Sökning: "artificial neural networks"

Visar resultat 1 - 5 av 116 avhandlingar innehållade orden artificial neural networks.

  1. 1. Artificial neural networks applications in morphometric and landscape features analysis

    Detta är en avhandling från Stockholm : KTH

    Författare :Amir Houshang Ehsani; Fredrich Quiel; Wolter Arnberg; [2007]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY Other technology Environmental engineering; TEKNIKVETENSKAP Övriga teknikvetenskaper Miljöteknik;

    Sammanfattning : In this thesis a semi-automatic method is developed to analyze morphometric features and landscape elements based on Self Organizing Map (SOM) as a unsupervised Artificial Neural Network algorithm. Analysis and parameterization of topography into simple and homogenous land elements (landform) can play an important role as basic information in planning processes and environmental modeling. LÄS MER

  2. 2. Rainfall-Runoff Modelling Using Artificial Neural Networks (ANNs)

    Detta är en avhandling från Department of Water Resources Engineering, Lund Institute of Technology, Lund University

    Författare :Aman Mohammad Kalteh; [2007]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hydrogeology; geographical and geological engineering; Hydrogeologi; teknisk geologi; teknisk geografi; Self-organizing map; Feed-forward multilayer perceptron; Forecasting; Hydrological modelling; Missing values; Rainfall-runoff modelling; Estimation; Artificial neural networks;

    Sammanfattning : Over the last decades or so, artificial neural networks (ANNs) have become one of the most promising tools for modelling hydrological processes such as rainfall-runoff processes. In most studies, ANNs have been demonstrated to show superior result compared to the traditional modelling approaches. LÄS MER

  3. 3. Implementing artificial neural networks in microsimulation

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Magnus Åström; [2001]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Byggproduktion; Construction Engineering and Management;

    Sammanfattning : This licentiate thesis presents a work focused on investigating the possibility of using "artificial methods" such as artificial neural networks (ANN) as an analytical alternative to the conventional technique of regression. The work has been concentrated towards two different modules in the SVERIGE microsimulation model, an earnings module used for predicting individual earnings and a property value module used for predicting real estate prices. LÄS MER

  4. 4. Artificial Neural Networks (ANN) in the Assessment of Respiratory Mechanics

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Gaetano Perchiazzi; Göran Hedenstierna; Björn Jonson; [2004]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Physiology; artificial neural networks; respiratory system compliance; respiratory system resistance; respiratory system time constant; intrinsic positive end expiratory pressure; PEEPi; animal model; acute lung injury; oleic acid; Otis model; Fysiologi; MEDICINE Physiology and pharmacology Physiology; MEDICIN Fysiologi och farmakologi Fysiologi;

    Sammanfattning : The aim of this thesis was to test the capability of Artificial Neural Networks (ANN) to estimate respiratory mechanics during mechanical ventilation (MV). ANNs are universal function approximators and can extract information from complex signals. LÄS MER

  5. 5. Combinatorial optimization and artificial neural networks

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Mattias Ohlsson; [1995]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fysicumarkivet A:1995:Ohlsson;

    Sammanfattning : [abstract missing].... LÄS MER