Yuri Hamada

A Study on Group Decision Making with Observation on the Process of Consensus Building

It can be said that consensus building is group decision making. In group decision making support method, it has been focused on whether we can make a rational decision by using mathematical method. However, in daily life, people perform harmonious consensus naturally and make a decision that all the members satisfy. Therefore, the authors observed the process on consensus building with selection problem and compared a decision by mathematical method with it by discussion. Then, we proposed method that input a personal evaluation reason to choices in online and discuss GDSS (Group Decision Support System).

How to Model Value-Creating Communication

The authors are conducting research on “Value-creating communication”. Value-creating communication process is a process that people embody and clarify their own values and form new values through communication. Therefore, we analyze the collaboration process of interior coordination as an example of value-creating communication. First, we took notice of remarks and analyzed collaboration process qualitatively. Then, we revealed the characteristics of the internal value creation. Second, we modeled collaboration process using Bayesian network and examined the validity and usefulness of the constructed model. A feature of the Bayesian network is to predict the likelihood and possibility of occurrence of an uncertain event by expressing the causal structure as a network and then performing probabilistic reasoning. As a result, we found that the point which participants pay attention to is different in respective items. Furthermore, “conception” affected the choice of the item, and it was suggested that the share of “conception” is important to support collaboration process.

Difference in focus points between experts and non-experts while watching soccer game

As study on information recommendation suitable for individuals, there are many study consideration of personal preference, but few studies consider the degree of specialization. Therefore, in this study, we aim to propose information recommendation method suitable for personal degree of specialization. In this paper, as the first stage, we will clarify the difference between the viewpoint of experts and non-experts in watching soccer game. We converted the conversation about soccer game into text data and analyzed it. As a result, the expert group used the vocabulary such as technique, position and area to grasp details of the game. It turned out that non-expert group focused attention on visual information.

How to Model Value-Creating Communication: Coaching Process as an Example

The authors are conducting research on “Value-creating communication”. Therefore, we analyze the career coaching process as an example of value-creating communication. First, we took notice of remarks and analyzed coaching process qualitatively. Then, we revealed three types of coaching pattern and we found that the career coaching process had two phases, in which under-standing and then consent is enhanced. Second, we modeled coaching process using Bayesian network and examined the validity and usefulness of the constructed model. As a result, we clarified the change of client’s consciousness using mathematical method Bayesian network.