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</o:shapelayout></xml><![endif]--></head><body lang=EL link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span lang=EN-US>**apologies for cross-postings**<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal align=center style='text-align:center'><span lang=EN-US>================================================================================<o:p></o:p></span></p><p class=MsoNormal align=center style='text-align:center'><span lang=EN-US>Final Call for papers<o:p></o:p></span></p><p class=MsoNormal align=center style='text-align:center'><span lang=EN-US>Data Journal Special Issue on<o:p></o:p></span></p><p class=MsoNormal align=center style='text-align:center'><span lang=EN-US>"Semantics in the Deep: Semantic Analytics for Big Data"<o:p></o:p></span></p><p class=MsoNormal align=center style='text-align:center'><a href="http://www.mdpi.com/journal/data/special_issues/Semantic_Analytics"><span lang=EN-US style='color:#0563C1'>http://www.mdpi.com/journal/data/special_issues/Semantic_Analytics</span></a><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal align=center style='text-align:center'><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal align=center style='text-align:center'><b><span lang=EN-US>**NEW EXTENDED DEADLINE: November 23<sup>th</sup> , 2018**<o:p></o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal align=center style='text-align:center'><span lang=EN-US>* no article processing charges *<o:p></o:p></span></p><p class=MsoNormal align=center style='text-align:center'><span lang=EN-US>================================================================================<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Description<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>===========<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>The wide availability of information on the Internet, storage space, and web-generated content put still more impetus on devising applications that would take advantage of such unprecedented resources, but would also stand up to the challenges posed by processing and value extraction out of big data. Now that big data have become everyday data, two fundamental questions naturally arise:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>- How can semantic technologies contribute towards big data analysis?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>- What is the relationship between Semantic Web logical formalisms and automated- and deep-learning techniques?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>The aim of this Special Issue is to put emphasis on big data analysis and, more specifically, on how semantics-aware applications can contribute in this field. The interplay between the logical formalisms of the Semantic Web and automated learning and deep learning techniques is currently an open research topic for both technologies to achieve their next step and forms the state-of-the-art in this area. In this sense, there are numerous open problems, ranging from efficient ontological processing of big data ontologies to knowledge graphs maintenance to ontology evolvement with machine learning techniques.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Topics<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>======<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Following the theme of <a href="https://sedseal2018.ceid.upatras.gr/"><span style='color:#0563C1'>SEDSEAL 2018</span></a>, this special issue solicits contributions to the open problems above, such as innovative techniques, tools, case studies, comparisons, and theoretical advances. The papers should consider and present contributions towards how Semantic Web technologies can help to implement and enhance big data analytics. This can be achieved either by extracting value out of these data (e.g., through reasoning), creating sustainable ontology models, offering a solid foundation for deploying learning techniques or anything in between. In particular, topics of interest include, but are not limited to, the following:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Ontologies for big data<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Semantic applications in big data domains including:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>open datasets, linked data, scholarly information, e-learning<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>economics, insurance, sensors, bioinformatics<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Reasoning approaches for knowledge extraction<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Ontology learning and topic modeling<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>NLP and word embedding<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Semantic deep learning<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Semantic lakes and blockchain<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>OBDA approaches for big data access<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Data Science and semantics<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Evaluation techniques<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Semantic deep learning<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Ontologies as training sets<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Ontology evolution and learning feedback<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Scalability issues<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Submission<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>==========<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Manuscripts should be submitted online at <a href="http://www.mdpi.com"><span style='color:#0563C1'>www.mdpi.com</span></a>. Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Authors are encouraged to send a short abstract and tentative title to guest editor Dr. Dimitrios Koutsomitropoulos at the email address found here: <a href="http://www.mdpi.com/journal/data/special_issues/Semantic_Analytics"><span style='color:#0563C1'>http://www.mdpi.com/journal/data/special_issues/Semantic_Analytics</span></a> <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Guidelines for authors are available at this page: <a href="http://www.mdpi.com/journal/data/instructions"><span style='color:#0563C1'>http://www.mdpi.com/journal/data/instructions</span></a> <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>The Article Processing Charge (APC) is waived for well-prepared manuscripts submitted to this issue. Submitted papers should be well formatted and use good English. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Guest Editors<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>=============<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Dr. Dimitrios A. Koutsomitropoulos<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Department of Computer Engineering & Informatics, University of Patras, Greece<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Prof. Dr. Spiridon D. Likothanassis<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Department of Computer Engineering & Informatics, University of Patras, Greece<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Prof. Dr. Panos Kalnis<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Computer, Electrical and Mathematical Science and Engineering Division, King Abdullah University of Science and Technology, Saudi Arabia<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Important Dates<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>===============<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><s><span lang=EN-US>2/11/2018</span></s><b><span lang=EN-US> 23/11/2018: Manuscript submission deadline<o:p></o:p></span></b></p><p class=MsoNormal><span lang=EN-US>28/1/2019: Author Notification<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>28/2/2019: Final Revisions<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Spring-Summer 2019: Special Issue Publication<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Editorial Review Board <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>======================<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Andreas Andreou, Cyprus University of Technology, Cyprus<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Christos Alexakos, University of Patras, Greece<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Dimitrios Tsolis, University of Patras, Greece<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Dimitrios Tzovaras, CERTH/ITI, Greece<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Efstratios Georgopoulos, Technological Institute of Kalamata, Greece<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Filipe Portela, University of Minho, Portugal<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Jouni Tuominen, University of Helsinki, Finland<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Konstantinos Votis, CERTH/ITI, Greece<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Miguel-Angel Sicilia, University of Alcala, Spain<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Minjuan Wang, San Diego State University, US<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Vassilis Plagianakos, University of Thessaly, Greece<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div></body></html>