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Visar resultat 1 - 5 av 510 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Bayesian Cluster Analysis : Some Extensions to Non-standard Situations

   Författare :Jessica Franzén; Daniel Thorburn; Jukka Corander; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Cluster analysis; Clustering; Classification; Mixture model; Gaussian; Bayesian inference; MCMC; Gibbs sampler; Deviant group; Longitudinal; Missing data; Multiple imputation; Statistics; Statistik; Statistics; statistik;

   Sammanfattning : The Bayesian approach to cluster analysis is presented. We assume that all data stem from a finite mixture model, where each component corresponds to one cluster and is given by a multivariate normal distribution with unknown mean and variance. LÄS MER

3. 2. Cluster Initiatives as Intermediaries : A Study of their Management and Stakeholders

   Författare :Inessa Laur; Magnus Klofsten; Dzamila Bienkowska; Peter Van der Sijde; Linköpings universitet; []
   Nyckelord :Cluster; cluster initiatives; intermediary organization; regional development; entrepreneurship; success factors; actors stakeholders and activities;

   Sammanfattning : This dissertation offers a platform to understand the nature of cluster initiatives as a socio-economic phenomenon combining cluster, entrepreneurship and intermediary features. They are particular types of ventures facilitating networks and dialog platforms adjusted to local contexts and offering a way to enhance regional development. LÄS MER

4. 3. A pseudoparabolic reaction-diffusion-mechanics system : Modeling, analysis and simulation

   Författare :Arthur Vromans; Adrian Muntean; Martin Lind; Mohammad Asadzadeh; Karlstads universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; reaction-diffusion-mechanics model; parameter delimitation; parabolic-pseudoparabolic equations; weak solvability; Rothe method; periodic homogenization; Matematik; Mathematics;

   Sammanfattning : In this thesis, parabolic-pseudoparabolic equations are derived coupling chemical reactions, diffusion, flow and mechanics in a heterogeneous medium using the framework of mixture theory. The weak solvability in 1-D of the obtained models is studied. LÄS MER

5. 4. Mining Evolving and Heterogeneous Data : Cluster-based Analysis Techniques

   Författare :Vishnu Manasa Devagiri; Veselka Boeva; Niklas Lavesson; Shehroz Khan; Blekinge Tekniska Högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Domain Adaptation; Evolving Clustering; Heterogeneous Data; Multi-View Clustering; Streaming Data; Computer Science; Datavetenskap;

   Sammanfattning : A large amount of data is generated from fields like IoT, smart monitoring applications, etc., raising demand for suitable data analysis and mining techniques. LÄS MER

7. 5. Kunskap och innovation i ett moget kluster : En ekonomisk-geografisk studie av aluminiumindustrin i Småland-Blekinge

   Författare :Magnus Lagerholm; Anders Malmberg; Anders Waxell; Karl-Johan Lundquist; Uppsala universitet; []
   Nyckelord :Social and economic geography; economic geography; mature industry; cluster; agglomeration; systems of innovation; labour market mobility; Sweden; Kulturgeografi; kulturgeografi; Social and Economic Geography;

   Sammanfattning : The thesis aims at understanding mechanisms behind knowledge generation and learning in a mature cluster by analysing firms in south-east Sweden engaged in the development and manufacturing of aluminium products. The point of departure is in concepts and assumptions related to spatially concen-trated systems of similar and related firms and industries, such as agglomera-tions, clusters or innovation systems. LÄS MER