In content as creation becomes overabundant and as value shifts from creator to

In content as creation becomes overabundant and as

This preview shows page 25 - 35 out of 59 pages.

“In content, as creation becomes overabundant and as value shifts from creator to curator, it becomes all the more vital to properly cite and link to sources [...]. Good curation demands good provenance. [...] Provenance is no longer merely the nicety of artists, academics, and wine makers. It is an ethic we expect. ” – Jeff Jarvis To trust information on the Web , we need provenance: Who created it, how did it originate? Who delivered it to us? Does it come with any licenses or guarantees? 25 ttps://en.wikipedia.org/wiki/Vint_Cerf#/media/File:Vint_Cerf_-_2010.jpg ttps://en.wikipedia.org/wiki/Jeff_Jarvis#/media/File:Jeff_Jarvis,_famous_blogger.jpg
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Provenance and The Design of the Web 26 "At the toolbar (menu, whatever) associated with a document there is a button marked "Oh, yeah?". You press it when you lose that feeling of trust. It says to the Web, 'so how do I know I can trust this information?'. The software then goes directly or indirectly back to meta-information about the document, which suggests a number of reasons.” T. Berners-Lee, Web Design Issues, 1997
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Representing Provenance 27
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A Widely-Used Provenance Vocabulary: PROV actedOnBehalfOf 28
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Workflow vs. Provenance (in PROV) cdot:modeler rdf:is-a p-plan:activity cdot:classifier rdf:is-a p-plan:activity prov:used dom:model prov:generatedBy prov:used dom:trainingData dom:classification prov:generatedBy prov:used dom:testData prov:used dom:classIndex prov:used 29
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Example […] We took a quartzite sample from the Hellerman thrust zone, and cut 3 thin sections. We measured c-axis orientations using a petrographic microscope. We rotated to a common reference frame using Duyster’s StereoNett program. We plotted the data on lower hemisphere, equal area projections using Duyster’s StereoNett program, shown in Figure 4. […] nderstanding kinematic data from e Hellerman thrust zone ade Silverstein and Joseph Wilson 30
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Sketch of the Provenance […] We took a quartzite sample from the Hellerman thrust zone , and cut 3 thin sections. We measured c-axis orientations using a petrographic microscope . We rotated to a common reference frame using Duyster’s StereoNett program . We plotted the data on lower hemisphere, equal area projections using Duyster’s StereoNett program , shown in Figure 4 . […] nderstanding kinematic data from e Hellerman thrust zone ade Silverstein and Joseph Wilson Quartzite sample Petrographic microscope measurements C-axis orientations StereoNett Rotation Common reference frame StereoNett Plotting Figure 4 plot 31
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Using PROV Joseph Wilson Jade Silverste in Quartzite sample Petrographic microscope measurements C-axis orientations StereoNett Rotation Common reference frame StereoNett Plotting Figure 4 plot used used used wasGeneratedBy wasGeneratedBy wasGeneratedBy used used wasAssociatedWith wasAssociatedWith wasAssociatedWith 32
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Three Pillars of Provenance 33
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The Many Meanings of Provenance A signature A document A method (CC BY-ND 2.0) 34
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