Koya Kimura

A Leader and Media Spot Estimation Method Using Location Information

This research aims to characterize the system of local resident-based regional activations using ICT. It verifies the hypothesis that an individual participates aggressively in the local community planning only when the main activity does not take place in the home and workplace. Verification was conducted by employing a proposed leader estimation method that uses kernel density estimation (KDE) and evaluated questionnaire results. This method was applied to location information gathered between August 1 and 31 in 2015. This research finds that KDE can serve as a visualization method to promote awareness.

Does ICT Promote the Private Provision of Local Public Goods

In this paper, we found three conditions to clarify the social network structure for local people solving local problems with social network analysis. One is that a core group exists in the community; the second is that the inside of the core group is an exclusive network; and the third is that a person who has high value of Betweenness centrality is next to the core group. And we showed that using ICT increases the density of the social network in our case.

A System to Visualize Location Information and Relationship Integratedly for Resident-centered Community Design

This research aims to realize the resident-centered community design by utilizing of information and communication technology (ICT), and create an opportunity to regain relationship within the community by visualizing media spot defined as the place where communication is active in an area. In order to visualize and analyze the location information and the relationship integratedly, we developed a system using the Web interface. As a result of visualization using the system, it became easy to guess the type of meeting and attendees, which can help analysis. On the other hand, it turned out that there is room for improvement in drawing speed and analysis efficiency.

Case Study on Motivation to Participate in Private Provision of Local Public Goods and Time Spent in the Region Measured Using GPS

It is known that one or more dedicated people with strong leadership skills typically participate in successful community activities. It is called “ultra-altruistic motivation”. These endeavors in various communities are often unsuccessful when the enthusiasm of the leaders and the residents toward the activities are not aligned. Some case study shows that the ultra-altruistic motivation works well and the private provision of local public goods has succeed. However, there are many kinds of local public goods, some cannot be provided by private sector, for example police, but some can be provided by private company like transportation services. Is it established even if the type of local public goods change?

Method to analyze a local community as a complex adaptive system for resident-centered local community vitalization

A community is a system that cannot exist without the involvement of self-motivated people, and it is composed of humans, “Mono,” “Koto”, and their relationality. “Mono” in Japanese denotes a physically perceived entity (tangible), while “Koto” denotes a cognitively conceived entity (intangible). In other words, a local community is a typical example of a complex adaptive system, and it can be simulated by a suitable model such as multi-agent systems approach; this implies that it is possible to develop a local community as a complex adaptive system using appropriate design and analysis. In this paper, we investigated the methods to analyze a local community. We visualized the day-wise relationships among the experimental participants using the passing-each-other data collected from them. As a result, we confirmed that each participant formed clusters that varied day-wise. We could also confirm several features which helped establish that a local community is a complex adaptive system. Furthermore, the results were strikingly different for a weekday compared to a holiday.

Willingness to pay for community bus services: A Japanese case study

This study aims to predict the demand for local public goods by local residents and to consider ways to promote diversification of the cost burden on supply. We employ a questionnaire survey on issues of current interest from the viewpoint of the cost burden associated with the operation of a community bus service. The surveys results showed that non-contact IC cards for mobile phones were almost never used. There was also a certain level of support toward collecting expenses through fares rather than through annual payments.

Analysis of Location Information Gathered Through Residents’ Smartphones Toward Visualization of Communication in Local Community

This research aims to achieve the resident-centered community design by utilizing information and communication technology (ICT), and to create a trigger to regain rich relationship within a community by visualizing media spots which is defined as places where residents communicate much more than the other areas. In order to improve the media spot estimation method proposed by the previous research, we extracted and analyzed location information under various conditions. As a result, we could confirm that a portion of the highest density of location information corresponds to a resident’s home place, and found that a home place can be accurately derived irrespective of the scattering in accuracy. Also, the analysis on how the distribution of location information varies depending on time zone suggests that it is necessary to use location information which is minutely divided in time or aggregated every day of the week.

Does the Visualization of the Local Problem Bring Altruism

The purpose of this paper is to predict the demand for local public goods by local residents and to consider ways to promote diversification of cost burden on supply. We employ a questionnaire survey on issues of current interest from the viewpoint of the cost burden associated with the operation of a community bus service. From the survey results, it was established that there was almost no use of non-contact IC cards in the context of mobile phone usage. It was revealed that there was a certain level of support for collecting expenses through fares rather than through annual payments.

The Temporal Analysis of Networks for Community Activity

Using a questionnaire survey and a smartphone-based social experiment, we conducted a study of private non-profit organizations aiming to supply public goods during three periods. Using the data obtained, we identified a dynamic change in the communication by temporal network analysis and elucidated the relevant factors by panel analysis. From the result of this paper, it was shown that having effect by the period on network structure, and sex and Face to Face Communication where there were scale-free characteristics were unrelated to the information dispatch by the ICT.

A measurement of the local community activity by the place

This study aims to measure the relationship of a communication between human and place” global positioning system (GPS) data is utilized for place data. However, as premises are in close proximity with urban areas, a positioning residual occurs if only GPS data is used and specification of the location a place is difficult. Therefore, the place where people frequently gather is determined by the kernel analysis from the GPS data obtained in a field trial run. By using a kernel presumption and a social network analysis, it is shown that there is a place where a specific service and a subject group meets frequently.