Open Access

ARTICLE

Association Link Network Based Concept Learning in Patent Corpus

Wei Qin, Xiangfeng Luo

School of Computer Engineering and Science, Shanghai University, China

* Corresponding Author: Wei Qin,

Intelligent Automation & Soft Computing 2018, 24(3), 653-661. https://doi.org/10.31209/2018.100000032

Abstract

Concept learning has attracted considerable attention as a means to tackle problems of representation and learning corpus knowledge. In this paper, we investigate a challenging problem to automatically construct a patent concept learning model. Our model consists of two main processes; which is the acquisition of the initial concept graph and refined process for the initial concept graph. The learning algorithm of a patent concept graph is designed based on the Association Link Network (ALN). A concept is usually described by multiple documents utilizing ALN here in concept learning. We propose a mixture-ALN, which add links between documents and the lexical level, compared with the ALN. Then, a heuristic algorithm is proposed to refine the concept graph, leading to a more concise and simpler knowledge for the concept. The heuristic algorithm consists of four phases; first, for simplifying bag of words for concept in patent corpus, we start to select a core node from the initial concept graph. Second，for learning the association rule for the concept, we searched important association rules around the core node in our rules collection. Third, to ensure coherent semantics of the concept, we selected corresponding documents based on the selected association rules and words. Finally, for enriching semantics of the refined concept, we iteratively selected core nodes based on the corresponding documents and restarted our heuristic algorithm. In the experiments, our model shows effectiveness and improvements in prediction accuracy in the retrieve task of the patent.

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Keywords

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