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Mathematics, Volume 10, Issue 22

November-2 2022 - 229 articles

Cover Story: During the COVID-19 pandemic, the economy was strongly affected by the restrictions imposed by the authorities to prevent the spread of the virus, and local online platforms and e-commerce experienced an accelerated rate of growth. The purpose of this study is to highlight the determinants of consumer behavior on local online market platforms, as well as the barriers that affect the intention to shop online. By conducting a qualitative survey and applying a probit binary choice model, the analysis was centered on several variables with expected important impact on quick and flexible response/adaptation to new market profiles, such as the age of the respondents, the level of income, the trend of online purchasing of different categories of goods, and the propensity towards online payment. View this paper
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Articles (229)

  • Article
  • Open Access
5 Citations
3,271 Views
12 Pages

Novel Reinforcement Learning Research Platform for Role-Playing Games

  • Petra Csereoka,
  • Bogdan-Ionuţ Roman,
  • Mihai Victor Micea  and
  • Călin-Adrian Popa

20 November 2022

The latest achievements in the field of reinforcement learning have encouraged the development of vision-based learning methods that compete with human-provided results obtained on various games and training environments. Convolutional neural network...

  • Article
  • Open Access
13 Citations
2,579 Views
25 Pages

20 November 2022

Reporting the empirical results of swarm and evolutionary computation algorithms is a challenging task with many possible difficulties. These difficulties stem from the stochastic nature of such algorithms, as well as their inability to guarantee an...

  • Article
  • Open Access
18 Citations
9,602 Views
14 Pages

20 November 2022

The effect of the COVID-19 pandemic on crude oil prices just faded; at this moment, the Russia–Ukraine war brought a new crisis. In this paper, a new application is developed that predicts the change in crude oil prices by incorporating these t...

  • Article
  • Open Access
1 Citations
1,827 Views
31 Pages

Two-Stage Optimization Methods to Solve the DNA-Sample Allocation Problem

  • Diego Noceda-Davila,
  • Silvia Lorenzo-Freire and
  • Luisa Carpente

19 November 2022

This paper deals with new methods capable of solving the optimization problem concerning the allocation of DNA samples in plates in order to carry out the DNA sequencing with the Sanger technique. These methods make it possible to work with independe...

  • Article
  • Open Access
2 Citations
3,045 Views
24 Pages

Artificial Intelligence and Cognitive Computing in Companies in Portugal: An Outcome of Partial Least Squares—Structural Equations Modeling

  • Renato Lopes da Costa,
  • Varun Gupta,
  • Rui Gonçalves,
  • Álvaro Dias,
  • Leandro Pereira and
  • Chetna Gupta

19 November 2022

Artificial intelligence (AI) and cognitive computing (CC) are different, which is why each technology has its advantages and disadvantages, depending on the task/operation that a business wants to optimize. Nowadays, it is easy to confuse both by sim...

  • Article
  • Open Access
12 Citations
1,808 Views
22 Pages

19 November 2022

Due to the shortcomings of the standard bat algorithm (BA) for multi-parameter optimization, an improved bat algorithm is proposed. The benchmark function test shows that the proposed algorithm has better realization of high-dimensional function opti...

  • Article
  • Open Access
4 Citations
3,028 Views
11 Pages

19 November 2022

This article presents the results of the implementation of a forecasting model, to predict the relief materials needed for assisting in decisions prior to natural disasters, thus filling a gap in the exploration of Generalized Linear Mixed Models (GL...

  • Article
  • Open Access
18 Citations
1,824 Views
37 Pages

19 November 2022

In this study, we look at the wavelet basis for the nonparametric estimation of density and regression functions for continuous functional stationary processes in Hilbert space. The mean integrated squared error for a small subset is established. We...

  • Article
  • Open Access
1 Citations
1,705 Views
10 Pages

19 November 2022

In this paper, we prove the Hyers–Ulam stability and generalized Hyers–Ulam stability of ut(x,t)=a(t)Δu(x,t) with an initial condition u(x,0)=f(x) for x∈Rn and 0<t<T; the corresponding conclusions of the standard heat equ...

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Mathematics - ISSN 2227-7390