The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This article presents findings from approximately 150 users who created instructional projects using educational digital library resources. One hundred of these users were teachers participating in professional development workshops on the topic of digital libraries. Our iterative approach to tool and workshop development and implementation was based on a framework that characterizes several input,...
This paper explores two ways to help students locate most relevant resources in educational digital libraries. One method gives a more comprehensive access to educational resources, through multiple pathways of information access, including browsing and information visualization. The second method is to access personalized information through social navigation support. This paper presents the details...
Previous research on using digital libraries in science classrooms indicated that middle school students tend to passively find answers rather than actively make sense of information they find in digital libraries. In response to this challenge, we designed a scaffolded software tool, the Digital IdeaKeeper, to support middle school students in making sense of digital library resources during online...
This paper describes G-Portal, a geospatial digital library of geographical assets, providing an interactive platform to engage students in active manipulation and analysis of information resources and collaborative learning activities. Using a G-Portal application in which students conducted a field study of an environmental problem of beach erosion and sea level rise, we describe a pilot study to...
This paper introduces a new framework for building digital library collections and contrasts it with existing systems. It describes a significant new step in the development of a widely used open-source digital library system, Greenstone, which has evolved over many years. It is supported by a fresh implementation, which forced us to rethink the entire design rather than making incremental improvements...
As an increasing number of digital library projects embrace the harvesting of item-level descriptive metadata, issues of description granularity and concerns about potential loss of context when harvesting item-level metadata take on greater significance. Collection-level description can provide valuable context for item-level metadata records harvested from disparate and heterogeneous providers....
Significant barriers deter Web page designers and developers from incorporating dynamic content from Web services into their page designs. Web services typically require designers to learn service protocols and have access to and knowledge of dynamic application servers or CGI in order to incorporate dynamic content into their pages. This paper describes a framework for embedding discovery services...
The process of authoring document-centric XML documents in humanities disciplines is very different from the approach espoused by the standard XML editing software with the data-centric view of XML. Where data-centric XML is generated by first describing a tree structure of the encoding and then providing the content for the leaf elements, document-centric encodings start with content which is then...
This paper describes an ongoing collaborative effort across digital library and scientific communities in the UK to improve access to research data. A prototype demonstrator service supporting the discovery and retrieval of detailed results of crystallography experiments has been deployed within an Open Archives digital library service model. Early challenges include the understanding of requirements...
Advances in both technology and publishing practices continue to increase the quantity of scientific literature that is available electronically. In this paper, we introduce the information synthesis process, a new approach that enables scientists to visualize, explore, and resolve contradictory findings that are inevitable when multiple empirical studies explore the same natural phenomena. Central...
In this paper we describe the methods, goals and early findings of the research endeavor 'Comparative Interoperability Project' (CIP). The CIP is an extended interdisciplinary collaboration of information and social scientists with the shared goal of understanding the diverse range of interoperability strategies within information infrastructure building activities. We take interoperability strategies...
The Genescene development team has constructed an aggregation interface for automatically-extracted biomedical pathway relations that is intended to help researchers identify and process relevant information from the vast digital library of abstracts found in the National Library of Medicine's PubMed collection. Users view extracted relations at various levels of relational granularity in an interactive...
While it would seem that digital video libraries should benefit from access mechanisms directed to their visual contents, years of TREC video retrieval evaluation (TRECVID) research have shown that text search against transcript narrative text provides almost all the retrieval capability, even with visually oriented generic topics. A within-subjects study involving 24 novice participants on TRECVID...
This research assessed the effectiveness of selected interface tools in helping people respond to classic information tasks with Webcasts. Rather than focus on a classic search/browse task to locate an appropriate Webcast to view, our work takes place at the level of an individual Webcast to assess interactivity within the contents of a single Webcast. The questions guiding our work are: (1) Which...
The MIDAS project is developing infrastructure and policies for optimal display of digital information on devices with diverse characteristics. In this paper we present the preliminary results of a study that explored the effects of scaling and color-depth variation in digital photographs on user perceptions of similarity. Our results indicate general trends in user preferences and can serve as guidelines...
When users seek to find specific resources in a digital library, they often use the library catalog to locate them. These catalog queries are defined as known item queries. As known item queries search for specific resources, it is important to manage them differently from other search types, such as area searches. We study how to identify known item queries in the context of a large academic institution's...
An ever-increasing amount of information on the Web today is available only through search interfaces: the users have to type in a set of keywords in a search form in order to access the pages from certain Web sites. These pages are often referred to as the hidden Web or the deep Web. Since there are no static links to the hidden Web pages, search engines cannot discover and index such pages and thus...
In this paper we discuss the architecture of a tool designed to help users develop vertical search engines in different domains and different languages. The design of the tool is presented and an evaluation study was conducted, showing that the system is easier to use than other existing tools
The University of California, Berkeley and the University of Liverpool are developing an information retrieval and digital library system (Cheshire3) that operates in both single-processor and "Grid" distributed computing environments. This paper discusses the architecture of the system and how it performs digital library tasks in a Grid computing environment
The Digital Anthropology Resources for Teaching (DART) project integrates the content acquisition and cataloging initiatives of a federated digital repository with the development of scholarly publications and the creation of digital tools to facilitate classroom teaching. The project's technical architecture and unique publishing model create a teaching context where students move easily between...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.