This is the central portal to the iCIS Publication Management System (PMS).
About a decade ago it was intended to be the only system for keeping track of publications by iCIS members. In particular, it was the dedicated system for creating new technical reports.
However, this system has been abandoned and is only kept available for retrieving old publications.

Apart from security updates in the underlying framework, it is not supported anymore.
If you have questions about it, please contact Engelbert Hubbers.

IRIS Research Publications

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D.C. van Leijenhorst, Th.P. van der Weide, and F.A. Grootjen. A formal derivation of Heaps` Law. In: Information Sciences, Nr: -, Pages: -, 2003.

Word frequencies in text documents can be reasonably described by the Mandelbrot distribution, which has Zipf's Law as a special case. Furthermore, the growth of vocabulary size as a function of the text size (its number of words) has been described in Heaps' Law. It has been shown that these two experimental laws are related.

In this paper we go a step further, and provide a (formal) derivation of Heaps' Law from the Mandelbrot distribution. We also provide a specification of the validity area for applying Heaps' Law.

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S.J.B.A. (Stijn) Hoppenbrouwers. Freezing Language; Conceptualisation processes across ICT supported organisations. December, University of Nijmegen, 2003, ISBN 9090173188.

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H.A. (Erik) Proper. Informatiekunde; Exacte vaagheid. November, Institute for Information and Computing Sciences, Radboud University Nijmegen, 2003, In Dutch, ISBN 9090172866.

Computers dringen door tot elke uithoek van de samenleving. Maar zit de gebruiker daar wel op te wachten? De miniaturisering, de toenemende interconnectiviteit en de dalende prijs van de rekenkracht, bieden legio mogelijkheden voor nieuwe toepassingen van gecomputeriseerde informatieverwerking. Dat betekent ook dat computers een toenemende invloed zullen hebben op de manier waarop we met zijn allen leven en werken. Hoogleraar Informatiekunde Erik Proper van de KU Nijmegen vindt dat voor de introductie van elke nieuwe vinding de kritische vraag gesteld moet worden of het een nuttige of wenselijke toevoeging is voor de samenleving. De informatiekunde is een vrij nieuw wetenschapsgebied dat er voor moet waken dat de digitalisering in goede banen wordt geleid. Informatiekundigen zijn als het ware de vormgevers, architecten en planologen van het digitale tijdperk. Professor Proper geeft in zijn oratie op maandag 10 november inzicht in een aantal nieuwe ontwikkelingen.

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S. Bosman, and Th.P. van der Weide. A case for incorporating vague representations in formal information modeling. In: Conferentie Informatiewetenschap 2003, 2003.

This paper gives a fundamental overview of the information modeling process in the context of requirements engineering. From this we propose an extension to conventional modeling techniques by introducing so-called vague concepts.

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H. Jonkers, G.E. Veldhuijzen van Zanten, R. van Buuren, F. Arbab, F. de Boer, M. Bonsangue, H. Bosma, H. ter Doest, L. Groenewegen, J. Guillen Scholten, S.J.B.A. (Stijn) Hoppenbrouwers, M.-E. Iacob, W. Janssen, M.M. Lankhorst, D. van Leeuwen, H.A. (Erik) Proper, A. Stam, and L. van der Torre. Towards a Language for Coherent Enterprise Architecture Descriptions. In: 7th IEEE International Enterprise Distributed Object Computing Conference (EDOC 2003), Brisbane, Queensland, Australia, Edited by: M. Steen, and B.R. Bryant. Pages: 28-39, September, IEEE, Los Alamitos, California, USA, 2003, ISBN 0769519946.

A coherent description of an enterprise architecture provides insight, enables communication among stakeholders and guides complicated change processes. Unfortunately, so far no enterprise architecture description language exists that fully enables integrated enterprise modelling, because for each architectural domain, architects use their own modelling techniques and concepts, tool support, visualisation techniques, etc. In this paper we outline such an integrated language and we identify and study concepts that relate architectural domains. In our language concepts for describing the relationships between architecture descriptions at the business, application, and technology levels play a central role, related to the ubiquitous problem of business-IT alignment, whereas for each architectural domain we conform to existing languages or standards such as UML. In particular, usage of services offered by one layer to another plays an important role in relating the behaviour aspects of the layers. The structural aspects of the layers are linked through the interface concept, and the information aspects through realisation relations.

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H.A. (Erik) Proper. Architecture-driven Information System Development - Toward a framework for understanding. In: Proceedings of the 7th World Multiconference on Systemics, Cybernetics and Informatics, Edited by: N. Callaos, D. Farsi, M. Eshagian-Wilner, T. Hanratty, and N. Rish. Vol: XII, Pages: 144-149, July, 2003, ISBN 9806560019.

This article discusses a conceptual framework for architecture-driven information system development. Rather than defining a completely new framework, the conceptual framework is synthesized out of relevant pre-existing frameworks for system development and architecture.

Before discussing the actual framework, we briefly discuss the necessity for an architecture-driven approach to system development.

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B. van Gils, H.A. (Erik) Proper, P. van Bommel, and E.D. Schabell. Profile-based retrieval on the World Wide Web. In: Proceedings of the Conferentie Informatiewetenschap (INFWET2003), Edited by: P.M.E. de Bra. Pages: 91-98, 2003.

In this article we present a novel architecture for Information Retrieval on the Web called VIMES. This architecture is based on a broader definition of relevance. This broader definition lies in the fact that there is more then just topical relevance. Documents (or: resources) must also confirm to other constraints with regard to form, format and also things like price and quality.

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B. van Gils, H.A. (Erik) Proper, and P. van Bommel. Towards a General Theory for Information Supply. In: Proceedings of the 10th International Conference on Human-Computer Interaction, Edited by: C. Stephanidis. Pages: 720-724, 2003, ISBN 0805849300.

The Web has grown considerably over the last few years, both in size and in nature. The usage of the internet as a source of information has grown considerably as well. However, finding the right information is not always straight forward. For example, how to go about finding out how many concerts the band Golden Earring gave in the year 1987, or finding out which webpages are inspired by Terry Pratchett’s Diskworld novels? Even though much effort has been invested in this area, we feel that a solid, conceptual framework for information supply is still missing. In this paper we broadly define such a framework, and explain how it can be used in e.g. Web Retrieval by means of an example. We also explain which areas need more research and what can be expected in the (near) future.

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B. van Gils, and E.D. Schabell. User-profiles for Information Retrieval. In: The 15th Belgian-Dutch Conference on Artificial Intelligence (BNAIC`03), Pages: 139-146, October, 2003.

In this position paper we will investigate a novel architecture for profile-based retrieval on the Web called Vimes. This architecture is based on the fact that resources found on the Web should not only be topically relevant to a searcher's query; other characteristics (such as the file format or structural format) of a resource are equally important. Furthermore, Vimes uses profiles to deal with user characteristics and constraints.

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G.E. Veldhuijzen van Zanten, S.J.B.A. (Stijn) Hoppenbrouwers, and H.A. (Erik) Proper. System Development as a Rational Communicative Process. In: Proceedings of the 7th World Multiconference on Systemics, Cybernetics and Informatics, Edited by: N. Callaos, D. Farsi, M. Eshagian-Wilner, T. Hanratty, and N. Rish. Vol: XVI, Pages: 126-130, July, 2003, ISBN 9806560019.

System development is a process in which communication plays an important role. Requirements must be elicited from various stakeholders. But stakeholders also make decisions and must understand the consequences thereof. Different viewpoints must be reconciled, and agreements reached.

An important assumption we make is that all actions in the development process are (or should be) based on rational decisions. The quest for rationality is a driving force behind the communication that takes place within the development process, because it raises issues that may otherwise have remained in the subconsciousness of stakeholders. We zoom in on the role of vagueness in communication, and argue that there are good reasons not to try and formalize things too soon in the development process.

The purpose of this paper is to position our ongoing research, encourage discussion about the assumptions we make, and inspire novel approaches to system development. We work towards a comprehensive theory of rational system development, in which due attention is paid to development processes, communication, and the representations used therein.

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Paul de Vrieze, P. van Bommel, J. Klok, and Th.P. van der Weide. Towards a Two-Dimensional Framework for User Models. In: Proceedings of the MAWIS03 workshop attached to the OOIS03 conference, September, 2003.

The focus of this paper is user modeling in the context of personalization of information systems. Such a personalization is essential to give users the feeling that the system is easlily accessible. The way this ada[tive personalization works is very dependant on the adaptation model that is chosen. We introduce a generic two-dimensional classification frame work for user modeling systems. This enables us to clarify existing as well as new applications in the area of user modeling. In order to illustrate our framework we evaluate push and pull based user modeling.

Keywords: user modelling, adaptation model

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V. Kamphuis, H.A. (Erik) Proper, and S.J.B.A. (Stijn) Hoppenbrouwers. Informatiekunde 2003 - Curriculum. Institute for Information and Computing Sciences, Radboud University Nijmegen, 2003, In Dutch.

Dit document heeft betrekking op het curriculum van de opleiding informatiekunde van het Nijmeegs Instituut voor Informatica en Informatiekunde (NIII). Het doel is het bieden van een ‘repository’ met betrekking tot de inrichting van het curriculum wat vanaf 2003 zal gaan gelden.

In de afgelopen drie jaar is zowel op landelijk als op Nijmeegs niveau het beeld van informatiekunde als vakgebied nader geconcretiseerd. Het Curriculum 2003 is enerzijds het resultaat van deze concretisering en anderzijds van de drie jaar ervaring die inmiddels binnen het NIII is opgebouwd met de informatiekunde opleiding. In dit document zal daarom ook expliciet aandacht besteed worden aan de ‘migratie’ vanuit de bestaande ‘opstart’ curricula: 2000, 2001 en 2002. Hierbij moet opgemerkt worden dat de studenten van cohort 2000 in principe dit jaar (2003) de bachelorfase van de Informatiekunde opleiding afronden. Voor deze lichting studenten is dus geen specifieke ‘migratie’ nodig.

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V. Kamphuis, H.A. (Erik) Proper, and S.J.B.A. (Stijn) Hoppenbrouwers. Informatiekunde 2003 - Visie. Institute for Information and Computing Sciences, Radboud University Nijmegen, 2003, In Dutch.

Dit document heeft betrekking op de visies die ten grondslag liggen aan het informatiekunde onderwijs en onderzoek binnen het Nijmeegs Instituut voor Informatica en Informatiekunde (NIII). Het uiteindelijke doel van dit document is het bieden van een ‘repository’ met betrekking tot deze visies, en een basis voor de specifieke inrichting van het curriculum van de opleiding en de onderzoeksplannen. Daar informatiekunde voor het NIII een relatief nieuwe opleiding en onderzoeksgebied is, is er in de huidige (2003) versie van dit document primair aandacht voor de informatiekunde opleiding. Het ligt in de lijn der verwachtingen dat er in de komende jaren, in updates van dit document, ook meer aandacht besteed zal worden aan het informatiekunde onderzoek.

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F.A. Grootjen, and Th.P. van der Weide. Information Retrieval as a Semantics Transformation. Technical report: NIII-R0303, Computing Science Institute, University of Nijmegen, 2003.

In this paper we present Information Retrieval as a semantics transformation problem. We describe a general theory to derive concepts, and discuss 2 special cases: the vector model and the set model. The vector model leads to Singular Value Decomposition, while the set model leads to Formal Concept Analysis. We discuss the relation between the resulting systems of concepts.

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E.D. Schabell. Building the PRONIR Conversion Clearinghouse. Technical report: NIII-R0317, Nijmegen Institute for Information and Computing Sciences, University of Nijmegen, Nijmegen, The Netherlands, EU, 2003.

As a vital part of the larger architecture, our document conversion system will need to provide for the transformation of documents to a requested format. The first step on the way to realizing this system is to gather all the various conversion routines in a central location. To achieve this, the Conversion Clearinghouse has been implemented to provide a means for anyone to submit her favorite conversion routines. Our Conversion Clearinghouse also allows anyone to browse through and pick out any of the collected conversions.

The following report describes the design and implementation of the various elements that make up our Conversion Clearinghouse. This work is part of the ongoing research project Profile Based Retrieval Of Networked Information Resources (PRONIR).

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E.D. Schabell. The DocConversion framework. Technical report: NIII-R0332, Nijmegen Institute for Information and Computing Sciences, University of Nijmegen, Nijmegen, The Netherlands, EU, 2003.

Continuing where the ``PRONIR Conversion Clearinghouse'' left off, this technical report presents the basic framework of the DocConversion tool. In its first phase our DocConversion tool will support single step document conversions, provide a Broker that negotiates the conversion process and a conversion Server. This is the first of three phases to be traversed on our way to a complete document conversion system. This work is part of the ongoing research project Profile Based Retrieval Of Networked Information Resources (PRONIR).

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M.M. Lankhorst, and H.A. (Erik) Proper. Sturen door Inzicht. In: IT Monitor, Nr: 3, Pages: 8-11, March, 2003, In Dutch.

Veel organisaties worstelen met het reageren op de snelle veranderingen in hun omgeving, gegeven de bestaande legacy van bedrijfsprocessen, applicaties en infrastructuur. Een goede architectuurpraktijk kan hierbij zeer behulpzaam zijn. Werken onder architectuur zorgt ervoor dat een organisatie beheersbaar kan omgaan met veranderingen in bedrijfsstrategie en ICTmogelijkheden. Het ontwikkelen en onderhouden van architecturen leidt tot efficiency, kostenbesparingen en flexibiliteit.

Binnen bedrijven komen verschillende architecturen voor. Denk aan architecturen voor bedrijfsprocessen, applicaties, informatie en technische infrastructuur. Elk van die architecturen wordt beschreven en gevisualiseerd in een eigen vocabulaire. Deze specifieke modellen en visualisaties vereenvoudigen de communicatie, discussie en analyse binnen het architectuurgebied. Ieder architectuurgebied heeft echter zijn eigen taal, heeft zijn eigen beelden en gebruikt zijn eigen tools en technieken, waardoor veranderingen in andere domeinen niet zichtbaar worden.

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H.A. (Erik) Proper, and V. Kamphuis. Informatiekundigen: Vormgevers van de digitale samenleving. In: TINFON, Nr: 4, Vol: 12, Pages: 106-109, December, 2003, In Dutch.

In dit artikel gaan we in op de visie die ten grondslag ligt aan de Nijmeegse Informatiekunde opleiding. We bespreken allereerst de ontwikkelingen in de samenleving die hebben geleid tot het ontstaan van het nieuwe wetenschapsgebied van de Informatiekunde, en de positionering van dit nieuwe wetenschapsgebied ten opzichte van het traditionele wetenschapsgebied van de Informatica. Vervolgens gaan we in op de eisen die worden gesteld aan een opleiding Informatiekunde, gesteld vanuit de toekomstige rol van Informatiekundigen in de maatschappij. Tot slot geven we een korte schets van de opleiding zoals die in Nijmegen met ingang van curriculum 2003 van start is gegaan.

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