Results 21 to 30 of about 3,121,078 (347)

Real-world datasets for portfolio selection and solutions of some stochastic dominance portfolio models [PDF]

open access: yesData in Brief, 2016
A large number of portfolio selection models have appeared in the literature since the pioneering work of Markowitz. However, even when computational and empirical results are described, they are often hard to replicate and compare due to the ...
Renato Bruni   +3 more
doaj   +2 more sources

Project portfolio selection problems: a review of models, uncertainty approaches, solution techniques, and case studies

open access: yesTechnological and Economic Development of Economy, 2019
Project portfolio selection has been the focus of many scholars in the last two decades. The number of studies on the strategic process has significantly increased over the past decade.
Vahid Mohagheghi   +3 more
doaj   +2 more sources

Mean-Variance-Skewness-Entropy Measures: A Multi-Objective Approach for Portfolio Selection

open access: yesEntropy, 2011
In this study, we present a multi-objective approach based on a mean-variance-skewness-entropy portfolio selection model (MVSEM). In this approach, an entropy measure is added to the mean-variance-skewness model (MVSM) to generate a well‑diversified ...
Yeliz Mert Kantar, Ilhan Usta
doaj   +3 more sources

ChatGPT-Based Investment Portfolio Selection [PDF]

open access: yesOperations Research Forum, 2023
In this paper, we explore potential uses of generative AI models, such as ChatGPT, for investment portfolio selection. Trusting investment advice from Generative Pre-Trained Transformer (GPT) models is a challenge due to model “hallucinations ...
Oleksandr Romanko   +2 more
semanticscholar   +1 more source

An online portfolio selection algorithm using beta risk measure and fuzzy clustering [PDF]

open access: yesMathematics and Modeling in Finance, 2023
An online portfolio selection algorithm has been presented in this research. Online portfolio selection algorithms are concerned with capital allocation to several stocks to maximize the portfolio return over the long run by deciding the optimal ...
Matin Abdi   +2 more
doaj   +1 more source

Robust portfolio selection problems: a comprehensive review [PDF]

open access: yesOperational Research, 2021
This paper reviews recent advances in robust portfolio selection problems and their extensions, from both operational research and financial perspectives.
A. Ghahtarani, A. Saif, A. Ghasemi
semanticscholar   +1 more source

Dimensions Analysis to Excess Investment in Fuzzy Portfolio Model from the Threshold of Guaranteed Return Rates

open access: yesMathematics, 2022
Portfolio selection is a major topic for investors to allocate their assets and maximize their profit under constrained risk. For uncertain investment behavior in a vagueness environment, some researchers have devoted themselves to this field of fuzzy ...
Kuen-Suan Chen   +2 more
doaj   +1 more source

An Analysis of Centrality’s Features as a New Measure for Network Analysis, Risk Measurement & Portfolio Selection [PDF]

open access: yesتحقیقات مالی, 2021
Objective: In network theory, centrality is a measure to estimate importance and influence of a special node to the whole network structure. The aim of this research is to investigate the characteristics of stock centrality and its reliability in risk ...
Saeed Fallahpour, Ali Ghahramani
doaj   +1 more source

Cardinality-constrained portfolio selection via two-timescale duplex neurodynamic optimization

open access: yesNeural Networks, 2022
This paper addresses portfolio selection based on neurodynamic optimization. The portfolio selection problem is formulated as a biconvex optimization problem with a variable weight in the Markowitz risk-return framework.
Man-Fai Leung, Jun Wang, Hangjun Che
semanticscholar   +1 more source

Application of DEA-cross efficiency in portfolio selection of 20 reputable companies in the Iranian stock market. [PDF]

open access: yesتصمیم گیری و تحقیق در عملیات, 2018
One of the problems in portfolio selection, is choosing a stock with conflicting and incomparable objectives such as return and risk. DEA cross efficiency is one of the most useful tools in assessing performance and prioritize a number of firms that ...
Mohammad Reza Alirezaee   +2 more
doaj   +1 more source

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