Cognitive Semantic Analysis and Dynamic Generation of Cartographic Symbols

doi:10.11947/j.AGCS.2017.20160504

Abstract

Abstract: Location-based services (LBS) requires generating real-time personalized and dynamic cartographic symbols. In order to tackle this problem, this paper proposes a structural description model and a dynamic generation method of cartographic symbols based on cognitive analysis. Following the cognitive semantics principle of‘reality-cognition-symbol’, the description model elaborates the mapping mechanism between symbol graphics and symbol semantics, which uses symbol morphemes as atomic units and semantic structure as description framework. The generation method is composed of a context-free grammar model which uses rules to generate cartographic symbols on the basis of morphemes. Through the modelling of graphic morphemes, structural morphemes and rule-based generation system, a grammar compiler for dynamic generation of cartographic symbols is redesigned. Lastly, experiments of dynamic generation of cartographic symbols in different contexts and semantics are performed to verify the feasibility of the proposed method. Therefore, this study leads to a further understanding of cognition and structure principles of cartographic symbols, and also pushes forward dynamic generation of cartographic symbols for related industries and applications.

Key words: cartographic symbols, cognitive semantics, morpheme, context free grammar, dynamic generation

CLC Number:

P208

TIAN Jiangpeng, YOU Xiong, JIA Fenli, XIA Qing. Cognitive Semantic Analysis and Dynamic Generation of Cartographic Symbols[J]. Acta Geodaetica et Cartographica Sinica, 2017, 46(7): 928-938.

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