Results 51 to 60 of about 318 (131)

A refined methodological approach: Long-term stock market forecasting with XGBoost

Journal of Intelligent Systems
One critical research gap that this study fills is artificial intelligence (AI) and machine learning applications that predict equity market index total returns using long-term prediction horizons, and by experimenting with Extreme Gradient Boosting ...
Sürek Rojen Erik, Lau Wee-Yeap
doaj   +1 more source

Co-Integration Test of Selected Indexes on the Share Market and Index of Housing Real Estate Prices

Real Estate Management and Valuation, 2020
The integration of financial markets is an ongoing process throughout the world. Research shows that, from Australia through Europe to the United States, the capital and real estate markets are integrating, influencing each other.
Wolski Rafal
doaj   +1 more source

Evaluation of the yield stability of lentil genotypes by combining AMMI and BLUP techniques

Agrosystems, Geosciences &Environment, Volume 9, Issue 1, March 2026.
Abstract This study evaluated the yield stability of 14 advanced lentil genotypes alongside two control cultivars (Kimia and Gachsaran) across three growing seasons (2013–2016) and three locations in Iran (Gachsaran, Ilam, and Khoramabad). A randomized complete block design with three replications was employed at each site.
Rahmatollah Karimizadeh, Payam Pezeshkpour, Amir Mirzaee, Mostafa Koozehgar Kaleji   +3 more
wiley   +1 more source

Evaluation of Effectiveness of Arima Model Predictions in Investment Portfolio Formation and Management

Economics and Culture
The increasing array of financial assets and investment opportunities nowadays is making investors consider new ways of investment portfolio formation and management.
Brolinska Iryna, Žilinskij Grigorij
doaj   +1 more source

G17 LTSRF Update

, 2016
Presentation given at the 17th GHRSST science meeting (XVII), Washington DC, USA, June 6 – 10, 2016.
openaire   +2 more sources

Integrating Value for the Consumer and Society: A New Conceptual Orientation for Strategic Marketing

Business Strategy &Development, Volume 9, Issue 1, March 2026.
ABSTRACT This study explores the evolving role of strategic marketing orientations in addressing contemporary societal challenges. While traditional orientations focus primarily on consumer needs or firm‐centric objectives, emerging pressures for sustainability and social responsibility demand a broader conceptualization of value orientation.
Aloisio Henrique Mazzarolo, Emerson Wagner Mainardes, Vitor Azzari   +2 more
wiley   +1 more source

Default Prediction in the Finance Industry Based on Ensemble Learning: Combining Machine Learning and Deep Learning

Business Systems Research
Financial institutions face significant challenges in predicting loan defaults, which directly impact the non-performing loan (NPL) rate. Incorrect predictions can lead to misinformed decisions and substantial financial losses.
Hoanh-Su Le, Phong Le Quang Chan, Vinh Truong Cong, Nhat Ho Mai Minh, Lee Jong-Hwa   +4 more
doaj   +1 more source

Simultaneous Observations of Electron Phase Space Density Variations in the Geostationary Orbit by GK2A, GOES‐16, and GOES‐17

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract This study presents simultaneous measurements of electron phase space density (PSD) gradients in geostationary orbit using data from GK2A, GOES‐16, and GOES‐17. By leveraging a three‐satellite configuration, we provide statistical results of PSD gradient estimation in invariant coordinates.
N.‐Y. Lee, J. Seon, G. W. Na, C.‐H. Lee, W.‐H. Seol, K.‐C. Kim   +5 more
wiley   +1 more source

The Climate Modeling Alliance Atmosphere Dynamical Core: Concepts, Numerics, and Scaling

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 3, March 2026.
Abstract This paper presents the dynamical core of the Climate Modeling Alliance (CliMA) atmosphere model, designed for efficient simulation of a wide range of atmospheric flows across scales. The core uses the nonhydrostatic equations of motion for a deep atmosphere, discretized with a hybrid approach that combines a spectral element method (SEM) in ...
Dennis Yatunin, Simon Byrne, Charles Kawczynski, Sriharsha Kandala, Gabriele Bozzola, Akshay Sridhar, Zhaoyi Shen, Anna Jaruga, Julia Sloan, Jia He, Daniel Zhengyu Huang, Valeria Barra, Ray Chew, Anudhyan Boral, Yi‐fan Chen, Oswald Knoth, Paul Ullrich, Cheikh Mbengue, Tapio Schneider   +18 more
wiley   +1 more source

Portfolio Optimization Efficiency Test Considering Data Snooping Bias

Business Systems Research, 2020
Background: In the portfolio optimization area, most of the research is focused on insample portfolio optimization. One may ask a rational question of what the efficiency of the portfolio optimization strategy is and how to measure it.
Kresta Aleš, Wang Anlan
doaj   +1 more source