P063 - ISTA 2005 - Information Systems Technolopgy and its Applications
Auflistung P063 - ISTA 2005 - Information Systems Technolopgy and its Applications nach Erscheinungsdatum
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- KonferenzbeitragOntological document filtering(Information systems technology and its applications, ISTA' 2005, 2005) Abramowicz, Witold; Szymanski, JacekRecent development in business has led to new demands for information. On the other hand the spread of Internet based information services has grown to such extent that it is often impossible to find relevant information in short time. Term based information filtering systems often are not efficient enough. Therefore a need for more efficient mechanisms has arisen. This article discusses the requirements for ontological document filtering for the purposes of Information Oriented Workflow.
- KonferenzbeitragSimulating user behaviour – a proposed approach to improving web information systems(Information systems technology and its applications, ISTA' 2005, 2005) Nguyen, Phuongmodelling and simulating user's behaviours could be an approach that aids web developers to improve the utility of Web-based Information Systems (WIS). This paper presents a conceptual model of WIS-user behaviours. The intention of simulating those behaviours presented in the model is also stated.
- KonferenzbeitragOn the impact of document representation on classifier performance in e-mail categorization(Information systems technology and its applications, ISTA' 2005, 2005) Berger, Helmut; Köhle, Monika; Merkl, DieterThis paper provides an analysis of multi-class e-mail categorization performance. In order to investigate this issue, the quality of various classification algorithms based on two distinct document representation formalisms is compared. In particular, both a standard word-based document representation as well as a character n-gram document representation is used. The latter is regarded as highly noise-tolerant and was originally proposed for automatic language identification and as a convenient means for producing compact document indices. Furthermore the impact of using available e-mail specific meta-information on classification performance is explored and the findings are presented.
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- KonferenzbeitragA concept of configuring flexible application systems for business and administration processes(Information systems technology and its applications, ISTA' 2005, 2005) Grollius, Tobias; Ortner, ErichBusiness processes change with time. Component-based application systems offer the flexibility to effectively support frequently changing processes as they can be easily assembled of component variants most suitable to accomplish a task in a certain moment. This paper introduces two extreme types of configuring flexible application systems: pre-configured application systems and just-in-time configured application systems. As a prerequisite to component-based applications, a component repository and its meta schema are presented. Workflow Management Systems are proposed to control – beside the business processes – the construction processes.
- KonferenzbeitragUsing XML to support media types(Information systems technology and its applications, ISTA' 2005, 2005) Kirchberg, Markus; Schewe, Klaus-Dieter; Tretiakov, AlexeiThe eXtensible Markup Language (XML) has drawn significant attention in research and practice of databases and web-based information systems. At the same time, lots of work has been investigated in conceptual modelling for web-based information systems which is at most loosely coupled with XML. One such research direction has led to the theory of media types, which has proven itself to be useful for the design and development of large and maintainable web-based information systems. The research reported in this article investigates how XML and the theory of media types could be brought together, i.e. how XML could be used to support media types. It turns out that some of the striking features of media types are not yet well supported by XML. Therefore, severals extensions to XML such as subelements, update operations, schema updates, views, media elements and adaptivity will be suggested in this article in order to close this gap.
- KonferenzbeitragAutomated web service composition methods and tradeoffs(Information systems technology and its applications, ISTA' 2005, 2005) Stumptner, MarkusThis paper examines the use of constraint-based configuration for the composition of Web Services. Web Services are widely assumed to represent the basis for the next generation of flexible distributed applications in B2B E-commerce, and the composition of complex applications from individuals services has attracted much attention. We show how this composition problem can be addressed at increasing levels of semantic content embedded in the description of services, moving from purely manual composition to describing service matching as a configuration problem that can be solved using constraint-based methods. We examine the restrictions imposed by Se- mantic Web ontology languages and providing a succinct and high level mechanism for imposing the different boundary conditions resulting from the multilayered application environment. We give an example showing the configuration process for a simple example problem, discuss the ramifications of the full composition problem, and describe the resulting system architecture.
- KonferenzbeitragEngineering design performance management – from alchemy to science through ISTa(Information systems technology and its applications, ISTA' 2005, 2005) Matzke, Wolf-EkkehardThe drive for performance is omnipresent in modern society. We believe this to be true, although we only have a vague idea of what “performance” really means. The demand for management is omnipresent in modern society. We accept this to be true, although management theory is a science barely out of its infancy (Who wishes to be supervised by an infant?). Performance management is considered to be the need for the hour in modern society. We are told this is true, although we feel that we are trying to cope with something that we have very little comprehension of. Engineering is the omnipresent backbone of modern society. We experience this to be true, although we acknowledge that design is least as much an art as it is a science, a world where uncertainty rules. The impact of Information Society Technology (IST) is omnipresent in modern society. We understand this to be true; although we know that there is no point in automating something we don't understand. Somewhat ironically, one could conclude that Engineering Design Performance Management (EDPM) is about the challenge to handle the uncertain and appraise the unknown. Not to forget about IST embarked on a mission to automate everything it possibly could to pretend that there are ready answers. This is like alchemy, but for performance. Alchemy hovered between worlds. So does contemporary performance management hovering between fiction and reality. Alchemists proposed to use the philosopher's stone (materia prima), a mysterious, unknown substance that they believed to have the power to transmute base metals into gold. So does contemporary performance management by hailing IST as its “Magnus Opus”. Without a doubt, it is high time to rebuild a firm foundation of performance management. We need a consistent framework addressing the relevant aspects of performance management from the abstract level to the concrete level. Only than IST will be able to unfold its full potential, and deliver on its promises. The strategic potential of IST does not lie in empty automation that enforces unrealistic and oppressive processes. It lies in enabling better decision making in a highly complex environment of change, uncertainty, risk, and urgency.
- KonferenzbeitragTravel recommendations in a mobile tourist information system(Information systems technology and its applications, ISTA' 2005, 2005) Hinze, Annika; Junmanee, SaijaiAn advanced mobile tourist information system delivers information about sights and events on a tourists travel route. The system should be personalized in its interaction with the tourist. Data that can be used for personalization are: the tourists interest profile, an analysis of their travel history, and the tourists feedback about sights. Existing mobile information systems for tourists do not tailor their information delivery to the tourists interests. In this paper, we propose the use of personalised recommendations that consider all of the personal information a tourist provides. We adopt and modify techniques from recommender systems to the new application area of mobile tourist information. We propose a number of methods for personalised recommendations; and select a subset of these for implementation. This paper then presents the implemented recommender component of our TIP system for mobile tourist information.
- KonferenzbeitragDesigning distributed data warehouses and OLAP systems(Information systems technology and its applications, ISTA' 2005, 2005) Zhao, JaneOn-line analytical processing (OLAP) systems deal with analytical tasks in businesses. As these tasks do not depend on the latest updates by transactions, it is assumed that the data used in OLAP systems are kept in a data warehouse, which separates the input coming from operational databases from the output going to dialogue interfaces for OLAP. In this article we present a 3-tier architecture for data warehouses and OLAP systems capturing the fundamental requirement of separating input from operational databases from output to OLAP systems. On this basis we start developing refinement rules to enable step-wise refinement for such systems, which includes pragmatic guidelines for the application of such rules.
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