Federated digital libraries are composed of autonomous, possibly heterogeneous information services distributed across the Internet. Federation provides users with a seamless, integrated view of the collected information. We are creating a federated system for the Networked Digital Library of Theses and Dissertations (NDLTD), an international consortium of universities, libraries, and other sup...

In this paper we briefly review current status of Web-Based Information Systems (WBIS) and present a number of different WBIS technologies and how they are being integrated during the ARHON project (Archiving, Annotation and Retrieval of Historical Documents). The project amounts to transforming a vast collection of OCR-resisting historical manuscripts belonging to the Vikelaia Municipal Librar...

EU-IST Integrated Project (IP) IST-2003-506826 SEKT Deliverable D4.3.1 (WP4) This deliverable describes a library of ontology mapping patterns, as well as a mapping language based on these patterns. This language, together with the mapping patterns, allows the user to more easily identify mappings and to describe mappings in an intuitive way. The mappings are organized in a library in a hierarc...

The difference between failure and success in developing a software-intensive system can often be traced to the presence or absence of clashes among the models used to define the system's product, process, property, and success characteristics. (Here, we use a simplified version of one of Webster's definitions of "model:" a description or analogy used to help visualize something. We include ana...

Access to large images in digital libraries is desirable from a preservation perspective and may even be a requirement in some domains, such as cartography. However, providing access to large images often poses a problem as a result of the size of the images as well as the limited screen real-estate for displaying the images. Even when these issues are addressed, there is a lack of evidence abo...

Large scale digitization projects have been conducted at digital libraries to preserve cultural artifacts and to provide permanent access. The increasing amount of digitized resources, including scanned books and scientific publications, requires development of tools and methods that will efficiently analyze and manage large collections of digitized resources. In this work, we tackle the proble...