Recently pattern mining has investigated closure operators in families of subsets of an attribute set that are not lattices. In particular, various authors have investigated closure operators starting from a context, in the Formal Concept Analysis (FCA) sense, in which objects are described as usual according to their relation to attributes, and in which a closed element is a maximal element of...

This work is motivated by knowledge discovery in attributed graphs. Our approach consists in extending the methodology of frequent closed pattern mining, as developed in Formal Concept Analysis (FCA), to the case where the objects in which attribute patterns may occur are the vertices of a graph, typically representing a social network. For that purpose we extend the framework of abstract conce...

Previous research has shown that people represent the abstract concept of time by constructing metaphoric mappings from the more concrete domain of space. Earlier studies have revealed that different spatial metaphorical mapping systems are employed when people think about time (e.g., front/back, ego-moving/time-moving). However, it is possible that the abstract concept of time is also represen...

Concepts are the most fundamental unit of cognition that carries certain meanings in expression, thinking, reasoning, and system modeling. In denotational mathematics, a concept is formally modeled as an abstract and dynamic mathematical structure that encapsulates attributes, objects, and relations. The most important property of an abstract concept is its adaptive capability to autonomously i...

Mechanisms of same/different concept learning by rhesus monkeys, capuchin monkeys, and pigeons were studied in terms of how these species learned the task (e.g., item-specific learning versus relational learning) and how rapidly they learned the abstract concept, as the training set size was doubled. They had similar displays, training stimuli, test stimuli, and contingencies. The monkey specie...

The position of noun is replaced by numerous concept types under the system of HNC Theory. Noun is called as a general designation describing objective entity, including type of g、z、r in abstract concepts and p、w、x in concrete concepts. Computers have difficulties in recognizing the relationship of preferential combination in Noun Conglomeration. The paper describes the combination of nouns in ...

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