Enhancing access to the levy sheet music collection: reconstructing full-text lyrics from syllables

The goal of the Lester S. Levy Sheet Music Collection, Phase Two project is to develop tools, processes, and systems that facilitate collection ingestion through automated processes that reduce, but not necessarily eliminate human intervention[1]. One of the major components of this project is an optical music recognition (OMR) system[2] that extracts musical information and lyric text from the page images that comprise each piece in a collection. It is often the case, as it is with the Levy Collection, that lyrics embedded in music notation are written in a syllabicated form so that each syllable lines up with the note or notes to which it corresponds. Searching the syllabicated form of words, however, would be counterintuitive and cumbersome for end-users. This paper describes the evolution of a tool that, using a simple algorithm, rebuilds complete words from lyric syllables and, in ambiguous cases, provides feedback to the collection builder. This system will be integrated into the workflow of the Levy Sheet Music Collection, but has broad applicability for any project ingesting musical scores with lyrics

Optical Music Recognition System within a Large-Scale Digitization Project

An adaptive optical music recognition system is being developed as part of an experiment in creating a comprehensive framework of tools to manage the workflow of large scale digitization projects. This framework will support the path from physical object and/or digitized material into a digital library repository, and offer effective tools for incorporating etadata and perusing the content of the resulting multimedia objects

Digital Data Preservation and Curation: A Collaboration Among Libraries, Publishers, and the Virtual Observatory

Digital Data Preservation and Curation: A Collaboration Among Libraries, Publishers, and the Virtual Observatory. Astronomers are producing and analyzing data at ever more prodigious rates. NASA's Great Observatories, ground-based national observatories, and major survey projects have archive and data distribution systems in place to manage their standard data products, and these are now interlinked through the protocols and metadata standards agreed upon in the Virtual Observatory. However, the digital data associated with peer-reviewed publications is only rarely archived. Most often, astronomers publish graphical representations of their data but not the data themselves. Other astronomers cannot readily inspect the data to either confirm the interpretation presented in a paper or extend the analysis. Highly processed data sets reside on departmental servers and the personal computers of astronomers, and may or may not be available a few years hence. We are investigating ways to preserve and curate the digital data associated with peer-reviewed journals in astronomy. The technology and standards of the VO provide one component of the necessary technology. A variety of underlying systems can be used to physically host a data repository, and indeed this repository need not be centralized. The repository, however, must be managed and data must be documented through high quality, curated metadata. Multiple access portals must be available: the original journal, the host data center, the Virtual Observatory, or any number of topically-oriented data services utilizing VO-standard access mechanisms

Choosing the components of a digital infrastructure

Choosing the components of a digital infrastructure by Tim DiLauro This paper is based on a talk of the same name given at the IMLS–sponsored Web–Wise 2004 conference.The purpose of this paper — as with the talk before it — is to highlight some issues and help inform the choices associated with developing digital environments within a single institution or among many. While the bulk of this discussion focuses on digital repositories as a key component of the digital infrastructure, persistent identifiers, assumptions surrounding digital preservation, and integration of digital library services are also discussed

Choice and Empowerment

Given the diversity of software now populating the eLearning environment, the authors pose the question whether end users, and IT managers, are better served by service-oriented architectures or fully integrated system architectures for their campus infrastructure. They explore the question, paying special attention to an environment of heterogeneous repositories and service modules and the growing demands proposed for these components of the eLearning landscape