Integrative Visual Analytics for Suspicious Behavior Detection (2009)
Bak, Peter, Koch, Stefan, Rohrdantz, Christian, Butscher, Simon, Leifert, Svenja, Jungk, Patrick, ...
In the VAST Challenge 2009 suspicious behavior had to be detected applying visual analytics to heterogeneous data, such as network traffic, social network enriched with geo-spatial attributes, and...
In this paper we will analyse sourcing decisions in the finance sector, dealing with a mature area, IT outsourcing and a relatively new field, operations outsourcing. For introducing this topic, we...
In this paper we will analyse sourcing decisions in the finance sector, dealing with a mature area, IT outsourcing and a relatively new field, operations outsourcing. For introducing this topic, we...
In this paper we report possibilities and experiences from employing Counter-Strike, a popular multi-player Internet computer game and its resulting online community in research on cooperative...
Seminar paper draft Seminar aus Informationswirtschaft (2008)
Christoph Olbrich, Dr. Stefan Koch
The demand for internet content rose dramatically in recent years. Servers became more and more powerful and the bandwidth of end user connections and backbones grew constantly during the last...
Using Value-at-Risk for IS/IT Project and Portfolio Appraisal and Risk Management (2008)
Abstract: This paper makes the case for adopting a risk measure from the finance sector for IS/IT project and portfolio evaluation. The proposed value-at-risk approach constitutes a well-tested...
In vivo analysis of wound healing by optical methods (2008)
Alborova, Alena, Lademann, Jürgen, Kramer, Axel, Richter, Heike, Patzelt, Alexa, Sterry, Wolfram, ...
Edward Bernroider, Stefan Koch
In this paper we detail the results from an empirical study concerning differences in characteristics of the ERP system selection process between small or medium and large sized organizations. In...
In this paper we report possibilities and experiences from employing Counter-Strike, a popular multi-player Internet computer game and its resulting online community in research on cooperative...
Open Source software engineering - The state of research (2007)
The following commentary is part of First Monday's Special Issue #2: Open Source.
Entwicklung und Evaluation einer berufsbezogenen Gruppentherapie für die stationäre kognitive Verhaltenstherapie.
Managing Assistant and Contact: (2007)
Stefan Strecker, Stefan Koch, Der Wirtschaftsinformatik, Ulrich Frank, Stefan Strecker, ...
der Darstellung vorläufiger Ergebnisse, die i. d. R. noch für spätere Veröffentlichungen überarbeitet werden. Die Autoren sind deshalb für kritische Hinweise dankbar. Alle Rechte vorbehalten....
High-Reynolds-Number Design of a Wing Section Including Control of Boundary Layer Properties (2006)
Richter, Kai, Koch, Stefan, Rosemann, Henning
A novel high Reynolds number design for airfoils with an application in the outer part of a modern transport aircraft wing was conducted within the frame of the German technology research programme...
Koch, Stefan, Olbrich, Christoph
In diesem Artikel werden die Ergebnisse einer vergleichenden Usability-Untersuchung von Office Suites dargestellt, wobei einerseits der kommerzielle Marktführer Microsoft Office, andererseits die in...
Koch, Stefan; Olbrich, Christoph
In diesem Artikel werden die Ergebnisse einer vergleichenden Usability-Untersuchung von Office Suites dargestellt, wobei einerseits der kommerzielle Marktführer Microsoft Office, andererseits die in...
Conceptual Modelling as a New Entry in the (2006)
Bazaar The Open, Stefan Koch, Stefan Strecker, Ulrich Frank
The present contribution proposes to transfer the main principles of open source software development to a new context: conceptual modelling; an activity closely related to software development.
Bei Gesichtsschädelverletzungen stellen Unterkieferfrakturen einen hohen Anteil dar. Besonders problematisch sind dabei Frakturen der Gelenkwalze, die bei der bisher üblichen konservativen Therapie...
Ziel der Arbeit war die Beurteilung dieser dezentralen Abwasserbehandlung im Laufe der Zeit. Um der Fragestellung nach etwaigen Problemsituationen nachzugehen, beginnt die Arbeit zunächst mit einem...
Effort Modeling and Programmer Participation in Open Source Software Projects (2005)
This paper analyses and develops models for programmer participation and effort estimation in open source software projects. This has not yet been a centre of research, although any results would be...
Effort Modeling and Programmer Participation in Open Source Software Projects (2005)
This paper analyses and develops models for programmer participation and effort estimation in open source software projects. This has not yet been a centre of research, although any results would be...
Discussion of a large-scale open source data collection methodology (2005)
This paper discusses in detail a possible methodology for collecting repository data on a large number of open source software projects from a single project hosting and community site. The process...
Ausgeführt Am, Dr. Stefan Koch, Ingo Feinerer, Wolfgang Janko, Stefan Koch
deren Nutzen in der Softwareentwicklung darlegt, als Grundlage verwendet und um wesentliche betriebswirtschaftliche Komponenten erweitert, die eine
Evolution of Open Source Software Systems – A Large-Scale Investigation (2005)
Abstract – In this paper, the evolution of a large sample of open source software projects will be analysed. The evolution of commercial systems has been an issue that has long been a center of...
Profiling an Open Source Project Ecology and Its Programmers (2004)
While many successful and well-known open source projects produce output of high quality, a general assessment of this development paradigm is still missing. In this paper, an online community of...
Profiling an Open Source Project Ecology and Its Programmers (2004)
While many successful and well-known open source projects produce output of high quality, a general assessment of this development paradigm is still missing. In this paper, an online community of...
Im Kryo-Rohrwindkanal Göttingen (KRG) wurden Strömungsqualitätsmessungen durchgeführt, in denen die zeitliche und räumliche Entwicklung einzelner Schwankungsgrößen untersucht wurde. Hierbei...
ISRN DLR-FB-2004-19
Remote Analysis and Measurement of Libre Software Systems By Means of the CVSAnalY tool (2004)
Gregorio Robles, Stefan Koch, Juan Carlos
Libre (free, open source) software is one of the paradigmatic cases where heavy use of telematic tools and userdriven software development are key points. This paper proposes a methodology for...
Geißler, Wolfgang, Koch, Stefan
"Adaptive Airfoil" is the title of an EREA project launched in January, 1998 with the participation of CIRA, DLR, FFA (now FOI), INTA and ONERA. The main objective of the project is to demonstrate...
München, Techn. Univ., Diss., 2003.
München, Techn. Univ., Diss., 2003 (Nicht für den Austausch).
Open-source-Software-Entwicklung : Analyse und Aufwandsschätzung an einem Beispiel / (2002)
Wien, WirtschaftsUniversität, Thesis (doctoral), 2001.
Bestimmung des Reflexionsverhaltens eines Spänestrals an einer festen Wand (2000)
Um die Entwicklung und Konstruktion von Absaughauben für Holzbearbeitungsmaschinen wirtschaftlicher und effektiver zu gestalten, sollder Konstrukteur über ein Programm verfügen, das ihm das...
Koch, Stefan, Schneider, Georg
This paper presents first results from research into open source projects from a software engineering perspective. The research methodology employed relies on public data retrieved from the...
Koch, Stefan; Schneider, Georg
This paper presents first results from research into open source projects from a software engineering perspective. The research methodology employed relies on public data retrieved from the...
Bestimmung des Reflexionsverhaltens eines Spänestrals an einer festen Wand (2000)
Um die Entwicklung und Konstruktion von Absaughauben für Holzbearbeitungsmaschinen wirtschaftlicher und effektiver zu gestalten, soll der Konstrukteur über ein Programm verfügen, das ihm das...
Abstract-This paper presents first results from research into open source projects from a software engineering perspective. The research methodology employed relies on public data retrieved from the...
This paper presents first results from research into open source projects from a software engineering perspective. The research methodology employed relies on public data retrieved from the...
Bernroider, Edward, Koch, Stefan
In diesem Diskussionspapier wird die Entscheidungsfindung bei der Auswahl betriebswirtschaftlicher Standardsoftware mit Hilfe einer empirischen Studie untersucht. Zunächst wird anhand der...
Aktivität der Sialyltransferasen im Serum von Prostatakarzinom-Patienten / (1999)
Heidelberg, Univ., Diss., 1999 (Nicht für den Austausch).
Münster (Westfalen), Universiẗat, Diss., 1999.
Virtual Notes: Annotations on the WWW for Learning Environments (1999)
Andreas Geyer-schulz, Stefan Koch, Georg Schneider, Computer Science
This paper describes Virtual Notes, small yellow stickers which can be freely placed on instrumented HTML-pages using standard Internet technology. In a teaching and research environment they provide...
Edward Bernroider, Stefan Koch
This study addresses the complex relationship between decision making for ERP investments and the consideration of organizational impact under 2 different perspectives: Enterprise Resource Planning...
Using Weakest Precondition for Software Process Model Reuse (1999)
This paper describes a method to determine the possibility of combining two or more process models using an approach similar to the proof of (partial) correctness of algorithms by determining the...
Koch, Stefan, Bischof, Werner, Gill, Hardial, Müller, Ulf
The high volume point to multipoint market demands lowest cost components for all building blocks of the system, particularly for the microwave circuits. Different types of MMICs, including frequency...
Beiträge zur Regelung von Induktionsmaschinen ohne Drehgeber / (1998)
Zugl.: Bochum, Universiẗat, Diss.
Karlsruhe, Univ., Diss., 1997.
Mikrofiche-Ausg.: Egelsbach ; Frankfurt (Main) ; St. Peter Port : Hänsel-Hohenhausen, 1995. 2 Mikrofiches.
Automatisierte Bereitstellung modularer Fertigungsmittel /--Stefan Koch. (1994)
Thesis--Technische Universität Berlin, 1993.
Zugl.: Dortmund, Universiẗat, Diss., 1993.
Thesis (doctoral)--Universität Düsseldorf, 1985.
Koch, Dorothee., Koch, Stefan.
Greifswald, Univ., Diss. A, 1984 (Nicht f.d. Austausch).
Koch, Stefan, Von Loringhoven, Arndt Freytag, Kahmann, Regine, Hofschneider, Peter Hans, Koshy, Rajen
The original figures 1 and 5 were incorrectly published in this paper. The revised figures are printed opposite.
Koch, Stefan, Von Loringhoven, Arndt Freytag, Kahmann, Regine, Hofschneider, Peter Hans, Koshy, Rajen
Hepatitis B virus (HBV) DNA is often found integrated in the genome of infected human liver cells and is supposed to be related to the development of primary liver carcinoma (PLC). Four clones of HBV...
Untersuchung über die Invarianzeigenschaften logischer Funktionen. (1975)
Diss. Nr. 5516 techn. Wiss. ETH Zürich 1975. (KA).
Untersuchung über die invarianzeigenschaften logischer Funktionen / (1974)
Proefschrift E.T.H. Zürich.
In this paper, we propose to explore possible benefits of communication and coordination tools in open source projects using data envelopment analysis (DEA), a general method for efficiency...
Data and analyses sharing to support research on free/libre open source software A Debate (1970)
Evangelia Berdou, Kevin Crowston, Greg Madey, Megan Conklin, Stefan Koch, Walt Scacchi
Research on FLOSS has relied on several different kinds of scientific evidence, such as the archives created by the FLOSS developers, versioned code repositories, mailing list messages and bug and...
In this paper, we propose to arrive at an assessment and evaluation of open source projects based on an analysis of their growth rates in several aspects. These include code base, developer number,...
Conceptual Modelling as a New Entry in the Bazaar: The Open Model Approach (1970)
Stefan Koch, Stefan Strecker, Ulrich Frank
The present contribution proposes to transfer the main principles of open source software development to a new context: conceptual modelling; an activity closely related to software development. The...
Association of Csk to VE-cadherin and inhibition of cell proliferation
Baumeister, Ulf, Funke, Ruth, Ebnet, Klaus, Vorschmitt, Henrik, Koch, Stefan, Vestweber, Dietmar
Vascular endothelial cadherin (VE-cadherin) mediates contact inhibition of cell growth in quiescent endothelial cell layers. Searching for proteins that could be involved in VE-cadherin signaling, we...
Association of Csk to VE-cadherin and inhibition of cell proliferation
Baumeister, Ulf, Funke, Ruth, Ebnet, Klaus, Vorschmitt, Henrik, Koch, Stefan, Vestweber, Dietmar
Vascular endothelial cadherin (VE-cadherin) mediates contact inhibition of cell growth in quiescent endothelial cell layers. Searching for proteins that could be involved in VE-cadherin signaling, we...
In this paper we will analyse sourcing decisions in the finance sector, dealing with a mature area, IT outsourcing and a relatively new field, operations outsourcing. For introducing this topic, we...
Effort modeling and programmer participation in open source software projects
This paper develops models for programmer participation and effort estimation in open source software projects and employs the results to assess the efficiency of open source software creation....
Babbin, Brian A., Koch, Stefan, Bachar, Moshe, Conti, Mary-Anne, Parkos, Charles A., Adelstein, Robert S., ...
Epithelial cell motility is critical for self-rejuvenation of normal intestinal mucosa, wound repair, and cancer metastasis. This process is regulated by the reorganization of the F-actin...