ERIKA Eesti Ressursid Internetis Kataloogimine ja Arhiveerimine Estonian Resources in Internet, Indexing and Archiving

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) Future ways Whole “.ee” domain (crawler) Based on criterias centered on the conception of “website” - could be subdomain, server or catalog(Collection Development Department)

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

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

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

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)

software

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?

Perspectives DB registartion Harvester Files Stored locally Indexing Access to files check for correct saving Website inforamtion

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

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

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

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