Results 31 to 40 of about 53,682 (307)

Hierarchical Clustering as a Dimension Reduction Technique for Markowitz Portfolio Optimization

open access: yesМоделирование и анализ информационных систем, 2020
Optimal portfolio selection is a common and important application of an optimization problem. Practical applications of an existing optimal portfolio selection methods is often difficult due to high data dimensionality (as a consequence of the large ...
Anatoliy Y. Poletaev   +1 more
doaj   +1 more source

Prioritizing investments in rapid response vaccine technologies for emerging infections: A portfolio decision analysis.

open access: yesPLoS ONE, 2021
This study reports on the application of a Portfolio Decision Analysis (PDA) to support investment decisions of a non-profit funder of vaccine technology platform development for rapid response to emerging infections.
Dimitrios Gouglas, Kevin Marsh
doaj   +1 more source

Portfolio Evaluation with the Vector Distance Based on Portfolio Composition

open access: yesMathematics, 2023
We propose a novel portfolio evaluation method, a distance-based approach, which directly evaluates the portfolio composition rather than portfolio returns.
Heonbae Jeon   +4 more
doaj   +1 more source

Analisis Pembentukan Portofolio Optimal pada Indeks Saham LQ-45 dengan Metode Safety First Criterion

open access: yesJambura Journal of Mathematics
An optimal portfolio of stocks is a combination of various stock investment assets chosen to provide the maximum level of return for a specified level of risk or provide a minimal level of risk for a specified level of return.
Disya Recita Amalia   +2 more
doaj   +1 more source

PENERAPAN METODE SAFETY FIRST CRITERION PADA SELEKSI SAHAM UNTUK PEMBENTUKAN PORTOFOLIO OPTIMAL

open access: yesE-Jurnal Matematika, 2023
The formation of an optimal portfolio can be done with the Safety First Criterion method which is based on down side risk, namely the risk of causing a loss.
HAMITA HAKMI   +2 more
doaj   +1 more source

On the Diversity Constraints for Portfolio Optimization [PDF]

open access: yesEntropy, 2013
In the literature, Markowitz’s mean-variance model and its variants have been shown to yield portfolios that put excessive weights on only a few assets. Many diversity constraints were proposed and added to these models to avoid such overly concentrated portfolios.
openaire   +1 more source

Conditions for the Existence of Absolutely Optimal Portfolios

open access: yesMathematics, 2021
Let Δn be the n-dimensional simplex, ξ = (ξ1, ξ2,…, ξn) be an n-dimensional random vector, and U be a set of utility functions. A vector x*∈ Δn is a U -absolutely optimal portfolio if EuξTx*≥EuξTx for every x∈ Δn and u ∈ U.
Marius Rădulescu   +2 more
doaj   +1 more source

Analysis Investor Index Indonesia with Capital Asset Pricing Model (CAPM)

open access: yesAptisi Transactions on Technopreneurship, 2022
This study aimed to compare composition of the optimal portfolio of stocks, the proportion of funds in each of these stocks and calculate risk and return portfolio from Investor33 (INV33) Index and Jakarta Islamic Index (JII) in research period January ...
Erry Sigit Pramono   +4 more
doaj   +1 more source

Deep deterministic portfolio optimization

open access: yesThe Journal of Finance and Data Science, 2020
Can deep reinforcement learning algorithms be exploited as solvers for optimal trading strategies? The aim of this work is to test reinforcement learning algorithms on conceptually simple, but mathematically non-trivial, trading environments. The environments are chosen such that an optimal or close-to-optimal trading strategy is known.
Ayman Chaouki   +4 more
openaire   +3 more sources

ZW4864‐mediated inhibition of the β‐catenin/BCL9/BCL9L complex reveals therapeutic potential in bladder cancer

open access: yesMolecular Oncology, EarlyView.
BCL9 and BCL9L drive bladder cancer progression by enhancing β‐catenin signaling, promoting proliferation, migration, invasion, and organoid growth. Genetic depletion of BCL9(L) suppresses malignant phenotypes, while pharmacological disruption of the β‐catenin/BCL9(L) complex with ZW4864 inhibits canonical Wnt signaling and tumor‐associated cellular ...
Roland Kotolloshi   +11 more
wiley   +1 more source

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