Essays about: "differentiell evolution"

Found 3 essays containing the words differentiell evolution.

  1. 1. Application of Topic Models for Test Case Selection : A comparison of similarity-based selection techniques

    University essay from Linköpings universitet/Programvara och system

    Author : Kim Askling; [2019]
    Keywords : test automation; test case selection; machine learning; latent dirichlet allocation; differential evolution; testautomation; testfallsselektion; maskininlärning; latent dirichlet allocation; differentiell evolution;

    Abstract : Regression testing is just as important for the quality assurance of a system, as it is time consuming. Several techniques exist with the purpose of lowering the execution times of test suites and provide faster feedback to the developers, examples are ones based on transition-models or string-distances. READ MORE

  2. 2. Intermetallic Compound Formation in Ni-Ti-Fe Powder Mixtures

    University essay from Lunds universitet/Materialteknik

    Author : Tea Bertilsson; [2018]
    Keywords : Phase Evolution; Ni-Ti-Fe System; Intermetallics; Powder Metallurgy; Reactive Sintering; DSC; SEM; EDS; XRD; Technology and Engineering;

    Abstract : The Ni-Ti system has a broad range of applications, in areas as diverse as biomedicine and robotics. This is in large due to the NiTi intermetallic compound, which exhibits the shape memory effect. In addition to this property, the intermetallic compound is also biocompatible, has good mechanical properties and good corrosion resistance. READ MORE

  3. 3. Differential Beam-Forming Using Two-Dimensional Antenna Arrays in an LTE FDD System

    University essay from Linköpings universitet/KommunikationssystemLinköpings universitet/Tekniska fakulteten

    Author : Fredrik Stenmark; [2015]
    Keywords : Antenna Array; Beam Focusing; Beam-Forming; Feedback Process; Long Term Evolution; Precoding;

    Abstract : Basstationer med flera antenner kan aktivt styra signalenergi mot en mottagare med hjälp av lobformning, vilket ger högre datatakt och lägre strömförbrukning än med en enda antenn. Lobformning kräver dock att kanalen skattas till varje antenn och i ett FDD-system måste denna skattning återkopplas till basstationen från mottagaren, vilket innebär en opraktiskt stor overhead, speciellt när loberna blir smalare. READ MORE