http://dl.gi.de/handle/20.500.12116/30728 Tue, 21 Jul 2026 13:29:13 GMT 2026-07-21T13:29:13Z http://dl.gi.de:80/bitstream/id/b81a1df2-79a4-4f58-9aa0-da4371eae026/ http://dl.gi.de/handle/20.500.12116/30728 http://dl.gi.de/handle/20.500.12116/30751 Reasoning about the role of information systems in trusting decisions Perc, Primoz Godlevsky, Mikhail; Mayr, Heinrich C. The interest in the study of trust has grown steadily since 1990 in a wide range of scholarly disciplines. The science of information systems is no exception, since the concepts of information and trust are inseparably intermingled. Meanwhile, there exist numerous applications of trust – most commonly in the areas of security and content filtering - many of which have already successfully been tested in real-world environments. However, with some exceptions, relatively little has been done in laying the conceptual foundations for discussing the relationship between information systems and trust. In this paper we argue that especially in environments, characterized through low presence of institutional mechanisms, availability of information is an important factor in facilitating trusting decisions. Starting from the observations of the confidence building through information in the real world, we identify and classify the potentials of information systems in facilitating trusting decision in virtual environments such as the Internet. Mon, 01 Jan 2001 00:00:00 GMT http://dl.gi.de/handle/20.500.12116/30751 2001-01-01T00:00:00Z http://dl.gi.de/handle/20.500.12116/30752 Education and technology transfer in informational fields as the part of globalization process Makarenko, Alexander S. Godlevsky, Mikhail; Mayr, Heinrich C. It is discussed some educational and research aspects connected with informational technologies. Automation and control educational problems are considered. The issues of practical interest for Ukraine and Europe research and technological development discussed. Some new models with associative memory property are described. The description of new speciality ‘social informatics’ is proposed as the example of implementing the post-industrial society needs. Mon, 01 Jan 2001 00:00:00 GMT http://dl.gi.de/handle/20.500.12116/30752 2001-01-01T00:00:00Z http://dl.gi.de/handle/20.500.12116/30750 A technique for information system integration Greco, Sergio; Pontieri, Luigi; Zumpano, Ester Godlevsky, Mikhail; Mayr, Heinrich C. Nowadays, a central topic in database science is the need of an integrated access to large amounts of data provided by various information sources whose contents are strictly related. Often information sources have been designed independently for autonomous applications, so they may present several kinds of heterogeneity. Particularly hard to manage is the semantic heterogeneity, which is due to schema and value inconsistencies. In this paper, we focus our attention mainly on the inconsistency which arises when conflicting instances related to the same concept and possibly coming from different sources are integrated. First, we introduce an operator, called Merge Operator, which allows us to combine data coming from different sources, preserving the information contained in each of them. Then, we present a variant of this operator, the Extended Merge Operator, which associates the integrated data with some information about the process by which they have been obtained. Finally, in order to manage conflicts among integrated data, we briefly present a technique for computing consistent answers over inconsistent databases. Mon, 01 Jan 2001 00:00:00 GMT http://dl.gi.de/handle/20.500.12116/30750 2001-01-01T00:00:00Z http://dl.gi.de/handle/20.500.12116/30749 Distributed objects performance optimization and modeling Juric, Matjaz B.; Rozman, Ivan; Hericko, Marjan; Welzer, Tatjana; Gyorkos, Jozsef Godlevsky, Mikhail; Mayr, Heinrich C. This paper is focused on the performance analysis, comparison and optimization of distributed object middleware for Java 2: RMI (Remote Method Invocation), CORBA IDL (Interface Definition Language) and RMI-IIOP (Remote Method Invocation on Internet Inter-ORB Protocol). The paper presents the following contributions to the research on distributed object performance. First, a detailed performance analysis is provided with the comparison. These results help to understand how the models perform. Second, an overhead analysis has been done, which explains why there are differences in performance. Third, optimizations and improved performance for RMI-IIOP and CORBA IDL are presented. These show considerably better performance in all areas compared to the original versions. Mon, 01 Jan 2001 00:00:00 GMT http://dl.gi.de/handle/20.500.12116/30749 2001-01-01T00:00:00Z