TY - CHAP
A1 - Zähl, Philipp M.
A1 - Biewendt, Marcel
A1 - Wolf, Martin
A1 - Eggert, Mathias
T1 - Requirements for Competence Developing Games in the Environment of SE Competence Development
T2 - Angewandte Forschung in der Wirtschaftsinformatik 2022
N2 - Many of today’s factors make software development more and more complex, such as time pressure, new technologies, IT security risks, et cetera. Thus, a good preparation of current as well as future software developers in terms of a good software engineering education becomes progressively important. As current research shows, Competence Developing Games (CDGs) and Serious Games can offer a potential solution.
This paper identifies the necessary requirements for CDGs to be conducive in principle, but especially in software engineering (SE) education. For this purpose, the current state of research was summarized in the context of a literature review. Afterwards, some of the identified requirements as well as some additional requirements were evaluated by a survey in terms of subjective relevance.
KW - software engineering
KW - requirements
KW - competence developing games
KW - systematic literature review
Y1 - 2022
SN - 978-3-95545-409-8
U6 - http://dx.doi.org/10.30844/AKWI_2022_05
N1 - Tagungsband zur 35. Jahrestagung des Arbeitskreises Wirtschaftsinformatik an Hochschulen für Angewandte Wissenschaften im deutschsprachigen Raum (AKWI) vom 11.09. bis 13.09.2022, ausgerichtet von der Hochschule für Technik und Wirtschaft Berlin (HTW Berlin) und der Hochschule für Wirtschaft und Recht Berlin (HWR Berlin)
SP - 73
EP - 88
PB - GITO
CY - Berlin
ER -
TY - JOUR
A1 - Weigand, Christoph
A1 - Collani, E. v.
A1 - Saniga, E.M.
T1 - Economic Adjustment Design for -Control Charts. E.v.Collani, E.M. Saniga, Ch. Weigand
JF - IIE Transactions / Institute of Industrial Engineers. 26 (1994), H. 6
Y1 - 1994
SN - 0569-5554
ER -
TY - JOUR
A1 - Weigand, Christoph
T1 - Optimal Production Schedule for a K Products Single Machine Problem
JF - Economic Quality Control. 9 (1994)
Y1 - 1994
SN - 0940-5151
SP - 91
EP - 101
ER -
TY - JOUR
A1 - Weigand, Christoph
T1 - A Solution to the Scheduling Problem Taking into Account Quality
JF - Operations research '91 : extended abstracts of the 16th Symposium on Operations Research held at the University of Trier at September 9 - 11, 1991 / [GMÖOR]. Peter Gritzmann ... (eds.)
Y1 - 1991
SN - 3790806080
N1 - Symposium on Operations Research ; (16, 1991, Trier)
SP - 373
EP - 375
PB - Physica-Verl.
CY - Heidelberg
ER -
TY - JOUR
A1 - Weigand, Christoph
T1 - Optimal Adjustment Policies
JF - Proceedings of the First Umeå-Würzburg Conference in Statistics : Kronlund Conference Center and University of Umeå, September 10 - 14, 1990 / ed. by Kurt Brännäs
Y1 - 1990
SN - 91-7174-564-5
N1 - Umeå-Würzburg Conference in Statistics <1, 1990>
SP - 147
EP - 158
PB - Univ. of Umeå
CY - Umeå
ER -
TY - JOUR
A1 - Weigand, Christoph
T1 - Technically Optimal Inspection Policy with Arithmetical Adaption
JF - IMA Journal of Management Mathematics. 14 (2003), H. 4
Y1 - 2003
SN - 1471-678X
N1 - weitere ISSN 1471-6798 (E)
SP - 357
EP - 371
ER -
TY - JOUR
A1 - Weigand, Christoph
T1 - Economically Optimal Inspection Policy with Geometrical Adaption
JF - Journal of Applied Statistics. 30 (2003), H. 5
Y1 - 2003
SN - 0266-4763
N1 - weitere ISSN 1360-0532 (E)
SP - 555
EP - 569
ER -
TY - JOUR
A1 - Weigand, Christoph
T1 - Economically Optimal Inspection Policy with Arithmetical Adaption
JF - Applied stochastic models and data analysis / [10th International Symposium on Applied Stochastic Models and Analysis, June 12-15 2001, Université Technologique de Compiègne] ; editors Gérard Govaert, Jacques Janssen, Nikolaos Limnios.
Y1 - 2001
N1 - ASDMA 2001
SP - 1010
EP - 1015
PB - Université Technologique de Compiègne
CY - Compiègne
ER -
TY - JOUR
A1 - Weigand, Christoph
T1 - Economically Optimal Adaptive Inspection Policies
JF - Economic Quality Control. 15 (2000), H. 1/2
Y1 - 2000
SN - 0940-5151
N1 - Printausgabe vorhanden: 43 Z 711
SP - 55
EP - 77
ER -
TY - JOUR
A1 - Weigand, Christoph
T1 - Economic Machine Adjustment in the Case of Product Screening .E.v.Collani, Ch. Weigand
JF - Statistical Papers. 33 (1992)
Y1 - 1992
SP - 171
EP - 184
ER -
TY - JOUR
A1 - Weigand, Christoph
T1 - On the Effects of SPC on Production Time
JF - Economic Quality Control. 8 (1993)
Y1 - 1993
SN - 0940-5151
SP - 23
EP - 61
ER -
TY - JOUR
A1 - Weigand, Christoph
T1 - A new Approach for Optimal Control of a Production process
JF - Economic Quality Control. 7 (1992)
Y1 - 1992
SN - 0940-5151
SP - 225
EP - 251
ER -
TY - JOUR
A1 - Weigand, Christoph
T1 - Defining Precisions for Reliable Measurement and Estimation Procedures
JF - Economic Quality Control. 24 (2009), H. 1
Y1 - 2009
SN - 0940-5151
SP - 5
EP - 33
PB - De Gruyter
CY - Berlin
ER -
TY - JOUR
A1 - Weigand, Christoph
T1 - Statistical Tests Based on Reliability and Precision
JF - Economic Quality Control : EQC ; international journal for quality and reliability
N2 - The construction of a statistical test is investigated which is based only on “reliability” and “precision” as quality criteria. The reliability of a statistical test is quantifiedin a straightforward way by the probability that the decision of the test is correct. However, the quantification of the precision of a statistical test is not at all evident. Thereforethe paper presents and discusses several approaches. Moreover the distinction of “nullhypothesis” and “alternative hypothesis” is not necessary any longer.
Y1 - 2012
U6 - http://dx.doi.org/10.1515/eqc-2012-0002
SN - 1869-6147
VL - 27
IS - 1
SP - 43
EP - 64
PB - De Gruyter
CY - Berlin
ER -
TY - CHAP
A1 - Weber, Ingo
A1 - Markovic, Ivan
A1 - Drumm, Christian
T1 - A conceptual framework for composition in business process management
T2 - Business Information Systems : 10th International Conference, BIS 2007, Poznan, Poland, April 25-27, 2007. Proceedings
Y1 - 2007
SN - 978-3-540-72035-5
U6 - http://dx.doi.org/10.1007/978-3-540-72035-5_5
SP - 54
EP - 66
PB - Springer
CY - Berlin, Heidelberg
ER -
TY - RPRT
A1 - Vieth, Matthias
A1 - Hammer, A.
A1 - Maier, F.
T1 - A critical analysis of the co-plot method
T2 - International University in Germany, School of Business Administration / Working paper
Y1 - 2005
IS - 32
PB - School of Business Administration, Intern. Univ. in Germany
CY - Bruchsal
ER -
TY - JOUR
A1 - Tran, Duc Hung
T1 - Multiple corporate governance attributes and the cost of capital – Evidence from Germany
JF - The British Accounting Review
N2 - This paper investigates the extent to which corporate governance affects the cost of debt and equity capital of German exchange-listed companies. I examine corporate governance along three dimensions: financial information quality, ownership structure and board structure. The results suggest that firms with high levels of financial transparency and bonus compensations face lower cost of equity. In addition, block ownership is negatively related to firms' cost of equity when the blockholders are other firms, managers or founding-family members. Consistent with the conjecture that agency costs increase with firm size, I find significant cost of debt effects only in the largest German companies. Here, the creditors demand lower cost of debt from firms with block ownerships held by corporations or banks. My findings demonstrate that a uniform set of governance attributes is unlikely to satisfy suppliers of debt and equity capital equally.
Y1 - 2018
U6 - http://dx.doi.org/https://doi.org/10.1016/j.bar.2014.02.003
SN - 0890-8389
VL - 46
IS - 2
SP - 179
EP - 197
PB - Elsevier
CY - Amsterdam
ER -
TY - JOUR
A1 - Stephan, Jürgen
A1 - Güth, Werner
T1 - Equilibrium Selection in the One Seller and Many Buyers Game / Güth, Werner, Stephan, Jürgen
JF - Zeitschrift für Nationalökonomie. Journal of Economics. 44 (1984), H. 3
Y1 - 1984
SN - 1617-7134
SP - 267
EP - 281
ER -
TY - JOUR
A1 - Schulte-Zurhausen, Manfred
A1 - Poznanska, K.
T1 - Kryteria klasyfikacji malych i srednich przedsiebiorstw = Kriterien zur Klassifizierung von kleinen und mittleren Unternehmen
JF - Przeglad Organizacji (1994)
Y1 - 1994
SP - 24
EP - 27
ER -
TY - CHAP
A1 - Schulte, Maximilian
A1 - Eggert, Mathias
T1 - Predicting hourly bitcoin prices based on long short-term memory neural networks
T2 - Proceedings of the International Conference on Wirtschaftsinformatik (WI) 2021
N2 - Bitcoin is a cryptocurrency and is considered a high-risk asset
class whose price changes are difficult to predict. Current research focusses
on daily price movements with a limited number of predictors. The paper at
hand aims at identifying measurable indicators for Bitcoin price movement s
and the development of a suitable forecasting model for hourly changes. The
paper provides three research contributions. First, a set of significant
indicators for predicting the Bitcoin price is identified. Second, the results of
a trained Long Short-term Memory (LSTM) neural network that predicts
price changes on an hourly basis is presented and compared with other
algorithms. Third, the results foster discussions of the applicability of neural
nets for stock price predictions. In total, 47 input features for a period of
over 10 months could be retrieved to train a neural net that predicts the
Bitcoin price movements with an error rate of 3.52 %.
Y1 - 2021
N1 - 16th International Conference on Wirtschaftsinformatik,
March 2021, Essen, Germany
ER -
TY - CHAP
A1 - Schuh, Günther
A1 - Gottschalk, Sebastian
A1 - Höhne, Tim
A1 - Attig, Philipp
ED - Mitsuishi, M.
T1 - Further Potentials of Smart Logistics
T2 - Manufacturing Systems and Technologies for the New Frontier
Y1 - 2008
SN - 978-1-84800-267-8
SN - 978-1-84800-266-1 (Printausgabe)
U6 - http://dx.doi.org/10.1007/978-1-84800-267-8_18
N1 - The 41St Cirp Conference On Manufacturing Systems, May 26-28, 2008, Tokyo, Japan
SP - 93
EP - 96
PB - Springer
CY - London
ER -
TY - CHAP
A1 - Schuh, Günther
A1 - Gottschalk, Sebastian Friedrich
A1 - Narr, Claus
A1 - Höhne, Tim
ED - Zäh, Michael F.
T1 - Adaptive logistics : information management for planning and control of small series assembly
T2 - 2nd International Conference on Changeable, Agile, Reconfigurable and Virtual Production (CARV 2007), Toronto, Ontario, Canada, 22-24 July 2007 : Book of Abstracts
Y1 - 2007
SN - 978-0-9783187-0-3
SP - 212
EP - 221
ER -
TY - JOUR
A1 - Schuh, G.
A1 - Gottschalk, S.
A1 - Höhne, Tim
T1 - High Resolution Production Management
JF - CIRP Annals
Y1 - 2007
U6 - http://dx.doi.org/10.1016/j.cirp.2007.05.105
SN - 0007-8506
VL - 56
IS - 1
SP - 439
EP - 442
ER -
TY - JOUR
A1 - Schneider, Felix
A1 - Tran, Duc Hung
T1 - On the relation between the fair value option and bid-ask spreads: descriptive evidence on the recognition of credit risk changes under IFRS
JF - Journal of Business Economics
Y1 - 2018
U6 - http://dx.doi.org/10.1007/s11573-015-0776-2
SN - 1861-8928
VL - 85
IS - 9
SP - 1049
EP - 1081
PB - Springer
CY - Berlin
ER -
TY - JOUR
A1 - Schmitz, Philipp
A1 - Weber, Martin
T1 - Buying and selling behavior of individual investors in option-like securities
JF - Die Betriebswirtschaft : DBW
N2 - We analyze the trading behavior of individual investors in option-like securities, namely bankissued warrants, and thus expand the growing literature of investors behavior to a new kind of securities. A unique data set from a large German discount broker gives us the opportunity to analyze the trading behavior of 1,454 investors, making 89,958 transactions in 6,724 warrants on 397 underlyings. In different logit regression, we make use of the facts that investors can speculate on rising and falling prices of the underlying with call and put warrants and that we also have information about the stock portfolios of the investors. We report several facts about the trading behavior of individual investors in warrants that are consistent with the literature on the behavior of individual investors in the stock market. The warrant investors buy calls and sell puts if the price of the underlying has decreased over the past trading days and they sell calls and buy puts if the price of the underlying has increased. That means, the investors follow negative feedback trading strategies in all four trading categories observed. In addition, we find strong evidence for the disposition effect for call as well as put warrants, which is reversed in December. The trading behavior is also influenced if the underlying reaches some exceptionally prices, e.g. highs, lows or the strike price. We show that hedging, as one natural candidate to buy puts, does not play an important role in the market for bank-issued warrants.
KW - Bank-issued Warrants
KW - Disposition Effect
KW - Negative Feedback Trading
KW - Trading Behavior
KW - Individual Investors
Y1 - 2012
U6 - http://dx.doi.org/10.2139/ssrn.2055088
SN - 0342-7064
VL - 72
IS - 5
SP - 409
EP - 426
PB - Schäffer-Poeschel
CY - Stuttgart
ER -
TY - JOUR
A1 - Schmitz, Philipp
A1 - Weber, Martin
T1 - Buying and selling behavior of individual investors in option-like securities
Y1 - 2007
SP - 1
EP - 36
ER -
TY - THES
A1 - Schmitz, Philipp
T1 - Empirical analyses of the trading behavior of individual investors in the warrant market
Y1 - 2007
N1 - Mannheim, Univ., Diss., 2007
ER -
TY - CHAP
A1 - Schmid, Beat F.
A1 - Lindemann, Markus
T1 - Elements of a reference model for electronic markets
T2 - System sciences : proceedings. Vol. 4: Internet and the digital economy track / Thirty-first Hawaii International Conference on Systems Science : HICSS'98, Big Island of Hawaii, January 6-9, 1998 / ed. by Robert W. Blanning and David R. King. IEEE catalog ; 98TB100216
Y1 - 1998
SN - 0-8186-8242-6
SP - 193
EP - 201
PB - IEEE Computer Society Pr.
CY - Los Alamos, CA
ER -
TY - CHAP
A1 - Rosemann, Michael
A1 - Eggert, Mathias
A1 - Voigt, Matthias
A1 - Beverungen, Daniel
T1 - Leveraging Social Network Data for Analytical CRM Strategies - The Introduction of Social BI.
T2 - ECIS 2012 Proceedings
Y1 - 2012
N1 - European Conference on Information Systems
(ECIS), 2012
ER -
TY - JOUR
A1 - Pietschmann, Bernd P.
A1 - Vahs, Dietmar
T1 - Change Management - Wie Sie Ihr Unternehmen fit für die Zukunft machen. Teil 1: Erfolgsfaktoren von Veränderungsprozessen
JF - News / ASU ; BJU : von Unternehmern für Unternehmer. Ausgabe Baden-Württemberg. 13 (1996), H. 5
Y1 - 1996
SP - 76
EP - 79
ER -
TY - JOUR
A1 - Pietschmann, Bernd P.
A1 - Vahs, Dietmar
T1 - Change Management - Wie Sie Ihr Unternehmen fit für die Zukunft machen. Teil 2: Prozeßmanagement - Von starren Strukturen zu flexiblen Prozessen
JF - News / ASU ; BJU : von Unternehmern für Unternehmer. Ausgabe Baden-Württemberg. 13 (1996), H. 6
Y1 - 1996
SP - 84
EP - 86
ER -
TY - JOUR
A1 - Pietschmann, Bernd P.
A1 - Ruhtz, Vanessa
T1 - Knowledge Management
JF - Personal : Zeitschrift für Human Resource Management. 53 (2001), H. 5
Y1 - 2001
SN - 0031-5605
SP - 242
EP - 249
ER -
TY - JOUR
A1 - Pietsch, Wolfram
A1 - Taudes, A.
T1 - Groupware Support for Interorganizational Courseware-Development. A Case Study / Pietsch, W. , Taudes, A.
JF - IM : die Fachzeitschrift für Information Management & Consulting (1994)
Y1 - 1994
SN - 0930-5181, 1616-1017
SP - 12
EP - 18
ER -
TY - JOUR
A1 - Pietsch, Wolfram
A1 - Steinbauer, Dieter
T1 - Business Process Reengineering
JF - Wirtschaftsinformatik. 36 (1994), H. 5
Y1 - 1994
SN - 0937-6429
SP - 502
EP - 505
ER -
TY - JOUR
A1 - Pietsch, Wolfram
A1 - Kurbel, Karl
A1 - Jung, R.
T1 - Modeling Knowledge about Long-term IS-Integration and Integration-oriented Reengineering with KADS / Kurbel, K., Jung, R., Pietsch, W.
JF - Distributed information systems in business / W. König ... (eds.)
Y1 - 1996
SN - 3-540-61094-4
PB - Springer
CY - Berlin [u.a.]
ER -
TY - JOUR
A1 - Pietsch, Wolfram
A1 - Kurbel, Karl
T1 - A Portable Implementation of Index Sequential Input-Output [Part 1] / Kurbel, Karl; Pietsch, W.
JF - Ada letters. 6 (1986), H. 2
Y1 - 1986
SN - 0736-721X
SP - 29
EP - 40
ER -
TY - JOUR
A1 - Pietsch, Wolfram
A1 - Kurbel, Karl
T1 - A Portable Implementation of Index Sequential Input-Output [Part 2] / Kurbel, Karl; Pietsch, W.
JF - Ada letters. 6 (1986), H. 3
Y1 - 1986
SN - 0736-721X
SP - 6
EP - 13
ER -
TY - JOUR
A1 - Pietsch, Wolfram
A1 - Kurbel, Karl
T1 - A Cooperative Work Environment for Evolutionary Software Development / Kurbel, K., Pietsch, W.
JF - Multi-user interfaces and applications : proceedings of the IFIP WG 8.4 Conference on Multi-User Interfaces and Applications, Heraklion, Crete, Greece, 24 - 26 September, 1990 / ed. by Simon Gibbs ...
Y1 - 1990
SN - 0-444-88760-1
N1 - Conference on Multi-User Interfaces and Applications <1990, Hērakleion>
SP - 115
EP - 127
PB - North-Holland Publ.
CY - Amsterdam [u.a.]
ER -
TY - JOUR
A1 - Pietsch, Wolfram
A1 - Kurbel, K.
A1 - Labentz, M.
T1 - Prototyping und Projektmanagement bei großen Entwicklungsteams / Kurbel, K., Labentz, M., Pietsch, W.
JF - Information management : IM ; Praxis, Ausbildung u. Forschung d. Wirtschaftsinformatik. 2 (1987), H. 1
Y1 - 1987
SN - 0930-5181
SP - 6
EP - 15
ER -
TY - CHAP
A1 - Pietsch, Wolfram
A1 - Herzwurm, Georg
A1 - Zander, Dietmar
T1 - Assuring quality of QFD-education in Germany
T2 - ISQFD'06: 12th International Symposium on QFD : Tokyo, 07.-09.2006
Y1 - 2006
SP - 1
EP - 6
ER -
TY - JOUR
A1 - Pietsch, Wolfram
A1 - Herzwurm, G.
T1 - QFD for Customer-Focused Requirements Engineering / Herzwurm, G., Pietsch, W.
JF - Proceedings : 8 - 12 September 2003, Monterey Bay, California, USA / sponsored by IEEE Computer Society Technical Council on Software Engineering (TCSE) ... In cooperation with ACM SigSOFT
Y1 - 2003
SN - 0769519806
N1 - International Requirements Engineering Conference ; (11, 2003, Monterey, Calif.)
SP - 330
EP - 338
PB - IEEE Computer Society
CY - Los Alamitos, Calif. [u.a.]
ER -
TY - JOUR
A1 - Pietsch, Wolfram
T1 - Risk-based Deployment of Standard Software Rollout Processes - a pragmatic approach
JF - QFD : transactions from the Eleventh Symposium on Quality Function Deployment, [June 12 - 18, 1999, Novi, Michigan] / QFD Institute
Y1 - 1999
SN - 1889477117
N1 - Symposium on Quality Function Deployment ; (11, 1999, Novi, Mich.) Online unter: http://www.herzwurm.de/Publikationen/daten/lit/deployment.pdf
SP - 349
EP - 359
PB - QFD Institute
CY - Ann Arbor, Mich.
ER -
TY - BOOK
A1 - Pietsch, Wolfram
T1 - Software quality management III : [... held in Seville in April 1995] / [Third International Conference on Software Quality Management]. Ed.: M. Ross
Y1 - 1995
SN - 1853123099
N1 - International Conference on Software Quality Management ; (3, 1995, Sevilla)
PB - Computational Mechanics Publ.
CY - Southampton [u.a.]
ER -
TY - JOUR
A1 - Pietsch, Wolfram
T1 - Customer-Oriented Specification and Evaluation of IT Service Level Agreements
JF - Software process improvement : Elektronische Ressource : 12th European conference ; proceedings / EuroSPI 2005, Budapest, Hungary, November 9 - 11, 2005. Ita Richardson ... (ed.)
Y1 - 2005
SN - 3-540-30286-7
N1 - Lecture notes in computer science ; 3792 ; EuroSPI <12, 2005, Budapest>
SP - 83
EP - 94
PB - Springer
CY - Berlin [u.a.]
ER -
TY - JOUR
A1 - Pietsch, Wolfram
T1 - IT Service Deployment
JF - QFD : transactions from International Symposium on QFD 2007 - Williamsburg, the Nineteenth Symposium on Quality Function Deployment ; September 7 - 8, 2007, Williamsburg, VA ; [companion document to the Thirteenth International and Nineteenth North American Symposium on Quality Function Deployment (ISQFD'07)] / [organized and hosted by the QFD Institute]
Y1 - 2007
SN - 1-889477-19-2
N1 - QFD 2007, 19th Symposium on Quality Function Deployment, Williamsburg, VA, US, Sep 7-8, 2007
SP - 203
EP - 212
PB - QFD Inst.
CY - Ann Arbor, Mich.
ER -
TY - CHAP
A1 - Pietsch, Wolfram
T1 - A framework for strategic positioning of IT-products
T2 - Software business : from physical products to software services and solutions : 4th International Conference on Software Business, ICSOB 2013; Potsdam; Germany; 11 June 2013 through 14 June 2013. (Lecture notes in business information processing ; 150)
N2 - IT Products are viewed and managed differently depending on the perspectives and the stage within the life cycle. A model is presented that integrates different perspectives and stages serving as an aid for the analysis of business models and focused positioning of IT-products. Four generic business models are analysed with regard to the product management function in general and the positioning field for IT-products specifically: off-the-shelf (license), license plus service, project, and system service (incl. cloud computing).
KW - Strategic Business Planning
KW - IT Products
KW - Business Models
KW - Product Management
Y1 - 2013
U6 - http://dx.doi.org/10.1007/978-3-642-39336-5_11
SP - 102
EP - 116
PB - Springer
CY - Berlin
ER -
TY - CHAP
A1 - Pietsch, Wolfram
T1 - A framework of quality function deployment
T2 - Quality management / eds.: M. Ross ... (Software quality management ; 3,1)
Y1 - 1995
SN - 1-85312-309-9
SP - 419
EP - 428
PB - Computational Mechanics Publ.
CY - Southhampton
ER -
TY - JOUR
A1 - Pietsch, Wolfram
T1 - Augmenting voice of the customer analysis by analysis of belief
JF - QFD-Forum
Y1 - 2015
SN - 1431-6951
IS - 30
SP - 1
EP - 5
ER -
TY - JOUR
A1 - Palmer, J. W.
A1 - Lindemann, Markus
T1 - Business models and market mechanisms : evaluating efficiency in consumer electronic markets
JF - Data base and advanced information systems. Bd. 34 (2003), H. 2
Y1 - 2003
SN - 0105-9912
SP - 23
EP - 38
ER -
TY - JOUR
A1 - Mueller, Tobias
A1 - Segin, Alexander
A1 - Weigand, Christoph
A1 - Schmitt, Robert H.
T1 - Feature selection for measurement models
JF - International journal of quality & reliability management
N2 - Purpose
In the determination of the measurement uncertainty, the GUM procedure requires the building of a measurement model that establishes a functional relationship between the measurand and all influencing quantities. Since the effort of modelling as well as quantifying the measurement uncertainties depend on the number of influencing quantities considered, the aim of this study is to determine relevant influencing quantities and to remove irrelevant ones from the dataset.
Design/methodology/approach
In this work, it was investigated whether the effort of modelling for the determination of measurement uncertainty can be reduced by the use of feature selection (FS) methods. For this purpose, 9 different FS methods were tested on 16 artificial test datasets, whose properties (number of data points, number of features, complexity, features with low influence and redundant features) were varied via a design of experiments.
Findings
Based on a success metric, the stability, universality and complexity of the method, two FS methods could be identified that reliably identify relevant and irrelevant influencing quantities for a measurement model.
Originality/value
For the first time, FS methods were applied to datasets with properties of classical measurement processes. The simulation-based results serve as a basis for further research in the field of FS for measurement models. The identified algorithms will be applied to real measurement processes in the future.
KW - Feature selection
KW - Modelling
KW - Measurement models
KW - Measurement uncertainty
Y1 - 2022
U6 - http://dx.doi.org/10.1108/IJQRM-07-2021-0245
SN - 0265-671X
IS - Vol. ahead-of-print, No. ahead-of-print.
PB - Emerald Group Publishing Limited
CY - Bingley
ER -
TY - JOUR
A1 - Moosdorf, Andreas
T1 - It’s not just the Talent, it’s the Knowledge Transfer Method
JF - GC Ticker
Y1 - 2009
IS - 1
SP - 16
EP - 16
ER -
TY - BOOK
A1 - Moosdorf, Andreas
T1 - The determinants of international knowledge transfer effectiveness - conceptual advances and empirical verification
Y1 - 2008
N1 - The University of Leeds > Leeds University Business School. Thesis (PhD)
ER -
TY - JOUR
A1 - Mischke, Winfried
T1 - Kurzkommentierung der §§ 433, 436, 446 - 453, 474 - 479 BGB
JF - LexisNexis : Elektronische Ressource / Recht (2009)
Y1 - 2009
ER -
TY - JOUR
A1 - Mischke, Winfried
T1 - Die Garantie im Kaufrecht
JF - Betriebs-Berater. 50 (1995), H. 22
Y1 - 1995
SN - 0340-7918
SP - 1093
EP - 1096
ER -
TY - BOOK
A1 - Maercker, Gisela
T1 - Efficient estimation in AR models with ARCH errors
Y1 - 1995
N1 - Bericht // Institute für Mathematik, Technische Universität Braunschweig ; 95,10
PB - Institute für Mathematik, Techn. Univ.
CY - Braunschweig
ER -
TY - BOOK
A1 - Maercker, Gisela
T1 - Statistical inference in conditional heteroskedastic autoregressive models
Y1 - 1997
SN - 3-8265-2486-1
N1 - Berichte aus der Mathematik ; Zugl.: Braunschweig, Techn. Univ., Diss., 1996
PB - Shaker
CY - Aachen
ER -
TY - BOOK
A1 - Mackenstein, Hans
A1 - Marsch, Steve
T1 - The international relations of the European Union / by Steve Marsh and Hans Mackenstein
Y1 - 2005
SN - 0-582-47293-8
PB - Pearson Education
CY - Harlow [u.a.]
ER -
TY - JOUR
A1 - Mackenstein, Hans
A1 - Jeffery, Charlie
T1 - Financial equalization in the 1990s : on the road back to Karlsruhe / Hans Mackenstein and Charlie Jeffery
JF - Recasting German federalism : the legacies of unification
Y1 - 1999
SN - 1-85567-579-x
SP - 155
EP - 176
PB - Pinter
CY - London
ER -
TY - BOOK
A1 - Mackenstein, Hans
T1 - The European system of central banks in relation to the Deutsche Bundesbank : a comparative study of the two institutions and their political and social environment / by Hans Wilhelm Mackenstein
Y1 - 1992
N1 - Birmingham, Univ., Diss., 1992
CY - Birmingham
ER -
TY - JOUR
A1 - Mackenstein, Hans
T1 - The role of Germany, Japan and the United States on the ECU-bond markets / Hans Wilhelm Mackenstein
JF - De pecunia. 3 (1991), H. 1
Y1 - 1991
SN - 1015-6283
SP - 113
EP - 150
ER -
TY - JOUR
A1 - Mackenstein, Hans
T1 - Books Reviewed - European Democratization since 1800 edited by J. Garrard, V. Tolz and R. White
JF - Democratization. 7 (2000), H. 4
Y1 - 2000
SN - 1351-0347
SP - 219
EP - 219
ER -
TY - JOUR
A1 - Mackenstein, Hans
T1 - Book Reviews - Cowie, Harry, Private Partnership and Public Networks in Europe
JF - Regional and federal studies. 9 (1999), H. 2
Y1 - 1999
SN - 1359-7566
SP - 111
EP - 111
ER -
TY - JOUR
A1 - Mackenstein, Hans
T1 - Book Reviews - Samardzic, Slobodan and Thomas Fleiner, Federalismus und Minderheitenproblem in Multiethnischen Gemeinschaften
JF - Regional and federal studies. 8 (1998), H. 3
Y1 - 1998
SN - 1359-7566
SP - 138
EP - 138
ER -
TY - JOUR
A1 - Mackenstein, Hans
T1 - Book Reviews - Morass, Michael; Regionale Interessen auf dem Weg in die Europäische Union: Strukturelle Entwicklung und Perspektiven der Interessenvermittlung Österreichischer und deutscher Ländesakteure im Rahmen der Europäischen Integration
JF - Regional and federal studies. 8 (1998), H. 1
Y1 - 1998
SN - 1359-7566
SP - 227
EP - 227
ER -
TY - JOUR
A1 - Lindemann, Markus
A1 - Schmid, Beat F.
T1 - Framework for specifying, building and operating electronic markets
JF - International journal of electronic commerce. Vol. 3 (1998/99), No. 2
Y1 - 1999
SN - 1086-4415
SP - 7
EP - 21
ER -
TY - CHAP
A1 - Lindemann, Markus
A1 - Runge, Alexander
T1 - Electronic contracting within the reference model for electronic markets
T2 - Proceedings of the Sixth European Conference on Information Systems, ECIS 1998, Aix-en-Provence, France, June 4-6, 1998 / Walter Baets (ed.)
Y1 - 1998
SN - 849238333X
SP - 44
EP - 59
PB - Euro-Arab Management School
ER -
TY - JOUR
A1 - Lindemann, Markus
A1 - Runge, Alexander
T1 - Permanent IT-support in electronic commerce transactions
JF - Electronic markets : the international journal of networked business. Vol. 7 (1997), iss. 1
Y1 - 1997
SN - 1422-8890
SP - 18
EP - 20
ER -
TY - CHAP
A1 - Kunfermann, Philipp
A1 - Drumm, Christian
T1 - Lifting XML schemas to ontologies - the concept finder algorithm
T2 - MEDIATE 2005 First International Workshop on Mediation in Semantic Web Services Proceedings of the First International Workshop on Mediation in Semantic Web Services (MEDIATE 2005)
Y1 - 2005
SP - 113
EP - 122
ER -
TY - JOUR
A1 - Kroll-Ludwigs, Kathrin
T1 - The Reform of German Maintenance Law
JF - The International Survey of Family Law
Y1 - 2018
SP - 85
EP - 100
ER -
TY - CHAP
A1 - Kroll-Ludwigs, Kathrin
ED - Boele-Woelki, Katharina
T1 - Unification of Conflict of Laws in Europe. Matrimonial Property Regimes
T2 - European Challenges in Contemporary Family Law
Y1 - 2008
SN - 978-90-5095-692-5
SP - 379
EP - 393
PB - Intersentia
CY - Antwerpen
ER -
TY - CHAP
A1 - Kroll-Ludwigs, Kathrin
T1 - Names of individuals
T2 - European Encyclopedia of Private International Law
Y1 - 2017
SN - 9781782547228
PB - Edward Elgar Publishing
CY - Cheltenham, UK
ER -
TY - CHAP
A1 - Kroll-Ludwigs, Kathrin
T1 - Small Claims Regulation
T2 - European Encyclopedia of Private International Law
Y1 - 2017
SN - 9781782547228
PB - Edward Elgar Publishing
CY - Cheltenham, UK
ER -
TY - CHAP
A1 - Kroll-Ludwigs, Kathrin
ED - Calliess, Gralf-Peter
T1 - Art. 5 Rom III-Regulation (choice of applicable law by the parties)
T2 - Rome Regulations : commentary
Y1 - 2015
SN - 9789041147547
PB - Wolters Kluwer
ET - 2nd ed.
ER -
TY - CHAP
A1 - Kroll-Ludwigs, Kathrin
ED - Colliess, Gralf-Peter
T1 - Art. 7 Rome III-Regulation (formal validity)
T2 - Rome Regulations : commentary
Y1 - 2015
SN - 9789041147547
PB - Wolters Kluwer
ET - 2nd ed.
ER -
TY - CHAP
A1 - Kohl, Philipp
A1 - Freyer, Nils
A1 - Krämer, Yoka
A1 - Werth, Henri
A1 - Wolf, Steffen
A1 - Kraft, Bodo
A1 - Meinecke, Matthias
A1 - Zündorf, Albert
ED - Conte, Donatello
ED - Fred, Ana
ED - Gusikhin, Oleg
ED - Sansone, Carlo
T1 - ALE: a simulation-based active learning evaluation framework for the parameter-driven comparison of query strategies for NLP
T2 - Deep Learning Theory and Applications. DeLTA 2023. Communications in Computer and Information Science
N2 - Supervised machine learning and deep learning require a large amount of labeled data, which data scientists obtain in a manual, and time-consuming annotation process. To mitigate this challenge, Active Learning (AL) proposes promising data points to annotators they annotate next instead of a subsequent or random sample. This method is supposed to save annotation effort while maintaining model performance.
However, practitioners face many AL strategies for different tasks and need an empirical basis to choose between them. Surveys categorize AL strategies into taxonomies without performance indications. Presentations of novel AL strategies compare the performance to a small subset of strategies. Our contribution addresses the empirical basis by introducing a reproducible active learning evaluation (ALE) framework for the comparative evaluation of AL strategies in NLP.
The framework allows the implementation of AL strategies with low effort and a fair data-driven comparison through defining and tracking experiment parameters (e.g., initial dataset size, number of data points per query step, and the budget). ALE helps practitioners to make more informed decisions, and researchers can focus on developing new, effective AL strategies and deriving best practices for specific use cases. With best practices, practitioners can lower their annotation costs. We present a case study to illustrate how to use the framework.
KW - Active learning
KW - Query learning
KW - Natural language processing
KW - Deep learning
KW - Reproducible research
Y1 - 2023
SN - 978-3-031-39058-6 (Print)
SN - 978-3-031-39059-3 (Online)
U6 - http://dx.doi.org/978-3-031-39059-3
N1 - 4th International Conference, DeLTA 2023, Rome, Italy, July 13–14, 2023.
SP - 235
EP - 253
PB - Springer
CY - Cham
ER -
TY - CHAP
A1 - Knackstedt, Ralf
A1 - Eggert, Mathias
A1 - Heddier, Marcel
A1 - Chasin, Friedrich
A1 - Becker, Jörg
T1 - The Relationship Of Is And Law - The Perspective Of And Implications For IS Research
T2 - ECIS 2013 Completed Research. 18
Y1 - 2013
N1 - Proceedings of the 21st European Conference on Information Systems
ER -
TY - CHAP
A1 - Knackstedt, Ralf
A1 - Eggert, Mathias
A1 - Heddier, Marcel
A1 - Chasin, Friedrich
A1 - Becker, Jörg
T1 - The Relationship of IS and Law - Insights into the German Online Car Registration Case
T2 - ECIS 2013 Completed Research. 18. Proceedings of the 21st European Conference on Information Systems
Y1 - 2013
ER -
TY - CHAP
A1 - Knackstedt, Ralf
A1 - Eggert, Mathias
A1 - Fleischer, Stefan
T1 - The Legal Perspective on Business to Government Reporting - A Conceptual Modeling Approach and Its Application in the Financial Sector
T2 - 45th Hawaii International Conference on System Sciences 2012
Y1 - 2012
SN - 978-0-7695-4525-7
U6 - http://dx.doi.org/10.1109/HICSS.2012.576
SP - 2309
EP - 2318
ER -
TY - JOUR
A1 - Klettke, Tanja
A1 - Homburg, Carsten
A1 - Gell, Sebastian
T1 - How to measure analyst forecast effort
JF - European Accounting Review
N2 - We introduce a new way to measure the forecast effort that analysts devote to their earnings forecasts by measuring the analyst's general effort for all covered firms. While the commonly applied effort measure is based on analyst behaviour for one firm, our measure considers analyst behaviour for all covered firms. Our general effort measure captures additional information about analyst effort and thus can identify accurate forecasts. We emphasise the importance of investigating analyst behaviour in a larger context and argue that analysts who generally devote substantial forecast effort are also likely to devote substantial effort to a specific firm, even if this effort might not be captured by a firm-specific measure. Empirical results reveal that analysts who devote higher general forecast effort issue more accurate forecasts. Additional investigations show that analysts' career prospects improve with higher general forecast effort. Our measure improves on existing methods as it has higher explanatory power regarding differences in forecast accuracy than the commonly applied effort measure. Additionally, it can address research questions that cannot be examined with a firm-specific measure. It provides a simple but comprehensive way to identify accurate analysts.
Y1 - 2015
U6 - http://dx.doi.org/10.1080/09638180.2014.909291
SN - 0963-8180
VL - 24
IS - 1
SP - 129
EP - 146
PB - Taylor & Francis
CY - London
ER -
TY - CHAP
A1 - Klein, Stefan
A1 - Lindemann, Markus
ED - Vogel, Douglas R.
T1 - New architectures for web-enabled EDI-applications and their impact on VANS
T2 - Global business in practice : proceedings of the Tenth International Bled Electronic Commerce Conference BLED '97, Bled, Slovenia, June 9-11 1997
Y1 - 1997
SP - 556
EP - 573
PB - Moderna organizacija
CY - Kranj
ER -
TY - JOUR
A1 - Kempt, Hendrik
A1 - Freyer, Nils
A1 - Nagel, Saskia K.
T1 - Justice and the normative standards of explainability in healthcare
JF - Philosophy & Technology
N2 - Providing healthcare services frequently involves cognitively demanding tasks, including diagnoses and analyses as well as complex decisions about treatments and therapy. From a global perspective, ethically significant inequalities exist between regions where the expert knowledge required for these tasks is scarce or abundant. One possible strategy to diminish such inequalities and increase healthcare opportunities in expert-scarce settings is to provide healthcare solutions involving digital technologies that do not necessarily require the presence of a human expert, e.g., in the form of artificial intelligent decision-support systems (AI-DSS). Such algorithmic decision-making, however, is mostly developed in resource- and expert-abundant settings to support healthcare experts in their work. As a practical consequence, the normative standards and requirements for such algorithmic decision-making in healthcare require the technology to be at least as explainable as the decisions made by the experts themselves. The goal of providing healthcare in settings where resources and expertise are scarce might come with a normative pull to lower the normative standards of using digital technologies in order to provide at least some healthcare in the first place. We scrutinize this tendency to lower standards in particular settings from a normative perspective, distinguish between different types of absolute and relative, local and global standards of explainability, and conclude by defending an ambitious and practicable standard of local relative explainability.
KW - Clinical decision support systems
KW - Justice
KW - Medical AI
KW - Explainability
KW - Normative standards
Y1 - 2022
U6 - http://dx.doi.org/10.1007/s13347-022-00598-0
VL - 35
IS - Article number: 100
SP - 1
EP - 19
PB - Springer Nature
CY - Berlin
ER -
TY - CHAP
A1 - Jarke, Matthias
A1 - Gebhardt, Michael
A1 - Jacobs, Stephan
A1 - Nissen, Hans W.
T1 - Conflict analysis across heterogeneous viewpoints: formalization and visualization
T2 - Proceedings of the 29th Annual Hawaii International Conference on System Sciences
Y1 - 1996
SN - 0-8186-7324-9
U6 - http://dx.doi.org/10.1109/HICSS.1996.493191
SP - 199
EP - 208
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Peters, Bettina
T1 - Innovation and Innovation Success in the German Manufacturing Sector. Econometric Evidence at Firm Level / Janz, N. and Peters, B.
Y1 - 2002
ER -
TY - JOUR
A1 - Janz, Norbert
A1 - Lööf, Hans
A1 - Peters, Bettina
T1 - Firm Level Innovation and Productivity, Is there a Common Story Across Countries?
JF - Problems and Perspectives in Management (2004)
Y1 - 2004
SN - ISSN 1727-7051
N1 - online download: http://businessperspectives.org/files/ppm/PPM_EN_2004_02_Janz.pdf
SP - 184
EP - 204
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Lööf, Hans
A1 - Peters, Bettina
T1 - Firm Level Innovation and Productivity, Is there a Common Story Across Countries?
Y1 - 2003
SN - ISSN 1727-7051
N1 - ZEW Diskussion Paper. No 03-26 Online : ftp://ftp.zew.de/pub/zew-docs/dp/dp0326.pdf
PB - Zentrum für Europäische Wirtschaftsforschung ZEW
CY - Mannheim
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Licht, Georg
A1 - Ebling, Günther
A1 - Niggemann, Hiltrud
T1 - Innovation in the Service Sector. Selected Facts and Some Policy Conclusions / Licht, G., G. Ebling, N. Janz, H. Niggemann
Y1 - 1999
PB - European Commission
CY - Luxembourg
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Licht, Georg
T1 - Innovation Activities and European Patenting of German Firms. A Panel Data Analysis / Janz, N., G. Licht
Y1 - 2002
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Gottschalk, Sandra
A1 - Hempell, Thomas
A1 - Peters, Bettina
T1 - Innovation Activities in the German Economy. Report on Indicators from the Innovation Survey 2000 (English translation) / Janz, N., S. Gottschalk, T. Hempell, B. Peters, G. Ebling und H. Niggemann
Y1 - 2002
PB - ZEW Zentrum für Europäische Wirtschaftsforschung
CY - Mannheim
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Gottschalk, Sandra
T1 - Innovation Dynamics and Endogenours Market Structue. An Econometric Investigation with Aggregated Innovation Survey Data / Gottschalk, S. und N. Janz
Y1 - 2001
N1 - ZEW-Discussion Paper 01-39 online unter ftp://ftp.zew.de/pub/zew-docs/dp/dp0139.pdf
PB - ZEW Zentrum für Europäische Wirtschaftsförderung
CY - Mannheim
ER -
TY - JOUR
A1 - Janz, Norbert
A1 - Goedhuys, Micheline
A1 - Mohnen, Pierre
T1 - What drives productivity in Tanzanian manufacturing firms: technology or business environment? / Goedhuys, Micheline ; Janz, Norbert ; Mohnen, Pierre
JF - The European Journal of Development Research. 20 (2008), H. 2
Y1 - 2008
SN - 1743-9728
SP - 199
EP - 218
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Goedhuys, Micheline
A1 - Mohnen, Pierre
T1 - Knowledge-based productivity in "low-tech" industries : evidence from firms in developing countries / Goedhuys, Micheline ; Janz, Norbert ; Mohnen, Pierre
Y1 - 2008
N1 - Working paper series // United Nations University, UNU-MERIT ; 2008,007
PB - UNU-MERIT
CY - Maastricht
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Goedhuys, Micheline
A1 - Mohnen, Pierre
T1 - What drives productivity in Tanzanian manufacturing firms: technology or institutions? / Goedhuys, Micheline ; Janz, Norbert ; Mohnen, Pierre
Y1 - 2006
N1 - Working paper series // United Nations University, UNU-MERIT ; 2006,037
PB - UnU-MERIT
CY - Maastricht
ER -
TY - JOUR
A1 - Janz, Norbert
A1 - Goedhuys, Micheline
A1 - Mairesse, Jacques
A1 - Mohnen, Pierre
T1 - Micro-evidence on innovation and development (MEIDE): an introduction / Goedhuys, Micheline ; Janz, Norbert ; Mairesse, Jacques ; Mohnen, Pierre
JF - The European Journal of Development Research. 20 (2008), H. 2
Y1 - 2008
SN - 1743-9728
SP - 167
EP - 171
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Ebling, Günther
A1 - Niggemann, Hiltrud
A1 - Stahl, Harald
T1 - 2nd Community Innovation Survey. 1st Interim Report. Report prepared for Eurostat / Ebling, G., N. Janz, H. Niggemann und H. Stahl
Y1 - 1998
PB - ZEW Zentrum für Europäische Wirtschaftsförderung
CY - Mannheim
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Ebling, Günther
A1 - Göggerle, J.
A1 - Licht, Georg
T1 - The Longitudinal Aspect of Innovation Surveys / G. Ebling, J. Göggerle, N. Janz, G. Licht und H. Stahl
Y1 - 1998
PB - ZEW Zentrum für Europäische Wirtschaftsförderung
CY - Mannheim
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Ebling, Günther
A1 - Gottschalk, Sandra
A1 - Peters, Bettina
T1 - Innovation Activities in the German Economy: Report on indicators from the Innovation Survey 2001 (english translation) / Janz, N., G. Ebling, S. Gottschalk, B. Peters und T. Schmidt
Y1 - 2002
PB - ZEW Zentrum für Europäische Wirtschaftsforschung
CY - Mannheim
ER -
TY - JOUR
A1 - Janz, Norbert
A1 - Ebling, Günther
A1 - Gottschalk, Sandra
A1 - Niggemann, Hiltrud
T1 - The Mannheim Innovation Panels (MIP and MIP-S) of the Centre for European Economic Research (ZEW) / Janz, N., G. Ebling, S. Gottschalk und H. Niggemann
JF - Schmollers Jahrbuch : Zeitschrift für Wirtschafts- und Sozialwissenschaften ; journal of applied social science studies. 121 (2001)
Y1 - 2001
SN - 0342-1783
SP - 123
EP - 129
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Ebling, Günther
A1 - Gottschalk, Sandra
A1 - Niggemann, Hiltrud
T1 - Prospects of the German Economy: Innovation Activities in the Manufacturing Sector. Survey 1999 Report to the Federal Ministry of Education and Research (English translation) / Janz, N., G. Ebling, S. Gottschalk und H. Niggemann
Y1 - 2000
PB - ZEW Zentrum für Europäische Wirtschaftsforschung
CY - Mannheim
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Ebling, Günther
A1 - Gottschalk, Sandra
A1 - Niggemann, Hiltrud
T1 - Services in the Future: Innovation Activities in the Service Sector. Survey 1999 (English translation) / Janz, N., G. Ebling, S. Gottschalk und H. Niggemann
Y1 - 2000
PB - ZEW Zentrum für Europäische Wirtschaftsforschung
CY - Mannheim
ER -
TY - BOOK
A1 - Janz, Norbert
A1 - Ebling, Günther
A1 - Gottschalk, Sandra
A1 - Niggemann, Hiltrud
T1 - 2nd Community Innovation Survey. Final Report. Report prepared for Eurostat / Ebling, G. , S. Gottschalk, N. Janz und H. Niggemann
Y1 - 1999
PB - ZEW Zentrum für Europäische Wirtschaftsforschung
CY - Mannheim
ER -