Publications des institutions partenaires
The gift exchange in the Social Networks of Silicon Valley
Institution partenaire
English / 01/01/2003
The determinants of Internet financial reporting by Swiss companies
Institution partenaire
English / 01/01/2003
A selectivity model for fragmented relations : evaluated for different standard data distributions
Institution partenaire
English / 01/01/2002
Long-Run Effects of the Common Agricultural Policy for Switzerland: A Simulation Analysis
Institution partenaire
English / 01/01/2002
Comparative Political Economy of Wage Distribution: The Role of Partisanship and Labour Market Institutions
Through a pooled cross-section time-series analysis of the determinants of wage inequality in sixteen OECD countries from 1973 to 1995, we explore how political-institutional variables affect the upper and lower halves of the wage distribution. Our regression results indicate that unionization, centralization of wage bargaining and public-sector employment primarily affect the...
Institution partenaire
English / 01/01/2002
A Model for the Collaborative Design of Multi Point-of-View Terminological Knowledge Bases
Institution partenaire
English / 01/01/2002
Real-Time Synchronised Petri Nets
This paper presents the combination of two well established principles: the CO-OPN synchronisation mechanism, and the Merlin and Farber time Petri nets. Real-time synchronised Petri nets systems are then defined such that a Petri net is an object that can ask to be synchronised with another net, and whose transition firing is constrained by relative time intervals. Our proposal...
Institution partenaire
English / 01/01/2002
Towards a Secure and Efficient Model for Grid Computing using Mobile Code
Mobile code has often been mentioned as an attractive technol- ogy for distributing computations inside a Grid consisting of heterogeneous nodes interconnected by a large-scale network. We describe here a Java-based mobile agent model for a Grid infrastructure which addresses issues such as customizable distribution of computation, security, billing and accounting.
Institution partenaire
English / 01/01/2002
Minitrack Introduction: Trading of Intangible Goods (STTIG)
Institution partenaire
English / 01/01/2002
MobiHealth - innovative 2.5 / 3G mobile services and applications for healthcare
MobiHealth aims at introducing new mobile valueadded services in the area of healthcare, based on 2.5 (GPRS) and 3G (UMTS) technologies, thus promoting the use and deployment of GPRS and UMTS. This will be achieved by the integration of sensors and actuators to a Wireless Body Area Network (BAN). These sensors and actuators will continuously measure and transmit vital constants along...
Institution partenaire
English / 01/01/2002
A Wave-guide Model for Packetized Media Streaming in Lossless Networks
Optimal operation of network based multimedia applications requires a precise specification of the network parameters. Different models have been used in the past in calculating the behavior of the network and defining parameters like throughput and delays of packets, using among others fluid analogy. In this paper we extend the bundled packet level perspective towards the...
Institution partenaire
English / 01/01/2002
Degrees-of-freedom tests for smoothing splines
When using smoothing splines to estimate a function, the user faces the problem of choosing the smoothing parameter. Several techniques are available for selecting this parameter according to certain optimality criteria. Here, we take a different point of view and we propose a technique for choosing between two alternatives, for example allowing for two different levels of degrees of...
Institution partenaire
English / 01/01/2002
Welfare Rankings in the Presence of Contaminated Data
Stochastic dominance criteria are commonly used to draw welfare-theoretic inferences about comparisons of income distribution as well as ranking probability distributions in the analysis of choice under uncertainty. However, just as some measures of location and dispersion can be catastrophically sensitive to extreme values in the data it is also possible that conclusions drawn from...
Institution partenaire
English / 01/01/2002
High Breakdown Estimation of Multivariate Location and Scale With Missing Observations
In this paper, we consider the problem of outliers in incomplete multivariate data, when the aim is to estimate a measure of mean and covariance as it is the case for example in factor analysis. In such a situation the ER algorithm of Little and Smith (1987) which combines the EM algorithm for missing data and a robust estimation step based on an Mestimator could be used. However,...
Institution partenaire
English / 01/01/2002
Robust Inference with Binary Data
In this paper robustness properties of the maximum likelihood estimator (MLE) and several robust estimators for the logistic regression model when the responses are binary are analysed. It is found that the MLE and the classical Rao's score test can be misleading in the presence of model misspecification which in the context of logistic regression means either misclassification...
Institution partenaire
English / 01/01/2002
Robust Estimation and Inference for Generalised Latent Trait Models
The paper discusses the effect of model deviations such as data contamination on the maximum likelihood estimator (MLE) for a general class of latent trait models (citeNP{MoKn:00}). This is done with the use of the influence function (Hampel 1968, 1974) a mathematical tool to assess the robustness properties of any statistic, such as an estimator. Simulation studies show that the MLE...
Institution partenaire
English / 01/01/2002
The contentious politics of unemployment in Europe: Political claim-making, policy deliberation and exclusion from the labor market – A research outline
Institution partenaire
English / 01/01/2002
An empirical investigation in credit spread indices
Institution partenaire
English / 01/01/2001
Sorting out the effects of Switzerland's accession to the EU: A simulation analysis
Institution partenaire
English / 01/01/2001
The Political Economy of International Migration in a Ricardo-Viner Model
Institution partenaire
English / 01/01/2001
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