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Chapter and Conference Paper
Abstract Meaning Representations as Linked Data
The complex relationship between natural language and formal semantic representations can be investigated by the development of large, semantically-annotated corpora. The “Abstract Meaning Representation” (AMR...
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Chapter and Conference Paper
Leveraging Linked Data to Discover Semantic Relations Within Data Sources
Map** data to a shared domain ontology is a key step in publishing semantic content on the Web. Most of the work on automatically map** structured and semi-structured sources to ontologies focuses on seman...
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Chapter and Conference Paper
Finding Concept Coverings in Aligning Ontologies of Linked Data
Despite the recent growth in the size of the Linked Data Cloud, the absence of links between the vocabularies of the sources has resulted in heterogenous schemas. Our previous work tried to find conceptual map...
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Chapter and Conference Paper
A Graph-Based Approach to Learn Semantic Descriptions of Data Sources
Semantic models of data sources and services provide support to automate many tasks such as source discovery, data integration, and service composition, but writing these semantic descriptions by hand is a ted...
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Chapter and Conference Paper
Discovering Concept Coverings in Ontologies of Linked Data Sources
Despite the increase in the number of linked instances in the Linked Data Cloud in recent times, the absence of links at the concept level has resulted in heterogenous schemas, challenging the interoperability...
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Chapter and Conference Paper
Rapidly Integrating Services into the Linked Data Cloud
The amount of data available in the Linked Data cloud continues to grow. Yet, few services consume and produce linked data. There is recent work that allows a user to define a linked service from an online ser...
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Chapter and Conference Paper
Linking and Building Ontologies of Linked Data
The Web of Linked Data is characterized by linking structured data from different sources using equivalence statements, such as owl:sameAs, as well as other types of linked properties. The ontologies behind th...
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Chapter and Conference Paper
Automatically Constructing Semantic Web Services from Online Sources
The work on integrating sources and services in the Semantic Web assumes that the data is either already represented in RDF or OWL or is available through a Semantic Web Service. In practice, there is a tremen...
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Chapter and Conference Paper
Integration of Heterogeneous Knowledge Sources in the CALO Query Manager
We report on our effort to build a real system for integrating heterogeneous knowledge sources with different query answering and reasoning capabilities. We are conducting this work in the context of CALO (Cog...
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Article
Compiling Source Descriptions for Efficient and Flexible Information Integration
Integrating data from heterogeneous data sources is a critical problem that has received a great deal of attention in recent years. There are two competing approaches to address this problem. The traditional a...