Abstract. Data-driven approaches to scientific research have generated new types of repositories that provide scientists the means necessary to store, share and re-use big data-sets generated at various stages of the research process. As the number and heterogeneity of research data repositories increase, it becomes critical for scientists to solve data quality problems associated to the data-sets stored in these repositories. To date, several authors have been focused on the data quality issues associated to the data-sets stored in the repositories, yet there is little knowledge about the quality problems of the metadata used to describe these data-sets. Metadata is important for the long-term sustainability of research data repositories and data re-use. The aim of the research reported in this paper was to identify the data quality problems associated with the metadata used in the Dryad data repository. The paper concludes with some recommendations for improving the quality of metadata in research data repositories.

Δημοσιεύσεις Μελών—ΣΔΟ – Βιβλιοθηκονομίας και Συστημάτων Πληροφόρησης, 2013Social media have transformed the way modern science is communicated. Although several studies have been focused on the use of social media for the dissemination of scientific knowledge and the measurement of the impact of academic output, we know very little about how academics cite social media in their publications. In order to address this gap, a content analysis was performed on a sample of 629 journal articles in medical informatics. The findings showed the presence of 109 citations to social media resources, the majority of which were blogs and wikis. Social media citations were used more frequently to support the literature review section of articles. However, a fair amount of citations was used in order to document various aspects of the methodology section, such as the data collection and analysis process. The paper concludes with the implications of these findings for metadata design for bibliographic databases (like PubMed and Medline)

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