Inhalt des Dokuments
Data Profiling Book published
- © Morgan Claypool
We are happy to announce that our book on "Data Profiling", written by Ziawasch Abedjan, Lukasz Golab, Felix Naumann, and Thorsten Pappenbrock, is published by Morgan and Claypool and available for purchase. Clicking on the thumbnail will lead you to the publishers page.
Data profiling refers to the activity of collecting data about data, i.e., metadata. Most IT professionals and researchers who work with data have engaged in data profiling, at least informally, to understand and explore an unfamiliar dataset or to determine whether a new dataset is appropriate for a particular task at hand. Data profiling results are also important in a variety of other situations, including query optimization, data integration, and data cleaning. Simple metadata are statistics, such as the number of rows and columns, schema and datatype information, the number of distinct values, statistical value distributions, and the number of null or empty values in each column. More complex types of metadata are statements about multiple columns and their correlation, such as candidate keys, functional dependencies, and other types of dependencies.