Essays about: "Absolute fields"

Showing result 1 - 5 of 26 essays containing the words Absolute fields.

  1. 1. Vattenbalansberäkningar som metod för bevattningsplanering : Efterhandsvalidering i svenska bevattningsförsök med olika bevattningsstrategier i vall

    University essay from SLU/Dept. of Soil and Environment

    Author : Carl Andås; [2023]
    Keywords : bevattning; Penman-Monteith; markvattenhaltsmätningar; evapotranspiration;

    Abstract : Bevattning för med sig många effekter som vore önskvärda i dagens svenska lantbruk, som präglas av ökade produktionsrisk till följd av höga produktionskostnader men samtidigt ökade avräkningspriser. Efterfrågan på bevattningskompetens och effektiv bevattningsplanering för att kunna hushålla med begränsade vattenresurser kan förväntas öka i vår tid. READ MORE

  3. 2. EVALUATING PERFORMANCE OF GENERATIVE MODELS FOR TIME SERIES SYNTHESIS

    University essay from Mälardalens universitet/Akademin för innovation, design och teknik

    Author : Muhammad Junaid Haris; [2023]
    Keywords : GAN; Generative Adversarial Network; VQ-VAE; Vector Quantized Variational AutoEncoder; AutoEncoder; VAE; Time Series; Synthesizing; Data Synthesis;

    Abstract : Motivated by successes in the image generation domain, this thesis presents a novel Hybrid VQ-VAE (H-VQ-VAE) approach for generating realistic synthetic time series data with categorical features. The primary motivation behind this work is to address the limitations of existing generative models in accurately capturing the underlying structure and patterns of time series data, especially when dealing with categorical features. READ MORE

  4. 3. Similarity metric for crowd trajectory evaluation on a per-agent basis : An approach based on the sum of absolute differences

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Karl Brunnberg; [2023]
    Keywords : Crowd Simulation; Trajectory; Similarity Metric; Virtual Agents; Crowd Perception; Folkmassasimulering; Färdväg; Likhetsmetrik; Virtuella Agenter; Folkmassaperception;

    Abstract : Simulation models that replicate realistic crowd behaviours and dynamics are of great societal use in a variety of fields of research and entertainment. In order to evaluate the accuracy of such models there is a demand for metrics and evaluation solutions that measure how well they simulate the dynamics of real crowds. READ MORE

  5. 4. Compact Digital Track Maps: Enhancing Train Traveller Information at the Crossing of Accuracy and Availability : A comparative analysis of algorithms for generating compact representations of railway tracks

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Adam Andersson; [2023]
    Keywords : Train positioning; Digital track map; Digital map generation; Position measurement; Global navigation satellite system; Cartography; Tågpositionering; Digitala spårkartor; Generering av digitala kartor; Positionsmätning; Satellitnavigation; Kartograf;

    Abstract : Trains are constrained to the railway tracks they operate on. This can be leveraged for absolute train positioning, where a train’s position can be mapped onto a digital track map (DTM). Extensive research has been dedicated to enhancing the accuracy of DTMs. READ MORE

  6. 5. Time-resolved x-ray diffraction study of longitudinal optical phonons in zincblende semiconductors

    University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

    Author : Lassi Linnala; [2022]
    Keywords : femtosecond THz radiation; ultrafast x-ray diffraction; pump-probe; longitudinal optical phonons; zincblende semiconductors; anharmonic decay; density functional perturbation theory; Physics and Astronomy;

    Abstract : Anharmonic decay of longitudinal optical (LO) phonons in zincblende semiconductors is not at present well characterized due to the polar and many-body nature of the problem. Femtosecond THz radiation offers a novel route to this study, as the interaction of this radiation is directly with the phonon lattice and these THz excited phonons do not have enough energy to excite electrons over the band gap. READ MORE