What

MarineTLO is a top-level ontology for the marine domain (also applicable to the terrestrial domain).
A two-page flyer describing MarineTLO can be found here.

Why top

To tackle the need for having integrated sets of facts about marine species, and thus to assist research about species and biodiversity.

It provides a unified and coherent core model for schema mapping which enables formulating and answering queries which cannot be answered by any individual source.

MarineTLO is the backbone of the MarineTLO-based Warehouse.

Who top

The Information Systems Laboratory (ISL) of FORTH-ICS in the context of the iMarine project using feedback from the partners in iMarine.

How to cite us top

Cite the MTSR'13 paper (pdf slides bib)

Release top

Current Applications top
MarineTLO-based Warehouse
It is a warehouse which integrates information coming from FishBase, WoRMS, ECOSCOPE, FLOD and DBpedia. It currently contains information (≈ 5.5M triples) about marine species (≈ 54,000), ecosystems, water areas, vessels, etc. The warehouse is already in use by various services offered by iMarine and it keeps evolving. A list of rules for creating sameAs links using the SILK framework can be found here. A figure illustrating the results of the connectivity metrics for the warehouse can be found here. A 3D Visualization of the connectivity metrics of the warehouse can be found here.
SPARQL endpoint  •  browsing interface (restricted access, instructions for accessing the warehouse)
Fact Sheet Generator
In this case, MarineTLO is used as top model for FishBase, WoRMS, ECOSCOPE, FLOD and DBpedia to support the development of FactSheetsGenerator applications. An concrete example is the one provided by IRD (SpeciesFactSheetsGenerator) aiming at providing factual knowledge about the marine domain by mashing-up relevant knowledge distributed across several data sources.
Semantic Post-Processing of the results of keyword search queries
X-Search is a meta-search system that performs (at real-time) entity mining and textual clustering over the top results and also exploits the availability of semantic repositories for enriching the identified entities. In this case, MarineTLO is used as the underlying Knowledge Base for retrieving more information about a fish species, water area, country or regional fisheries body. Specifically, the MarineTLO-based warehouse is queried at real-time, combining and presenting thereby information coming from different sources.
How to exploit it top
scenarios
  • For publishing Linked Data related to the marine/terrestrial domain
  • For mashing up facts
  • For building warehouses
  • For enriching (marine related) web pages with RDFa
examples
how to use a MarineTLO-based warehouse
  • A document describing how to access a MarineTLO-based warehouse can be found here
  • Some examples demonstrating the query rewriting approach can be found here
  • A tool for the query rewriting approach can be found here
Documents & Publications top
documents
publications
Y. Tzitzikas, C. Alloca, C. Bekiari, Y. Marketakis, P. Fafalios, M. Doerr, N. Minadakis, T. Patkos and L. Candela
Unifying heterogeneous and distributed information about marine species through the top level ontology MarineTLO,
Program: Electronic library and Information Systems, Special Issue on Application of Metadata and Semantics in Science, Vol. 50, No. 01 (2016), Emerald (ISSN: 0033-0337).
Y. Tzitzikas, C. Alloca, C. Bekiari, Y. Marketakis, P. Fafalios, M. Doerr, N. Minadakis, T. Patkos and L. Candela
Integrating Heterogeneous and Distributed Information about Marine Species through a Top Level Ontology,
Proceedings of the 7th Metadata and Semantic Research Conference, MTSR'13, Thessaloniki, Greece, November 2013.
pdf slides bib
Y. Tzitzikas, C. Allocca, C. Bekiari, Y. Marketakis, P. Fafalios and N. Minadakis
Ontology-based Integration of Heterogeneous and Distributed Information of the Marine Domain,
ERCIM News 2014 (96), Special theme: Linked Open Data, January 2014
Y. Tzitzikas, N. Minadakis, Y. Marketakis, P. Fafalios, C. Alloca and N. Mountantonakis
Quantifying the Connectivity of a Semantic Warehouse,
M. Mountantonakis, C. Allocca, P. Fafalios, N. Minadakis, Y. Marketakis, C. Lantzaki and Y. Tzitzikas
Extending VoID for Expressing the Connectivity Metrics of a Semantic Warehouse,
Y. Tzitzikas, N. Minadakis, Y. Marketakis, P. Fafalios, C. Alloca, N. Mountantonakis and I. Zidianaki
MatWare: Constructing and Exploiting Domain Specific Warehouses by Aggregating Semantic Data,
11th Extended Semantic Web Conference (ESWC'14), Anissaras Hersonissou, Crete, Greece, May 2014.
Provide Feedback / Contact top
Please provide your feedback and any comments by sending an email at marinetlo@ics.forth.gr. We are interested in both coarse-grained feedback, as well as fine-grained, e.g. comments and suggestions about the particular elements (concepts, associations, scope notes) of the ontology.
About top

Institution:
Information System Laboratory (ISL), Institute of Computer Science (ICS),
Foundation for Research and Technology - Hellas (FORTH)

Related Project:
iMarine (Data e-Infrastructure Initiative for Fisheries Management and Conservation of Marine Living Resources) is a European Commission funded project that kicked-off on 1st Nov 2011. It is an open and collaborative initiative that will establish a data infrastructure to support the Ecosystem Approach to fisheries management and conservation of marine living resources. For more information visit: http://www.i-marine.eu/.

Contact Persons:
Yannis Tzitzikas
Email: tzitzik@ics.forth.gr
Personal Web page: http://users.ics.forth.gr/~tzitzik/
Tel: +30 2810 391 621
Postal Address: Institute of Computer Science (ICS), Foundation for Research and Technology - Hellas (FORTH), Science and Technology Park of Crete, Vassilika Vouton, P.O.Box 1385, Heraklion, Crete, GR 7110, GREECE


Chrysoula Bekiari
Email: bekiari@ics.forth.gr
Personal Web page: http://www.ics.forth.gr/isl/index_main.php?l=e&c=231
Tel: +30 2810 391 631
Postal Address: Institute of Computer Science (ICS), Foundation for Research and Technology - Hellas (FORTH), Science and Technology Park of Crete, Vassilika Vouton, Heraklion, Crete, GR-70013, GREECE

Institute of Computer Science - Foundation for Research and Technology - Hellas
 
 
 
This work was partially supported by:
iMarine: Data e-Infrastructure Initiative for Fisheries Management and Conservation of Marine Living Resources
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