TY - JOUR T1 - The GeoLink Knowledge Graph JF - Big Earth Data Y1 - 2018 A1 - Michelle Cheatham A1 - Adila Krisnadhi A1 - Reihaneh Amini A1 - Pascal Hitzler A1 - Krzysztof Janowicz A1 - Adam Shepherd A1 - Tom Narock A1 - Matt Jones A1 - Peng Ji ER - TY - JOUR T1 - The GeoLink Knowledge Graph JF - Big Earth Data Y1 - 2018 A1 - Michelle Cheatham A1 - Adila Krisnadhi A1 - Reihaneh Amini A1 - Pascal Hitzler A1 - Krzysztof Janowicz A1 - Adam Shepherd A1 - Tom Narock A1 - Matt Jones A1 - Peng Ji ER - TY - CHAP T1 - Linked Ocean Data 2.0 T2 - Oceanographic and Marine Cross-Domain Data Management for Sustainable Development Y1 - 2016 A1 - Adam Leadbetter A1 - Michelle Cheatham A1 - Adam Shepherd A1 - Rob Thomas JF - Oceanographic and Marine Cross-Domain Data Management for Sustainable Development ER - TY - CONF T1 - EarthCube GeoLink: Semantics and Linked Data for the Geosciences T2 - 2015 American Geophysical Union Fall Meeting, San Francisco, 14-18 December 2015 Y1 - 2015 A1 - Robert A. Arko A1 - Suzanne Carbotte A1 - Cynthia Chandler A1 - Michelle Cheatham A1 - Douglas Fils A1 - Pascal Hitzler A1 - Krzysztof Janowicz A1 - Peng Ji A1 - Matthew Jones A1 - Adila Krisnadhi A1 - Kerstin Lehnert A1 - Audrey Mickle A1 - Tom Narock A1 - Margaret O'Brien A1 - Lisa Raymond A1 - Mark Schildhauer A1 - Adam Shepherd A1 - Peter Wiebe JF - 2015 American Geophysical Union Fall Meeting, San Francisco, 14-18 December 2015 ER - TY - Generic T1 - The GeoLink Framework for Pattern-based Linked Data Integration Y1 - 2015 A1 - Adila Krisnadhi A1 - Yingjie Hu A1 - Krzsyztof Janowicz A1 - Pascal Hitzler A1 - Robert Arko A1 - Suzanne Carbotte A1 - Cynthia Chandler A1 - Michelle Cheatham A1 - Douglas Fils A1 - Timothy Finin A1 - Peng Ji A1 - Matthew Jones A1 - Nazifa Karima A1 - Kerstin Lehnert A1 - Audrey Mickle A1 - Thomas Narock A1 - Margaret O'Brien A1 - Lisa Raymond A1 - Adam Shepherd A1 - Mark Schildhauer A1 - Peter Wiebe JF - Proceedings of the ISWC 2015 Posters & Demonstrations Track ER - TY - CONF T1 - The GeoLink Modular Oceanography Ontology T2 - The Semantic Web - ISWC 2015. 14th International Semantic Web Conference, Bethlehem, Pennsylvania, United States, October 11-15, 2015 Y1 - 2015 A1 - Adila Krisnadhi A1 - Yingjie Hu A1 - Krzysztof Janowicz A1 - Pascal Hitzler A1 - Robert Arko A1 - Suzanne Carbotte A1 - Cynthia Chandler A1 - Michelle Cheatham A1 - Douglas Fils A1 - Timothy Finin A1 - Peng Ji A1 - Matthew Jones A1 - Nazifa Karima A1 - Kerstin Lehnert A1 - Audrey Mickle A1 - Thomas Narock A1 - Margaret O'Brien A1 - Lisa Raymond A1 - Adam Shepherd A1 - Mark Schildhauer A1 - Peter Wiebe JF - The Semantic Web - ISWC 2015. 14th International Semantic Web Conference, Bethlehem, Pennsylvania, United States, October 11-15, 2015 PB - Springer ER - TY - CONF T1 - Linked Data: Forming Partnerships at the Data Layer T2 - 2015 American Geophysical Union Fall Meeting, San Francisco, 14-18 December 2015 Y1 - 2015 A1 - Adam Shepherd A1 - Cynthia Chandler A1 - Robert A. Arko A1 - Matthew Jones A1 - Pascal Hitzler A1 - Krzysztof Janowicz A1 - Adila Krisnadhi A1 - Mark Schildhauer A1 - Douglas Fils A1 - Tom Narock A1 - Robert Groman A1 - Margaret O'Brien A1 - Evan W. Patton A1 - Danie Kinkade A1 - Shannon Rauch JF - 2015 American Geophysical Union Fall Meeting, San Francisco, 14-18 December 2015 ER - TY - CONF T1 - Ontology Design Patterns: Bridging the Gap Between Local Semantic Use Cases and Large-Scale, Long-Term Data Integration T2 - European Geosciences Union General Assembly 2015, Vienna, Austria, 12 - 17 April 2015 Y1 - 2015 A1 - Adam Shepherd A1 - Robert Arko A1 - Adila Krisnadhi A1 - Pascal Hitzler A1 - Krzysztof Janowicz A1 - Cynthia Chandler A1 - Thomas Narock A1 - Michelle Cheatham A1 - Mark Schildhauer A1 - Matthew Jones A1 - Lisa Raymond A1 - Audrey Mickle A1 - Timothy Finin A1 - Douglas Fils JF - European Geosciences Union General Assembly 2015, Vienna, Austria, 12 - 17 April 2015 ER - TY - CHAP T1 - Ontology Pattern Modeling for Cross-Repository Data Integration in the Ocean Sciences: The Oceanographic Cruise Example T2 - The Semantic Web in Earth and Space Science: Current Status and Future Directions Y1 - 2015 A1 - Adila Krisnadhi A1 - Robert Arko A1 - Suzanne Carbotte A1 - Cynthia Chandler A1 - Michelle Cheatham A1 - Timothy Finin A1 - Pascal Hitzler A1 - Krzysztof Janowicz A1 - Thomas Narock A1 - Lisa Raymond A1 - Adam Shepherd A1 - Peter Wiebe AB - EarthCube is a major effort of the National Science Foundation to establish a next-generation knowledge architecture for the broader geosciences. Data storage, retrieval, access, and reuse are central parts of this new effort. Currently, EarthCube is organized around several building blocks and research coordination networks. OceanLink is a semantics-enabled building block that aims at improving data retrieval and reuse via ontologies, Semantic Web technologies, and Linked Data for the ocean sciences. Cruises, in the sense of research expeditions, are central events for ocean scientists. Consequently, information about these cruises and the involved vessels is of primary interest for oceanographers, and thus, needs to be shared and made retrievable. In this paper, we report the use of a design pattern-centric strategy to model Cruise for OceanLink data integration. We provide a formal axiomatization of the introduced pattern using the Web Ontology Language, explain design choices and discuss the planned deployment and application scenarios of our model. JF - The Semantic Web in Earth and Space Science: Current Status and Future Directions PB - IOS Press ER - TY - CONF T1 - R2R+BCO-DMO – Linked Oceanographic Datasets T2 - Proceedings of the 1st International Diversity++ Workshop co-located with the 14th International Semantic Web Conference (ISWC 2015), Bethlehem, Pennsylvania, USA, October 12, 2015 Y1 - 2015 A1 - Adila Krisnadhi A1 - Robert Arko A1 - Suzanne Carbotte A1 - Cynthia Chandler A1 - Michelle Cheatham A1 - Pascal Hitzler A1 - Yingjie Hu A1 - Krzysztof Janowicz A1 - Peng Ji A1 - Nazifa Karima A1 - Adam Shepherd A1 - Peter Wiebe ED - Claudia d'Amato ED - Freddy Lécué ED - Raghava Mutharaju ED - Thomas Narock ED - Fabian Wirth AB - The Biological and Chemical Oceanography Data Management Office (BCO-DMO) and the Rolling Deck to Repository (R2R) program are two key data repositories for oceanographic research, supported by the U.S. National Science Foundation (NSF). R2R curates digital data and documentation generated by environmental sensor systems installed on vessels from the U.S. academic research fleet, with support from the NSF Oceanographic Technical Services and Arctic Research Logistics Programs. BCO-DMO human-curates and maintains data and metadata including biological, chemical, and physical measurements and results from projects funded by the NSF Biological Oceanography, Chemical Oceanography, and Antarctic Organisms & Ecosystems Programs. These two repositories have a strong connection, and document several thousand U.S. oceanographic research expeditions since the 1970’s. Recently, R2R and BCO-DMO have made their metadata collections available as Linked Data, accessible via public SPARQL endpoints. In this paper, we report on these datasets. JF - Proceedings of the 1st International Diversity++ Workshop co-located with the 14th International Semantic Web Conference (ISWC 2015), Bethlehem, Pennsylvania, USA, October 12, 2015 PB - CEUR-WS.org VL - 1501 ER - TY - CONF T1 - Enhancing Ocean Research Data Access T2 - European Geosciences Union General Assembly 2014 Y1 - 2014 A1 - Cynthia Chandler A1 - Robert Groman A1 - Adam Shepherd A1 - Molly Allison A1 - Robert Arko A1 - Yu Chen A1 - Peter Fox A1 - David Glover A1 - Pascal Hitzler A1 - Adam Leadbetter A1 - Thomas Narock A1 - Patrick West A1 - Peter Wiebe JF - European Geosciences Union General Assembly 2014 CY - Vienna, Austria ER - TY - CONF T1 - The OceanLink Project T2 - American Geophysical Union Fall Meeting, San Francisco, 15-19 December 2014 Y1 - 2014 A1 - Thomas Narock A1 - Robert Arko A1 - Suzanne Carbotte A1 - Cynthia Chandler A1 - Michelle Cheatham A1 - Timothy Finin A1 - Pascal Hitzler A1 - Adila Krisnadhi A1 - Lisa Raymond A1 - Adam Shepherd A1 - Peter Wiebe JF - American Geophysical Union Fall Meeting, San Francisco, 15-19 December 2014 ER - TY - CONF T1 - The OceanLink project T2 - 2014 IEEE International Conference on Big Data, Big Data 2014, Washington, DC, USA, October 27-30, 2014 Y1 - 2014 A1 - Thomas Narock A1 - Robert Arko A1 - Suzanne Carbotte A1 - Adila Krisnadhi A1 - Pascal Hitzler A1 - Michelle Cheatham A1 - Adam Shepherd A1 - Cynthia Chandler A1 - Lisa Raymond A1 - Peter Wiebe A1 - Timothy Finin ED - Jimmy Lin ED - Jian Pei ED - Xiaohua Hu ED - Wo Chang ED - Raghunath Nambiar ED - Charu Aggarwal ED - Nick Cercone ED - Vasant Honavar ED - Jun Huan ED - Bamshad Mobasher ED - Saumyadipta Pyne AB - Today's scientific investigations are producing large numbers of scholarly products. These products continue to increase in diversity and complexity as researchers recognize that scholarly achievements are not only published articles but also datasets, software, and associated supporting materials. OceanLink is an online platform that addresses scholarly discovery and collaboration in the ocean sciences. The OceanLink project leverages Semantic Web technologies, web mining, and crowdsourcing to identify links between data centers, digital repositories, and professional societies to enhance discovery, enable collaboration, and begin to assess research contribution. JF - 2014 IEEE International Conference on Big Data, Big Data 2014, Washington, DC, USA, October 27-30, 2014 PB - {IEEE} SN - 978-1-4799-5665-4 UR - http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=6973861 ER - TY - CONF T1 - Ontology Design Patterns for Ocean Science Data Discovery T2 - Spatial reference in the Semantic Web and in Robotics (Dagstuhl Seminar 14142) Y1 - 2014 A1 - Pascal Hitzler A1 - Adila Krisnadhi A1 - Robert Arko A1 - Suzanne Carbotte A1 - Cynthia Chandler A1 - Michelle Cheatham A1 - Timothy Finin A1 - Krzysztof Janowicz A1 - Thomas Narock A1 - Lisa Raymond A1 - Adam Shepherd A1 - Peter Wiebe ED - Aldo Gangemi ED - Verena V. Hafner ED - Werner Kuhn ED - Simon Scheider ED - Luc Steels JF - Spatial reference in the Semantic Web and in Robotics (Dagstuhl Seminar 14142) VL - 3 IS - 4 ER - TY - RPRT T1 - An Ontology Pattern for Oceanograhic Cruises: Towards an Oceanographer's Dream of Integrated Knowledge Discovery Y1 - 2014 A1 - Adila Krisnadhi A1 - Robert Arko A1 - Suzanne Carbotte A1 - Cynthia Chandler A1 - Michelle Cheatham A1 - Timothy Finin A1 - Pascal Hitzler A1 - Krzysztof Janowicz A1 - Thomas Narock A1 - Lisa Raymond A1 - Adam Shepherd A1 - Peter Wiebe AB -

EarthCube is a major effort of the National Science Foundation to establish a next-generation knowledge architecture for the broader geosciences. Data storage, retrieval, access, and reuse are central parts of this new effort. Currently, EarthCube is organized around several building blocks and research coordination networks. OceanLink is a semanticsenabled building block that aims at improving data retrieval and reuse via ontologies, Semantic Web technologies, and Linked Data for the ocean sciences. Cruises, in the sense of research expeditions, are central events for ocean scientists. Consequently, information about these cruises and the involved vessels has to be shared and made retrievable. For example, the ability to find cruises in the vicinity of physiographic features of interest, e.g., a hydrothermal vent field or a fracture zone, is of primary interest for oceanographers. In this paper, we use a design pattern-centric strategy to engineer ontologies for OceanLink. We provide a formal axiomatization of the introduced patterns and ontologies using the Web Ontology Language, explain design choices, discuss the re-usability of our models, and provide lessons learned for the future geo-ontologies.

JF - OceanLink Technical Report ER - TY - CONF T1 - Provenance Usage in the OceanLink Project T2 - American Geophysical Union Fall Meeting, San Francisco, 15-19 December 2014. Y1 - 2014 A1 - Thomas Narock A1 - Robert Arko A1 - Suzanne Carbotte A1 - Cynthia Chandler A1 - Michelle Cheatham A1 - Douglas Fils A1 - Timothy Finin A1 - Pascal Hitzler A1 - Krzysztof Janowicz A1 - Matthew Jones A1 - Adila Krisnadhi A1 - Kerstin Lehnert A1 - Audrey Mickle A1 - Lisa Raymond A1 - Mark Schildhauer A1 - Adam Shepherd A1 - Peter Wiebe JF - American Geophysical Union Fall Meeting, San Francisco, 15-19 December 2014. ER - TY - CONF T1 - Semantic Entity Pairing for Improved Data Validation and Discovery T2 - European Geosciences Union General Assembly 2014, Vienna, Austria, 27 April - 02 May 2014 Y1 - 2014 A1 - Adam Shepherd A1 - Cynthia Chandler A1 - Robert Arko A1 - Yanning Chen A1 - Adila Krisnadhi A1 - Pascal Hitzler A1 - Thomas Narock A1 - Robert Groman A1 - Shannon Rauch AB -

One of the central incentives for linked data implementations is the opportunity to leverage the rich logic inherent in structured data. The logic embedded in semantic models can strengthen capabilities for data discovery and data validation when pairing entities from distinct, contextually-related datasets. The creation of links between the two datasets broadens data discovery by using the semantic logic to help machines compare similar entities and properties that exist on different levels of granularity. This semantic capability enables appropriate entity pairing without making inaccurate assertions as to the nature of the relationship. Entity pairing also provides a context to accurately validate the correctness of an entity's property values - an exercise highly valued by data management practices who seek to ensure the quality and correctness of their data. The Biological and Chemical Oceanography Data Management Office (BCO-DMO) semantically models metadata surrounding oceanographic researchcruises, but other sources outside of BCO-DMO exist that also model metadata about these same cruises. For BCO-DMO, the process of successfully pairing its entities to these sources begins by selecting sources that are decidedly trustworthy and authoritative for the modeled concepts. In this case, the Rolling Deck to Repository (R2R) program has a well-respected reputation among the oceanographic research community, presents a data context that is uniquely different and valuable, and semantically models its cruise metadata. Where BCO-DMO exposes the processed, analyzed data products generated by researchers, R2R exposes the raw shipboard data that was collected on the same research cruises. Interlinking these cruise entities expands data discovery capabilities but also allows for validating the contextual correctness of both BCO-DMO's and R2R's cruise metadata. Assessing the potential for a link between two datasets for a similar entity consists of aligning like properties and deciding on the appropriate semantic markup to describe the link. This highlights the desire for research organizations like BCO-DMO and R2R to ensure the complete accuracy of their exposed metadata, as it directly reflects on their reputations as successful and trustworthy source of research data. Therefore, data validation reaches beyond simple syntax of property values into contextual correctness. As a human process, this is a time-intensive task that does not scale well for finite human and funding resources. Therefore, to assess contextual correctness across datasets at different levels of granularity, BCO-DMO is developing a system that employs semantic technologies to aid the human process by organizing potential links and calculating a confidence coefficient as to the correctness of the potential pairing based on the distance between certain entity property values. The system allows humans to quickly scan potential links and their confidence coefficients for asserting persistence and correcting and investigating misaligned entity property values.

JF - European Geosciences Union General Assembly 2014, Vienna, Austria, 27 April - 02 May 2014 VL - 16 ER - TY - CONF T1 - Using Linked Open Data and Semantic Integration to Search Across Geoscience Repositories. T2 - American Geophysical Union Fall Meeting, San Francisco, 15-19 December 2014 Y1 - 2014 A1 - Lisa Raymond A1 - Adam Shepherd A1 - Robert Arko A1 - Suzanne Carbotte A1 - Cynthia Chandler A1 - Michelle Cheatham A1 - Douglas Fils A1 - Pascal Hitzler A1 - Krzysztof Janowicz A1 - Matthew Jones A1 - Adila Krisnadhi A1 - Kerstin Lehnert A1 - Audrey Mickle A1 - Thomas Narock A1 - Mark Schildhauer A1 - Peter Wiebe JF - American Geophysical Union Fall Meeting, San Francisco, 15-19 December 2014 ER -