Three-way conceptual approach for cognitive memory functionalities
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ORIGINAL ARTICLE
Three-way conceptual approach for cognitive memory functionalities Radhika Shivhare1 • Aswani Kumar Cherukuri1
Received: 6 July 2016 / Accepted: 3 September 2016 Ó Springer-Verlag Berlin Heidelberg 2016
Abstract Human brain represents the information and stores it as memory. They are stored in different parts of the brain and are linked together by associations. When a cue is provided, the memory is recalled through association. Encoding of the real world information is in the form of object-attribute relation. It is possible to perform both positive recall (object having the attribute and attribute shared by object) and negative recalls (object not having the attribute and attribute not shared by object) from memory. It is evident from literature that the formal concept analysis (FCA) based on bidirectional associative memory (BAM) performs only positive recall from memory. In this paper, FCA based on BAM is extended to threeway formal concept analysis (3WFCA) to achieve a more precise recall. In this extended model, both positive recall and negative recall are performed. In order to achieve this objective, an extra operator namely negative operator is added. The proposed model is validated with an experiment on real world scenario. We also presented the connection of the proposal with long term potentiation (LTP) and Hippocampus of the human brain. Keywords Memory Cognition Three-way decision Formal concept analysis Three-way formal concept analysis
& Aswani Kumar Cherukuri [email protected] 1
School of Information Technology and Engineering, VIT University, Vellore 632014, India
1 Introduction Decision making is an involuntary human behaviour in which an action is chosen based on a set of criteria. This human behaviour has intrigued research in different disciplines such as cognitive science, psychology, cognitive informatics and statistics [1–3] that study the process of decision making in the human brain for computational purposes. Various cognitive decision making and learning models have been proposed in the literature [1, 3–9]. The theory of decision making leads to a new postulation known as three-way decisions (3WD) [4] which extends the model of binary decision making. The idea behind 3WD is to divide the universe into three pairwise disjoint regions: (1) POS (region of acceptance) (2) NEG (region of rejection) and (3) BND (region of non—commitment) respectively and the rules are constructed upon these regions. Concept is the basic unit of human thought and it underlines the human insight and communication [10]. Use of various types of concepts such as an abstract concept [11], Wille’s concept [12], and approximate concept [13, 14] is seen in various fields of cognitive processes such as categorization, memory, decision making, learning, and inference [15]. A concept is composed of two parts: set of objects (extent) and set of attributes (intent). One of the most influential theories in formalizing concepts is formal concept analysis (FCA) proposed by Wille in 1982 [12]. Ac
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