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A Distributed Graph Approach For Pre-Processing Linked Rdf Data Using Supercomputers, Michael J. Lewis, George K. Thiruvathukal, Venkatram Vishwanath, Michael J. Papka, Andrew Johnson
A Distributed Graph Approach For Pre-Processing Linked Rdf Data Using Supercomputers, Michael J. Lewis, George K. Thiruvathukal, Venkatram Vishwanath, Michael J. Papka, Andrew Johnson
George K. Thiruvathukal
Efficient RDF, graph based queries are becoming more pertinent based on the increased interest in data analytics and its intersection with large, unstructured but connected data. Many commercial systems have adopted distributed RDF graph systems in order to handle increasing dataset sizes and complex queries. This paper introduces a distribute graph approach to pre-processing linked data. Instead of traversing the memory graph, our system indexes pre-processed join elements that are organized in a graph structure. We analyze the Dbpedia data-set (derived from the Wikipedia corpus) and compare our access method to the graph traversal access approach which we also devise. …
Re-Platforming Digital Collections For Enhanced Access & Search Functionality, Virginia A. Dressler
Re-Platforming Digital Collections For Enhanced Access & Search Functionality, Virginia A. Dressler
Virginia A Dressler
Currently, Kent State University Library is preparing to redesign its online exhibits and digital collections onto a new content management system and interface. The plan will entail migrating existing digital collections to a new platform, and in so, provide a more inclusive search mechanism to enhance access. In order to prepare for this migration, we are currently mapping the existing digital collections into a new metadata schema for the proposed solution, from a locally created and hosted framework into a more sustainable platform with a consolidated, searchable base for all digital objects and corresponding metadata. This work includes taking a …
"In The Early Days Of A Better Nation": Enhancing The Power Of Metadata Today With Linked Data Principles#11;, John Mark Ockerbloom
"In The Early Days Of A Better Nation": Enhancing The Power Of Metadata Today With Linked Data Principles#11;, John Mark Ockerbloom
John Mark Ockerbloom
We need not wait for the wholesale redesign of metadata and workflows to semantic web and linked data technologies in order to begin taking advantage of their design principles. This talk will show how metadata organized and presented in ways that encourage sharing, widespread reuse, and broad collaboration organized around community "hubs" can significantly improve resource discovery as well as other library services and information needs. Examples will be shown from systems designed around linked data standards and technologies and systems not so designed. While standard linked data formats and interfaces can aid in metadata reuse and maintenance, more general …
Gearing Up For Fedora 4, Virginia A. Dressler, Joe Corall
Gearing Up For Fedora 4, Virginia A. Dressler, Joe Corall
Virginia A Dressler
At Kent State University Libraries, we are gearing up for a migration to Fedora 4 with our existing digital collections. Using the D2RQ platform, we are transforming the extended Dublin Core elements of the current collections and creating a mapping file. Currently each collection has a separate SQL database, and the migration will enable a higher level of connectivity.
Applying Concepts Of Linked Data To Local Digital Collections To Enhance Access And Searchability, Virginia A. Dressler
Applying Concepts Of Linked Data To Local Digital Collections To Enhance Access And Searchability, Virginia A. Dressler
Virginia A Dressler
Plans are currently underway at the Kent State University Library to migrate digital objects onto a different content management system to address the needs of growing collections. The plan will involve shifting to a framework to enhance all current digital collections, as well as anticipating the growth of future projects and formats. The poster will touch in particular on the topic of enhancing search capabilities in this new framework, through use of a single, cross collection searchable index and also discuss the benefits of applying Linked Data concepts. Two current digital collections that will be highlighted and discussed in the …
Ontology-Guided Extraction Of Structured Information From Unstructured Text: Identifying And Capturing Complex Relationships, Sushain Pandit
Ontology-Guided Extraction Of Structured Information From Unstructured Text: Identifying And Capturing Complex Relationships, Sushain Pandit
Sushain Pandit
Many applications call for methods to enable automatic extraction of structured information from unstructured natural language text. Due to the inherent challenges of natural language processing, most of the existing methods for information extraction from text tend to be domain specific. This thesis explores a modular ontology-based approach to information extraction that decouples domain-specific knowledge from the rules used for information extraction. Specifically, the thesis describes: 1. A framework for ontology-driven extraction of a subset of nested complex relationships (e.g., Joe reports that Jim is a reliable employee) from free text. The extracted relationships are semantically represented in the form …
Rdf-Based Data Integration For Workflow Systems, Jun Shen, Yun Yang
Rdf-Based Data Integration For Workflow Systems, Jun Shen, Yun Yang
Dr Jun Shen
To meet the requirements of interoperability, the enactment of workflow systems for processes should tackle the problem of data integration for effective data sharing and exchange. This paper aims at flexibly describing workflow entities and relationships by innovative ontology engineering, which are emerging in process-centred environments, supported by Resource Description Framework (RDF) based languages and tools. Our novel framework takes into consideration to position the ontology level in the data integration dimension. Having taken a more realistic approach towards interoperability, we present basic constructs of a workflow specific ontology, with a suite of classes and properties selectively created. In particular, …