A Multi-Objective Approach to Big Data View Materialization

Akshay Kumar and T. V. Vijay Kumar
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Akshay Kumar: Jawaharlal Nehru University, India
T. V. Vijay Kumar: Jawaharlal Nehru University, India

International Journal of Knowledge and Systems Science (IJKSS), 2021, vol. 12, issue 2, 17-37

Abstract: Big data comprises voluminous and heterogeneous data that has a limited level of trustworthiness. This data is used to generate valuable information that can be used for decision making. However, decision making queries on Big data consume a lot of time for processing resulting in higher response times. For effective and efficient decision making, this response time needs to be reduced. View materialization has been used successfully to reduce the query response time in the context of a data warehouse. Selection of such views is a complex problem vis-à-vis Big data and is the focus of this paper. In this paper, the Big data view selection problem is formulated as a bi-objective optimization problem with the two objectives being the minimization of the query evaluation cost and the minimization of the update processing cost. Accordingly, a Big data view selection algorithm that selects Big data views for a given query workload, using the vector evaluated genetic algorithm, is proposed. The proposed algorithm aims to generate views that are able to reduce the response time of decision-making queries.

Date: 2021
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