The hesitant fuzzy set (HFS) is an important tool to deal with uncertain and vague
information. In equipment system portfolio selection, the index attribute of the equipment …

This paper deals with a multiperiod multiobjective fuzzy portfolio selectiossn problem based
on credibility theory. A credibilistic multiobjective mean-VaR model is formulated for the …

Though there are several studies on uncertain single-period portfolio selection, the
uncertain multiperiod portfolio selection literature is still in an exploration phase. Besides …

Based on the concept of high returns as the preference to low returns, this study discusses
the adjustable security proportion for excess investment and shortage investment based on …

This paper applies the cumulative prospect theory to improve the traditional integer subscript
hesitant fuzzy linguistic term set (IS-HFLTS). The proposed variable subscript hesitant fuzzy …

This paper combines two approaches (Fuzzy set theory and Grey Relational Analysis) for
modelling an investor's imprecise linguistic expectations and the uncertain returns of assets …

This paper proposes a new fuzzy model for portfolio selection problem, which takes into
account the vagueness of the investor's preferences. The model proposed in this paper also …

This paper deals with multi-period portfolio selection problem in a fuzzy environment, in
which the effects of investors' time-varying asymmetric attitudes to losses and gains on …

The analysis presented in this paper regards the security of a present value given as an
ordered fuzzy number. The present value was estimated in an imprecise manner and …

Recently, a model for project portfolio selection have been proposed. Here, to modify the
proposed model, we consider the parameters of model as fuzzy numbers and we call it fuzzy …