Hopkins University Sheridan Libraries
the Digital Library Federation
I. Collections, services, and
III. Specific digital library
IV. Digital library publications,
policies, working papers, and other documents
I. Collections, services, and
Based at the
Sheridan Libraries, Maryland ArtSource is the collaborative
effort of eight cultural and arts organizations in Baltimore
dedicated to promoting art information resources that illuminate
Maryland art and artists. The site showcases Maryland’s
artistic and cultural heritage, and features:
selected art collections
biographies of Maryland artists
to art and photography collections at area colleges and
universities, libraries, museums, and historical societies.
Medieval Manuscripts – Le Roman de la
collection of Medieval manuscripts from four libraries has been
created to test ways of presenting manuscripts in digital format.
This collection enables scholars to conduct comparative research
on different versions of Le Roman de la Rose. Designed by
librarians, scholars and information technology specialists, the
Complete transcriptions of three manuscripts and the ability to
search the entire text of three manuscripts including searches
for word frequency, spelling variations, and rhyming
Images of each folio in 6 manuscripts of Le Roman de la
Rose, a principal Medieval text, from the collections of the
Walters Art Museum, the Getty Museum, Oxford University, and the
Ability to "page" through the manuscripts folio by folio and
access the transcription from the folio image screen.
Ability to view the same passage in all three manuscripts as a
result of a search query, and to view multiple folio images
and/or transcriptions on the same screen.
Ability to search the miniatures of three manuscripts using
Lester S. Levy
Collection of Sheet Music
The Lester S. Levy
Collection of Sheet Music contains 30,000 pieces of music and
focuses on popular American music spanning the period 1780 to
1960. Both the sheet music covers and the scores have been
digitized. Highlights include:
Images of the covers and each page of music published before 1923
and in the public domain
Digital workflow management system is currently under development
which is designed to reduce the amount of human labor for
large-scale digitization projects.
Optical Music Recognition (OMR) capability, allowing pages of
sheet music to be interpreted by a computer, is also being
developed within the framework of the Gamera system. OMR will
allow users to play the music on a MIDI synthesizer and will
enable the storage of large quantities of music in a database
which can then be searched with a music search engine and/or
analyzed with automatic musical analysis tools.
Management Project Overview
N.B. The Johns
Hopkins University Sheridan Libraries and the Library of Congress
are sponsoring the 4th annual International Conference on Music
Information Retrieval (ISMIR), to be held from Oct. 26 to Oct.
30, in Baltimore, Md.
The Center for
Educational Resources (CER) partners with faculty to extend their
instructional impact through the integration of digital
technologies and innovative teaching strategies. Located in the
library the Center's mission aligns with the evolving role of
university libraries as they advance from print-based
repositories to electronic collaboratories that enable
application of digital collections and networked services to new
approaches in instructional and scholarly communication. The
CER’s popular Technology Fellows Program awards mini-grants
to faculty and students projects that enhance pedagogy,
facilitate access to course materials, encourage active learning
and promote student/teacher collaboration
is a major, cross-disciplinary effort originating at Johns
Hopkins aimed both at making very high resolution, three
dimensional models of cuneiform tablets available to every
researcher's desktop and at producing an international standard
Unicode encoding for cuneiform text. Major goals include:
Production of a portable, non-contact, user-friendly, very high
resolution 3D surface scanner that can scan all facets of an
average cuneiform tablet in under a minute while implementing
scantime adaptive resolution down to 10 micrometers (i.e., 100
lines per millimeter - at least 4 times finer than currently
Creation of new computer algorithms to stitch gigabytes of raw
data together into coherent, virtual tablets for real-time,
multi-resolution rendering, self-shading, and manipulation by
researchers over fast Internet2 connections using software of our
(Comprehensive Access to Print Materials)
CAPM focuses on the
evaluation and development of a robotic system that will provide
real-time access, through a Web interface, to materials shelved
in off-site locations. Also collaborating on the project are
faculty from the Departments of Mechanical Engineering and
Geography and Environmental Engineering at Johns Hopkins and
faculty from the Economics Department at the University of
Colorado at Boulder.
The Gamera system
is a tool for developing document recognition applications,
though it is not designed to be a packaged document recognition
system. Developing a recognizer for Gamera is designed to be as
easy as possible, but still requires a considerable time
Information Technology Research, funded by the National Science
Foundation, will result in a fully automated robotic system to
on-demand and batch scanning of print materials (CAPM)
open-source software framework for document analysis that can be
trained and calibrated by Humanities scholars (Gamera).
system will include an inter-linked mechanism between CAPM and
Gamera. To evaluate different techniques for document analysis,
including Gamera, we will build a testbed of digital images.
Gamera will be designed according to the principles of usability
which include effectiveness, efficiency and satisfaction.
Services for a
Customizable Authority Linking Environment (SCALE)
Johns Hopkins and
Tufts University researchers are collaborating to provide two
broad classes of service to National Science Digital Library
automatic linking services that bind key words and phrases to
supplementary information; such automatic linking services are
already in place in the Perseus Digital Library
infrastructure to support automatic linking based on authority
control of names and terms and on links among different authority
lists such as thesauri, glossaries, encyclopedias, subject
hierarchies, and object catalogs.
Projects in progress in 2003:
Audio Archive Project (PDAAP)
The main goal of
the initial phase of the Peabody Digital Audio Archive project is
to digitize about one third of music in the Archives of the
Peabody Institute, which holds about 10,000 hours of tape
recordings of concerts and recitals at Peabody over the past
thirty years. Completion of the first phase will ensure
scalability and assist in determining the cost and feasibility of
digitizing the entire Archive and similar collections. The
long-term goal is to digitize the entire collection. All ensemble
recordings in the Archives are believed to be in the public
domain. Evaluation of repository, e-publishing, and digital
preservation technologies (Web site not available yet).
WebWare (commercial digital asset management system)
Specific Digital Library Challenges
Ubiquity does not
guarantee usability. “Click here.” Familiar
words and common interface elements contribute to the usability
of a Web site, but many other aspects are involved. The Sheridan
Libraries are engaged in evaluating the “usability”
of sites to determine how to create an interface that is
efficient, satisfying, and easy to use, to learn, and to
remember. Usability evaluation involves selecting some of the
various methods designed to glean this information and applying
them iteratively, from the early stages of a Web site's
development through its active use. Methods include:
Many of these
methods invite the library's "target users" to discuss their
needs and goals in using the library's Web resources and to
participate in sessions in which library staff observe their use
of a library Web site. In addition to providing usability
evaluation for various library web projects, research is also
conducted on digital library usability, with the goal of finding
the best methods for evaluating the usability of digital library
Digital library publications, policies, working papers, and other
Droettboom, M., I.
Fujinaga, and K. MacMillan. 2002. Optical music interpretation.
Submitted for consideration to Statistical, Structural and
Syntactic Pattern Recognition Conference.
Droettboom, M., K. MacMillan, I. Fujinaga, G. S. Choudhury, T.
DiLauro, M. Patton, and T. Anderson. 2002. Using Gamera for the
recognition of cultural heritage materials. Proceedings of the
Joint Conference on Digital Libraries, (JCDL). 11-17.
Choudhury, S., B. Hobbs, M. Lorie, and N. Flores. 2002. A
Framework for Evaluating Digital Library Services. D-Lib Magazine
Suthakorn, J., S. Lee, Y. Zhou, R. Thomas, G.S. Choudhury, and
G.S. Chirikjian. A Robotic Library System for an Off-Site
Shelving Facility. Proceedings of the 2002 IEEE International
Conference on Robotics and Automation (ICRA), Volume 4.
MacMillan, K., M. Droettboom, I. Fujinaga. 2001 Gamera: A
Python-based toolkit for Structured Document Recognition.
Submitted to the 10th International Python Conference.
Droettboom, M., I. Fujinaga, K. MacMillan, M. Patton, J. Warner,
G. S. Choudhury and T. DiLauro. 2001. Expressive and efficient
retrieval of musical data. Proceedings, International Symposium
on Music Information Retrieval. 173-8.
MacMillan, K., M. Droettboom and I. Fujinaga. 2001. Gamera: A
structured document recognition application development
environment. Proceedings, International Symposium on Music
Information Retrieval. 15-6.
Choudhury, G. S., T. DiLauro, M. Droettboom, I. Fujinaga, and K.
MacMillan. 2001. Strike up the score: Deriving searchable and
playable digital formats from sheet music. D-Lib Magazine 7
Droettboom, M., and I. Fujinaga. 2001. Interpreting the semantics
of music notation using an extensible and object-oriented system.
Proceedings of the Ninth International Python Conference.
Choudhury, S., T. DiLauro, M. Droettboom, I. Fujinaga, B.
Harrington and K. MacMillan. 2000. Optical Music Recognition
System within a Large-Scale Digitization Project. Proceedings,
International Symposium on Music Information Retrieval.
Choudhury, G. S., C. Requardt, I. Fujinaga, T. DiLauro, E. W.
Brown, J. W. Warner, and B. Harrington. 2000. Digital workflow
management: The Lester S. Levy digitized collection of sheet
music. First Monday 5 (6).
Brown, E. and J. Warner. Automated Name Authority Control.
Proceedings of the First ACM/IEEE Joint Conference on Digital
Libraries (JCDL). 21-22.
DiLauro, T., G.S. Choudhury, M. Patton, J. Warner, and E. Brown
(2001). Automated Name Authority Control and Enhanced Searching
in the Levy Collection. D-Lib Magazine, 7 (4).
Choudhury, G.S., M. Lorie, E. Fitzpatrick, B. Hobbs, G.
Chirikjian, A. Okamura, and N.E. Flores. 2001. Comprehensive
Access to Printed Materials (CAPM). Proceedings of the First
ACM/IEEE Joint Conference on Digital Libraries (JCDL).
Web/Usability Specialist: An Introduction to Web Accessibility
presented at the JHU Disability Coordinators' Spring Meeting,
Perspectives on Creating a Usability Methodology for Academic
DLs, panel at the European Conference on Digital Libraries,
for Reference Librarians, presented at the American Library
Association conference, June 2002.
An Introduction to
Usability, presented at the Maryland Library Association -
Academic and Research Libraries Division, September 2001.