Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 27 for “"temporal sampling"”.
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Resolving the evolution of Oesophageal Adenocarcinoma using spatial and temporal sampling
… sequencing, another way of overcoming sampling bias of the heterogeneous tissue is through circulating tumour DNA (ctDNA). Liquid biopsy sampling also has been proven to be highly prognostic in multiple cancer types and recent advances in ctDNA detection have now provided a potential …
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Robust Content Identification and De-Duplication with Scalable Fisher Vector In video with Temporal Sampling
… a frame significance function based non-uniform temporal sampling scheme on the video segments, to create a very compact binary representation of the content fragments that is agnostic to the typical coding and transcoding variations. The key innovations are a key point repeatability model that …
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Stormwater Monitoring: Evaluation of Uncertainty due to Inadequate Temporal Sampling and Applications for Engineering Education
… (i) evaluate the uncertainty due to inadequate temporal sampling of stormflow data, and (ii) develop equations using regional regression analysis that can be used to select a stormflow sampling frequency of a watershed. A case study demonstrates how the proposed methodology has been applied to …
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Characterization of uncertainty in remotely-sensed precipitation estimates
… degrees of accuracy, spatial resolution and temporal sampling. These retrievals have the advantage of almost full global coverage when compared to surface gauges and ground-based radars. However, there are uncertainties associated with each of these retrievals. This thesis focuses on …
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Reconfigurable Satellite Constellations for Mobile Target Tracking
… or high spatial resolution coverage with low temporal sampling. A reconfigurable constellation of satellites (ReCon) offers a way to augment these data sources with higher resolution coverage and improved temporal sampling. A ReCon can respond dynamically to different objectives throughout its …
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Combining Masked Autoencoding and Neural Fields for Multi-band Satellite Understanding
… incomplete spatial coverage and sparse temporal sampling make it challenging to develop a unified understanding of the environment. We aim to solve these challenges by creating a curated multi-modal satellite remote sensing dataset and presenting a novel architecture that learns a …
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A Study of Earth Radiation Budget Radiometric Channel Performance and Data Interpretation Protocols
… data is developed to compensate for sparse temporal sampling of Earth radiation budget data. The bias is shown to be significantly reduced in regions where the variability of the cloud cover is well accounted for by ISCCP data.
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Using Artificial Life to Design Machine Learning Algorithms for Decoding Gene Expression Patterns from Images
… These factors limit experiments to low rate temporal sampling of gene expression and prevent longitudinal studies within a single subject, reducing their statistical power. Thus methods for non-invasive measurements of gene expression are an important and current topic of research. An …
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Speech Production and Developmental Language Disorder in Children
… framework adopted for this investigation is the Temporal Sampling Framework. To identify potential differences in stress production, I will compare the speech production of familiar words by children with Developmental Language Disorder (DLD), age-matched controls (AMC) and younger language (YLC) …
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Surface deformation analysis over a hydrocarbon reservoir using InSAR with ALOS-PALSAR data
InSAR has been developed to estimate the temporal change on the surface of Earth by combining multiple SAR images acquired over the same area at different times. In the last two decades, in addition to conventional InSAR, numerous multiple acquisition InSAR techniques have been introduced, …
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Evaluating Chemical Crosslinking as a Tool for Enhancing DNA Damage Repair Interactome Analysis
… combine isolation of complexes with high temporal sampling, both of which are essential for characterizing complexes involved in transient repair processes. In this thesis, I have investigated whether chemical crosslinking incorporated into a DNA-based AP-MS workflow can improve the …
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Continental Arc Processes in British Columbia and Earthquake Processes in Virginia: Insights from Seismic Imaging
… data tests show was primarily limited by the temporal sampling rate. Improved temporal and spatial sampling could produce images with sharper resolution.
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Comparing fine-scale temporal environmental DNA (eDNA) sampling to camera trapping for detecting mammalian carnivores
… data at 25 sites along five rivers. Two eDNA sampling events were carried out 10 days apart to see if short term temporal sampling would validate results. 24 species were detected overall from the eDNA samples from five different orders, 22 species were detected in the second sampling period …
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Use of numerical simulations to investigate the performance of a virtual acoustic Doppler current profiler in characterizing flow
This research investigates the spatial and temporal sampling strategies of a virtual acoustic Doppler current profiler (ADCP) in characterizing flow fields and mean velocity profiles from stationary and moving platforms. This was accomplished in part using a data set with high temporal and spatial …
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Examination of the Potential of Structure-from-Motion Photogrammetry and Terrestrial Laser Scanning for Rapid Nondestructive Field Measurement of Grass Biomass
… of grassland systems. While destructive sampling of AGB is highly accurate, it is time consuming and often precludes repeat temporal sampling or sampling in sensitive ecosystems. Consequently, a number of nondestructive techniques that relate grass structural properties to AGB have been …
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Using environmental DNA metabarcoding to monitor fish biodiversity and assess anthropogenic barrier impacts on the river Mersey, UK
… Mersey, UK. In addition, a fine-scale spatial-temporal sampling approach was employed to investigate changes in fish communities below and above two weirs, from the Mersey estuary to the upper Mersey, in autumn and spring. Atlantic salmon was detected above and below Woolston weir, showing a …
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Computational Framework Enabling an EEG-based BCI for Neurofeedback in Language Disorders: The case of dyslexia
… by the neuroscience of speech literature and the temporal sampling theory of dyslexia and two potential neural patterns to target for neurofeedback were identified. The first was an hypothesis-driven theta/delta oscillatory band ratio observable in a story listening condition (connected speech). …
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Rhythmic perception and entrainment in 5-year-old children
… I examine whether there is a link between the temporal processing required to process rhythmic entrainment in both phonological awareness skills and music. The data are interpreted with respect to a theoretical framework linking music and language based on temporal sampling. The ‘temporal …
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Understanding terrestrial organic carbon export : a time-series approach
… limited by (i) analytical capability and (ii) temporal sampling resolution. To address issue (i), here I discuss methodological advancements and data analysis techniques for the Ramped PyrOx serial oxidation isotope method developed at WHOI. Ramped-temperature pyrolysis/oxidation coupled with …
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Forecasting groundwater contaminant plume development using statistical and machine learning methods
… improve site management. However, spatial and temporal data density and quality requirements for accurate plume forecasting have yet to be determined. In this study, extensive historical datasets from groundwater monitoring well samples were initially used with the intent to increase our …
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