Linked Data: Structured data on the Web by David Wood, Marsha Zaidman, Luke Ruth, Michael Hausenblas

By David Wood, Marsha Zaidman, Luke Ruth, Michael Hausenblas

The present internet is known as a choice of associated records beneficial for human intake. The evolving internet comprises information collections that could be pointed out and associated so that it will be fed on via automatic procedures. The W3C method of this is often associated facts and it truly is already utilized by Google, fb, IBM, Oracle, and govt organisations worldwide.

Linked facts provides useful innovations for utilizing associated facts on the net through ordinary instruments like JavaScript and Python. You'll paintings step by step via examples of accelerating complexity as you discover foundational techniques similar to HTTP URIs, the source Description Framework (RDF), and the SPARQL question language. Then you'll use a variety of associated facts rfile codecs to create robust net functions and mashups.

Written to be instantly beneficial to internet builders, this ebook calls for no past publicity to associated facts or Semantic internet applied sciences.

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Additional info for Linked Data: Structured data on the Web

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Note the different data sources combined to form the page. view. 22 CHAPTER 1 Introducing Linked Data together. Linked Data was used as a common data language, a lingua franca, to facilitate combining that information. 1 Accessing a facility’s Linked Data Next, you should try clicking the links in the upper-right corner of the page under the heading Linked Data. All three links will show the data used to create the page, each one using a different Linked Data format. The top link is labeled Describe Data and goes to an HTML view of the raw data that’s nicely laid out.

Let’s look at the data to see how the UI was created. A small extract of the Linked Data will be enough to prove the point. The next listing shows an extract that contains information used to create the map, show the picture of the plant, and show a URI used to get information about the street address. Again, if you try the given curl command, the data you’ll get back will be larger and you may need to look through it to find the part we extracted for this example. 1/> . org/ontology/places#> .

Literals (such as strings, numbers, or dates) can’t be subsequently used as subjects. com/dwood/) and all use the same predicate (dc:creator). Two of the statements end in literal objects (“David Wood” and “Marsha Zaidman”). ttl#Me. That URI resolves on the Web to an RDF document describing Luke Ruth and provides a unique, worldwide, unambiguous web identifier for Luke. 1/creator. 4 RDF formats for Linked Data. 1/) and a suffix (creator). 1/creator. We’ll continue to use both long URIs and prefixed URIs throughout our examples so you get used to seeing them.

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