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Spatio-Temporal Situation Recognition in Service Fields - Validation by Discrete-event Simulation

Recently, various kinds of ICT devices are introduced into service fields such as hospitals, nursing homes, hotels, restaurants, etc. One of the benefits of using ICT devices is that event logs consisting of time, location, and various data on workers’ activities are automatically collected by the devices, and valuable information toward improving the quality of the work can be extracted from the logs. In previous papers by the author, recognition of situations in service fields is studied, where a situation means that what is going on and what kind of activities is performed in the field. We propose a method that automatically recognizes the current situation based on the logs. The method is applied to a small number of real logs taken in a nursing home. In this paper, we validate the method using artificial logs generated by discrete event simulation. Moreover, we find cases that the proposed method does not work well, and show some idea for the improvement.