4 citations · 11 across the 15 of their papers we have counts for
20 papers
Bifurcation Analysis of a Predator-Prey Model with Allee Effect and Cooperative Hunting
Yujie Gao, Ton Viet Ta
We propose a novel predator-prey model that integrate two ecologically significant mechanisms: the Allee effect in the prey population and cooperative hunting behavior among predat…
Modeling Predator-Prey Dynamics with Stochastic Differential Equations: Patterns of Collective Hunting and Nonlinear Predation Effects
Junyi Qi, Ton Viet Ta
We investigate predator-prey school interactions in aquatic environments using a stochastic differential equation (SDE)-based, particle-level model that incorporates attraction, re…
Towards High-Fidelity and Controllable Bioacoustic Generation via Enhanced Diffusion Learning
Tianyu Song, Ton Viet Ta
Generative modeling offers new opportunities for bioacoustics, enabling the synthesis of realistic animal vocalizations that could support biomonitoring efforts and supplement scar…
Deep Learning for Automated Identification of Vietnamese Timber Species: A Tool for Ecological Monitoring and Conservation
Tianyu Song, Van-Doan Duong, Thi-Phuong Le +1
Accurate identification of wood species plays a critical role in ecological monitoring, biodiversity conservation, and sustainable forest management. Traditional classification app…
Mathematical Models for Fish Schooling
Linh Thi Hoai Nguyen, Ton Viet Ta, Atsushi Yagi
This note reviews our mathematical models for fish schooling, considered in free space, and in space with obstacle and food resource. These models are performed by stochastic diffe…
Quantifying Fish School Fragmentation under Predation Using Stochastic Differential Equations
Junyi Qi, Thorkil Casse, Masayoshi Harada +2
This study builds upon our previously proposed stochastic differential equation (SDE)-based model to further investigate fish school fragmentation under predation. Specifically, we…
Stochastic forest transition model dynamics and parameter estimation via deep learning
Satoshi Kumabe, Tianyu Song, Ton Viet Ta
Forest transitions, characterized by dynamic shifts between forest, agricultural, and abandoned lands, are complex phenomena. This study developed a stochastic differential equatio…
Deep learning-based method for weather forecasting: A case study in Itoshima
Yuzhong Cheng, Linh Thi Hoai Nguyen, Akinori Ozaki +1
Accurate weather forecasting is of paramount importance for a wide range of practical applications, drawing substantial scientific and societal interest. However, the intricacies o…
MPSA-DenseNet: A novel deep learning model for English accent classification
Tianyu Song, Linh Thi Hoai Nguyen, Ton Viet Ta
This paper presents three innovative deep learning models for English accent classification: Multi-DenseNet, PSA-DenseNet, and MPSE-DenseNet, that combine multi-task learning and t…
Dynamics of infectious diseases in predator-prey populations: a stochastic model, sustainability, and invariant measure
Yujie Gao, Malay Banerjee, Ton Viet Ta
This paper introduces an innovative model for infectious diseases in predator-prey populations. We not only prove the existence of global non-negative solutions but also establish…
A Geometrical Structure for Predator-Avoidance Fish Schooling
Aditya Dewanto Hartono, Ton Viet Ta, Linh Thi Hoai Nguyen
This paper conducts a numerical study of a geometrical structure called -school for predator-avoidance fish schools, based on our previous mathematical model. Our results show t…
A Stochastic Differential Equation Model for Predator-Avoidance Fish Schooling
Aditya Dewanto Hartono, Linh Thi Hoai Nguyen, Ton Viet Ta
This paper presents a system of stochastic differential equations (SDEs) as mathematical model to describe the spatial-temporal dynamics of predator-prey system in an artificial aq…
Dynamical system for animal coat pattern model
Ton Viet Ta
We construct a dynamical system for a reaction diffusion system due to Murray, which relies on the use of the Thomas system nonlinearities and describes the formation of animal coa…
A sustainability condition for stochastic forest model
Ton Viet Ta, Linh Thi Hoai Nguyen, Atsushi Yagi
A stochastic forest model of young and old age class trees is studied. First, we prove existence, uniqueness and boundedness of global nonnegative solutions. Second, we investigate…
A stochastic differential equation model for foraging behavior of fish schools
Ton Viet Ta, Linh Thi Hoai Nguyen
We present a novel model of stochastic differential equations for foraging behavior of fish schools in space including obstacles. We then study the model numerically. Three configu…
Strict solutions to stochastic parabolic evolution equations in M-type 2 Banach spaces
Ton Viet Ta, Yoshitaka Yamamoto, Atsushi Yagi
We study a stochastic linear evolution equation in a Banach space of M-type 2. We construct unique strict solutions to the equation on the basis of th…
Stochastic parabolic evolution equations in M-type 2 Banach spaces
Ton Viet Ta
This paper is devoted to studying stochastic parabolic evolution equations with additive noise in Banach spaces of M-type 2. We construct both strict and mild solutions possessing…
Regularity of solutions of abstract linear evolution equations
Viet Ton Ta
In this paper, we study regularity of solutions to linear evolution equations of the form in a Banach space , where is a sectorial operator in and $A^{-…
Note on abstract stochastic semilinear evolution equations
Ton Viet Ta
This paper is devoted to studying abstract stochastic semilinear evolution equations with additive noise in Hilbert spaces. First, we prove the existence of unique local mild solut…
Existence results for linear evolution equations of parabolic type
Ton Viet Ta
We study both strict and mild solutions to parabolic evolution equations of the form in Banach spaces. First, we explore the deterministic case. The maxi…