Concept

Preuve empirique

Publications associées (257)

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2005

Voluntary technological disclosure as an efficient knowledge management device: an empirical study (Published)

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2005

‘Location is not enough!’: an Empirical Study of Location-Awareness in Mobile Collaboration

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There is an ever growing number of mobile learning applications based on location-awareness, However, there is still a lack of information concerning how it might impact socio-cognitive processes involved in collaboration. This is what the following empiri ...

IEEE Press2005

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Moving from the observation that drainage network configurations minimizing total energy dissipation are stationary solutions of the general equation describing landscape evolution, we review theoretical and observational evidence on river patterns and the ...

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Marketing in New Ventures: Theory and Empirical Evidence

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Marketing is considered to be of utmost importance for the success of new ventures. Therefore, research on entrepreneurial marketing has increased considerably since the late 1980s. Its findings are varied and vibrant, yet also large and extremely fragment ...

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Cast shadow segmentation using invariant colour features

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Shadows are integral parts of natural scenes and one of the elements contributing to naturalness of synthetic scenes. In many image analysis and interpretation applications, shadows interfere with fundamental tasks such as object extraction and description ...

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On the Use of A Priori Information for Sparse Signal Representations

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This report studies the effect of introducing a priori knowledge to recover sparse representations when overcomplete dictionaries are used. We focus mainly on Greedy algorithms and Basis Pursuit as for our algorithmic basement, while a priori is incorporat ...

2004

Confidence Measures in Multiple pronunciations Modeling For Speaker Verification

Hervé Bourlard

This paper investigates the use of multiple pronunciations modeling for User-Customized Password Speaker Verification (UCP-SV). The main characteristic of the UCP-SV is that the system does not have any {\it a priori} knowledge about the password used by t ...

2004

On the Use of A Priori Information for Sparse Signal Approximations

Pierre Vandergheynst, Lorenzo Granai, Oscar Divorra Escoda

This report is the extension to the case of sparse approximations of our previous study on the effects of introducing a priori knowledge to solve the recovery of sparse representations when overcomplete dictionaries are used. Greedy algorithms and Basis Pu ...

2004

Die Rolle des Corporate Foresight im Innovationsprozess: Ziele, Ausgestaltung und Erfahrungen am Beispiel der Siemens AG

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This article focuses on activities of corporate foresight that constitute one of the core elements of strategic innovation management. Hence, corporate foresight plays a crucial role for the mid- to longterm competitiveness of firms. It typically comprises ...

2003

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