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Creation of knowledge-added concept maps: time augmention via pairwise temporal analysis

Elan Sasson (Tel Aviv University, Tel Aviv, Israel)
Gilad Ravid (Ben-Gurion University of the Negev, Beer-Sheva, Israel)
Nava Pliskin (Ben-Gurion University of the Negev, Beer-Sheva, Israel)

Journal of Knowledge Management

ISSN: 1367-3270

Article publication date: 13 February 2017




Although acknowledged as a principal dimension in the context of text mining, time has yet to be formally incorporated into the process of visually representing the relationships between keywords in a knowledge domain. This paper aims to develop and validate the feasibility of adding temporal knowledge to a concept map via pair-wise temporal analysis (PTA).


The paper presents a temporal trend detection algorithm – vector space model – designed to use objective quantitative pair-wise temporal operators to automatically detect co-occurring hot concepts. This PTA approach is demonstrated and validated without loss of generality for a spectrum of information technologies.


The rigorous validation study shows that the resulting temporal assessments are highly correlated with subjective assessments of experts (n = 136), exhibiting substantial reliability-of-agreement measures and average predictive validity above 85 per cent.

Practical implications

Using massive amounts of textual documents available on the Web to first generate a concept map and then add temporal knowledge, the contribution of this work is emphasized and magnified against the current growing attention to big data analytics.


This paper proposes a novel knowledge discovery method to improve a text-based concept map (i.e. semantic graph) via detection and representation of temporal relationships. The originality and value of the proposed method is highlighted in comparison to other knowledge discovery methods.



Sasson, E., Ravid, G. and Pliskin, N. (2017), "Creation of knowledge-added concept maps: time augmention via pairwise temporal analysis", Journal of Knowledge Management, Vol. 21 No. 1, pp. 132-155.



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