In the past two decades, the use of digital libraries (DLs) has grown significantly. Accordingly, questions about the utility, usability and cost of DLs have started to arise, and greater attention is being paid to the quality evaluation of this type of information system. Since DLs are destined to serve user communities, one of the main aspects to be considered in DL evaluation is the user’s o...

PURPOSE To evaluate the relationship between electrophysiological, psychophysical, and structural measurements in normal and glaucomatous eyes and to test the hypothesis that there is a continuous structure-function relationship between ganglion cell numbers and visual field sensitivity. METHODS Thirty-four normal subjects and 40 patients with glaucoma were examined with the pattern electrore...

Recent years have seen a boom in the creation and development of ontologies. Unfortunately, the maintenance of such ontologies is an error-prone process. On one side, it is in general unrealistic to expect a developer to be simultaneously a domainand an ontology-expert. This leads to problems when a part of the domain is not correctly understood, or when, although correctly understood, is trans...

introduction: the goal of integration of digital libraries (dl) is to utilize various autonomous dls in concert to provide knowledge from such island-dls. integrated digital libraries (idls) appeared after the emergence of dls in 1990s, invention of integrated information systems from 2000 and consolidation of them during the recent decade. the ministry of health and medical education (mhme) of...

Fuzzy Description Logics (fuzzy DLs) allow to describe structured knowledge with vague concepts. Unlike classical DLs, in fuzzy DLs an answer is a set of tuples ranked according to the degree they satisfy the query. In this paper, we consider fuzzy DL-Lite. We show how to compute efficiently the top-k answers of a complex query (i.e. conjunctive queries) over a huge set of instances.

This position paper will describe the intended use of De. scription Logics (DLs) in a particular conceptual information retrieval system, the Condorcet system. First the Condorcet system is introduced, focusing on knowledge representational and reasoning aspects and criteria. Second, based on these requirements, we will argue that DLs are particularly promising candidates for knowledge represen...