Our group includes PostDocs, PhD students, and student assistants, and is headed by Prof. Felix Naumann. If you are interested in joining our team, please contact Felix Naumann.

For bachelor students we offer German lectures on database systems in addition to paper- or project-oriented seminars. Within a one-year bachelor project, students finalize their studies in cooperation with external partners. For master students we offer courses on information integration, data profiling, and information retrieval enhanced by specialized seminars, master projects and we advise master theses.

Most of our research is conducted in the context of larger research projects, in collaboration across students, across groups, and across universities. We strive to make available most of our datasets and source code.

Please do not hesitate to reach out directly to us, if you cannot find a paper, slides, or other research artifacts.

05.02.2018

Data Quality – The Role of Empiricism

Shazia Sadiq, Juliana Freire, Renée J. Miller, Tamraparni Dasu, Ihab F. Ilyas, Felix Naumann, Divesh Srivastava, Xin Luna Dong, Sebastian Link, Xiaofang Zhou

Our paper "Data Quality – The Role of Empiricism" has been accepted for publication at SIGMOD Record December 2017, Vol. 46, No. 4.

ABSTRACT

We outline a call to action for promoting empiricism indata quality research. The action points result from ananalysis of the landscape of data quality research. Thelandscape exhibits two dimensions of empiricism indata quality research relating to type of metrics andscope of method. Our study indicates the presence of adata continuum ranging from real to synthetic data,which has implications for how data quality methodsare evaluated. The dimensions of empiricism and theirinter-relationships provide a means of positioning dataquality research, and help expose limitations, gaps andopportunities.