Sökning: "Hierarchical models"
Visar resultat 21 - 25 av 193 avhandlingar innehållade orden Hierarchical models.
21. Biologically-Based Interactive Neural Network Models for Visual Attention and Object Recognition
Sammanfattning : The main focus of this thesis is to develop biologically-based computational models for object recognition. A series of models for attention and object recognition were developed in the order of increasing functionality and complexity. LÄS MER
22. Spatial Mixture Models with Applications in Medical Imaging and Spatial Point Processes
Sammanfattning : Finite mixture models have proven to be a great tool for both modeling non-standard probability distributions and for classification problems (using the latent variable interpretation). In this thesis we are building spatial models by incorporating spatially dependent categorical latent random fields in a hierarchical manner similar to that of finite mixture models. LÄS MER
23. Dissipative formation of galaxies in hierarchical cosmology
Sammanfattning : A description and detailed tests of a numerical code for simulations of galaxy formation is presented. The dynamics is followed with fully adaptive and Lagrangian Smooth Particle Hydrodynamics (SPH) combined with a gravitational tree method. The severe numerical problem of sub-resolution clustering is solved by merging of gas particles. LÄS MER
24. Models and Methods for Development of DSP Applications on Manycore Processors
Sammanfattning : Advanced digital signal processing systems require specialized high-performance embedded computer architectures. The term high-performance translates to large amounts of data and computations per time unit. The term embedded further implies requirements on physical size and power efficiency. LÄS MER
25. Hierarchical Modeling and Analysis of Real Time Systems
Sammanfattning : UPPAAL is a tool for model-checking real-time systems developed jointly by Uppsala University and Aalborg University. It has been applied successfully in case studies ranging from communication protocols to multimedia applications. The tool is designed to verify systems that can be modeled as networks of timed automata. LÄS MER