Miriam Blake

Metadata and reference linking

Abstract Reference linking is a broad term that generally means linking from one information object to another. The specific types of linking which have been addressed in most detail in recent years are those having to do with the links between journal articles. These would include the links from citation metadata to the electronic full-text article and links from references following an article (the bibliography) directly to the referred citation and/or article. A basic concept is that there must be a way to identify the work to be ‘linked-to.’ A second concept is that in order to ‘link-to’ an outside system, there must be an identifiable syntax, which often includes an identifier, for creating a query into that system to find the correct article. In this paper we focus on experiences in linking from an A&I database record to full-text and linking from a bibliography to full-text. Accomplishing this required implementing a system that uses metadata to determine the identifiers and the required elements for various ‘link-to’ syntaxes across disparate systems.

“At scale” author name matching with Hadoop/MapReduce

Purpose – The purpose of this paper is to describe a process for extracting and matching author names from large collections of bibliographic metadata using the Hadoop implementation of MapReduce. It considers the challenges and risks associated with name matching on such a large‐scale and proposes simple matching heuristics for the reduce process. The resulting semantic graphs of authors link names to publications, and include additional features such as phonetic representations of author last names. The authors believe that this achieves an appropriate level of matching at scale, and enables further matching to be performed with graph analysis tools.Design/methodology/approach – A topically‐focused collection of metadata records describing peer‐reviewed papers was generated based upon a search. The matching records were harvested and stored in the Hadoop Distributed File System (HDFS) for processing by hadoop. A MapReduce job was written to perform coarse‐grain author name matching, and multiple papers ...

Collaborative eScience libraries

In the context of collaborative eScience, digital libraries are one of many distributed, interoperable resources available to scientists that facilitate both human and machine collaboration: machine collaboration in the form of standards such as the Open Archives Initiative Protocol for Metadata Harvesting and human collaboration in the form of collaborative workspaces. This paper describes a set of collaborative workspaces created at the Los Alamos National Laboratory Research Library, initial patterns of use, and additional user requirements determined based on these initial patterns of use.

Technical Report Interchange through Synchronized OAI Caches

The Technical Report Interchange project is a cooperative experimental effort between NASA Langley ResearchCen ter, Los Alamos National Laboratory, Air Force Research Laboratory, Sandia National Laboratory and Old Dominion University to allow for the integration of technical reports. This is accomplished using the Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH) and having each site cache the metadata from the other participating sites. Each site also implements additional software to ingest the OAI-PMH harvested meta-data into their native digital library (DL). This allows the users at each site to see an increased technical report collection through the familiar DL interfaces and take advantage of whatever valued added services are provided by the native DL.

Just-in-case linking vs. just-in-time-linking—the Library Without Walls experience

The Library Without Walls (LWW) project began integrating full text links into citation databases early 1997. A local SICI database was developed to link between locally available full-text and citations in local databases. These could be termed just-in-case links as they are a predetermined set of URLs which link to specific full-text materials. Linking to full-text journals at external sites was the next step. A methodology was used to anticipate the URL for citations which could link to external full-text. As more types of electronic material became available, the presentation of different types of links became possible. A new approach to allow for a broad array of linking types (between citations and full-text, between varying databases and local holdings, from one database to another, etc.), and to allow for more customized linking based on the needs of the incoming user, is now being developed. This poster will cover how LWW has created a hybrid of just-in-case links with just-in-time links (links based on type and location of materials and on user needs); the origin of just-in-time links (Special Effects by Herbert Van de Sompel University of Ghent); how the system works at Los Alamos; and how LWW customers have reacted to the hybrid system.

Evaluation of the Assessing Institutional Digital Assets (AIDA) Toolkit

Libraries are becoming more involved in the complex task of managing the digital assets created by members of their institutions. Many tools have been created to help librarians understand and solve the problems associated with this task. One of these tools is the Joint Information Systems Committees Assessing Institutional Digital Assets (AIDA) toolkit, which is designed to help institutions assess their current readiness and ability to manage digital assets. This article provides a review and evaluation of the AIDA toolkit as used by Los Alamos National Laboratory Research Library.