ASSA: Agent-Based Simulation Model for Shop-Around Agent Model
In this chapter, I summarize previous research on models for shop-around behavior and demonstrate the significance of developing the agent-based model for shop-around behavior. Before going into detail about the model, a definition of shop-around behavior
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ASSA: Agent-Based Simulation Model for Shop-Around Agent Model Takumi Yoshida
Abstract In this chapter, I summarize previous research on models for shop-around behavior and demonstrate the significance of developing the agent-based model for shop-around behavior. Before going into detail about the model, a definition of shoparound behavior is given that focuses on its characteristics, planned actions, and improvised actions. Shop-around behavior is broken down into two axes: time sequence and processing target. I then describe the development of the agent-based pedestrian model that has a bounded rational planning function, an autonomous correction function, and a strengthening learning function that updates shop preferences based on walkaround results. The basis of the definition for shop-around behavior is “multi-purpose multi-stop.” I also present evaluation framework for this model consisting of five items in total, two for general evaluation and three for individual function evaluation.
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Significance of Developing This Model Definitions of Shop-Around Behavior
Before developing a shop-around behavior model, I will first define the characteristics of such behavior. The basis of the definition for shop-around behavior is “multipurpose multi-stop,” which includes the characteristics of O’Kelly (1981). In Japan, it is defined by Yuzawa et al. (1993) as a course of behavior whereby, “for example, when going to a commercial district by car a certain district is first selected for the purpose of parking, then another district is visited for shopping. . . followed by shopping around, and returning to the first district for the purpose of returning home.” Furthermore, Saito (2000) defines it as “consumer behavior to work around commercial facilities while changing their destination and purpose.” The common points in both are the focus on commercial facilities, such as shopping, food and drink, or entertainment facilities and the repeated purposeful movement T. Yoshida (*) Bureau of Housing and City Planning, Nagoya City Office, Nagoya, Japan e-mail: [email protected] © Springer Japan KK, part of Springer Nature 2020 T. Kaneda (ed.), Downtown Dynamics, Agent-Based Social Systems 16, https://doi.org/10.1007/978-4-431-54901-7_7
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between facilities. Kaneda et al. (2001) consider shop-around behavior to have three steps: “Potential visitors to the downtown area determine the commercial district to visit according to their purpose in STEP 1. Visitors to the downtown area who have arrived at the commercial district choose the type of facility for the purpose, such as shopping, in STEP 2 and then choose which zone of the facilities to visit in STEP 3. They walk around from one facility to another by repeating STEP 2 and STEP 3, which results in shop-around behavior.” While the first two definitions consider shop-around behavior to occur only in commercial districts, Kaneda et al. have a more comprehensive definition, as they view shop-around behavior as the entire series of steps encompassing de
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