China
Africa
Explore chapters and articles related to this topic
Semantically Linked Media for Interactive User-Centric Services
Published in Hassnaa Moustafa, Sherali Zeadally, Media Networks: Architectures, Applications, and Standards, 2016
Violeta Damjanovic, Thomas Kurz, Georg Güntner, Sebastian Schaffert, Lyndon Nixon
LMF Search: It offers semantic search over resources that is based on Apache SOLR. It includes extendable rule-sets for RDF, SKOS (Simple Knowledge Organization System), DC, and GeoNames. The LMF search module can be accessed via REST API that conforms to the OpenSearch* standard and is compatible with the Apache SOLR search. For example, text-based semantic index is built upon an SOLR multicore index for multilingual indexing. The reindexing of resources is pushed by several events in the core module such as resource_created, resource_updated, and so on. In addition, the LMF REST API is implemented as frontend that can serve to a number of existing commercial systems in a way that they can expose their content and metadata following Linked Data principles.
Multi-scale hydrological system-of-systems realized through WHOS: the brokering framework
Published in International Journal of Digital Earth, 2022
Enrico Boldrini, Stefano Nativi, Silvano Pecora, Igor Chernov, Paolo Mazzetti
The implemented discovery interfaces include: OAI-PMH (The OAI Executive 2002): The Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH) interface provides metadata harvesting functionalities. WHOS OAI-PMH support metadata encoding in Dublin Core, ISO 19115, ISO 19115-2 and WIGOS metadata models.OGC CSW (OGC 2007): The Open Geospatial Consortium (OGC) Catalogue Service for the Web (CSW) interface provides metadata search functionalities. WHOS OGC CSW support metadata encoding in Dublin Core, ISO 19115, ISO 19115-2 and ISO 19115 community profiles.OpenSearch (DeWitt 2018): Amazon A9 OpenSearch interface provides custom metadata search functionality. The actual available interface is described within the search engine description document, including parameterized URL templates that indicate how the search clients should make search requests. WHOS OpenSearch supports the GeoRSS/Atom metadata model and JSON.CUAHSI HIS Central (Whitenack, Zaslavsky, and Valentine 2008): The Consortium of Universities for the Advancement of Hydrologic Science, Inc. (CUAHSI) HIS Central interface provides service and time series discovery functionalities.