Essays about: "surrogate model"

Showing result 41 - 45 of 49 essays containing the words surrogate model.

  1. 41. Solving inverse problems in thermal engineering using a surrogate model

    University essay from KTH/Optimeringslära och systemteori

    Author : Sarra Fakhfakh; [2017]
    Keywords : ;

    Abstract : Through either measured or computed experimental data, inverse problems aim to determine parameters not straightforwardly given by measure. An inverse problem results in an optimization problem that requires many simulations of the direct problem which computations can be costly. One approach is to replace the reference model by a reduced model. READ MORE

  3. 42. Designing a Maintenance Support System Interface: Using the Activity Checklist Combined With the Sequence Model

    University essay from Linköpings universitet/Institutionen för datavetenskap

    Author : Jonna Magnusson; [2016]
    Keywords : ;

    Abstract : This thesis aims to investigate how a new interface of the Maintenance Ground Support System (MGSS) can be designed with insight generated from combining the Activity Checklist with the Sequence Model. Through observation of an expert user, deficiencies and qualities of the system should be raised. READ MORE

  4. 43. Exploring the spatial relationship between NDVI and rainfall in the semi-arid Sahel with geographically weighted regression

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Stefanos Georganos; [2016]
    Keywords : geomatics; rainfall; Sahel; scale dependency; non-stationarity; physical geography and ecosystem analysis; geographically weighted regression; Earth and Environmental Sciences;

    Abstract : The Normalized Vegetation Difference Index (NDVI) is frequently used as a surrogate for vegetation properties and is often correlated with climatic variables such as rainfall. However, studies have shown that conventional regression models used to study the spatial relationship between NDVI and rainfall are often plagued by non-stationarity and are scale dependent. READ MORE

  5. 44. Multidisciplinary analysis of jet engine components : Development of methods and tools for design automatisation in a multidisciplinary context

    University essay from Högskolan i Jönköping/JTH, Maskinteknik

    Author : Tim Heikkinen; Jakob Müller; [2015]
    Keywords : Aerospace; Concurrent Engineering; Design of Experiment; Knowledge Based Engineering; Manufacturability Analysis System; Multidisciplinary Analysis; Set-Based Engineering;

    Abstract : This thesis report presents the work of analysing current challenges in Multidisciplinary Analysis systems. Exemplary the system of an aerospace supplier, GKN Aerospace Sweden AB, is examined and several suggestions for improve- ment are implemented. READ MORE

  6. 45. HYDRODYNAMIC OPTIMIZATION OF TWO-DIMENSIONAL MULTI-ELEMENT TRAWL-DOOR SHAPES USING LOCAL SURROGATE MODELS AND ANALYSIS OF CONTROLLABLE TRAWL-DOOR SHAPES

    University essay from KTH/Kraft- och värmeteknologi

    Author : Magnus Juliusson; [2013]
    Keywords : ;

    Abstract : The study is motivated by the quest to lower the fuel consumption of trawlers and reduce green house gas emissions. Conventional trawl-doors contribute to about one third of the trawlers fuel consumption. Design and optimization of trawl-doors using computational models is vital in minimizing the fuel consumption. READ MORE