Object-oriented knowledge framework for modelling human mastication of foods

Authors:
D. Xie;W. L. Xu;K. D. Foster;J. Bronlund
Affiliations:
School of Engineering and Advanced Technology, Massey University, Auckland, New Zealand;School of Engineering and Advanced Technology, Massey University, Auckland, New Zealand;Institute of Food, Nutrition and Human Health, Massey University, Auckland, New Zealand;School of Engineering and Advanced Technology, Massey University, Auckland, New Zealand
Venue:
Expert Systems with Applications: An International Journal
Year:
2009

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Abstract

To model human mastication of foods, an object-oriented knowledge framework is developed that consists of three class objects, one for the physiology related to the mastication, one for the masticatory measurements, and the other for the factors affecting mastication. Each class object is structured in a hierarchy of sub-objects according to the domain or literature knowledge. The knowledge about the relationships among the attributes of objects is represented by IF-THEN rules. These rules can be discovered from the experimental database following the knowledge discovery in database. A case study is presented where a foods chewing database involving EMG mandibular movement measurements is used, two decision trees are discovered with respect to the type of rheological properties and hardness, and the rules derived are expressed in the context of the knowledge framework.