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Preuss M.,European Research Center for Information Systems | Liapis A.,IT University of Copenhagen | Togelius J.,IT University of Copenhagen
IEEE Conference on Computatonal Intelligence and Games, CIG | Year: 2014

In procedural content generation, one is often interested in generating a large number of artifacts that are not only of high quality but also diverse, in terms of gameplay, visual impression or some other criterion. We investigate several search-based approaches to creating good and diverse game content, in particular approaches based on evolution strategies with or without diversity preservation mechanisms, novelty search and random search. The content domain is game levels, more precisely map sketches for strategy games, which are meant to be used as suggestions in the Sentient Sketchbook design tool. Several diversity metrics are possible for this type of content: we investigate tile-based, objective-based and visual impression distance. We find that evolution with diversity preservation mechanisms can produce both good and diverse content, but only when using appropriate distance measures. Reversely, we can draw conclusions about the suitability of these distance measures for the domain from the comparison of diversity preserving versus blind restart evolutionary algorithms. © 2014 IEEE.

Quadflieg J.,TU Dortmund | Preuss M.,European Research Center for Information Systems | Rudolph G.,TU Dortmund
Genetic Programming and Evolvable Machines | Year: 2014

We present the evolution and current state of the Mr. Racer car racing controller that excelled at the corresponding TORCS competitions of the last years. Although several heuristics and black-box optimization methods are employed, the basic idea of the controller architecture has been to take over many of the mechanisms human racing drivers apply. They learn the track geometry, plan ahead, and wherever necessary, adapt their plans to the current circumstances quickly. Mr. Racer consists of several modules that have partly been adapted and optimized separately, where the final tuning is usually done with respect to a certain racing track during the warmup phase of the TORCS competitions. We also undertake an experimental evaluation that investigates how the controller profits from adding some of the modules to a basic configuration and which modules are most important for reaching the best possible performance. © 2014 Springer Science+Business Media New York.

Taratuknin V.,European Research Center for Information Systems | Yadgarova Y.,Moscow State Technical University
Annual Conference of the North American Fuzzy Information Processing Society - NAFIPS | Year: 2015

The main goal of this paper is to describe the integrated fuzzy logic approach to configuration and requirements management in the context of product lifecycle management (PLM) [1]. Configuration management is a part of PLM concept. In this work concept of configuration management as a process of development new products and control of several product's configurations was developed. The design process phase starts with requirements development (Fig. 1) and progress to product structure development. In this work the analysis of requirements management process was investigated and fuzzy framework to synthesis product configuration due to customer's requirements was suggested. Method implementation can be presented as a module for production PLM solution. © 2015 IEEE.

Yadgarova Y.V.,Moscow State Technical University | Taratukhin V.V.,European Research Center for Information Systems | Skachko E.N.,Moscow State Technical University
Lecture Notes in Business Information Processing | Year: 2015

The main goal of this paper is to describe the integrated approach to product lifecycle management in the context of enterprise information system landscape. Product lifecycle management is a part of the common information area in the enterprise. In this work the analysis of enterprise interoperability problems was presented. To classify such problems and solution approaches we use a framework for enterprise interoperability, described by D. Chen at [1]. The paper suggests reference architecture for product lifecycle management systems based on multi-agent concept. It promotes understanding of the interrelationships of different lifecycle stages for acquiring and manipulating concurrent engineering knowledge. © IFIP International Federation for Information Processing 2015.

Niehaves B.,European Research Center for Information Systems | Ortbach K.,European Research Center for Information Systems
16th Americas Conference on Information Systems 2010, AMCIS 2010 | Year: 2010

Innovating public administrations, for instance by means of E-Government, becomes an increasingly important issue in order to satisfy growing demands of citizens and to reduce costs of public service provision. Demographic change in industrialized countries, namely societal aging and depopulation, has various influences on the development of E-Government strategies. On the one hand, elderly citizens use services of their local government more often than people of younger age-groups. On the other hand, they are less likely to use complex electronic services in general and E-Government in specific. In addition, municipalities have to deal with increased cost pressure and the aging of the workforce within their local administrations as a result of the demographic change. Our quantitative analysis focuses on identifying the perceived importance of problems related to the demographic change in German and Japanese public administrations, addresses what areas of reform are related to these problems and points out implications for the development of innovation strategies by means of E-Government. We contrast the developments in both countries with respect to both demographic situation and public innovation in order to derive possible implications for the future.

Niehaves B.,European Research Center For Information Systems
Proceedings of the Annual Hawaii International Conference on System Sciences | Year: 2011

Open Innovation' is a management perspective that suggests to systematically make use of knowledge that lies outside of an organization's boundaries for innovation initiatives. It has been heavily discussed for product innovation, however, an 'open' perspective on business process innovation - here referred to as 'open process innovation' - has not yet been taken. Examining open process innovation in the public sector, we draw from network management literature and develop an actor- and network-oriented analytical approach. The paper seeks to investigate into what are Business Process Management (BPM) networks, how do they constitute empirically, and are there differences between countries? With the help of a quantitative study in Germany and Japan, we show that the formation of public sector BPM networks is heavily impacted by politico-administrative system variables. The study provides evidence that open process innovation does take place, but different actor sets that play an important role in the respective countries. Based on these findings, implications for theory and practice are discussed, for instance, the network role and skill set requirement of the BPM Manager. © 2011 IEEE.

Schomm F.,European Research Center for Information Systems
CEUR Workshop Proceedings | Year: 2016

Dealing with data necessitates understanding data, which can be facilitated by analyzing its metadata. This metadata is often not readily available, and thus, needs to be extracted and collected. This activity is called data profiling and is well established and researched in the literature. However, what is missing is a structured description of a holistic data profiling process, that puts together all the individual pieces and guides a user from the problem to the solution. This paper describes such a process and the results and insights that have been achieved so far.

Fekete D.,European Research Center for Information Systems
CEUR Workshop Proceedings | Year: 2016

Traditional Data Warehouse (DWH) architectures are challenged by numerous novel Big Data products. These tools are typically presented as alternatives or extensions for one or more of the layers of a typical DWH reference architecture. Still, there is no established joint reference architecture for both DWH and Big Data that is inherently aligned with business goals as implied by Business Intelligence (BI) projects. In this paper, the current iteration of a work-inprogress approach towards such custom BI architectures, the GOBIA method, is presented to address this gap, combining a BI reference architecture and a development process. A use case example is presented to illustrate the proposed method.

Schellhammer S.,European Research Center for Information Systems
24th Bled eConference - eFuture: Creating Solutions for the Individual, Organisations and Society, Proceedings | Year: 2011

The complexity of studies concerning the development of inter-organisational information systems (IOIS) over large timescales poses severe challenges on existing models and theoretical frameworks. Such 'evolutionary' research requires multiple perspectives on the phenomenon in order to account for changes as well as persistent elements of the IOIS. In this paper the theoretical concept of 'structural coupling' derived from autopoietic theory is proposed as a means to conceptualise the required alignment of independent organisations that venture into an IOIS. The need for a new concept is motivated against the backdrop of a case study covering the evolution of an electronic ordering system over almost three decades. Subsequently, the case study is used to illustrate the applicability of the concept to the empirical data. The paper finds that conceiving IOIS as structurally coupled systems offers a new and promising venue to study these systems on large timescales.

Becker J.,European Research Center for Information Systems | Beverungen D.,European Research Center for Information Systems | Knackstedt R.,European Research Center for Information Systems
Lecture Notes in Business Information Processing | Year: 2012

Confronted with decreasing margins and a rising customer demand for integrated solutions, manufacturing companies broaden their portfolio by offering complementary services. Designing, proposing and providing customer solutions (consisting of physical goods and services) takes place in product-service systems, which may comprise manufacturing companies, service companies and customers. Conceptual modeling is an established approach to support such efforts. In this paper, a method for selectively designing conceptual modeling languages is proposed and demonstrated. Departing from outlining the general properties of value creation in product-service systems, a catalogue of modeling requirements in this area is compiled based on analyzing the perspectives of four sub-disciplines on service research. An evaluation of a set of modeling languages with this catalogue reveals that the languages incompletely address the requirements. Therefore, an approach to selectively design new modeling languages for product-service systems is proposed based on integrating and extending the meta models of other modeling languages. © 2012 Springer-Verlag Berlin Heidelberg.

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