ERIKA Eesti Ressursid Internetis Kataloogimine ja Arhiveerimine Estonian

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

Current situation • • • Registration’s database Httrack website copier Httrack logs’ database Website files not indexed, not packed Simple web interface Record in OPAC links to original url (50 GB) 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 metainfo does not save internal structure – webzip (similar to httrack saves a mirror problem – licenced software)

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

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 (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

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