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Web Archiving

ERIKA Eesti Ressursid Internetis Kataloogimine ja Arhiveerimine Estonian Resources in Internet, Indexing and Archiving. Future ways Whole “.ee” domain (crawler) Based on criterias

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Web Archiving

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  1. ERIKA Eesti Ressursid Internetis Kataloogimine ja ArhiveerimineEstonian Resources in Internet, Indexing and Archiving

  2. Future ways Whole “.ee” domain (crawler) Based on criterias centered on the conception of “website” - could be subdomain, server or catalog(Collection Development Department) Web Archiving Experience • Based on criterias (Collection Development Department) • very narrow approach – traditional bibliographic view of “publication” • document centered – only certain files, not the site as a whole • shortcomings of this approach slide 5 (httrack, nedlib, webzip)

  3. Database with title, url, comment, dates Website information Httrack Website copier Archive on a hard drive Current situation

  4. Current situation • Registration’s database • Httrack website copier • Httrack logs’ database • Website files not indexed, not packed (50 GB) • Simple web interface • Record in OPAC links to original url Using freeware for all

  5. Current situation Problems • Manual labour • Missing web publications • Missing the context of publications (user may prefer to browse archived website not to search by title and author of a certain file) • Limiting out resources that are not “publications” but are important for the national memory (websites of political parties) Advantages • Take only what we need • Extensive bibliographic descriptions • Everything is under control

  6. software • httrack • takes a list of urls • saves website as a mirror, all links internal links are converted to point to local mirror • tests in history • nedlib harvester, downloads files and meta-info does not save internal structure • webzip (similar to httrack saves a mirror problem – licenced software)

  7. software

  8. software

  9. access • httrack logs are read into database • access script • redirecting urls • content-type (problem with x.php?file=id saves as html while in reality is pdf or else) • OPAC records will be updated to point to the archive • full-text index?

  10. Perspectives

  11. Perspectives • Test IIPC software (netpreserve.org) • Use a crawler to collect (heritrix) • Cooperation with neti.ee – Nuhk (Spy) crawler? Scope • as much as possible • strict criterias

  12. Perspectives • Heritrix(http://crawler.archive.org/), Nutchwax, WERA crawl + index + pack + web interface • Neti.ee (www.neti.ee) own crawler, database of current situation, only “estonian” ip addresses, buffer includes only text- no images or other formats

  13. Perspectives • Based on criterias system more automated: Steps: 1) Login to a web interface 2) Add link (links) of a webpage, some comments, update period 3) System gets the page and saves to archive (packed or unpacked) 4) Control the webpage saved in archive

  14. Perspectives DIGAR includes objects with controlled structure only In pdf format. ERIKA can contain any format you get from the internet DIGAR ERIKA

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