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Fitness of Business Models for Digital Collaborative Platforms in Clusters: A Case Study

Publications associées (38)

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OnCall: defeating spikes with a free-market application cluster

George Candea

Even with reasonable overprovisioning, today's Internet application clusters are unable to handle major traffic spikes and flash crowds. As an alternative to fixed-size, dedicated clusters, we propose a dynamically-shared application cluster model based on ...

2004

Analysis of a Synonymy Network

Paolo De Los Rios, Jean-Cédric Chappelier, David Gfeller

The purpose of this report is to present the study of a linguistic network based on the relation of synonymy. The network has been extracted from a dictionary of synonyms in French. Due to errors and ambiguities in the data, the synonyms are not always gro ...

2004

Unknown-Multiple Speaker clustering using HMM

Hervé Bourlard, Jitendra Ajmera

An HMM-based speaker clustering framework is presented, where the number of speakers and segmentation boundaries are unknown \emph{a priori}. Ideally, the system aims to create one pure cluster for each speaker. The HMM is ergodic in nature with a minimum ...

2002

Unknown-Multiple Speaker clustering using HMM

Hervé Bourlard, Jitendra Ajmera

IDIAP2002

Synthesis of monodispersed model catalysts using softlanding cluster deposition

Laurent Klinger

In nanocatalysis, clusters deposited on solid, well-defined surfaces play an important role. For the detection of size effects it is, however, important to prepare samples consisting of deposited clusters of a single size, as their chemical properties chan ...

De Gruyter2002

Polyelectrolytes

Jutta Christine Wandrey

A review with 7 refs. on polyelectrolytes and some of their tech. applications is given. Criteria for the classification of polyelectrolytes are shown e.g. origin, chem. compn., mol. architecture, and electrochem. [on SciFinder (R)] ...

1997

Structural and Electronic-Properties of Small Copper Clusters - a First Principles Study

Alfredo Pasquarello, Roberto Car

Equilibrium geometries and electronic properties of neutral Cu-n (n = 2, 3, 4, 6, 8, 10) clusters are determined via first principles calculations which treat s and d electrons on an equal footing. Overall, we find ground state and local minimum structures ...

1995

Some considerations on "isoarithmic" and isoelectronic clusters

Wanda Andreoni

We briefly summarize with 14 refs. trends in the structural and electronic properties of small clusters of Na, Mg and Si. In particular, the validity of the spherical jellium picture is discussed and the applicability of the concepts used to classify magic ...

Springer1992