Quality assessment method of multi-source position trajectory data based on AHP

Abstract

The invention discloses a quality assessment method of multi-source position trajectory data based on AHP and mainly relates to the technical field of data quality assessment. The method comprises thesteps of (S1) making a dynamic data quality assessment process with a feedback mechanism, (S2) determining an assessment index system of quality data according to the data quality assessment process,(S3) establishing a corresponding data quality assessment model according to the assessment index system, (S4) determining a single-resource location trajectory data quality assessment index weight according to the data quality assessment model, (S5) determining a multiple-resource location trajectory data quality assessment index weight according to the data quality assessment model, and (S6) applying the data quality assessment model to measure the data quality. The method has the advantages that the method can be adapted to quality assessment requirements of multiple-source and heterogeneous data sources by various applications in the era of big data, proposed assessment indexes are quantifiable analysis indexes, and the development of subsequent quality assessment software is facilitated.

Description

technical field [0001] The invention relates to the technical field of data quality assessment, in particular to an AHP-based quality assessment method for multi-source position trajectory data. Background technique [0002] With the continuous deepening of my country's urbanization process, large and medium-sized cities generally face problems such as traffic congestion, environmental pollution, aging society, and shortage of land resources. In recent years, civilian GPS and other positioning devices have been widely used in vehicles and mobile terminals, which has led to the rapid development of location-based services (Location Based Service, LBS) and mobile social networks (Mobile Social Network). As the main body of the mobile social network, the location track brought by people's mobility not only records the history of people's behavior, but also records the interaction information between people and society. The analysis and utilization of location trajectory data i...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method that can solve the static quality evaluation process of the existing location trajectory, the evaluation index and evaluation model are simple, and there is no general evaluation standard and measurement method in the multi-source location trajectory fusion. AHP-based quality assessment method for multi-source location trajectory data

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