Articles

A Different Kind of Magic: Revisioning the Figure of the Witch

C. L. ROBINSON

Textes et Genres

2011, vol. 4, pp.447-157

Departments: Languages & Cultures


A Framework for Stakeholder Oriented Mindfulness: Case of RFID Implementation at YCH Group

T. S. H. Teo, S. C. SRIVASTAVA, C. Ranganathan, J. W. K. Loo

European Journal of Information Systems

March 2011, vol. 20, n°2, pp.201-220

Departments: Informations Systems and Operations Management, GREGHEC (CNRS)

Keywords: RFID, YCH Group, Mindfulness, Stakeholder, Implementation


Implementation of innovative technology in organizations is often fraught with challenges. Past literature on mindfulness suggests that mindful implementation of innovative solutions facilitates success and enhances effectiveness for the organization. Integrating insights from the mindfulness and stakeholder perspectives, we present and analyze a longitudinal case study of Radio Frequency Identification (RFID) implementation at YCH Group, a leading logistics provider in the Asia-Pacific region. Our objectives are to examine key attributes of mindfulness as well as identify specific organizational routines that fostered mindfulness at YCH that ultimately paved the way for effective implementation of RFID technology. Important lessons can be learnt from how YCH instituted organizational routines that enabled them to mindfully implement RFID, by explicitly considering both internal and external stakeholders

A Newsvendor Model with Initial Inventory and Two Salvage Opportunities

C. VAN DELFT, A. Cheaitou, Z. Jemai, Y. Dallery

Journal on Systemics, Cybernetics and Informatics

2011, vol. 9, n°3, pp.30-36

Departments: Informations Systems and Operations Management, GREGHEC (CNRS)

Keywords: Newsvendor model, Initial inventory, Lost sales, Salvage opportunities, Concave optimisation and threshold levels


In this paper, we develop an extension of the newsvendor model with initial inventory. In addition to the usual quantity ordered at the beginning of the horizon and the usual quantity salvaged at the end of the horizon, we introduce a new decision variable: a salvage opportunity at the beginning of the horizon, which might be used in the case of high initial inventory level. We develop the expression of the optimal policy for this extended model, for a general demand distribution. The structure of this optimal policy is particular and is characterized by two threshold levels. Some managerial insights are given via numerical examples.

A Petri Net Approach to Analyzing Behavioral Compatibility and Similarity of Web Services

X. LI, Y. FAN, Q. Z. SHENG, Z. MAAMAR, H. ZHU

IEEE Transactions on Systems, Man, and Cybernetics - A

2011, vol. 41, n°3, pp.510-521

Departments: Informations Systems and Operations Management, GREGHEC (CNRS)


A Similarity-Based Approach to Prediction

I. GILBOA, O. Lieberman, D. Schmeidler

Journal of Econometrics

May 2011, vol. 162, n°1, pp.124-131

Departments: Economics & Decision Sciences, GREGHEC (CNRS)


Assume we are asked to predict a real-valued variable yt based on certain characteristics xt = (x1t , . . . , xdt), and on a database consisting of (x1i, . . . , xdi , yi) for i = 1, . . . , n. Analogical reasoning suggests to combine past observations of x and y with the current values of x to generate an assessment of y by similarity-weighted averaging. Specifically, the predicted value of y, yst , is the weighted average of all previously observed values yi, where the weight of yi, for every i = 1, . . . , n, is the similarity between the vector x1t, . . . , xdt, associated with yt , and the previously observed vector, x1i , . . . , xdi. The ''empirical similarity'' approach suggests estimation of the similarity function from past data. We discuss this approach as a statistical method of prediction, study its relationship to the statistical literature, and extend it to the estimation of probabilities and of density functions.Keywords:Density estimationEmpirical similarityKernelSpatial models


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