investors.
Mir Ehsan Hesam Sadati   +2 more
doaj   +1 more source

Project Portfolio Optimization with Considering Interaction between Projects Using Imperialist Competitive Algorithm (ICA) [PDF]

open access: yesمدیریت صنعتی, 2013
Due to Project evaluation complexity and resource constraints, the project portfolio optimization is numerous decision making challenges. Hence, many researches have been done to introduce model and methods for portfolio optimization.
Pourkazemi Pourkazemi   +3 more
doaj   +1 more source

Regularizing portfolio optimization [PDF]

open access: yesNew Journal of Physics, 2010
The optimization of large portfolios displays an inherent instability to estimation error. This poses a fundamental problem, because solutions that are not stable under sample fluctuations may look optimal for a given sample, but are, in effect, very far from optimal with respect to the average risk.
Susanne Still, Imre Kondor
openaire   +3 more sources

Optimal Portfolio Prediction in Tehran Stock Market using Multi-Objective Evolutionary Algorithms, NSGA-II and MOPSO [PDF]

open access: yesتحقیقات مالی, 2014
Despite the growing use of evolutionary multi-objective optimization algorithms in different categories of science, these algorithms as a powerful tool in portfolio optimization and specially solving multi-objective portfolio optimization problem is ...
Mahsa Rajabi, Hamid Khaloozadeh
doaj   +1 more source

Portfolio optimization using cellwise robust association measures and clustering methods with application to highly volatile markets

open access: yesJournal of Finance and Data Science, 2023
This paper introduces the minCluster portfolio, which is a portfolio optimization method combining the optimization of downside risk measures, hierarchical clustering and cellwise robustness.
Emmanuel Jordy Menvouta   +2 more
doaj   +1 more source

Foster–Hart optimal portfolios [PDF]

open access: yesJournal of Banking & Finance, 2016
We reinvestigate the classic portfolio optimization problem where the notion of portfolio risk is captured by the “Foster-Hart risk” — a new, bankruptcy-proof, reserve based measure of risk, extremely sensitive to left tail events (Foster and Hart, 2009).
Anand, Abhinav   +3 more
openaire   +3 more sources

Solving Constrained Mean-Variance Portfolio Optimization Problems Using Spiral Optimization Algorithm

open access: yesInternational Journal of Financial Studies, 2022
Portfolio optimization is an activity for balancing return and risk. In this paper, we used mean-variance (M-V) portfolio models with buy-in threshold and cardinality constraints.
Werry Febrianti   +2 more
doaj   +1 more source

Optimal characteristic portfolios

open access: yesQuantitative Finance, 2020
Characteristic-sorted portfolios are the workhorses of modern empirical finance, deployed widely to evaluate anomalies and construct asset pricing models. We propose a new method for their estimation that is simple to compute, makes no ex-ante assumption on the nature of the relationship between the characteristic and returns, and does not require ad ...
Richard J. McGee, Jose Olmo
openaire   +4 more sources

A New Data-Driven Distributionally Robust Portfolio Optimization Method Based on Wasserstein Ambiguity Set

open access: yesIEEE Access, 2021
Since optimal portfolio strategy depends heavily on the distribution of uncertain returns, this article proposes a new method for the portfolio optimization problem with respect to distribution uncertainty.
Ningning Du, Yankui Liu, Ying Liu
doaj   +1 more source

Fuzzy portfolio optimization problem under uncertainty conditions with application of computational intelligence methods

open access: yesSistemnì Doslìdženâ ta Informacìjnì Tehnologìï, 2020
The problem of constructing an optimal securities portfolio under uncertainty is considered along with the direct and dual problems of fuzzy portfolio optimization. The modified fuzzy portfolio optimization problem is also suggested under a constraint on
Helen Zaychenko, Yuriy Zaychenko
doaj   +1 more source

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