This paper reports on the results of a literature review and text-mining analysis conducted to understand how the kawaii emotion had been expressed in Japanese. The Japanese term kawaii can be translated to English as lovable, cute, pretty, and sweet comprehensively. In Japanese, the kawaii emotion had long been expressed using different words, many of which have multiple other meanings. In addition, some words that had been used to express the kawaii emotion took on new meanings. The words that had been exclusively used to refer to the kawaii emotion are megushi, utsukushi, rotashi, kahayushi, and shiorashi. In modern Japanese, nuances such as ‘sweet’ and ‘pitiful’ were removed from the concept of kawaii whereas others such as ‘smiling’ were added.

The quantification is required about application feeling of the skin lotion when it is designed and evaluated. In this paper, we propose a system that estimates the application feeling by temperature measurement in order to realize an objective and quantitative evaluation. We measured the temperatures on the finger-shaped sensor and the applied table during the application of the lotion. The measurements were conducted by a proposed measurement system that simulates the application movement. Seven independent features were calculated from the measured temperature waveform, and the relationship with the five application feelings was modeled by multiple regression analysis. The resulting estimation model of the application feelings showed high accuracy. Therefore, we concluded that the proposed measurement system is applicable for estimation application feeling of the skin lotion.