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Data quality issues in NoSQL databases

In the era of big data, NoSQL (not only structured query language) databases are gaining significance. NoSQL databases offer high performance, availability, scalability, and storage. They have flexible and simple architecture. These characteristics make them a popular candidate for big data analytics.Analysis of big data enables organisations to make informed decisions and decide on strategic moves. However, these decisions can be detrimental to the progress of organisations if the quality of input data is poor, bringing forth the significance of …

Study level
Master of Philosophy, Honours, Vacation research experience scheme
Faculty
Science and Engineering Faculty
School
School of Information Systems
Research centre(s)
Centre for Data Science

Preventing data quality problems in process mining

Process mining is an established approach to analysis of processes based on data found in event logs.Given its use of event data as a starting point, recommendations for business process improvement are evidence-based. As such, there's an increased interest in process mining, both in academia and in industry.Process mining results heavily depend on the quality of event log data. As the saying goes: garbage in, garbage out.While approaches exists that try and repair problematic data, this project will focus on …

Study level
PhD
Faculty
Science and Engineering Faculty
School
School of Information Systems
Research centre(s)
Centre for Data Science

Understanding the mechanisms of improving log quality in different process mining tools

Process mining is a specialised form of data-driven process analytics where process data is analysed to uncover the real behaviour and performance of business operations. This data is usually collated from the different IT systems typically available in organisations.For the data and process analysis to be accurate, the accuracy of data is crucial. This identifies the significance of the quality of logs supplied for analysis.It's the responsibility of the process analyst to identify, assess and remedy the data to reduce …

Study level
PhD, Master of Philosophy, Honours, Vacation research experience scheme
Faculty
Science and Engineering Faculty
School
School of Information Systems
Research centre(s)
Centre for Data Science

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