by Azor P. A., Nwobi F. N. and Amadi I. U.
Original Research
The advantage of financial assets and their return rates lie in economic investments which accumulate wealth daily, monthly, yearly and probably periodically, etc. For that reason, this paper considered the problem of a system of Stochastic Differential Equations (SDEs) for economic investments ...
American Journal of Applied Mathematics and Statistics. 2024, 12(2), 28-34. DOI: 10.12691/ajams-12-2-2
Pub. Date: April 24, 2024
by Quan Yuan, Zhixin Yang and Yayuan Xiao
Original Research
This paper investigates the application of the Kiefer-Wolfowitz (KW) algorithm, a stochastic approximation technique, to solve the newsvendor problem under uncertain demand. The proposed approach enables the newsvendor to learn from observed profits and converge to the optimal order quantity, even ...
American Journal of Applied Mathematics and Statistics. 2024, 12(2), 24-27. DOI: 10.12691/ajams-12-2-1
Pub. Date: April 21, 2024
by Qingyun Wang and Yayuan Xiao
Original Research
In recent decades, Long Short-Term Memory networks (LSTMs), an enhanced version of Recurrent Neural Networks (RNNs), have made significant contributions across various domains. Particularly in the study of time series data, they have offered promising capabilities in capturing temporal dependencies ...
American Journal of Applied Mathematics and Statistics. 2024, 12(1), 15-23. DOI: 10.12691/ajams-12-1-3
Pub. Date: February 22, 2024
by Michael Gr. Voskoglou
Original Research
The APOS/ACE instructional treatment for teaching mathematics was introduced in the USA by Prof. Ed Dubinsky and his research team during the 1990’s The central idea of the APOS/ACE treatment is that one can always find a suitable computer task for helping students to build the mental constructions ...
American Journal of Applied Mathematics and Statistics. 2024, 12(1), 10-14. DOI: 10.12691/ajams-12-1-2
Pub. Date: February 01, 2024
by Siqi Mao, Yaping Yuan, Yinpu Li, Ziren Wang, Yuanxin Yao and Yixin Kang
Original Research
Energy conservation in buildings is a paramount concern to combat greenhouse gas emissions and combat climate change. The efficient management of room occupancy, involving actions like lighting control and climate adjustment, is a pivotal strategy to curtail energy consumption. In contexts where ...
American Journal of Applied Mathematics and Statistics. 2024, 12(1), 1-9. DOI: 10.12691/ajams-12-1-1
Pub. Date: January 22, 2024