Papers by Titia van der Werf

Open Content Activities in Libraries: Same Direction, Different Trajectories—Findings from the 2018 OCLC Global Council Survey
This report is the culmination of efforts from across the OCLC membership to answer the question ... more This report is the culmination of efforts from across the OCLC membership to answer the question raised at a Global Council (GC) meeting: "What is the status of open access and open content in libraries across the globe?" The underlying open content survey was conducted in 2018-2019 by the OCLC Global Council in partnership with staff from OCLC Research. The survey's broad definition of library open content activities and global scope offers a new perspective on open content activities within the library community as it uncovers and highlights the maturity and versatility of these activities.Open Content Activities in Libraries: Same Direction, Different Trajectories—Findings from the 2018 OCLC Global Council Survey synthesizes survey findings on current and future planned open content activities and areas of investment for a large cohort of research and university libraries. This subgroup of 511 respondents from 69 countries is highly involved in open content activities (97%), and the overwhelming majority are stepping up their activities and planning new ones. Overall, the figures suggest a future increase in involvement of 10-18% across all open content activities. Future growth areas that indicate likely new emerging services are the management of open research data and interactions with (digitized) open collections through statistical and machine learning techniques
This presentation was made at the COAR 2019 Annual Meeting & General Assembly, Lyon (France)
Title The Deposit System for Electronic Publications: A Process Model
Copyright nedlib consortium This study is jointly funded by the European Commission's Telema... more Copyright nedlib consortium This study is jointly funded by the European Commission's Telematics for Libraries Programme.

In this position paper, we describe a number of methodological and philosophical challenges that ... more In this position paper, we describe a number of methodological and philosophical challenges that arose within our interdisciplinary Digi-tal Humanities project CATVIS, which is a collaboration between applied geometric algorithms and visualization researchers, data scientists working at OCLC, and philosophers who have a strong interest in the methodological foundations of visualization research. The challenges we describe concern aspects of one single epistemic need: that of methodologically securing (an increase in) trust in visualizations. We discuss the lack of ground truths in the (digital) humanities and argue that trust in visualizations requires that we evaluate visualizations on the basis of ground truths that humanities scholars themselves create. We further argue that trust in visualiza-tions requires that a visualization provides provable guarantees on the faithfulness of the visual representation and that we must clearly communicate to the users which part of the visuali...
In this presentation Titia van der Werf will give a brief update of what OCLC Research is doing i... more In this presentation Titia van der Werf will give a brief update of what OCLC Research is doing in the linked data space. She will discuss some of the experiments which data scientists at OCLC Research are carrying out: mining WorldCat and liberating entities from MARC data; trying out the challenges of publishing, consuming and visualizing linked data resources; extending the scope of authority control and leveraging the wealth of multi-lingual bibliographic structures. She will share the results of an international survey which her colleague Karen Smith-Yoshimura carried out among linked data implementers in the library community. Her presentation will take you through a journey that has only begun and that will require concerted and cumulative effort – because the Web of data doesn’t organize itself.
DONOR en Dublin Core Metadata
In een vorig artikel1 in Informatie Professional, precies twee jaar geleden, schreef ik dat infor... more In een vorig artikel1 in Informatie Professional, precies twee jaar geleden, schreef ik dat informatiebeheer op het web in toenemende mate een kwestie van bibliografische beheersing wordt. Een betere beheersing van webinformatie vergemakkelijkt de ontsluiting ervan en bij dit alles spelen metadata een cruciale rol. Het is algemeen bekend dat het zoeken naar relevante informatie op het web niet altijd meevalt. Uit een landelijk gebruikersonderzoek,2 verricht door de KB in 1997 ten behoeve van het IWI-project ‘Ontsluiting van Internetbronnen’, is duidelijk naar voren gekomen dat studenten en wetenschappers op veel problemen stuiten wanneer zij informatiebronnen op het web raadplegen.
Door de onstuimige ontwikkeling van het World Wide Web en de snelle toename van het aantal ‘netwo... more Door de onstuimige ontwikkeling van het World Wide Web en de snelle toename van het aantal ‘networked information resources’ op het Internet, groeit het bewustzijn dat informatiebeheer op het Internet in toenemende mate een kwestie van bibliografische beheersing wordt. ‘It is recognised that in an indefinitely large resource space, effective management of networked information will increasingly rely on effective management of metadata.’1 Hiertoe zijn een aantal initiatieven genomen, zoals de OCLC/NCSA Metadata Workshop gehouden in maart 1995. Dit discussieplatform, waar ook bibliothecarissen aan deelnemen, belegt nu jaarlijkse ‘consensus building’- bijeenkomsten in een poging metadata op het Web te standaardiseren.
Het opzetten van een digitaal depot
In NEDLIB ontwikkelen Europese nationale depotbibliotheken een gezamenlijke aanpak voor de bouw v... more In NEDLIB ontwikkelen Europese nationale depotbibliotheken een gezamenlijke aanpak voor de bouw van digitale depots. Dit doel ligt in het verlengde van de nationale taakstelling van depotbibliotheken om elektronische publicaties te bewaren en beschikbaar te stellen, nu en in de toekomst. De Koninklijke Bibliotheek is projectleider van NEDLIB. Titia van der Werf-Davelaar geeft een overzicht van de behaalde resultaten.
Proceedings of the 5th Information Interaction in Context Symposium, 2014
Cultural heritage materials are increasingly being made available through standard search facilit... more Cultural heritage materials are increasingly being made available through standard search facilities. However, it is challenging to automatically organize these materials in a way that is well aligned with users' specific interests. We report on the development of a social bookmaking system to collect human annotations that are used to measure the performance of three different clustering algorithms. We find that there is a discrepancy between the latent structure present in the data and the clusters annotated by humans. However, it is difficult to detect such discrepancies explicitly.

Personal Access to Library Services by Use of Existing Technologies
Resource Sharing & Information Networks, 1994
ABSTRACT Personal Information Technology (PIT) is an outgrowth of the consumer electronics market... more ABSTRACT Personal Information Technology (PIT) is an outgrowth of the consumer electronics market and the increasing trend toward digitized information. PIT is the only way to prevent the concentration of information resources by providing the worldwide and cheap availability of personal information and telecommunications systems. PIT will help libraries provide personal access to information sources for their end users. These users will have personal computers and access to the public telephone network. Libraries began by automating their housekeeping functions (cataloging, circulation, and acquisitions). They now provide public access to CD-ROM products and online databases with document delivery to supply wanted information. They have set up networks for improved interlibrary loan. End users may also want access, and the service support structure is more important than having the latest technology. In today's world, the policy framework for libraries must take into account end user access to computer-based library services.
Lecture Notes in Computer Science, 2013
Huge amounts of cultural content have been digitised and are available through digital libraries ... more Huge amounts of cultural content have been digitised and are available through digital libraries and aggregators like Europeana.eu. However, it is not easy for a user to have an overall picture of what is available nor to find related objects. We propose a method for hierarchically structuring cultural objects at different similarity levels. We describe a fast, scalable clustering algorithm with an automated field selection method for finding semantic clusters. We report a qualitative evaluation on the cluster categories based on records from the UK and a quantitative one on the results from the complete Europeana dataset.
International Information Gateway Collaboration
D-Lib Magazine, 1999
1.2 Background IMesh is a loose association of subject gateway activity. There is a mailing list ... more 1.2 Background IMesh is a loose association of subject gateway activity. There is a mailing list [IMesh Mailbase], some informational web pages [IMesh website], and some collaborative activity.'IMesh'itself is a contraction of'international mesh'and is suggestive of mutually supportive activity. The term was proposed by Nicky Ferguson. The idea for an IMesh Workshop arose from discussions at the ECDL'98 Conference in Crete [Wiseman, 98]. Norman Wiseman and Chris Rusbridge, of the Joint Information Systems Committee [JISC ...
Digital Dilemma: Intellectual Property [and] The ERCIM Technical Reference Digital Library [and] International Information Gateway Collaboration [and] The Standards Fora for Online Education
D-Lib Magazine, Dec 1, 1999
Abstract: Includes four articles that discuss the impact of the emerging digital information infr... more Abstract: Includes four articles that discuss the impact of the emerging digital information infrastructure on intellectual property; the implementation of a digital library for a European consortium of national research institutions; an international information gateway collaboration; and developing standards for the description and sharing of educational resources in an online environment.(LRW)

Documentary Heritage in the Digital Age: Born Digital, Being Digital, Dying Digital
The UNESCO Memory of the World Programme, 2019
With connectivity spreading across the globe, online culture is becoming globally predominant, an... more With connectivity spreading across the globe, online culture is becoming globally predominant, and the expanding digital universe is turning into the most powerful human memory-recording machine of all time. Never before in history was there a chance to capture our lives – from the ordinary to the extraordinary – so completely and accurately. Never was there a time when documentary heritage could reflect such a rich, high-fidelity memory of the peoples of the world. Drawing on earlier essays about digital preservation and the nature of digital heritage, the authors argue that preserving an externalised, high-fidelity digital memory is feasible and that it will give future generations the liberty to decide what is of value to them, instead of us doing that and introducing bias in the digital heritage. They observe that much in the digital universe is transient because it is not taken care of intentionally. For too long has the need for a digital memory in this space been ignored – both the ability to keep digital information for short-term memory purposes and the commitment to safeguard digital legacy in the longer term. With examples of digital archiving initiatives, such as the Internet archive, the Twitter archive and e-government archives, the authors point to some of the weaknesses and propose to fully archive digital live ecosystems in real time, as cultural monuments.
International information gateway collaboration: report of the first Imesh framework workshop
D-lib Magazine, 1999
1.2 Background IMesh is a loose association of subject gateway activity. There is a mailing list ... more 1.2 Background IMesh is a loose association of subject gateway activity. There is a mailing list [IMesh Mailbase], some informational web pages [IMesh website], and some collaborative activity.'IMesh'itself is a contraction of'international mesh'and is suggestive of mutually supportive activity. The term was proposed by Nicky Ferguson. The idea for an IMesh Workshop arose from discussions at the ECDL'98 Conference in Crete [Wiseman, 98]. Norman Wiseman and Chris Rusbridge, of the Joint Information Systems Committee [JISC ...
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Papers by Titia van der Werf