The 1-Nearest-Neighbor Rule (1-NN) is the simplest and most naturalclassification rule.
最邻近法则（1-NN）是最简单和最为自然的分类法则。
2
From the artistic typological perspective, this paper expounds the logical and the naturalclassification systems of art.
本文从艺术类型学出发，系统阐述了艺术的逻辑分类体系和自然分类体系。
3
According to the American Heritage Stedman's Medical dictionary, taxonomy is "the classification of organisms in an ordered system that indicates natural relationships." 1.
根据《American Heritage Stedman ' s Medical Dictionary》的定义，分类是“划分有序系统中组织的类别，以指示自然关系。”