Assessing Visualization Techniques for the Search Process in Digital Libraries

In this paper we present an overview of several visualization techniques to support the search process in Digital Libraries (DLs). The search process typically can be separated into three major phases: query formulation and refinement, browsing through result lists and viewing and interacting with documents and their properties. We discuss a selection of popular visualization techniques that have been developed for the different phases to support the user during the search process. Along prototypes based on the different techniques we show how the approaches have been implemented. Although various visualizations have been developed in prototypical systems very few of these approaches have been adapted into today's DLs. We conclude that this is most likely due to the fact that most systems are not evaluated intensely in real-life scenarios with real information seekers and that results of the interesting visualization techniques are often not comparable. We can say that many of the assessed systems did not properly address the information need of cur-rent users.Comment: 23 pages, 14 figures, pre-print to appear in "Wissensorganisation mit digitalen Technologien" (deGruyter

Copyright Contracts and Earnings of Visual Creators: A Survey of 5,800 British Designers, Fine Artists, Illustrators and Photographers

There is a common perception that digitisation has prompted changes in creative labour markets. In particular, it is widely assumed that exploiters insist on "grabbing rights" (i.e. broadly conceived assignments of rights), that visual artists are not able to negotiate, that they are paid less and less, and that they are compelled to waive their moral rights. This study suggests a much more equivocal picture. In place of a straightforward narrative of decline, the results of the survey suggest that in most fields there has been less change over the last decade than one might have expected: that, terms of exploitation are most often about the same. That is not to say that there are no discernible changes in particular occupations and media. Respondents and interviewees identify some important shifts. Perhaps surprisingly, it seems there are changes in practice that are, from the creator's perspective, both positive and negative. The most positive change is identified amongst the fine artists where half (50%) see their personal bargaining position as having improved, with only 6% perceiving a weakening. The most disturbing changes are in relation to photographers. About half of all photographers (49%) say their bargaining position has worsened, with only 22% reporting improvements. A significant percentage of photographers (40%) report an increase in assignments (compared with 6% who think they have decreased). Moreover, 24% report an increase in moral rights waivers (compared to 3% who identify a decrease), and a decline in the practice of attribution. 31% of photographers see attribution as decreasing over the last decade, and only 8% increasing. 28% say income from secondary use has decreased, while only 16% say it has decreased

Indexing, browsing and searching of digital video

Video is a communications medium that normally brings together moving pictures with a synchronised audio track into a discrete piece or pieces of information. The size of a “piece ” of video can variously be referred to as a frame, a shot, a scene, a clip, a programme or an episode, and these are distinguished by their lengths and by their composition. We shall return to the definition of each of these in section 4 this chapter. In modern society, video is ver

Digital libraries: What do users want?

This is the post-print version of the Article of the Article. The official published version can be accessed from the link below - Copyright @ 2006 EmeraldPurpose – The purpose of this study is to determine user suggestions for digital libraries' functionality and features. Design/methodology/approach – A survey was conducted as part of this study, in which users' suggestions for digital libraries were solicited, as well as their ranking opinions on a range of suggested digital library features. Findings – The study revealed that, regardless of users' information technology (IT) backgrounds, their expectations of digital libraries' functionality are the same. However, based on users' previous experiences with digital libraries, their requirements with respect to specific features may change. Practical implications – Involving users in digital library design should be an integral step in the process of building a digital library – in addition to the classic roles of evaluation and testing. Originality/value – In previous digital library user studies, users were involved implicitly (e.g. observed) or explicitly (e.g. diary notes). However, they were never asked to suggest digital library features or functionalities, as this was left to usability and domain experts. This study approached digital library design from a new perspective, giving users an opportunity to express their suggestions on future functionality and features of digital libraries. Moreover, in contrast to previous work, this study has explicitly taken into account the IT abilities of those interacting with a digital library

Introduction : user studies for digital library development

Introductory chapter to the edited collection on user studies in digital library development. Contains a general introduction to the topic and biographical sketches of the contributors.peer-reviewe

Bridging the gap between digital libraries and e-learning

Digital Libraries (DL) are offering access to a vast amount of digital content, relevant to practically all domains of human knowledge, which makes it suitable to enhance teaching and learning. Based on a systematic literature review, this article provides an overview and a gap analysis of educational use of DLs.The research work presented in this paper is partially supported by the FP7 Grant 316087 AComIn ”Advanced Computing for Innovation”, funded by the European Commission in the FP7 Capacity Programme in 2012-2016.peer-reviewe

CHORUS Deliverable 3.4: Vision Document

The goal of the CHORUS Vision Document is to create a high level vision on audio-visual search engines in order to give guidance to the future R&D work in this area and to highlight trends and challenges in this domain. The vision of CHORUS is strongly connected to the CHORUS Roadmap Document (D2.3). A concise document integrating the outcomes of the two deliverables will be prepared for the end of the project (NEM Summit)