A translation approach to portable ontology specifications
Knowledge Acquisition - Special issue: Current issues in knowledge modeling
Authoring and annotation of web pages in CREAM
Proceedings of the 11th international conference on World Wide Web
Toward the semantic geospatial web
Proceedings of the 10th ACM international symposium on Advances in geographic information systems
POESIA: An ontological workflow approach for composing Web services in agriculture
The VLDB Journal — The International Journal on Very Large Data Bases
Survey of semantic annotation platforms
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WOODSS and the Web: annotating and reusing scientific workflows
ACM SIGMOD Record
Developing scientific workflows from heterogeneous services
ACM SIGMOD Record
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A survey and classification of semantic search approaches
International Journal of Metadata, Semantics and Ontologies
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A framework to process complex biodiversity queries
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Overcoming semantic heterogeneity in spatial data infrastructures
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An efficient depression processing algorithm for hydrologic analysis
Computers & Geosciences
Semantic annotation for knowledge management: Requirements and a survey of the state of the art
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COSIT'05 Proceedings of the 2005 international conference on Spatial Information Theory
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A Semantic Approach to Describe Geospatial Resources
ER '09 Proceedings of the ER 2009 Workshops (CoMoL, ETheCoM, FP-UML, MOST-ONISW, QoIS, RIGiM, SeCoGIS) on Advances in Conceptual Modeling - Challenging Perspectives
Annotating data to support decision-making: a case study
Proceedings of the 6th Workshop on Geographic Information Retrieval
A provenance-based approach to evaluate data quality in eScience
International Journal of Metadata, Semantics and Ontologies
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The Web is a huge repository of geospatial information. Efficient retrieval of this information is a key factor in planning and decision-making in many domains, including agriculture. However, standards for data annotation and exchange enable only syntactic interoperability, while semantic heterogeneity presents challenges. This work describes a framework that tackles interoperability problems via semantic annotations, which are based on multiple ontologies. The framework is being developed within a project to support agricultural planning in Brazil. The paper discusses design and implementation issues using a real case study, provides an overview of annotation mechanisms and identifies requirements for annotating agricultural data.