Veckobladet om forskning, undervisning och
administration, m.m.

Nummer 40 · 29 november 2001 · Årgång 31       


Jag håller mitt lic-seminarium
tisdagen den 18 december kl 9.15 i sal D3.
Avhandlingens titel är:
Two Aspects of Viscous Shocks: Existence of a Solution and Numerical Errors

Malin Siklosi

Abstract Cont.

Doctoral Dissertation!

Christian Persson
Media Technology and Graphic Arts, Nada

Strategies for enhancing consumer
interaction in electronic retailing

December 14. 2001, at 10 am.
Thesis for the degree of Doctor of Technology to be presented with due permission for public examination and criticism in Room D2, Lindstedtsvägen 5, at the Royal Institute of Technology, KTH.

Abstract Cont.


Maria Enroth
Title: Tools for Eco-efficiency in the Printing Industry
Torsdag den 13 december 2001, kl. 13.00 i seminarierum E2, Lindstedtsvägen 3.

Abstract Cont.


Jag heter Kyoung-Sook Moon och jag ska presentera min licentiatavhandling fredagen den 7 december 2001 kl 11:00 i seminarierum 4523, våning 5, Lindstedtsv. 3.

Title: Convergence Rates of Adaptive Algorithms for Deterministic and Stochastic Differential Equations

Kyoung-Sook Moon

Abstract Cont.

Licentiate Thesis

Jonas Rehn
Media Technology and Graphic Arts, Nada

Information Flow and Physical Distribution Planning in
Newspaper Delivery

Thesis for the degree of Licentiate of Technology to be presented with due permission for public examination and criticism in the Seminar Room E3, Osqarsbacke 14, at the Royal Institute of Technology, KTH, on December 7th 2001, at 11 a.m.

Abstract Cont.

Licentiate Thesis

Human Resource Management Strategies within the Graphic Arts and Media Sector

Anastasios E. Politis, M.Sc.
13/12 kl 10-11 sal E2, Lindstedtsv 3.

Royal Institute of Technology
Department of Numerical Analysis and Computer Science
Media Technology and Graphic Arts

Abstract Cont.

Nobelpristagare besöker
Stockholms universitet

Välkomna att lyssna på paneldiskussion med tidigare Nobelpristagare tisdag 4 december kl. 16.30 i Aula Magna.

Då diskuterar ekonomipristagarna Gary Becker och Amartya Sen, kemipristagarna Paul Crutzen, Mario Molina, Sherwood Rowland och Harold Kroto, fysikpristagaren Georges Charpak samt litteraturpristagaren Seamus Heaney över temat "How can we encourage young people to pursue higher education?". Diskussionen leds av frilansjournalisten Ulf Wickbom och inleds av Stockholms Improvisationsteater med ett kort inslag över temat.

(De åtta Nobelpristagarna är här med anledning av Nobelprisets hundraårsjubileum till vilket Nobelstiftelsen bjudit in alla tidigare Nobelpristagare. Paneldiskussionen 4 december är öppen för alla intresserade och avslutar det slutna programmet för de hundratals gymnasieelever och lärare som Stockholms universitet bjudit in, vilket alltså är avsett endast för dessa.)

Mera Nobel

Alla årets Nobelpristagare, förutom fredspriset förstås, kan man lyssna på i Aula Magna. Lördag 8 december äger Nobelföreläsningarna i kemi och fysik och ekonomipriset rum och söndag 9 december är det dags för Nobelpriset i medicin eller fysiologi (ffg i Aula Magna).

Tider se anslag på stora affischpelare vid T-banan eller utanför hus A, Södra huset eller gå in på
Onsdag 12 december kommer litteraturpristagaren V.S. Naipaul till Aula Magna. Tiden är osäker men troligen kl. 17. Se närmare information så småningom på www och affischer.

Stockholms Akademiska Forum firar också Nobel, både med en
utställning med anledning av hundraårsjubileet och lunchsamtal där forskare från de medverkande högskolorna berättar om årets priser. Stockholms universitet berättar om litteratur (30/11) och kemi (3/12). Se närmare


Agneta Paulsson

Cont. Licentiatseminarium (Maria Enroth)

The main aim of this study has been to provide the graphic arts industry with industry-specific tools for environmental work that could contribute to eco-efficiency and a sustainable production. Eco-efficiency is to achieve more value from lower inputs of materials and energy and with reduced emissions. Eco-efficiency
is closely related to sustainable production.

Working methods and tools for eco-efficiency in the graphic arts industry should be industry-specific, with environmental information and knowledge of the current production circumstances and products, tailored to small and medium-sized enterprises (SME) and simple in the sense of being easy to use although valuable assistance based on scientific environmental data is still given.

The areas, which have been included in the research, are the following:
Evaluation of environmental management systems (EMS), development of industry-specific environmental indicators and development of industry-specific working methods and tools for design for environment (DfE).

The most significant results of the research can be summarised as follows:
• Recommendation of general industry-specific indicators with a defined method for a standardised inventory and calculation. This will make it possible to follow up and manage internal environmental work and to demonstrate and communicate environmental improvements both internally and externally.
• Description and recommended working methods for DfE in graphic arts companies.
• Practical tools for applying DfE to printed products in the form of a manual and a checklist. The checklist has been designed so that it will also serve as a simple tool for the environmental assessment of printed products.

The research is based on qualitative methods such as action research and case studies in order to illustrate real-life situations. The work has been carried out in co-operation with small and medium-sized graphic arts companies and reference groups.



Cont. Licentiatseminarium (Malin Siklosi)

We consider two aspects of viscous shocks. First, we develop a technique to prove existence of solutions of non-linear ODEs, based on that an approximate numerical solution exists. The aim is to show existence of stationary viscous shock-wave solutions of hyperbolic conservation laws. The technique is applied to viscous Burgers' equation.

Next, we consider the phenomenon that numerical solutions of hyperbolic conservation laws obtained by formally higher order methods are, in many cases, only first order accurate downstream of shocks. We use matched asymptotic expansions to analyze the phenomenon for one dimensional time dependent hyperbolic systems. We also show how to design the artificial viscosity term in order to avoid the first order error. Numerical computations verify that second order accurate solutions are obtained.

Vänliga hälsningar

Cont. Licentiatavhandling (Kyoung-Sook Moon )

An error representation of the form ``Global error = $\sum$ local error $\cdot$ weight'' is derived by a variational principle for general approximation of
functions of solutions to ordinary differential equations.
An adaptive algorithm including dividing and merging of time steps, based on the error expansion, is proven to stop with the optimal number of steps up to a problem independent factor defined in the algorithm.

The total work for the algorithm with decreasing tolerance turns out to be bounded by $\mathcal{O}(N)$, including all refinement levels; an alternative version with constant tolerance stops with $\mathcal{O}(N\log N)$ total steps. Furthermore, the global error of the algorithm is proven to be asymptotically bounded by the specified error tolerance.

Similar results on convergence rates of adaptive algorithms with either stochastic or deterministic time steps for weak approximations of It\^o stochastic differential equations are proved for the Monte Carlo Euler method. The main step in this extension is the proof of the almost sure convergence of the error density.

Numerical experiments illustrate the behavior of the adaptive algorithms and show by carefully chosen examples the efficiency to use the adaptive methods
compared to a uniform step size or a method based only on the local error (without the weight).

Cont. Licentiate thesis (Anastasios E. Politis)

Developments that have taken place in the information and communication industries over the past decade, have caused substantial structural changes to the traditional graphic arts and media sector. Driven by rapid technological developments, these structural changes take place not only internally within the production chain, but they also affect the entire spectrum of the sector`s operations and functions, in terms of products, market and business environments.

Principal factors that affect the graphic arts and media sector are the humans that have any type of relationship with the sector. Furthermore, the introduction and integration of new technologies such as digital printing and cross-media publishing into the traditional graphic arts enterprises have caused considerable changes in the production of printed media production, and workflow management. Consequently, these changes affect the competence characteristics and general requirements for existing employees and personnel that are to be recruited into the enterprises.

Human resource management or human capital development strategies have been introduced and applied mainly in large enterprises. Research has revealed that little attention has been given to the human capital development strategies of employees and owners of micro, small and medium sized enterprises or sole entrepreneurs and individual workers. Nowadays, the role of humans is considered important in any development strategy and as a result new concepts in human resources are have been developed. Among others, the following concepts are considered important: relationship management, emotional intelligence, customer relationship management and networking.
This thesis discusses the development of a new strategy for human resources management (HRM). Specific characteristics of the graphic arts and media sector as well as other parallel developments are investigated. Furthermore key aspects of the future media landscape and particularly the relationship between print and electronic media and the future of print media are described. Other influential factors, and their implications for the sector and the characteristics of human resources management strategies, are adressed, including globalisation, and new economy development models.

Finally, the initial structure of a model for the holistic development of human capital is presented. A aspect of the model is the hypothesis under which it has been developed: seen from the point of view of the entire sector, and within its transnational dimensions. Such approaches have not yet been tested and applied to any great extent. Therefore, further research is required for the achievement of a structured model based on the concept of holistic human capital development. Future objectives are the testing and pilot application of the model in real world conditions within the graphic arts and media sector, at a transnational level.


Cont. Doctoral dissertation

During recent years,the potential for electronic commerce via the Internet has been intensively discussed.A strong vision of e-commerce as a business with great potential has been established. In the mean time different signs of problems in connection with e-commerce have been observed.The comprehensive empirical material concerning consumers ’ impressions and experiences of e--commer- ce indicates that important qualities in the business are missing.
    This dissertation seeks to examine the potential for e-commerce by identifying and analysing factors that are important for the consumers in making use of the new medium. Based on the results obtained,new ystems and strategies that could facilitate the interaction between e-trading companies and consumers are discussed.
    The study starts with the identification of five factors that affect the consumer ’s possibilities of making use of the products and services in an e-commerce environment.The factors are: Attention, experiences,Social interaction,Physical contact with the products, and Consumer trust.
    Three strategies with the aim to improve the interaction between consumers and e-trading companies are proposed,based on the analysis.The strategies are deve loped and examined in six research papers forming the basis of this dissertation. Three papers discuss the use of personalization systems and autonomous agents in e-commerce.These contribute to the formation of a strategy called Analytical technology.One paper deals with the study of an advanced multimedia user interface distributed by means of a broadband portal.The strategy behind this is called the Hypermedia interface.Two papers discuss the combination of different retailing channels arranged in close connection.The proposed strategy is named Multi-Channel Retailing.
    The results of the studies indicate that all three strategies can give important contributions to the establishment of ease-of-use in e-commerce. The Multi-Channel Retailing strategy seems to be the most useful strategy in the short run. This is due to the fact that the necessary infrastructure already exists.The Analytical technology strategy and the Hypermediacy interface strategy have the potential to become important strategies in the future of e-commerce. However, a more common implementation cannot be expected until these systems have been further developed.

Cont. Licentiate thesis (Jonas Rehn)

Today morning newspaper publishing is a competitive market. Besides a declining circulation,the morning newspapers compete with each other and with other media such as tv, radio, the www and other on-line services. In order to be competitive in the media landscape of today,morning newspapers need to improve the production and the distribution of newspapers as well as other processes within the newspaper companies. Newspaper prepress, newspaper production as well as the editorial process have been the focus of a number of research projects in the last decade [Alasuvanto et al,1994 ], [Enlund,1994 ], [Tuukkanen,1994 ], [Nordqvist,1996 ], [Stenberg,1997 ],[Northrup,1999 ], [Rosenqvist,2000 ], [Sabelström Möller,2001 ]. Research regarding the newspaper distribution process has also been in focus during the last decade; however, the aim of this research has mainly been route planning [Mantel,1993], [Canen,1994 ], [Gerdessen,1996 ], [Dillmann et al,1996 ],[Malmborg,1996 ], [Berger,1997 ].
    The use of computers is limited within distribution organizations, therefore the implementation of computer aid to improve planning of the physical distribution and the information flow can be of importance in order for the newspaper companies to remain competitive [Lalonde et al,1995 ].
    To cope with these challenges,a research project at the Royal Institute of Technology,in cooperation with Tidningsutgivarna, ten newspapers and newspaper distribution companies,started in March 1999 .The three main areas of interest for this project were:
• What are the characteristics of the processes within morning newspaper distribution?
• How are the processes within morning newspaper distribution related??
• How can morning newspaper distribution be improved??
    A model of morning newspaper distribution can be used to increase our understanding of the process. By understanding the process it becomes possible to determine where improvements can be of value.The model can serve as the basis for finding processes within the field of distribution to be improved. It may be possible to improve each process;however,each process must be a project of research. In this licentiate thesis, a model was created in order to find which process could be improved. It was found that it would be valuable to improve two processes within morning newspaper distribution:the information flow and the coordination between the production and the distribution.
    The information flow within the distribution process can be improved with electronic devices used by the truck drivers and the carriers, telephones. However,the information sent and received should be logged so that the tracking of problems can be maintained. Depending on the agreements reached with
telecommunication companies,the cost for using such a system will vary. Examples of the benefits of using a so-called mobile field system are a faster flow of information,possibilities for tracking the distribution and possibilities for solving problems that occur during the night.


SANS seminar

SANS seminar monday december 3 at 13.00 in room 4523 by Prof. Dan
Hammerstrom, Electrical and Computer Engineering, OGI School of
Science and Engineering.

Hardware Implementation of Massively Parallel Computation Models
For more than 15 years I have been studying the implementation of massively parallel computational models. These models include, but are not limited to, image processing, artificial neural networks, and complex models derived from Computational Neuroscience.

Not having learned my lesson with the Adaptive Solutions CNAPS processor, I continue to study this topic, though at this point it is not obvious to me what the next best step is. However, what is clear is that as the computational models get more complex and powerful, and as Moore‚s law continues unabated, there is still interesting research to be done in this area.

By 2010 we will be able to put 1 billion transistors on a single piece of
silicon (Intel actually thinks they may get there by 2007). What is the
best use of those transistors to solve the pressing problems of the
computer revolution? In this talk I will discuss the implementation of large associative network models and the various options we are considering in trying to answer the 1 billion transistors question.

Very welcome, Erik and Anders

Numero är institutionstidningen vid Nada – institutionen för numerisk analys och datalogi, KTH. Numero utkommer normalt på torsdags-förmiddagar under teminstid. Manus måste lämnas in före kl.12 på onsdagar.

Manus, tips, förslag och andra bidrag till Numero kan lämnas på något av följande sätt:

Bidrag för artiklar och notiser bör i största möjliga mån vara färdigformulerade och korrekturlästa.

Varje Numeronummer utkommer i två former:

Numeroredaktionen består av Rickard Buch. Ansvarig utgivare är Ingrid Melinder. Numeros innehåll uttrycker inte institutionens officiella ståndpunkt annat än då detta anges.

Ibland refereras till Numeropärmen. Det är en pärm som finns i bokhyllan i Nadas fikarum på plan 4, i vilken kompletterande information sätts in, försett med nummer på formen 01:NN-N.


Fre. 30 november kl. 10.15

IPLab seminar! Shumin Zhai, IPLab, NADA and IBM, USA
"The Partial Occlusion Effect: Utilizing Semi-transparency in 3D Human Computer Interaction". Room 4523, Lindstedtsv 5, floor 5.

Mån. 3 december kl. 13.00

SANS seminar. Prof. Dan Hammerstrom, Electrical and Computer Engineering, OGI School of Science and Engineering. Room 4523 by

Tis. 4 december kl. 15.15-17.00

Seminarer om beslutsstöd och informationsfusion
ON RATIONALITY, TECHNOLOGY AND ACTION IN THE MODERN ORGANIZATION. Per-Arne Persson (Försvarsmaktens armètaktiska kommando) och Arne Worm (FOI) , Sal E33, Lindstedtsv. 3, plan 3.

Fre 7 december

kl. 11.00


kl 11:00

Licentiatavhandling! Jonas Rehn, Media Technology and Graphic Arts. Title: Information Flow and Physical Distribution Planning in Newspaper Delivery. Seminarierum E3, Osqarsbacke 14, KTH.

Licentiatavhandling! Kyoung-Sook Moon: Title: Convergence Rates of Adaptive Algorithms for Deterministic and Stochastic Differential Equations. Seminarierum 4523.

Ons. 12 december kl. 10.00

Licentiatavhandling! Fredrik Winberg: Auditory Direct Maniupulation for Blind Computer Users . Sal E2.

Tors. 13 december


kl. 13.00


kl 10.00

Luciafirande på Nada

Licentiatseminarium! Maria Enroth
Title: Tools for Eco-efficiency in the Printing Industry
Seminarierum E2.

Licentiate Thesis! Anastasios E. Politis, M.Sc.: Human Resource Management Strategies within the Graphic Arts and Media Sector
Sal E2, Lindstedtsv 3.

Fre. 14 december kl.10.00

Doctoral Dissertation! Christian Persson: Strategies for enhancing consumer interaction in electronic retailing.
Room D2, Lindstedtsvägen 5.

Tis. 18 december kl 9.15

Licentiatseminarium. Malin Siklosi : Two Aspects of Viscous Shocks: Existence of a Solution and Numerical Errors. Sal D3.

" Some of the world's greatest feats were accomplished by people not smart enough to know they were impossible. "

Doug Larson