Ontology Summit 2016: SI Track: SI in the GeoScience Session 1: How is SI Viewed in the GeoSciences"

Transcription

1 Ontology Summit 2016: SI Track: SI in the GeoScience Session 1: How is SI Viewed in the GeoSciences" February 25, 2016 Some Introductory Comments on the Track Topic Gary Berg-Cross Ontolog, RDA US Advisory Committee, EarthCube Technical Advisory Committee

2 Outline of this Intro 1. Topic relevance SI has a long history in the GeoSciences 2. Points from our Panel, EarthCube & INSPIRE Thrust 1. Conceptual models, languages, legacies, raw data & heterogeneity, constrained interpretations, repositories, brokers, context etc. 3. Some Solution Ingredients in the era of Big Science and Data 4. Recap 5. Some References and Links 2

3 History Many efforts going back to the 80s (commercial GIS) & 90s Complex Earth system issues such as climate change and water resources, mean that geoscientists must work across disciplinary boundaries; and access and understand data & systems outside of their fields. Examples: Goodchild, Michael F., Max J. Egenhofer, and Robin Fegeas. "Interoperating GISs." Report of a Specialist Meeting Held Under the Auspices of the Varenius Project Panel on Computational Implementations of Geographic Concepts the language of latitude and longitude is universal, but the general language for describing all phenomena distributed over the surface of the Earth is not, and has not yet been fully defined. Ouksel, Aris M., and Amit Sheth. "Semantic interoperability in global information systems." ACM Sigmod Record 28.1 (1999): Raskin, Rob, Michael Pan, and Chris Mattmann. "Enabling semantic interoperability for earth science data." 4th NASA Earth Science Technology Conference Ontology Summit 2016 SI in the GeoScience 3

4 In EarthCube & INSPIRE some of the Challenges are Recognized Complex, Heterogeneous & Federated Environments

5 NSF 2015 Workshop on Intelligent and Information Systems for Geosciences

6

7 Panel Frame: Infrastructure for Spatial Information in the European Community (INSPIRE) Sowa. Janowicz, Patil And Polzer Point Patil Context Polzer Point CL & IKL Janowicz constrain Interpretations Agent Brokering employs central mechanisms to help resolve such things as disparate vocabularies, support data distribution requests, enforce translatable standards and to enable uniformity of search and access in heterogeneous operating environments.

8 Some GeoScience Ontology Snapshots- Atmosphere & Geo Connections Gas flux? snapshots Soil?

9 mine cinergigeoentity bank Some Ontologies are Lists of Features Community Inventory of EarthCube Resources for Geosciences Interoperability (CINERGI)

10 Physical Qualities

11 Graphic Overview of S/O (EarthCube) Manifesto Vertical Integration Horizontal Integration Architecture & Workflow Between Guiding principles 1. Uses Cases 2. Lightweight -opportunistic (ODPs) Reduce Entry Barrier 1. Semantic interoperability with semantic heterogeneity 4. Bottom-up & top-down approaches 5. Domain - ontology engineer teams 6. Formalized bodies of knowledge across Earth science domains 7. Reasoning services Insertion Knowledge Infrastructure Vision Community Understanding of Semantic role and value Ontology Summit 2016: GeoScience Track 11

12 Recap & Some Thought to be Considered in the Track There is a long history of interest and increasing work we can leverage. Big Science & Big Data provide motivating challenges Semantic Web/LOD work is a driver and some useful things have been built But there seem practical & foundational challenges to make semantic approaches successful. Many ontologies but may be too shallow and not well related How many decisions need be made to handle varied contexts over time? Opportunities exist in the various Earth Sciences with large Projects like EarthCube. We should keep in mind the challenges of communicating across the Big Data, Semantic Web and Applied Ontology disciplines and projects. 12

13 Some References & Links 1. Goodchild, Michael F., Max J. Egenhofer, and Robin Fegeas. "Interoperating GISs." Report of a Specialist Meeting Held Under the Auspices of the Varenius Project Panel on Computational Implementations of Geographic Concepts Ouksel, Aris M., & Amit Sheth. "Semantic interoperability in global information systems." ACM Sigmod Rec 28.1 (1999): Raskin, Rob, Michael Pan, and Chris Mattmann. "Enabling semantic interoperability for earth science data." 4th NASA Earth Science Technology Conference Hitzler, P., Janowicz, K., Berg-Cross, G., Obrst, L., Sheth, A., Finin, T., Cruz, I.: Semantic Aspects of EarthCube. Technical report, Semantics and Ontology Technical Committee. (2012) V1.0.pdf 5. Janowicz, K., Hitzler, P.: The Digital Earth as knowledge engine. Semantic Web Journal 3(3) (2012) EarthCube Semantic Manifesto Gary Berg-Cross, Isabel Cruz, Mike Dean, Tim Finin, Mark Gahegan, Pascal Hitzler, Hook Hua, Krzysztof Janowicz, Naicong Li, Philip Murphy, Bryce Nordgren, Leo Obrst, Mark Schildhauer, Amit Sheth, Krishna Sinha, Anne Thessen, Nancy Wiegand, and Ilya Zaslavsky 7. CUAHSI 8. The Semantic Sensor Network Ontology 9. Janowicz, K., Hitzler, P.: The Digital Earth as knowledge engine. Semantic Web Journal 3(3) (2012) EarthCube and the community page at Earth-Science-Ontolog Mini-Series S. Duce & K. Janowicz Microtheories for Spatial Data Infrastructures Ontology Summit 2016 Track A - GeoSciences 13

14 Supplementary

15 Community Priorities & Talking a Different Language Geo Feature LOD is too complex/not rich enough. Sharing & Interoperability Knowledge Infrastructure & Ontology applications: Smart Search, discovery & annotation Semantic services Knowledge Infrastructure Patil & Polzer point 5

16 Big data era means that diverse and voluminous data types are increasing & need to be described with semantics. For example, most of the database research self-assessment reports recognize that the thorny question of semantic heterogeneity, that is of handling variations in meaning or ambiguity in entity interpretation, remains open. Agrawal, et al, The Claremont report on database research, SIGMOD Record, vol. 37, no. 3, pp. 9 19, 2008 Exploit semantics of ontological relationships Use Heuristics and Machinelearning Richer languages Modular Reuse General Integration Approaches on Different Architectural Levels Ziegler, Patrick, & Klaus R. Dittrich. "Data integration problems, approaches, and perspectives." Conceptual Modelling in Information Systems Engineering. Springer, KE Tools

17 Portion on SOCoP Ontologies in OntoHub