In addition to tools offering RDF views over databases, a variety of tools exist that allow exporting database contents into RDF graphs; tools proven that in many cases demonstrate better performance than the former. However, in cases when database contents are exported into RDF, it is not always optimal or even necessary to dump the whole database contents every time. In this paper, the problem of incremental generation and storage of the resulting RDF graph is investigated. An implementation of the R2RML standard is used in order to express mappings that associate tuples from the source database to triples in the resulting RDF graph. Next, a methodology is proposed that enables incremental generation and storage of an RDF graph based on a source relational database, and it is evaluated through a set of performance measurements. Finally, a discussion is presented regarding the authors' most important findings and conclusions.

If you would like to write for this, or any other Emerald publication, then please use our Emerald for Authors service information about how to choose which publication to write for and submission guidelines are available for all. Please visit www.emeraldinsight.com/authors for more information. About Emerald www.emeraldinsight.comEmerald is a global publisher linking research and practice to the benefit of society. The company manages a portfolio of more than 290 journals and over 2,350 books and book series volumes, as well as providing an extensive range of online products and additional customer resources and services.Emerald is both COUNTER 4 and TRANSFER compliant. The organization is a partner of the Committee on Publication Ethics (COPE) and also works with Portico and the LOCKSS initiative for digital archive preservation. AbstractPurpose -The purpose of this paper is to study advantages and challenges of electronic academic textbook (e-textbook) for the Hellenic higher education and the publishing community. In the higher education domain, the shift to e-textbook adoption entails numerous benefits. However, reluctance is noted in students as well as in publishers, impeding the faster realisation of this change. Decision-makers (such as the Ministry of Education and university administrations) need actual survey data to plan and perform the best strategy plan for the transition to the e-textbook era. Design/methodology/approach -Two different surveys took place among higher education students and academic textbook publishers in Greece. More specifically, the purpose of these surveys was twofold: first, to identify both students' and local publishers' views towards the e-textbooks as the near-future successor of printed books. Second, the results of the in-depth study will enable the proposal of certain solutions for the Hellenic higher education textbook system, which has reached an economic and functional deadlock. Our findings will also be easily adopted by other similar educational system across Europe. Findings -Our findings reflect a situation where e-textbooks will replace the printed books, but not in the near future, as both technology providers and publishers have to overcome many technical obstacles. Students are expecting the transition to occur soon, but still remain very reluctant about the inconvenience which might be caused to their reading habits. Originality/value -The results are unique and in alignment with similar surveys in other educational systems.

Recently significant initiatives have been launched for the dissemination of Open Access as part of the Open Science movement. Nevertheless, two other major pillars of Open Science such as Open Research Data (ORD) and Open Peer Review (OPR) are still in an early stage of development among the communities of researchers and stakeholders. The present study sought to unveil the perceptions of a medical and health sciences community about these issues. Through the investigation of researchers` attitudes, valuable conclusions can be drawn, especially in the field of medicine and health sciences, where an explosive growth of scientific publishing exists. A quantitative survey was conducted based on a structured questionnaire, with 179 valid responses. The participants in the survey agreed with the Open Peer Review principles. However, they ignored basic terms like FAIR (Findable, Accessible, Interoperable, and Reusable) and appeared incentivized to permit the exploitation of their data. Regarding Open Peer Review (OPR), participants expressed their agreement, implying their support for a trustworthy evaluation system. Conclusively, researchers need to receive proper training for both Open Research Data principles and Open Peer Review processes which combined with a reformed evaluation system will enable them to take full advantage of the opportunities that arise from the new scholarly publishing and communication landscape.

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Purpose-This paper seeks to encourage reflections on the extent to which a one-shot workshop can help about-to-be information Professionals understand and appreciate the gamut of complexities and challenges associated with library position in the emerging Learning Analytics (LA) ecosystem.

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