Data Munging Tools in Preparation for RDF: Catmandu and LODRefine
Issue 30, 2015-10-15 Data Munging Tools in Preparation for RDF: Catmandu and LODRefine Data munging, or the work of remediating, enhancing and transforming library datasets for new or improved uses, has become more important and staff-inclusive in many library technology discussions and projects. Many times we know how we want our data to look, as well as how we want our data to act in discovery i
Query Translation in Europeana
Europeana – a database containing European digital cultural heritage objects – recently introduced query translation in order to aid users in searching the collections regardless of language. The user enters query terms, and the portal searches for those terms in multiple languages. This article discusses the technical details of query translation with the aim of assisting similar projects to impl
VIAFbot and the Integration of Library Data on Wikipedia
This article presents a case study of a project, led by Wikipedians in Residence at OCLC and the British Library, to integrate authority data from the Virtual International Authority File (VIAF) with biographical Wikipedia articles. This linking of data represents an opportunity for libraries to present their traditionally siloed data, such as catalog and authority records, in more openly accessib
Integrating Linked Data into Discovery
Although the Linked Data paradigm has evolved from a research idea to a practical approach for publishing structured data on the web, the performance gap between currently available RDF data stores and the somewhat older search technologies could not be closed. The combination of Linked Data with a search engine can help to improve ad-hoc retrieval. This article presents and documents the process
On Dentographs, A New Method of Visualizing Library Collections
Issue 16, 2012-02-03 On Dentographs, A New Method of Visualizing Library Collections A dentograph is a visualization of a library’s collection built on the idea that a classification scheme is a mathematical function mapping one set of things (books or the universe of knowledge) onto another (a set of numbers and letters). Dentographs can visualize aspects of just one collection or can be used to
Improving the presentation of library data using FRBR and Linked data
Issue 16, 2012-02-03 Improving the presentation of library data using FRBR and Linked data When a library end-user searches the online catalogue for works by a particular author, he will typically get a long list that contains different translations and editions of all the books by that author, sorted by title or date of issue. As an attempt to make some order in this chaos, the Pode project has a
HTML5 Microdata and Schema.org
On June 2, 2011, Bing, Google, and Yahoo! announced the joint effort Schema.org. When the big search engines talk, Web site authors listen. This article is an introduction to Microdata and Schema.org. The first section describes what HTML5, Microdata and Schema.org are, and the problems they have been designed to solve. With this foundation in place section 2 provides a practical tutorial of how t
Controlled Terms or Free Terms? A JavaScript Library to Utilize Subject Headings and Thesauri on the Web
Issue 15, 2011-10-31 Controlled Terms or Free Terms? A JavaScript Library to Utilize Subject Headings and Thesauri on the Web There are two types of keywords used as metadata: controlled terms and free terms. Free terms have the advantage that metadata creators can freely select keywords, but there also exists a disadvantage that the information retrieval recall ratio might be reduced. The recall
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Design reusable SHACL shapes and implement a linked data validation pipeline
Crafting Linked Open Data for Cultural Heritage: Mapping and Curation Tools for the Linked Jazz Project
Wrangling Electronic Resources: A Few Good Tools