Harvesting and semantically tagging media releases from political websites using web services

P
Peter NeishSystems Officer / Web developer
••
Harvesting and semantically tagging media releases from political websites using web services Peter Neish, Systems Officer Victorian Parliamentary Library @peterneish
What will be covered ,[object Object],[object Object],[object Object],[object Object],[object Object]
About the library ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Media Releases ,[object Object],[object Object],[object Object],[object Object]
Number of Media Releases per year 0 1000 2000 3000 4000 5000 6000 7000 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
Media releases by party 0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 ALP Coalition Green Independent
Project aims ,[object Object],[object Object],[object Object]
Part 1: Automation ,[object Object],[object Object],[object Object],[object Object]
What we built Polls RSS feed for links DB Textworks wkhtml2pdf Servlet Metadata
Technologies used ,[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Part 2: Semantic Tagging ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Open Calais ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Example Open Calais ,[object Object]
Number of Tags assigned by OpenCalais 0 500 1000 1500 2000 2500 3000 3500 4000 4500 0 20 40 60 80 100 120 Tags per item Total number
User interface
Tag Quality 85% 4% 6% 5% Correct Tags Incorrect Tags Repeated Tags Redundant Tags
Problems - disambiguation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Photo by http://www.flickr.com/photos/meckimac/2971992/ Photo by http://www.flickr.com/photos/eclogite/257560117/
Linked Data ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Conclusion ,[object Object],[object Object],[object Object],[object Object]
1 of 20

Harvesting and semantically tagging media releases from political websites using web services

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Presented at VALA2012 by Peter Neish on February 9 2012 describing how media releases were automatically harvested from political websites by polling the RSS feeds or relevant sites. Media releases were semantically tagged using the OpenCalais web service.

P
Peter NeishSystems Officer / Web developer

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Harvesting and semantically tagging media releases from political websites using web services

  • 1. Harvesting and semantically tagging media releases from political websites using web services Peter Neish, Systems Officer Victorian Parliamentary Library @peterneish
  • 2.
  • 3.
  • 4.
  • 5. Number of Media Releases per year 0 1000 2000 3000 4000 5000 6000 7000 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
  • 6. Media releases by party 0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 ALP Coalition Green Independent
  • 7.
  • 8.
  • 9. What we built Polls RSS feed for links DB Textworks wkhtml2pdf Servlet Metadata
  • 10.
  • 11.
  • 12.
  • 13.
  • 14.
  • 15. Number of Tags assigned by OpenCalais 0 500 1000 1500 2000 2500 3000 3500 4000 4500 0 20 40 60 80 100 120 Tags per item Total number
  • 17. Tag Quality 85% 4% 6% 5% Correct Tags Incorrect Tags Repeated Tags Redundant Tags
  • 18.
  • 19.
  • 20.

Editor's Notes

  1. Talk about the Parliamentary Library: Established in 1851, building itself 1858–60
  2. What will be covered in today’s talk