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HathiTrust is an international partnership of academic and research institutions dedicated to ensuring the preservation and accessibility of the vast record of human knowledge. The partnership owns and operates a digital repository containing millions of public domain and in-copyright volumes, digitized from partnering institution libraries and other sources. The preserved volumes are made available in accordance with copyright law as a shared scholarly resource for students, faculty, and researchers at the partnering institutions and as a public good to the world community. For more information, visit HathiTrust.org .
In the first half of 2012, HathiTrust continued to expand our partnership, to further develop and refine our services, and to benefit from grant funded evaluations and explorations. In this period we’ve also seen momentum building for our HathiTrust Research Center, and the important milestone of the establishment of a new Board of Governors. The following provides detail on the richness of our many activities and accomplishments.
Details on each item can be found in the monthly updates from 2012, available at http://www.hathitrust.org/updates .
Two new partners joined HathiTrust in the first half of 2012:
HathiTrust Partners contributed nearly 400,000 volumes to HathiTrust from January – June 2012, raising the total number of total volumes to 10.4 million (view our Ten Million and Counting  blog post and timeline). More than 3 million of this total (about 30%) are in the public domain.
HathiTrust began or continued conversations with several institutions regarding direct ingest of locally-digitized content:
The University of Michigan created a first iteration of tools that partners can use to package their content to HathiTrust specifications prior to submission.
HathiTrust began conversations with the Getty Research Center, Penn State University, and the University of Florida regarding ingest of volumes from the Internet Archive.
HathiTrust ingested large numbers of volumes from the University of Illinois (~80,000 volumes) and Harvard University Library (~150,000 volumes).
Deposits from all institutions are shown in the table below.
|Volumes Added||Since Jan 2012||Total Volumes|
|Library of Congress||5||89,416|
|North Carolina State University||0||3,196|
|University of North Carolina - Chapel Hill||1||8,088|
|New York Public Library||106||259,559|
|Penn State University||405||43,322|
|University of California||49,128||3,336,782|
|The University of Chicago||10,213||20,821|
|University of Illinois||81,468||96,151|
|University of Michigan||34,767||4,539,368|
|University of Minnesota||9,231||99,470|
|University of Wisconsin||11,874||539,208|
|University of Virginia||1,526||48,922|
Public Domain (~30%)
* Includes volumes opened through copyright review and rights holder permissions
HathiTrust conducted elections for a new Board of Governors  in March and established the Board, composed of both elected and appointed members,  in April. The proposal to create a Board of Governors was one of the proposals accepted by partners at the HathiTrust Constitutional Convention  in October 2011 (view all proposals ). The Board took the reins from an Executive Committee, which was established by the founding HathiTrust partners. A report on the Board’s first meeting  is posted in the Update on May 2012 Activities.
The Collections Committee released its report on duplicate volumes  in HathiTrust, recommending that HathiTrust retain all duplicate copies ingested into the repository for the time being, with periodic reassessment. The Committee also made progress on a process for responding to requests and offers to include additional materials in HathiTrust.
The Communications Working Group produced a Resources page for HathiTrust, containing overview documents, handouts, and guides created by HathiTrust partner libraries, the Communications Working Group, and non-partner sources. The working group released blog posts on HathiTrust's achievement of ten million volumes , full-text search enhancements , and, in collaboration with University of Michigan staff and the UX Advisory group, creating collections in HathiTrust . The Communications group launched a Pinterest account for HathiTrust, and submitted a briefing for the new Board of Governors.
The UX Advisory Group made recommendations on improvements to the PageTurner application, including the addition of the version date and new labeling to clarify when full-PDF download is available. The group collaborated with staff at Michigan and the Communications Working Group on a blog post about creating collections in HathiTrust , and began to focus attention on a project to redesign the HathiTrust home page.
A summary of the issues received by the User Support Working group is show in the table below. The working group made several improvements to its workflow for handling inquiries - those related to content quality especially, but in other areas as well. The group worked on recommendations for a future structure and process for responding to user inquiries, which is one of the responsibilities specified in its charge .
Non-partner Digital Deposit
|Access and Use||639|
Print on Demand
Full-PDF or e-copy requests
Data Availability and APIs
Reuse of content
Problems with login specifically
General Questions about Login
Partners setting up login
California Digital Library (CDL) staff loaded all records that are present in the current bibliographic system at the University of Michigan into Zephir, the new HathiTrust bibliographic management system, which is now in final stages of development. The CDL team performed load testing during the ingest of records, and worked to address discrepancies between records in the two systems. Staff created prototype exports of data that will be used to support the HathiTrust bibliographic catalog and "Hathifiles" inventory files. CDL worked with Michigan to finalize a record submission standard, and began to develop documentation and guidelines for submitting bibliographic records to Zephir, and documentation of the reports to be provided to institutions when records are loaded. Details about the submission standard, and additional information to be requested when records are submitted to HathiTrust, will be forthcoming.
The HTRC completed all the agreements necessary to receive Google-digitized materials from the HathiTrust repository. Staff from Indiana University worked with staff at the University of Michigan to begin transferring OCR text files for the more than 3 million public domain volumes in HathiTrust to the HTRC.
The HTRC released a report on its activities  from October 2011 to March 2012, detailing a variety of significant technical accomplishments, outreach activities, and strategic initiatives. The HTRC will be holding an “Uncamp ” at Indiana University this September. Please visit the HTRC webpage  and view the report above for further information about HTRC activities.
The IMLS Quality grant team completed page-level review (sampling within each volume) of three 1,000-volume samples from HathiTrust and reported initial findings (see the links under Quality Review on the results page  of the project website). The team developed a new whole-volume review interface to facilitate detection of errors that affect the entire volume (such as missing, duplicate, and out-of-order pages) as well as the severity of page-level errors. Project staff reviewed the first two 1,000-volume samples in this new interface in order to be able to compare results with page-level review.
Project staff completed physical review of ~90% of volumes in the first 1,000-volume sample and 60% of the second 1,000-volume sample to investigate correlation of physical book characteristics with errors in digitized volumes.
The grant team is beginning a sub-study to better describe errors in illustrative content in digitized volumes, and has begun to shift focus to the final, user research portion of the grant.
Staff at the University of Michigan worked on modifications to the HathiTrust PageTurner to display JATS XML and developed the first iteration of a tool that creates valid JATS XML from simple DOCX files. Staff also worked on specifications for a Submission Information Package for mPach content, began development of wireframes for the mPach Dashboard module (see a description of all mPach modules ), and composed design principles and requirements , as well as a project timeline .
Staff at the University of Michigan released several new advanced search features, including operations to search bibliographic metadata in combination with full-text search, limit results to specific publication years, languages, and original formats, revise advanced searches, and search with greater Boolean complexity. These features are described in the Update on April 2012 Activities  and a Perspectives from HathiTrust blog post .
Michigan staff undertook work to improve indexing of volumes in Chinese, Japanese and Korean, and improve relevance-ranking of results.
Staff at California Digital Library made significant progress on the development of a spelling-suggester feature for full-text search.
Staff at the University of Michigan developed functionality to allow users from partner institutions to be “automatically” logged in  to HathiTrust when following links from local institutional catalogs or other resources.
Michigan staff added 5 new fields to HathiTrust’s tab-delimited inventory files (view the files or a description ). The new fields include publication date, publication location, language, bibliographic format, and an indication of whether or not a volume has been identified as a U.S. federal government document.
Staff at Michigan developed security enhancements that, beginning October 1, will require developers to use OAuth 1.0 access keys to access the Data API and sign URLs passed to the API with a secret key. Staff also developed a Web client that employs a user’s login credentials as proxy for the keys (users can sign up for a University of Michigan “Friend Account”  to login). Users can register for keys or use the Web client by visiting http://babel.hathitrust.org/cgi/htdc . It is currently possible to use the keys and Web client; use will be required beginning October 1, 2012.
Also beginning October 1, 2012, the host “services.hathitrust.org” will be taken out of service. Calls to the Data API will need to use URLs such as the following (note the additional “cgi” in the path):
On May 1, support for legacy Data API URLs in the following form was removed:
URLs should be submitted to the API according to the current Data API schema  without the “api” path element
Michigan staff deployed a Data API security monitoring and reporting script that runs on a daily basis.
University of Michigan staff implemented processes to track accesses to in-copyright works in cases where access is permitted. The new processes provide a means for HathiTrust to detect problematic activity such as bulk downloading operations, which may, for example, indicate a compromised user account.
Michigan staff made a number of adjustments and improvements to the PageTurner application and interface. These included:
Michigan staff replaced two Web servers in the Michigan repository instance and moved to a new system of load balancing between the Indiana and Michigan repository instances. Load balancing is used routinely to mask maintenance or upgrade processes that require individual servers or an entire site to be taken offline.
Michigan staff installed new storage at the Indiana and Michigan sites. The storage was purchased to accommodate partner projections for content in 2012 and replace storage scheduled for retirement.
Reports of volumes in HathiTrust that are available for print on demand are available at http://www.hathitrust.org/pod_reports . A new report will be posted on the first of each month.
Michigan staff moved HathiTrust’s Drupal-based informational website and VuFind-based catalog from their initial hosting environments on Michigan library infrastructure to dedicated HathiTrust infrastructure. This move consolidates, and will greatly simplify HathiTrust Web development.
All papers and presentations are listed at http://www.hathitrust.org/papers .