Uses utilities and convenience functions the provide shortcuts for frequently used patterns, such as matching the multiple label properties used in real data. – Linked Data for Professional Education https://ld4pe.dublincore.org Learning resources tagged by competency Thu, 19 Nov 2020 14:45:03 +0000 en-US hourly 1 https://wordpress.org/?v=4.9.16 SPARQL Package for R: Movie Star Graph Visualization Tutorial https://ld4pe.dublincore.org/learning_resource/sparql-package-for-r-movie-star-graph-visualization-tutorial/ Sun, 06 Aug 2017 07:58:04 +0000 https://ld4pe.dublincore.org/learning_resource/sparql-package-for-r-movie-star-graph-visualization-tutorial/ The SPARQL Package allows you to directly import results of SPARQL SELECT queries into the statistical environment of R as a data frame, allowing one to directly perform statistical analysis on datasets on the web. This tutorial shows how to do a visual analysis with the Gephi graph visualization tool, and basic social network analysis with R of the data in the DBpedia repository about Hollywood movies. It makes use of the SPARQL Package for R and the igraph library.

URL: http://linkedscience.org/tools/sparql-package-for-r/sparql-package-for-r-gephi-movie-star-graph-visualization-tutorial/
Keywords: R (programming language), Linked Open Data (LOD), Statistical analysis, Data visualization, Gephi
Author: van Hage, Willem Robert
Publisher: COMBINE project
Language: http://id.loc.gov/vocabulary/iso639-2/eng
Time required: P90M
Educational use: instruction
Educational audience: student
Interactivity type: mixed

]]> SPARQL Package for R: Linked Open Piracy Tutorial https://ld4pe.dublincore.org/learning_resource/sparql-package-for-r-linked-open-piracy-tutorial/ Sun, 06 Aug 2017 07:58:04 +0000 https://ld4pe.dublincore.org/learning_resource/sparql-package-for-r-linked-open-piracy-tutorial/ This tutorial shows how to do a visual analysis and basic statistical analysis of the data in the Linked Open Piracy data set. It makes use of the SPARQL Package for R and the ggmap package. The SPARQL Package allows one to directly import results of SPARQL SELECT queries into the statistical environment of R as a data frame, allowing one to directly perform statistical analysis on datasets from the web.

URL: http://linkedscience.org/tools/sparql-package-for-r/linked-open-piracy-tutorial/
Keywords: R (programming language), Linked Open Data (LOD), Statistical analysis, Data visualization
Author: van Hage, Willem Robert
Publisher: COMBINE project
Language: http://id.loc.gov/vocabulary/iso639-2/eng
Time required: P1H
Educational use: instruction
Educational audience: student
Interactivity type: mixed

]]> Making Sense of Linked Data with Python https://ld4pe.dublincore.org/learning_resource/making-sense-of-linked-data-with-python/ Thu, 04 May 2017 06:59:04 +0000 https://ld4pe.dublincore.org/learning_resource/making-sense-of-linked-data-with-python/ This blog post goes over three basic tasks for consuming RDF with Python: Fetching the data; Parsing the data returned into a graph; Traversing the graph to display the data. It also includes a detailed breakdown of a piece of functional code that extracts from a virtual graph four sets of values: Name(s) of the Creative Work; Name(s) of the Author(s); Description of the Creative Work;
Name(s) of the Subject(s).

URL: http://www.oclc.org/developer/news/2016/making-sense-of-linked-data-with-python.en.html
Keywords: Python, RDFLib, Query, JSON-LD
Author: Mixter, Jeff
Publisher: OCLC (Online Computer Library Center)
Date created: 2016-06-10 04:00:00.000
Language: http://id.loc.gov/vocabulary/iso639-2/eng
Time required: P20M
Educational use: instruction
Educational audience: student
Interactivity type: expositive

]]> Navigating Graphs https://ld4pe.dublincore.org/learning_resource/navigating-graphs/ Tue, 03 May 2016 13:01:46 +0000 https://ld4pe.dublincore.org/learning_resource/navigating-graphs/ Documentation explaining that an RDF Graph is a set of RDF triples, which RDFLib mirrors with a graph emulating a container type. Also contains a list of all convenience methods for querying Graphs.

URL: http://rdflib.readthedocs.org/en/stable/intro_to_graphs.html
Keywords: Python
Language: http://id.loc.gov/vocabulary/iso639-2/eng
Time required: P15M
Interactivity type: expositive

]]> RDFLib Examples Package https://ld4pe.dublincore.org/learning_resource/rdflib-examples-package/ Tue, 03 May 2016 13:01:46 +0000 https://ld4pe.dublincore.org/learning_resource/rdflib-examples-package/ This documentation includes examples on the following subjects: 1) creating named graphs and working with the conjunction of all the graphs; 2) registering new mappings between literal datatypes and Python objects; 3) adding custom evaluation functions to handle certain SPARQL Algebra elements; 4) overloading Python operators on URIRefs to allow for creating path operators directly in Python; 5) binding variables,; 6) processing RDFa data from the Web. These examples all live in ./examples in the source-distribution of RDFLib.

URL: http://rdflib.readthedocs.org/en/stable/apidocs/examples.html
Keywords: Python, SPARQL, RDFa
Language: http://id.loc.gov/vocabulary/iso639-2/eng
Time required: P30M
Educational use: instruction
Educational audience: student
Interactivity type: expositive

]]> Querying with SPARQL https://ld4pe.dublincore.org/learning_resource/querying-with-sparql/ Tue, 03 May 2016 13:01:46 +0000 https://ld4pe.dublincore.org/learning_resource/querying-with-sparql/ This documentation covers how to use the Python programming languages's RDFLib implementation of the SPARQL 1.1 Query and SPARQL 1.1 Update languages.

URL: http://rdflib.readthedocs.org/en/latest/intro_to_sparql.html
Keywords: Python, SPARQL
Language: http://id.loc.gov/vocabulary/iso639-2/eng
Time required: P10M

]]>