ERIKA Eesti Ressursid Internetis Kataloogimine ja

ArhiveerimineEstonian 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 criteriascentered on the conception of “website” - could be subdomain, server or catalog(Collection Development Department)

Current situation

Database with title,

url, comment

, dates

HttrackWebsite copier

Archive on

a hard drive

Website informatio

n

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

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

Access to filescheck for

correct saving

Websiteinforamtion

Harvester

Files Storedlocally

Indexing

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 interface2) Add link (links) of a webpage, some comments, update period3) 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 onlyIn pdf format.

ERIKA can contain any format you get from the internet