Data storage method of uncertain data

Abstract

The invention discloses a data storage method of an uncertain data. The data storage method comprises the following steps: when the uncertain data is recorded and stored, establishing a record-level uncertain element group according to uncertain condition of every record, and classifying all uncertain data included in the record according to the property name, and respectively establishing the property unit of the property name according to the property name; forming a property unit set, establishing a property including unit according to the property name of every property unit in the property unit set, and establishing a line unit for every record; integrating all recorded record-level uncertain element groups, the property unit set, the property including unit and the line unit to be a logical model of the uncertain data, and storing the uncertain data logical model and corresponding data; as for the uncertain data logic model, taking the property name as the index item and establishing a property index tree; establishing and generating a rule matrix according to the generation rule of the uncertain data records; in querying, the uncertain data logic model is applied to query according to the condition property of a querying sentence.

Description

technical field [0001] The invention belongs to the technical field of data storage, and in particular relates to a data storage method for uncertain data. Background technique [0002] In recent years, with the rapid development of the Internet and the continuous improvement of data collection technology, the amount of data available to people is increasing, which brings new challenges to the query and management of specific information in the big data environment. At the same time, due to the error of data sensing equipment or the privacy protection of sensitive information, the data obtained in military, logistics, financial and other fields often cannot accurately describe the characteristics of the data, that is, the obtained data is uncertain. Uncertain data refers to data that is actually obtained, imprecise, and has no definite value, such as GPS positioning data, national population data, etc. Compared with deterministic data, the biggest feature of uncertain data ...

AI Technical Summary

Problems solved by technology

Although this storage method is simple and convenient in terms of model implementation and operation, it is only applicable to a single type of uncertain data. For the coexistence of different levels of uncertain data, such as attribute-level uncertain data and record-level Uncertain data coexists, and the existing model fails to provide effective coping strategies, resulting in a single, rigid storage model structure and insufficient scalability

At the same time, due to the inefficiency of the existing data storage structure, there is no efficient and reasonable index structure to assist the data query process, the existing model cannot realize the conversion from existing definite data to uncertain data with low space and time overhead, and it is difficult to meet the requirements of large Application requirements for uncertain data query and analysis scenarios in the data environment

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