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13.06.2019 | Schwerpunktbeitrag | Ausgabe 2/2019 Open Access

Datenbank-Spektrum 2/2019

A Link is not Enough – Reproducibility of Data

Datenbank-Spektrum > Ausgabe 2/2019
Mateusz Pawlik, Thomas Hütter, Daniel Kocher, Willi Mann, Nikolaus Augsten
Wichtige Hinweise
This work was supported by Austrian Science Fund (FWF): P 29859.


Although many works in the database community use open data in their experimental evaluation, repeating the empirical results of previous works remains a challenge. This holds true even if the source code or binaries of the tested algorithms are available. In this paper, we argue that providing access to the raw, original datasets is not enough. Real-world datasets are rarely processed without modification. Instead, the data is adapted to the needs of the experimental evaluation in the data preparation process. We showcase that the details of the data preparation process matter and subtle differences during data conversion can have a large impact on the outcome of runtime results. We introduce a data reproducibility model, identify three levels of data reproducibility, report about our own experience, and exemplify our best practices.

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Datenbank-Spektrum ist das offizielle Organ der Fachgruppe Datenbanken und Information Retrieval der Gesellschaft für Informatik (GI) e.V. Die Zeitschrift widmet sich den Themen Datenbanken, Datenbankanwendungen und Information Retrieval.

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