Sökning: "root mean square error"
Visar resultat 1 - 5 av 34 avhandlingar innehållade orden root mean square error.
1. Empirical Studies in Consumption, House Prices and the Accuracy of European Growth and Inflation Forecasts
Sammanfattning : This thesis consists of four essays: Essay 1: The Role of Wealth in the Aggregated Consumption Function using an Error Correction Approach: Swedish Evidence from the years 1970 - 1993, an aggregated consumption function based on the life cycle hypothesis using the error correction methodology is estimated for Sweden. Aggregate wealth is spilt into net financial and housing wealth. LÄS MER
2. Pre-testing and specification search in an autoregressive moving average process with extension to unit root cases
Sammanfattning : Several methods are applied in well defined contexts in the search for an appropriatestatistical model to fit a data set. Preliminary tests of significance for this end aretermed pre-testing. The aim of this study was to investigate some of the consequencesof such pre-testing in a few specific time series processes. LÄS MER
3. Predicting methane production in dairy cows
Sammanfattning : Methane is a potent greenhouse gas, to which enteric fermentation from ruminants contributes significantly. Reliable and accurate predictions of methane (CH₄) production from dairy cows would be of interest to develop mitigation strategies and for national inventories. LÄS MER
4. Least squares modification of Stokes formula with application to the Estonian geoid
Sammanfattning : Many applications in geodesy,geophysics and engineering require physically defined heightsrelated to an equipotential surface of the Earth, thegeoid.During the last two decades theincreased need for refined geoid models has been driven by thedemands of users of GPS, who nowadays must transformGPS-derived geodetic heights into orthometric heights, makingthem compatible with the local vertical datum. LÄS MER
5. Fuel-efficient driving strategies
Sammanfattning : This thesis is concerned with fuel-efficient driving strategies for vehicles driving on roads with varying topography, as well as estimation of road grade and vehicle mass for vehicles utilizing such strategies. A framework referred to as speed profile optimization (SPO), is introduced for reducing the fuel or energy consumption of single vehicles (equipped with either combustion or electric engines) and platoons of several vehicles. LÄS MER