41 Hits in 3.0 sec

Spatial Discovery of Linked Research Datasets and Documents at a Spatially Enabled Research Library

Sara Lafia, Werner Kuhn
2018 Journal of Map & Geography Libraries  
The system described in this work has been deployed, resulting in an experimental open data site for the UCSB campus.  ...  This is because datasets are not well-integrated across academic domains and they are often not linked to the documents that reference them.  ...  GeoLink also provides a scientific knowledge base for describing research data, which was absent in the previous data model.  ... 
doi:10.1080/15420353.2018.1478923 fatcat:muc4666rlrhptklw4c5pd6oxzy

Artificial intelligence for ocean science data integration: current state, gaps, and way forward

Tomer Sagi, Yoav Lehahn, Koby Bar
2020 Elementa: Science of the Anthropocene  
The middle layer shows how data integration technologies support the process. OBDA and OBD stand for ontology-based data access (A) and integration (I) respectively.  ...  AI in data integration Ontology-based data integration and access Taking advantage of the AI knowledge representation and inference mechanisms, ontology-based data integration (OBDI) uses ontologies  ...  The deconstruction of a DI process in ocean science as portrayed in Figure 4 was performed jointly by T.S. and Y.L.  ... 
doi:10.1525/elementa.418 fatcat:sglafbad2fhcteq7hsyalgwzo4

Building Geoscience Semantic Web Applications Using Established Ontologies

Matthew S. Mayernik, M. Benjamin Gross, Jon Corson-Rikert, Michael D. Daniels, Erica M. Johns, Huda Khan, Keith Maull, Linda R. Rowan, Don Stott
2016 Data Science Journal  
The EarthCollab project is bringing together the VIVO-Integrated Semantic Framework (VIVO-ISF) ontology, the Global Change Information System (GCIS) ontology, and the Data Catalog (DCAT) ontology, among  ...  Understanding the challenges and solutions for ontology reuse are critical to informing key decision points for new semantic web applications in deciding when to reuse existing ontologies and when to develop  ...  Acknowledgements EarthCollab is funded by the US National Science Foundation, grants # 1440293, 1440213, 1440181, PIs Matthew Mayernik, Mike Daniels, Linda Rowan, and Dean Krafft.  ... 
doi:10.5334/dsj-2016-011 fatcat:zrlluteie5hzpnlva5n6juewam

A Review of Geospatial Semantic Information Modeling and Elicitation Approaches

Margarita Kokla, Eric Guilbert
2020 ISPRS International Journal of Geo-Information  
It discusses the problems and the challenges faced, highlights the types of semantic information formalized and extracted, as well as the methodologies and tools used, and identifies directions for future  ...  The second topic involves a set of processes that aim to draw out latent knowledge from unstructured or semi-structured content: semantic-based extraction, enrichment, search, and analysis.  ...  Conflicts of Interest: The authors declare no conflicts of interest.  ... 
doi:10.3390/ijgi9030146 fatcat:e46jighegjhbzfy55u2alfb6um

A Pattern Driven Approach to Knowledge Representation in the Disaster Domain

Allan Mazimwe, Imed Hammouda, Anthony Gidudu, Bernard Barasa
2020 SN Computer Science  
This provides a powerful use case for adopting a pattern-based approach to knowledge representation in the disaster domain.  ...  To bridge the availability gap of patterns for representing disaster knowledge, this study identifies existing and emerging patterns for reuse while organizing disaster data from multiple sector stakeholders  ...  Thus future work will explore trade-offs for pattern-based footprints and Shapes against linked data validation, access and reuse.  ... 
doi:10.1007/s42979-020-00342-5 fatcat:jjitf2shvbbzrergysqaxacpni

Geospatial Semantics [chapter]

Yingjie Hu
2018 Comprehensive Geographic Information Systems  
Meanwhile, the arrival of big geo data, especially the large amount of unstructured text data on the Web, and the fast development of natural language processing methods enable new research directions  ...  Geospatial semantics can also facilitate the design of geographic information systems (GIS) by enhancing the interoperability of distributed systems and developing more intelligent interfaces for user  ...  Since the data to be published can come from a variety of domains with diverse attributes, Resource Description Framework (RDF) has been employed for organizing and publishing Linked Data.  ... 
doi:10.1016/b978-0-12-409548-9.09597-x fatcat:ovqv7j73tjanfaoek3bmyptfy4

A Smart Web-Based Geospatial Data Discovery System with Oceanographic Data as an Example

Yongyao Jiang, Yun Li, Chaowei Yang, Fei Hu, Edward Armstrong, Thomas Huang, David Moroni, Lewis McGibbney, Frank Greguska, Christopher Finch
2018 ISPRS International Journal of Geo-Information  
Discovering and accessing geospatial data presents a significant challenge for the Earth sciences community as massive amounts of data are being produced on a daily basis.  ...  attributes and user behavior; (4) an integrated graphic user interface design is developed to quickly and intuitively guide data consumers to the appropriate data resources.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/ijgi7020062 fatcat:kaexmw2oqrf5pfezshkyxtc5au

An event abstraction layer for the integration of geosensor data

Alejandro Llaves, Werner Kuhn
2014 International Journal of Geographical Information Science  
For the analysis of geosensor data, we use event processing to detect event patterns in time series of observations.  ...  when they appear. 37 Tim Berners-Lee defined the Linked Data Principles at  ...  We are thankful for discussions with members of the Muenster Semantic Interoperability Lab (MUSIL) and the International Research Training Group on Semantic Integration of Geospatial Information (IRTG-SIGI  ... 
doi:10.1080/13658816.2014.882513 fatcat:exqk6rfmmvbtxjfjrjdmghwcni

Assessment and Benchmarking of Spatially Enabled RDF Stores for the Next Generation of Spatial Data Infrastructure

Weiming Huang, Syed Amir Raza, Oleg Mirzov, Lars Harrie
2019 ISPRS International Journal of Geo-Information  
In this study, we investigate the technical environment of the support for geospatial linked data by assessing and benchmarking some popular and well-known spatially enabled RDF stores (RDF4J, GeoSPARQL-Jena  ...  The tests were performed in two different scenarios. In the first scenario, geospatial data forms a part of a large-scale data infrastructure and is integrated with other types of data.  ...  Funding: The work was supported by Lund University and China Scholarship Council. Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/ijgi8070310 fatcat:dczpbeeyhndbboxr2lxuhojj6m

Narrative Cartography with Knowledge Graphs [article]

Gengchen Mai, Weiming Huang, Ling Cai, Rui Zhu, Ni Lao
2022 arXiv   pre-print
Firstly, to tackle the data acquisition & integration challenge, we develop a set of KG-based GeoEnrichment toolboxes to allow users to search and retrieve relevant data from integrated cross-domain knowledge  ...  With the help of this tool, the retrieved data from KGs are directly materialized in a GIS format which is ready for spatial analysis and mapping.  ...  Acknowledgements We would like to acknowledge the guidance and suggestion of Prof. Krzysztof Janowicz, and Prof. Pascal Hitzler on the ontology design pattern development.  ... 
arXiv:2112.00970v2 fatcat:ughayk4gzrbtda4hbgwbkz4k6q

MODL: A Modular Ontology Design Library [article]

Cogan Shimizu and Quinn Hirt and Pascal Hitzler
2019 arXiv   pre-print
Pattern-based, modular ontologies have several beneficial properties that lend themselves to FAIR data practices, especially as it pertains to Interoperability and Reusability.  ...  However, developing such ontologies has a high upfront cost, e.g. reusing a pattern is predicated upon being aware of its existence in the first place.  ...  for pattern-based ontologies [8] .  ... 
arXiv:1904.05405v1 fatcat:stauk7nnzbfgvptfiw6a77zn3y

RDF-F: RDF Datatype inFerring Framework

Irvin Dongo, Yudith Cardinale, Richard Chbeir
2018 Data Science and Engineering  
analysis (i.e., deduce the datatype from existing range property), (ii) an analysis of the object value itself by a pattern-matching process (i.e., recognize the object lexical space), (iii) a semantic  ...  In the context of RDF document matching/integration, the datatype information, which is related to literal objects, is an important aspect to be analyzed in order to better determine similar RDF documents  ...  for building Semantic Web and Linked Data applications -  ... 
doi:10.1007/s41019-018-0064-6 fatcat:y5cgp2kfsje4zmgyxeiytjqycy

Trentino Government Linked Open Geo-data: A Case Study [chapter]

Pavel Shvaiko, Feroz Farazi, Vincenzo Maltese, Alexander Ivanyukovich, Veronica Rizzi, Daniela Ferrari, Giuliana Ucelli
2012 Lecture Notes in Computer Science  
We report our experimental work on publishing some government linked open geo-metadata and geo-data of the Italian Trentino region.  ...  Hence, such a heterogeneity has to be addressed, while performing various data integration tasks.  ...  Trentino Open Data (TOD) group members for many fruitful discussions on the various aspects of releasing open government data covered in this paper.  ... 
doi:10.1007/978-3-642-35173-0_13 fatcat:olb2quds6rca3azaezbii7nbay

Designing Service Architectures for Distributed Geoprocessing: Challenges and Future Directions

Anders Friis-Christensen, Nicole Ostländer, Michael Lutz, Lars Bernard
2007 Transactions on GIS  
The prototype provides users with a distributed application that enables the assessment of fire damage areas based on land cover data in a given area.  ...  In this paper we study the feasibility of using services offered by a Spatial Data Infrastructure as a basis for distributed service oriented geoprocessing.  ...  Examples for specifications looking into this issue are the related OGC discussion papers on the Geolinking Service (OGC 2004c) and the Geolinked Data Access Service (OGC 2004b) .  ... 
doi:10.1111/j.1467-9671.2007.01075.x fatcat:545azwinajhijk5ahrmt2dc4j4

Modular ontology modeling

Cogan Shimizu, Karl Hammar, Pascal Hitzler, Sabrina Kirrane, Axel-Cyrille Ngonga Ngomo
2022 Semantic Web Journal  
MOMo builds on the established eXtreme Design methodology, and like it emphasizes modular development and design pattern reuse; but crucially adds the extensive use of graphical schema diagrams, and tooling  ...  In this paper, we present the MOMo workflow in detail, and describe several useful resources for executing it.  ...  Ongoing work regarding the integration of multiple datasets (e.g., NOAA storm data, USGS earthquake data, and FEMA disaster declarations) 17 while using their spatial data as the dimension of integration  ... 
doi:10.3233/sw-222886 fatcat:m3fawvtfvvf2nb4fsg36dyzfa4
« Previous Showing results 1 — 15 out of 41 results