Comparison of the nodes of knowledge method with other graphical methods for knowledge representation

One of the research paths in the field of artificial intelligence is knowledge representation. There are different approaches, formalisms, methods and languages. They vary from simple to complex and from less semantically rich to very expressive. In their previous papers, the authors introduced a new method for knowledge representation named Nodes of Knowledge (NOK), bearing the idea that it should be simple but semantically rich. This article presents a brief example of the basic concepts in the NOK method and its comparison with the following methods: Basic Conceptual Graphs, Multi-layered extended semantic networks, Hierarchical Semantic Form and Resource Description Framework. All these methods belong to the same class as the NOK method - graphical methods for knowledge representation.