razorbase examples part 2
DESCRIPTION
A demonstration of the benefits of Linked Data in a typical web browsing contextTRANSCRIPT
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Razorbase Examples pt. 2(Linked Data at Work)
By Sherman Monroe
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Razorbase
• A browser for exploring the Linked Open Data cloud using OpenLink Facets API
Live demo available at http://www.razorbase.com
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Task 1: Find a friend
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Results set
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Find a friend
• Found some things named Kingsley Idehen, surely our subject in this set
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Find a friend
• Found some things named Kingsley Idehen, surely our subject in this set
• Now use the Alternative Ids button to pivot to his alternative identifications and profiles on the web
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Task 2: Browse friend’s dataspaces
• Let’s take a look at what our friend is up to on the web
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This looks like some kind of music related profile
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Here’s his LinkedIn profile, hmm… let’s look more
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Looks like a Rating/Reviews site…
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… let’s pull this profile
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Subject page for Kingsley Idehen’s revyu.com profile
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List of filters for this subject
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View all Information available about subject
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Browse friend’s dataspace: Sparse results
• Only a few pieces of info for subject
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Browse friend’s dataspace: Sparse results
• Only a few pieces of info for subject• Let’s look at the Reverse Connections for
subject
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Browse friend’s dataspace
• Reverse connections are connections to other things that go the opposite direction
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Browse friend’s dataspace
• Reverse connections are connections to other things that go the opposite direction
• An example would be Blue a color of the sky
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Browse friend’s dataspace
• Reverse connections are connections to other things that go the opposite direction
• An example would be Blue a color of the sky• We see here that the subject has reviews
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Add information to the view
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Add information to the view (same function)
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Let’s scroll page right
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New column added
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Task 3: Lookup other mutual reviews
• We have pulled a review the subject made about Facebook. Let’s pivot to what others have to say about Facebook.
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Task 3: Lookup other mutual reviews
• We have pulled a review the subject made about Facebook. Let’s pivot to what others have to say about Facebook.
• Use the Mutual Connections button
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Let’s scroll page left
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Mutual Connections
• The Mutual Connections have returned all reviewers who created this review, so it makes sense that our subject is the only result
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Mutual Connections
• The Mutual Connections have returned all reviewers who created this review, so it makes sense that our subject is the only result
• The question is, how do we find other reviews about Facebook from here?
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Mutual Connections
• The Mutual Connections have returned all reviewers who created this review, so it makes sense that our subject is the only result
• The question is, how do we find other reviews about Facebook from here?
• Let’s see if the review itself has an explicit connection to Facebook
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Mutual Connections
• The Mutual Connections have returned all reviewers who created this review, so it makes sense that our subject is the only result
• The question is, how do we find other reviews about Facebook from here?
• Let’s see if the review itself has an explicit connection to Facebook
• From there, we can pivot to other reviews
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Let’s return to the reviews
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Let’s return to the reviews (same function)
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Mutual Connections
• The primaryTopic information sounds useful
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Mutual Connections
• We now have the topics of the reviews
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Mutual Connections
• We now have the topics of the reviews• We see Facebook has its very own topic
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Mutual Connections
• We now have the topics of the reviews• We see Facebook has its very own topic • Let’s now pivot to reviews that are under the
topic: Facebook
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Let’s scroll page left
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This column is pointing backward…
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… to these reviews, which are filtered
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Let’s scroll page left
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What we want are all mutual reviews having this topic …
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… regardless of their relationship to the subject
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This isn’t about Facebook
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Let’s add a filter on the primaryTopic information
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Binds this value to the current subject (primaryTopic)
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Now that the primaryTopic is bound to Facebook,let’s return to the reviews under this topic
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Task 3: Explore mutual reviewers
• Now we have all reviews about Facebook
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Task 3: Explore mutual reviewers
• Now we have all reviews about Facebook• Let’s pivot to the other reviews Facebook
reviewers have made
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Let’s pull all information about these reviews
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Explore Mutual Reviewers
• The query description explains the criteria and filters of your query in plain language
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Explore Mutual Reviewers
• Let’s pivot to the primaryTopic of these reviews
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Browse Mutual Reviewers
• I see here that revyu.com isn’t reusing URIs from other dataspaces to represent topics
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Should be a more authoritative source,such as IMDB or DBPedia
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Browse Mutual Reviewers
• Instead, revyu.com is minting it’s own topic URIs
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Browse Mutual Reviewers
• Instead, revyu.com is minting it’s own topic URIs
• Shame on revyu.com
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Browse Mutual Reviewers
• Instead, revyu.com is minting it’s own topic URIs
• Shame on revyu.com• Watch what happens when you don’t reuse
URIs used by others…
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… users get sparse information about your subjects
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Total information available: only 9
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Browse Mutual Reviewers
• Had revyu.com used a more authorative source for it’s topic URIs (e.g. IMDB or DBPedia), then the information page could be embellished with many more connections made by others who reuse those URIs
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Conclusion
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Conclusion• We began with a person as the subject, and
ended with a list of reviews made by reviewers of Facebook, by pivoting sets and refining criteria for subjects in the query
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Conclusion• We began with a person as the subject, and
ended with a list of reviews made by reviewers of Facebook, by pivoting sets and refining criteria for subjects in the query
• Set pivoting is possible thanks to Linked Data
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Conclusion• We began with a person as the subject, and
ended with a list of reviews made by reviewers of Facebook, by pivoting sets and refining criteria for subjects in the query
• Set pivoting is possible thanks to Linked Data• The sources in this demo are independent
members of a growing federation, all following the Principles of Linked Data
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Principles of Linked Data
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Principles of Linked Data
• Use URIs as names for things
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Principles of Linked Data
• Use URIs as names for things
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Principles of Linked Data
• Use URIs as names for things• Use HTTP URIs
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Principles of Linked Data
• Use URIs as names for things• Use HTTP URIs
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Principles of Linked Data
• Use URIs as names for things• Use HTTP URIs• Provide useful information at the URI address
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Principles of Linked Data
• Use URIs as names for things• Use HTTP URIs• Provide useful information at the URI address
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Principles of Linked Data
• Use URIs as names for things• Use HTTP URIs• Provide useful information at the URI address• Reuse and make links to URIs used by others
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Now go grow the data web!