Ratna Herdiana

Diponegoro University — ID

Medicine · Health Sciences

4h-index89citations35works0.52yr avg
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Research Topics

Mathematical and Theoretical Epidemiology and Ecology Models(9), Stochastic processes and financial applications(6), Fractional Differential Equations Solutions(5), Evolution and Genetic Dynamics(5), COVID-19 epidemiological studies(4)

Publications35 total

A Study of Discrete-time Dynamical Systems with One Stable Equilibrium Using Standard and Nonstandard Difference Schemes
WSEAS TRANSACTIONS ON MATHEMATICS·2025Open Access
On the Dynamics of Particular Discrete Quadratic Systems with Potential Absence of Equilibria: Standard Euler versus Nonstandard Mickens Discretizations
European Journal of Pure and Applied Mathematics·2025Open Access
OPTIMIZING BI-OBJECTIVE MULTIPLE TRAVELING SALESMEN ROUTES FOR DISASTER RELIEF LOGISTICS USING GENETIC ALGORITHM
BAREKENG JURNAL ILMU MATEMATIKA DAN TERAPAN·2025Open Access
Peningkatan Kreativitas Siswa pada Pembelajaran Teselasi Bangun Datar Melalui Media Keramik
Natural Jurnal Pelaksanaan Pengabdian Bergerak bersama Masyarakat·2025Open Access
Perbandingan Metode Euler - Estimasi Galat Neural Network dan Metode Runge Kutta Orde 4 dalam Menyelesaikan Persamaan Diferensial Biasa Linear
Limits Journal of Mathematics and Its Applications·2025Open Access
Optimal Portfolio Analysis Using Power and Natural Logarithm Utility Functions with E-Commerce Data
International Journal of Financial Studies·2025Open Access
The impact of ecological mechanisms on stability in an eco-epidemiological model: Allee effect and prey refuge
Computer Research and Modeling·2025· 3 citedOpen Access
A dynamical model of pneumonia transmission in children under five years with nutritional factors
Communications in Mathematical Biology and Neuroscience·2025Open Access
Multivariable optimal control for hemodialysis: A physiologically-grounded simulation study
Mathematical Biosciences & Engineering·2025Open Access
Prediction of Stock Price Volatility Using the Long Short Term Memory (LSTM) Model for Investment Portfolio Selection Strategy
International Journal of Current Science Research and Review·2024· 2 citedOpen Access
Controllability of the nonlinear smoking model
AIP conference proceedings·2024
TRAFFIC CONGESTION ANALYSIS USING SIR EPIDEMIC MODEL
BAREKENG JURNAL ILMU MATEMATIKA DAN TERAPAN·2023Open Access
Analysis and Prediction of Bollinger Bands to Predict Stock Prices in Determining Investment Strategies
International Journal of Current Science Research and Review·2023Open Access
Geometric Brownian Motion in Analyzing Seasonality of Gold Derivative Prices
Eduvest - Journal Of Universal Studies·2023· 3 citedOpen Access
Stability Analysis of Competition Model of iOS and Android
Journal of Advanced Research in Applied Sciences and Engineering Technology·2023· 3 citedOpen Access
Portfolio optimization with mean absolute deviation model using particle swarm optimization algorithm: A case study in Indonesia during Covid-19 pandemic
AIP conference proceedings·2023· 1 cited
Mathematical modelling and stability analysis of the SEQIRD model spread of COVID-19
AIP conference proceedings·2023
Stability analysis of coronavirus disease spread model in Central Java province, Indonesia
AIP conference proceedings·2023
Using merton jump diffusion model to analyze the response of Jakarta Islamic index stock prices during Covid-19 pandemic
AIP conference proceedings·2023· 1 cited
Prediction bitcoin price based on long short term memory (LSTM) optimized by gradient descent
AIP conference proceedings·2023
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Frequent Co-authors

A H Permatasari(7), Sutimin Sutimin(6), Widowati Widowati(6), Robertus Heri Soelistyo Utomo(5), R. Heru Tjahjana(5), Susilo Hariyanto(4), Kevin Burrage(3), Moch. Fandi Ansori(3), Jovian Dian Pratama(3), Siti Khabibah(2), Dhea Putri Adriani(2), Hafidh Khoerul Fata(2), Nurcahya Yulian Ashar(2), Yogi A. Erlangga(2), Pamela Burrage(1), R. Heri Soelistyo U(1), Ngesti Lestari(1), A N Ifati(1), F A Taqiya(1), Germansah Germansah(1)