免疫システムのメカニズムを用いた感情の計算モデル
A Computational Model of Emotion using the Mechanism of the Immune System

小野 哲雄 ONO Tetsuo佐藤 理史 SATO Satoshi

Vol.2, No.3 (August 1995), pp.48-65. Received 1994/8/29, accepted 1995/3/28.


We propose a computational model of emotion using the mechanism of the immune system. This model is inspired by the observation that emotion is similar to the immune system, in that each is a result of a self-defense system that is capable of adapting to the environment.

The main component of this model is a body , in which many cells undergo Brownian Motion. Each cell has energy and characteristics that correspond to one of the five ego states in transactional analysis (Berne, 1964). The cells' state as a whole is its emotional state . Some cells are activated when antigens invade the body, and they work to sweep away those antigens. This process changes the emotional state.

We implemented this model, and the results of experiments indicate that the model has the following two characteristics, which other models have not been able to achieve:

  1. Emotional states change continuously.
  2. Emotional states change in response to stimuli (antigens) according to the state at that moment and its past changes.
We implemented a dialogue system using this model and found that the system can imitate human dialogues.
keywords: 感情の計算モデル computational model of emotion, 免疫システム immune system,交流分析 transactional analysis, 自己防衛システム self-defense system
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