a standardized digitool ingest approach to internet archive digitized books
DESCRIPTION
A Standardized DigiTool Ingest Approach to Internet Archive Digitized Books. Joseph Shubitowski ([email protected]) IGeLU 2008, September 9, 2008. Talking Points:. Scope / Background Why? Major hurdles Manual / automated workflows Outcomes What can we share? Results Methodologies - PowerPoint PPT PresentationTRANSCRIPT
A Standardized DigiTool Ingest Approach to Internet Archive
Digitized Books
Joseph Shubitowski ([email protected])IGeLU 2008, September 9, 2008
Talking Points:
• Scope / Background• Why?• Major hurdles• Manual / automated workflows• Outcomes• What can we share?
– Results– Methodologies– Tools, etc.
IGeLU Conference 2008, September 9, 2008
Alfred P. Sloan Foundation
Getty Research InstituteArchaeology and antiquities
Boston Public LibraryJohn Adams collection
Johns HopkinsAnti-slavery materials
The Metropolitan Museum of ArtMuseum Publications
Bancroft LibraryGold Rush and westward expansion
IGeLU Conference 2008, September 9, 2008
Scope of the Digitization Project
2,000,000 pages or approx. 5,000 books
Self-evident collection
Public domainpre-1923 for works published in U.S.pre-1909 for works published outside
of U.S.
IGeLU Conference 2008, September 9, 2008
Internet Archive Scribe Station
1 Pod = 10 Scribe Stations
IGeLU Conference 2008, September 9, 2008
Why Do it?
• Internet Archive issues– Response/search time– Metadata only searching– No control
• Full-text searching
• Use in metasearch
• More control!
IGeLU Conference 2008, September 9, 2008
Major Hurdles
• Getting the files• Disk space issues – for general
storage and for DTL• What/how to process all the files• Abbyy OCR vs. ALTO OCR• Thumbnail generation• Handle configuration/synchronization
IGeLU Conference 2008, September 9, 2008
List of OCR’d books received from Internet Archive
Processed by GRI
URLs from Internet Archive
Link to URLs
Download files from Internet Archive
Zipped or tar files: *_orig_jp2 *_jp2 *_raw_jp2
high & low resolution PDFs*abbyy.gz*meta.xml*marc.xml
Process downloaded files
Ready for Digitool Ingest
IGeLU Conference 2008, September 9, 2008
IGeLU Conference 2008, September 9, 2008
IGeLU Conference 2008, September 9, 2008
IGeLU Conference 2008, September 9, 2008
Disk Space Issues
• Each digitized book = 500MB to 1.5 GB of raw files
• Further untarring and processing consume even more disk!
• DTL scratch/processing space, permanent storage space, and Oracle tablespace – including full text indexing consumes even more disk space
• 3000 books in the queue will require 10-15 TB for this project alone.
IGeLU Conference 2008, September 9, 2008
• DTL ingest package =– Archive = raw jpeg2000 (renamed to
*.j2k)– View = use copy jpeg2000 (*.jp2)– Index = ALTO files– Thumbnail = appropriate thumb of title
page for display of the complex object– PDF = high res PDF as additional
manifestation– MARCXML record for IE level metadata
• No TIF files from IA – everything is jpeg2000
• Mapping file same for every ingest• CSV file is produced automatically
IGeLU Conference 2008, September 9, 2008
Abbyy to ALTO
• IA scanning produces one huge OCR file in Abbyy proprietary XML
• Discussions with / proposal from CCS• Real need to open source approach
– Abbyy XSD can morph in future– Desire to share
• Contract with Ex Libris to produce tool– Java based– Includes jar and class files– Free to share and redistribute
• Tool transforms single ABBYY file to ALTO-file-per-page XML files
IGeLU Conference 2008, September 9, 2008
Thumbnail Creation
• Initial ingest flow created complex object thumbnail from first page of PDF manifestation
• Boring!• Ghostscript/PDF/ImageMagick problems• Decision to go semi-manual with script/cgi
that:– creates thumbnails for first 15 jpeg2000 page
images– sends URL in email for each separate ingest– creates web page for page image viewing and
thumbnail selection– adds chosen thumbnail to staging directory,
cleans up, and sends confirmation email
IGeLU Conference 2008, September 9, 2008
IGeLU Conference 2008, September 9, 2008
Handle Generation
• Setup per DTL docs• Firewall tweaks• Ingest flow tweaks
– Handle for IE– Handles for all archive jpeg2000 images
• DTL errors with mass publication of Handles– Fixed in SP21
IGeLU Conference 2008, September 9, 2008
Ingest Summary
• Get/process/stage files• Generate ALTO OCR files• Web CGI for thumbnail selection• Load.sh script moves all files to
locations DTL expects• Activate saved Ingest Flow from
DTL Web Ingest client• Wait.........
IGeLU Conference 2008, September 9, 2008
Outstanding Issues
• Ingest speed– Remedied somewhat in SP21– Digitized books are just darn big!– Low number of ingests per day
• Handles– Manual publishing process– Need to populate Voyager bib record
• METS viewer performance issues
IGeLU Conference 2008, September 9, 2008
Success Factors !!
• Code to share– Get/process/staging scripts– Abbyy/ALTO transform code– Web cgi thumbnail code– YMMV
• Handles provide true persistent IDs– http://hdl.handle.net/10020/17473
• Full-text multilingual searching– MetaLib QuickSet for metasearch of all
local repositories
IGeLU Conference 2008, September 9, 2008
Demo and Thanks......
• http://archives.getty.edu
IGeLU Conference 2008, September 9, 2008