Context-Aware Systems and Applications, and Nature of Computation and Communication by Phan Cong Vinh & Abdur Rakib

Author:Phan Cong Vinh & Abdur Rakib
Language: eng
Format: epub
ISBN: 9783030343651
Publisher: Springer International Publishing

In the above process, building a question is an initial step, a basis for promoting the data analysis process. It can be said that data analysis cannot be performed if no questions are asked. Through a survey of research works, we found many author groups propose ways to classify data analysis questions. Based on the relevance of the question with data variables and data variable values, Bertin divided analytical questions into three levels, elementary level, intermediate level, and the overall level [4]. In which, the question at the elementary level relates to a value of a variable, the question at the intermediate level relates to a value group of a certain variable, the question is at an overall level related to can variables. Andrienko classifies analytical questions into two levels, elementary questions, and synoptic questions [17]. In addition, approach the use of data variables and data of data variables to answer questions for information extraction or knowledge search objectives, the authors Thi Nguyen et al. classified the analysis question into three levels [6], elementary questions related a value of a data variable, variation questions related to a group or whole value of a certain variable to understand the properties or rules of variable variation, correlation questions related many data variables to find the correlation between data variables to detect new rules of relationship between attributes.

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