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Robust Linking to Web Resources

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"Robust Linking to Web Resources"
Presentation at Dodging the Memory Hole (DtMH) 2017

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Robust Linking to Web Resources

  1. 1. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA Robust Linking to Web Resources http://robustlinks.mementoweb.org/ Martin Klein @mart1nkle1n Research Library Los Alamos National Laboratory Acknowledgements: Herbert Van de Sompel, LANL Harihar Shankar, LANL Michael L. Nelson, ODU Mark Graham, Internet Archive
  2. 2. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 2 Slide by Herbert Van de Sompel, 2017 A Managed Collection Desires Reliable Outlinks
  3. 3. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 3 Slide by Herbert Van de Sompel, 2017 Links to another Managed Collection
  4. 4. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 4 Slide by Herbert Van de Sompel, 2017 Links to Web at Large Resources
  5. 5. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 5 Link Rot
  6. 6. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 6 https://web.archive.org/web/20140101072007/http://netpreserve.org/general-assembly/2013/overview IIPC 2013
  7. 7. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 7 http://netpreserve.org/general-assembly/2013/overview IIPC today
  8. 8. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 8 Content Drift
  9. 9. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 9 https://web.archive.org/web/20161228184110/https://www.epa.gov/climatechange EPA 12/2016
  10. 10. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 10 https://www.epa.gov/sites/production/files/signpost/cc.html EPA today
  11. 11. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 11 • On the web, all links are subject to reference rot • Reference rot hinders our ability to follow links as they were intended when they were put in place • Link rot: a link stops working all together • Content drift: The linked content changes over time and may eventually no longer be representative of the content that was originally linked Problem
  12. 12. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 12 http://dx.doi.org/10.1371/journal.pone.0115253 http://dx.doi.org/10.1371/journal.pone.0167475 Reference Rot in Scholarly Communication
  13. 13. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 13 Link Rot in Scholarly Articles
  14. 14. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 14 Link Rot in Scholarly Articles
  15. 15. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 15 Reference Rot Over Time - arXiv
  16. 16. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 16 • On the web, all links are subject to reference rot • Reference rot hinders our ability to follow links as they were intended when they were put in place • Link rot: a link stops working all together • Content drift: The linked content changes over time and may eventually no longer be representative of the content that was originally linked How can we: 1. Make links more robust? 2. Make them actionable for humans and machines? Problem
  17. 17. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 17 Robust Links
  18. 18. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 18 Robust Links 1. Create a snapshot of referenced resources in a public web archive
  19. 19. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 19 Why multiple archives? They aren’t magic web sites! They’re just web sites. If you used Mummify, you’re now left with a bunch of defunct, shortened links like: https://mummify.it/XbmcMfE3 Slide by Michael L. Nelson, 2016
  20. 20. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 20 Robust Links 1. Create a snapshot of referenced resources in a publically available web archive 2. Decorate links with: • URI of archived snapshot • datetime of archiving • resource’s original URI
  21. 21. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 21 Link Decoration with Standard HTML <a href="http://web.archive.org/web/20171108053054/http://sfgov.org/" data-originalurl="http://sfgov.org/" data-versiondate="2017-11-08"> City and County of San Francisco</a> http://robustlinks.mementoweb.org/spec
  22. 22. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 22 Link Decoration via API http://robustlinks.mementoweb.org/api/json/http://web.archive.org/web/20171108053054/http://sfgov.org/ • Submit URI of an archived snapshot • Retrieve Robust Links HTML snippet • Copy and paste into your application http://robustlinks.mementoweb.org/api/json/{URI-of-archived-snapshot}
  23. 23. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 23 Robust Links 1. Create a snapshot of referenced resources in a publically available web archive 2. Decorate links with: • URI of archived snapshot • datetime of archiving • resource’s original URI Benefits: • Can visit archived, immutable version of referenced resource • Original URI & capture datetime allow finding versions in other web archives • Uniform, machine-actionable
  24. 24. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 24 Robust Links for Machines 1. JavaScript 2. Browser extensions a. Memento for Chrome b. IA Chrome Extension
  25. 25. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 25 Robust Links in Action - JavaScript http://dx.doi.org/10.1045/november2015-vandesompel
  26. 26. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 26 Robust Links in Action - JavaScript http://dx.doi.org/10.1045/november2015-vandesompel
  27. 27. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 27 Robust Links in Action – Memento for Chrome https://chrome.google.com/webstore/detail/memento-time-travel/jgbfpjledahoajcppakbgilmojkaghgm
  28. 28. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 28 Robust Links in Action – Memento for Chrome http://robustlinks.mementoweb.org/demo/uri_references.html
  29. 29. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 29 Robust Links in Action – IA Chrome Extension https://chrome.google.com/webstore/detail/wayback-machine/fpnmgdkabkmnadcjpehmlllkndpkmiak
  30. 30. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 30 Robust Links in Action – IA Chrome Extension
  31. 31. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 31 Robust Links in Action – IA Chrome Extension
  32. 32. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 32 Robust Links in Action – IA Chrome Extension
  33. 33. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA 33 Take-Aways • Links on the web are subject to reference rot • “Robustifying” them (manually or via API calls) can help alleviate the problem • Link decorations as proposed by Robust Links are • based on HTML standards • machine-actionable • Organizations such as the Internet Archive, Wikipedia, News Publishers can help with adoption
  34. 34. Robust Linking to Web Resources @mart1nkle1n DtMH 2017, 11/15/2017, San Francisco, CA Robust Linking to Web Resources http://robustlinks.mementoweb.org/ Martin Klein @mart1nkle1n Research Library Los Alamos National Laboratory Acknowledgements: Herbert Van de Sompel, LANL Harihar Shankar, LANL Michael L. Nelson, ODU Mark Graham, Internet Archive

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