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Web Services and Linked Data

Web Services and Linked Data. INFM 603 Session 10. Networked Data Exchange. Service-Oriented Network of Workstations Web API Web services Service Oriented Architecture Content-oriented Web scraping Microformats Data repositories Linked data Mashups. The World’s Largest Supercomputer.

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Web Services and Linked Data

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  1. Web Services and Linked Data INFM 603 Session 10

  2. Networked Data Exchange • Service-Oriented • Network of Workstations • Web API • Web services • Service Oriented Architecture • Content-oriented • Web scraping • Microformats • Data repositories • Linked data • Mashups

  3. The World’s Largest Supercomputer

  4. SETI@Home:Network of Workstations

  5. Web Services Stateful: RESTful:

  6. Web Services

  7. <?xml version="1.0" encoding="UTF-8"?> <definitionsname="HugeIntegerService" targetNamespace="http://hugeinteger.ch28.iw3htp4.deitel.com/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:tns="http://hugeinteger.ch28.iw3htp4.deitel.com/" xmlns="http://schemas.xmlsoap.org/wsdl/"> <types><xsd:schema> <xsd:importxmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" schemaLocation="http://pjd:8080/HugeInteger/HugeIntegerService/ __container$publishing$subctx/WEB-INF/wsdl/HugeIntegerService_schema1.xsd" namespace="http://hugeinteger.ch28.iw3htp4.deitel.com/"/> </xsd:schema> </types> <messagename="add"><partname="parameters" element="tns:add"/></message> <messagename="addResponse"><partname="parameters" element="tns:addResponse"/> </message> “… <soap:bindingstyle="document" transport="http://schemas.xmlsoap.org/soap/http"/> <operationname="add"><soap:operationsoapAction=""/> <input><soap:bodyuse="literal"/></input> <output><soap:bodyuse="literal"/></output></operation> <operationname="equals"><soap:operationsoapAction=""/> <input><soap:bodyuse="literal"/></input><output><soap:bodyuse="literal"/></output> </operation> … <servicename="HugeIntegerService"> <portname="HugeIntegerPort" binding="tns:HugeIntegerPortBinding"> <soap:addressxmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" location="http://pjd:8080/HugeInteger/HugeIntegerService"/> </port> </service> </definitions> WSDL

  8. Services Oriented Architecture

  9. Networked Data Exchange • Service-Oriented • Network of Workstations • Web API • Web services • Service Oriented Architecture • Content-oriented • Web scraping • Microformats • Data repositories • Linked data • Mashups

  10. Web Scraping

  11. Microformats Human- and Machine-Readable Human-Readable <div id="contact"> <h2>Contact Me</h2> <p> You can contact me via email to <a href="mailto:jane@example.com">jane@example.com</a>, or send stuff to me at the following address:</p> <p>255 Some Street,<br /> Some Place,<br /> Some Town</p> </div> <div id="contact" class="vcard"> <h2>Contact Me</h2> <h3 class="fn">Jane Doe</h3> <p> You can contact me via email to <a class="email" href="mailto:jane@example.com">jane@example.com</a>, or reach me at the following address:</p> <div class="adr"> <div class="street-address">255 Some Street</div> <div class="locality">Some Town</div> <div class="region">Some Place</div> </div> </div>

  12. Data.gov

  13. Linked Open Data

  14. Networked Data Exchange • Service-Oriented • Network of Workstations • Web API • Web services • Service Oriented Architecture • Content-oriented • Web scraping • Microformats • Data repositories • Linked data • Mashups

  15. Mashups

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