Jun Tanimoto

Jun Tanimoto
Kyushu University | Kyudai · Interdisciplinary Graduate School of Engineering Sciences

About

407
Publications
46,110
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
6,663
Citations
Citations since 2016
143 Research Items
4836 Citations
201620172018201920202021202202004006008001,0001,200
201620172018201920202021202202004006008001,0001,200
201620172018201920202021202202004006008001,0001,200
201620172018201920202021202202004006008001,0001,200

Publications

Publications (407)
Article
Full-text available
Understanding occupants’ behaviours (OBs) of heating and cooling use in dwellings is essential for effectively promoting occupants’ behavioural change for energy saving and achieving efficient demand response operation. Thus, intensive research has been conducted on data collection, statistical analysis, and modelling of OBs. However, the majority...
Article
Full-text available
During a pandemic event like the present COVID-19, self-quarantine, mask-wearing, hygiene maintenance, isolation, forced quarantine, and social distancing are the most effective nonpharmaceutical measures to control the epidemic when the vaccination and proper treatments are absent. In this study, we proposed an epidemiological model based on the S...
Article
Full-text available
In this study, the velocity field in a naturally ventilated building within an urban‐like array was explored using large‐eddy simulations. Reduced‐scale building models were used to examine the impacts of the geometric conditions in the surrounding buildings and cross‐ventilating windows on the flow statistics and instantaneous velocity fields in t...
Article
The way of information diffusion among individuals can be quite complicated, and it is not only limited to one type of communication, but also impacted by multiple channels. Meanwhile, it is easier for an agent to accept an idea once the proportion of their friends who take it goes beyond a specific threshold. Furthermore, in social networks, some...
Article
Residential appliances remotely controlled by IoT for demand response has attracted much attention for effective peak demand reduction of the uncertainty of consumers’ behaviors. To promote the technology development of such appliances, estimation of the potential for peak demand reduction according to the type of appliances is strongly needed. Wit...
Article
Full-text available
COVID-19 has emphasized that a precise prediction of a disease spreading is one of the most pressing and crucial issues from a social standpoint. Although an ordinary differential equation (ODE) approach has been well established, stochastic spreading features might be hard to capture accurately. Perhaps, the most important factors adding such stoc...
Article
Full-text available
A new microscopic traffic flow model is established based on heterogeneous driver's sensitivity; in this new model, the driver's sensitivity is defined as being dependent on the headway distances to the preceding vehicle, as in the optimal velocity (OV) function. We introduce the formulation of this driver's sensitivity using a different form of th...
Article
Full-text available
Occupants' behaviors (OBs) toward air conditioning (AC) usage in residential buildings have a strong influence on diverse time patterns of load profiles; thus, various stochastic OB modeling has been proposed. However, the validity of such models has not been fully assessed with metered data, particularly for modeling AC switching‐off actions. In t...
Article
Residential appliances remotely controlled by IoT for demand response has attracted much attention for effective peak demand reduction of the uncertainty of consumers' behaviors. To promote the technology development of such appliances, estimation of the potential for peak demand reduction according to the type of appliances is strongly needed. Wit...
Article
Full-text available
Motivated by an interdisciplinary question of whether a resource-storing mechanism favors “the wealthy do fight” or “the wealthy do not fight,” we establish a new model based on spatial prisoner's dilemma (SPD) game where a time-accumulating payoff is allowed, and the probability of game participation depending on wealthiness is introduced. Althoug...
Article
Full-text available
COVID-19 has shown that quarantine (or self-isolation) may be the only available tool against an unknown infectious disease if neither an effective vaccine nor anti-viral medication is available. Motivated by the fact that a considerable number of people were not compliant with the request for self-quarantine made by public authorities, this study...
Article
Full-text available
With the rapid prosperity of the global economy and industry, as the energy demand, many factors influence power-producing sectors, including government incentives, customer demand, production cost, eco-friendly, and investors investment. To analyze the cost-benefit-subsidy in power generator system under the evolutionary game setting, we considere...
Article
Full-text available
Vaccination, if available, is the best preventive measure against infectious diseases. It is, however, needed to prudently design vaccination strategies to successfully mitigate the disease spreading, especially in a time when vaccine scarcity is inevitable. Here we investigate a vaccination strategy on a scale-free network where susceptible indivi...
Article
Full-text available
In the wake of COVID-19, mask-wearing practice and self-quarantine is thought to be the most effective means of controlling disease spread. The current study develops an epidemiological model based on the SEIR process that takes into account dynamic human behavior toward those two preventive measures. In terms of quantifying the effect of wearing a...
Article
Full-text available
We present the pair approximation models for susceptible–infected–recovered (SIR) epidemic dynamics in a sparse network based on a regular network. Two processes are considered, namely, a Markovian process with a constant recovery rate and a non-Markovian process with a fixed recovery time. We derive the implicit analytical expression for the final...
Preprint
Full-text available
In this study, a new continuum traffic model is established in consideration of the diverse reactivity effect that emerges from driving attention and the vehicle’s inertia. To instigate this diverse reactivity effect, two new functions are introduced, namely, a driver’s sensitivity function relying on the flow field’s instantaneous density that fol...
Article
A new cellular automata traffic model based on Revised S-NFS model is established to consider a mixed flow system in which the maximal velocity of the agents is distributed, as is the case in a real traffic flow fields composed of compact vehicles, trucks, and buses. These vehicles are assigned on of two different strategies: cooperator (C), who re...
Article
To reproduce homogeneous flow fields above urban-like turbulent boundary layers in computational fluid dynamics (CFD), numerous CFDs with a limited numerical domain employ periodic boundary conditions in both lateral directions with artificial momentum provision to maintain airflows. Although such artificial momentum sources are clearly different f...
Article
The velocity field in a naturally ventilated building within urban-like arrays was explored by means of large-eddy simulations. The reduced-scale building models were utilized to examine the impact of the geometric conditions in surrounding buildings and cross-ventilating windows on flow statistics as well as instantaneous velocity fields in a shel...
Article
In recent years, a bottom-up approach based on building-energy simulations coupled with stochastic modelling of occupant behaviours has been intensively developed to properly estimate the effect of diverse and stochastic occupant behaviours on energy loads, mainly for developing smart building-energy-management systems and the promotion of renewabl...
Chapter
The context of social dilemma is of great interest in evolutionary game theory because of its importance in explaining the evolution of cooperation in biological systems. The dilemma strength parameters have been used to numerically characterize the social dilemma to understand how much dilemma existing in a game. However, these parameters cannot b...
Preprint
Full-text available
Background: COVID-19 is a transmissible viral disease that has spread around the world rapidly and is currently a significant thread to developing and impoverished country by the World Bank and WHO’s prediction. Without inventing vaccination or the proper treatment, how we control the transmission of the COVID-19 is one of the most important questi...
Article
Full-text available
In this paper, a new continuum traffic model is developed considering the backward-looking effect through a new positive backward equilibrium speed function. As compared with the conventional full velocity difference model, the backward equilibrium velocity function, which is largely acceptably grounded from mathematical and physical perspectives,...
Article
Full-text available
Do individuals enjoying a higher baseline payoff behave similarly in competitive scenarios compared to their counterparts? The classical replicator equation does not answer such a question since it is invariant to the background or baseline payoff of individuals. In reality, however, if one's baseline payoff is higher than the possible payoffs of a...
Article
Full-text available
Spirulina platensis has been considered a promising source of food supplement to combat malnutrition worldwide. Numerous investigations have stated its immune activity, ability to absorb CO2 during the growth period, and antioxidant potential. Well-known theoretical biomass kinetic model sheds are capable of qualitative analysis of the fast microal...
Article
Full-text available
In the vaccination game, the spread of disease and the human decision-making to obtain pre-emptive vaccinations are coordinately united in successive seasons. This is backed both by epidemiological models, such as SIR, and by evolutionary game theory, assuming a given strategy-updating rule. Several rules have been proposed by the community and rel...
Article
Full-text available
In this study, we propose an information-sharing traffic flow model by considering multiple preceding cars and system time delay effect to reproduce a more likely flow field given the dissemination of intelligent transportation systems with wireless communication. The flow field would be robustly stable and efficient if the information on each vehi...
Article
Full-text available
Feedback-evolving games characterize the interplay between the evolution of strategies and environments. Rich dynamics have been derived for such games under the premise of the replicator equation, which unveils persistent oscillations between cooperation and defection. Besides replicator dynamics, here we have employed aspiration dynamics, in whic...
Article
Full-text available
Social norms have a profound influence on the perception of vaccination. People's attitudes toward vaccination reflect their inherent recognition of the trade-off between vaccine acceptance and risk of infection. Here we model a new path of cyclic epidemic dynamics in vaccination aspects by considering the vaccine acceptance and fear of infection,...
Article
Full-text available
In the midst of the COVID-19 pandemic, with limited or no supplies of vaccines and treatments, people and policymakers seek easy to implement and cost-effective alternatives to combat the spread of infection during the pandemic. The practice of wearing a mask, which requires change in people's usual behavior, may reduce disease transmission by prev...
Article
Full-text available
In this paper, we discuss the theoretical interpretation of the artificial compressibility method (ACM) to propose a new explicit method for the unsteady numerical simulation of fluid flow. The proposed method employs the compressible continuity and Navier–Stokes equations, which facilitates the replacement of pressure as one of the major variables...
Preprint
Full-text available
In this paper, a new continuum traffic model is developed considering the backward-looking effect through a new positive backward equilibrium speed function. As compared with the conventional full velocity difference model, the backward equilibrium velocity function, which is largely acceptably grounded from mathematical and physical perspectives,...
Preprint
Full-text available
In this paper, a new continuum traffic model is developed considering the backward-looking effect through a new positive backward equilibrium speed function. As compared with the conventional full velocity difference model, the backward equilibrium velocity function, which is largely acceptably grounded from mathematical and physical perspectives,...
Article
Full-text available
In the wake of the novel coronavirus, SARS-CoV-19, the world has undergone a critical situation in which grave threats to global public health emerged. Among human populations across the planet, travel restraints, border enforcement measures, quarantine, and isolation provisions were implemented to control and limit the spread of the contagion. Dec...
Chapter
This chapter presents the fundamentals of mathematical epidemiology and vaccination games. Mathematical epidemiology is based on a set of ordinary differential equations (ODEs) that are used to depict the global time evolution of a disease. This field has roots back to the SIR model of Kermack and McKendrick (1927), which was established in 1927. T...
Chapter
This chapter shows another possible application of mathematical epidemiology. When considering either the vaccination or intervention-game framework, it is necessary to combine the mathematical-epidemiological model as a foundation—for instance, by combining the SIR process with evolutionary game theory to quantify the time evolution of an individu...
Chapter
The conventional vaccination game always assumed pre-emptive vaccination, by which an individual decides whether or not to participate in a vaccination game prior to an epidemic season. This chapter develops a new vaccination-game framework where not only pre-emptive vaccination but also late vaccination is available, which is more realistic. The t...
Chapter
This chapter presents the mathematical fundamentals of evolutionary game theory. Game theory provides the mathematical foundation for quantifying human decision-making for choosing strategies. There are several varieties of “games” in game theory, including zero-sum (constant-sum) games (in which one is either a winner or a loser) or non-zero-sum (...
Chapter
This chapter presents the background and motivation for why this book came about. Needless to say, this book has two key words besides “sociophysics,” and these are “evolutionary game” and “mathematical epidemiology.” Game theory is a contemporary mathematical concept founded in the middle of the twentieth century by the milestone work of John von...
Chapter
The media effect is expected to deliver appropriate information to the people, allowing them to prepare some provisions for the spread of a disease in advance. As discussed in Chap. 4, gargling, wearing a mask, or avoiding crowds to maintain a “social distance” may help to considerably reduce the transmission rate. The effect from such social preve...
Chapter
There are two main types of influenza viruses, A and B, with several subtypes that are commonly found to circulate among humans. The trivalent (TIV) flu vaccine targets two strains of influenza A and one strain of influenza B. The quadrivalent (QIV) vaccine targets one extra B-virus strain, ensuring better protection against influenza; however, the...
Chapter
As we have discussed, pre-emptive vaccination is one of the most effective intervention measures for preventing the spread of a seasonal disease like influenza. This chapter explores a substantially important question of what kind of subsidy policy can minimize the holistic social cost, as quantified by the average social payoff (ASP). Roughly spea...
Chapter
Immunity is an indispensable function of biological defense system that protects us against being infected with same pathogen again. Although some kinds of immunity last for long time, almost life span, it is, in general, degrading gradually. This chapter introduces a simplified theoretical framework embedded into an epidemiological model so that b...
Chapter
The intervention-game framework introduced in Chap. 4 included provisions for vaccination and intermediate defense measures (IDM), which were defined as voluntary strategies decided upon by individuals. This Chapter introduces another framework for interventions that are forcefully imposed upon individuals, regardless of their intentions. These inc...
Chapter
An either-or choice between pre-emptive vaccination or antiviral treatment for influenza raises an interesting question: which strategy should be taken to minimize the risk or maximize the expected benefit? In terms of information advantage, antiviral treatment, which is taken later, would be more advantageous than the prior-investment option that...
Chapter
In this chapter, we apply the concept of a vaccination game, using mathematical epidemiology to capture the spread of an epidemic and evolutionary game theory to model the time evolution of human decision making. We discuss how allowing multiple alternatives to committing to a vaccination changes social equilibrium and impacts the final epidemic si...
Article
Full-text available
With the aid of the evolutionary vaccination game on a scale-free network, we design a new subsidy policy, named degree dependent subsidy, where cooperative agents get incentives according to their connectivity or degree. That is, agents, having a greater degree, receive a higher incentive, and vice versa. Here we presume that vaccinators are coope...
Article
Full-text available
This study characterizes the indoor airflow and occupants’ thermal sensations in a cross-ventilated building model sheltered by generic cube arrays based on large-eddy simulations (LESs). Four ventilation models, which comprise different cross-ventilating openings, streamwise (STR) and lateral (LAT) windows, and block arrangements, lattice-type squ...
Article
A co-evolutionary model of both network and mixed strategy is proposed in this study. The assigned strategy si of agent i is defined by a real number ranging from 0 to 1, which probabilistically ordains a subsequent action of either cooperation or defection as the agent’s offer. We assume a network dynamic to support or hamper the enhancement of co...
Article
We successfully establish a theoretical framework of pairwise approximation for the vaccination game in which both the dynamic process of epidemic spread and individual actions in helping prevent social behaviours are quantitatively evaluated. In contrast with mean-field approximation, our model captures higher-order effects from neighbours by usin...
Article
Full-text available
Forecasting the dynamics of flu epidemics could be vital for policy-making concerning the allocation of public health resources. Reliable predictions about disease transmission networks also help fix the benchmark for reconciling diverse aspects to the decision-makers while selecting and implementing a suitable health intervention. To this aim, we...
Book
This book presents the fundamentals of evolutionary game theory and applies them to the analysis of epidemics, which is of paramount importance in the aftermath of the worldwide COVID-19 pandemic. The primary objective of this monograph is to deliver a powerful tool to model and analyze the spread of an infectious disease during a pandemic as well...
Article
Full-text available
The difference between conventional replicator dynamics and pairwise (PW) nonlinear Fermi dynamics can be discerned by studying the evolutionary dynamics of the interactions between the symmetric cyclic structure in the rock–paper–scissors game and inter- and intraspecific competitions. Often, conventional replicator models presume that the payoff...
Article
Full-text available
As protection against infectious disease, immunity is conferred by one of two main defense mechanisms, namely (i) resistance generated by previous infection (known as natural immunity) or (ii) by being vaccinated (known as artificial immunity). To analyze, a modified SVIRS epidemic model is established that integrates the effects of the durability...
Article
Full-text available
What do corruption, resource overexploitation, climate inaction, vaccine hesitancy, traffic congestion, and even cancer metastasis have in common? All these socioeconomic and sociobiological phenomena are known as social dilemmas because they embody in one form or another a fundamental conflict between immediate self-interest and long-term collecti...
Article
Full-text available
The unprecedented global spread of COVID-19 has prompted dramatic public-health measures like strict stay-at-home orders and economic shutdowns. Some governments have resisted such measures in the hope that naturally acquired shield immunity could slow the spread of the virus. In the absence of empirical data about the effectiveness of these measur...
Article
Full-text available
Imitation and aspiration update rules are frequently observed in human and animal populations. While the imitation process entails payoff comparisons with surroundings, the aspiration process refers to self-evaluation. This work explores the evolution of cooperation in dyadic games under the coexistence of these two dynamics in an infinitely large...
Article
Full-text available
We introduce a new spatial prisoner's dilemma (SPD) model in which the so-called network reciprocity is enhanced more than in the conventional model. In addition to the usual binary strategies-perfect cooperator and perfect defector-we introduce "fence-sitters", who either cooperate or defect with equal probability, as a third strategy. In regions...
Article
A new cellular automata traffic model based on the revised S-NFS model was established to consider a mixed flow of automated and human-driven vehicles assuming a multi-lane system. The model further classified automated vehicles into two categories: (1) vehicles with adaptive cruise control and (2) those with cooperative adaptive cruise control tha...
Article
In line with more enhanced network reciprocity, we built a new spatial prisoner's dilemma (SPD) game considering conformity with presumption of lattice for underlying network and pairwise Fermi (PW-Fermi) for update rule. The key protocol is that a neighbor with more weight resulting from the conformity would be more likely selected as a pairwise o...
Article
The unprecedented global spread of COVID-19 has prompted dramatic public-health measures like strict stay-at-home orders and economic shutdowns. Some governments have resisted such measures in the hope that naturally acquired shield immunity could slow the spread of the virus. In the absence of empirical data about the effectiveness of these measur...
Article
Full-text available
In 2019, Bangladesh has grappled with a record-breaking surge in dengue fever, experiencing the highest number of dengue cases since the year 2000. Together, the intensification of dengue fever combined with a lack of dengue vaccines and appropriate medicines are expected to further the public and government's interests in appropriate and potential...
Article
Full-text available
Game theory has been extensively applied to elucidate the evolutionary mechanism of cooperative behaviour. Dilemmas in game theory are important elements that disturb the promotion of cooperation. An important question is how to escape from dilemmas. Recently, a dynamic utility function (DUF) that considers an individual's current status (wealth) a...
Article
Full-text available
Vaccinating decisions can be influenced by imitation as well as self-evaluation or aspiration. This work endeavors to analyze vaccinating behaviors by coupling both-imitation and aspiration-update rules, adopting an existing setup of mean-field vaccination game. We incorporate the imitation mechanism with several variants of aspiration protocol, en...
Article
Full-text available
Records of epidemics acknowledge immunological multi-serotype illnesses as an important aspect of the occurrence and control of contagious diseases. These patterns occur due to antibody-dependent-enhancement (ADE) among serotype diseases, which leads to infection of secondary infectious classes. One example of this is dengue hemorrhagic fever and d...
Article
Full-text available
In the context of voluntary vaccination, we consider two additional provisions as well as pre-emptive vaccination for a unified model over epidemiology and evolutionary game theory to assess the extent to which advanced and late provisions restrict the spread of disease. To circumvent infection, people can be vaccinated pre-emptively before the epi...
Preprint
Full-text available
In the wake of the novel coronavirus, SARS-CoV-19, the world has undergone a critical situation in which grave threats to global public health emerged. Among human populations across the planet, travel restraints, border enforcement measures, quarantine, and isolation provisions were implemented in an attempt to control and limit the spread of the...
Article
Full-text available
The aim of this study is to verify whether a human can detect the social dilemma class and its strength for four various games: Prisoner's dilemma, Trivial, Chicken, and Stag-Hunt by using a web-based structural cross-sectional survey. We considered respondent's cooperative and defective behavior by designing multiple sets of 2 × 2 games for two cl...