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11	Lämningar Olsson, Maria January 2021 (has links) No description available. konst bildkonst lämningar valv performance installation essä grus sand sten spår grav källare ödekyrkogård byggarbetsplats fjällbäck asfalt berghäll bergrum gruva industrilokal bergmassa kroppsarbete utgrävning Visual Arts Bildkonst
12	Temporal Localization of Representations in Recurrent Neural Networks Najam, Asadullah January 2023 (has links) Recurrent Neural Networks (RNNs) are pivotal in deep learning for time series prediction, but they suffer from 'exploding values' and 'gradient decay,' particularly when learning temporally distant interactions. Long Short-Term Memory (LSTM) and Gated Recurrent Units (GRU) have addressed these issues to an extent, but the precise mitigating mechanisms remain unclear. Moreover, the success of feedforward neural networks in time series tasks using an 'attention mechanism' raises questions about the solutions offered by LSTMs and GRUs. This study explores an alternative explanation for the challenges faced by RNNs in learning long-range correlations in the input data. Could the issue lie in the movement of the representations - how hidden nodes store and process information - across nodes instead of localization? Evidence presented suggests that RNNs can indeed possess "moving representations," with certain training conditions reducing this movement. These findings point towards the necessity of further research on localizing representations. Recurrent Neural Networks (RNNs) Deep Learning Time Series Prediction Exploding Values Gradient Decay Long Short-Term Memory (LSTMs) Gated Recurrent Units (GRUs) Attention Mechanism Moving Representations Localizing Representations Computer and Information Sciences Data- och informationsvetenskap
13	Diel Temperature and Dissolved Oxygen Patterns in Sites with and without Planktonic Life Stage of Thompsodinium intermedium in Comal Springs, TX Gilpin, Cheryl 2012 May 1900 (has links) Between July 2009 and October 2011, a new habitat was found for a rarely reported freshwater dinoflagellate species, Thompsodinium intermedium - Comal Springs (Comal County), Texas. In 2011, diel in-situ monitoring in monospecific blooms of this species revealed previously undetected negative impacts on endangered species habitat availability associated with conditions of low flow levels, recorded at the U.S. Geological Survey gage # 08169000 on Texas Commission on Environmental Quality river segment 1811 station 12655. During a period of low springflow in the summer of 2011, late afternoon and early morning measurements of dissolved oxygen and temperature and presence of dinoflagellate blooms were monitored at six sites. Significant differences in diel fluctuations were found in all of these parameters among sites with and without the planktonic blooms. These fluctuations increased risk of hypoxia and hyperthermia conditions at sites of planktonic bloom events. Arrays of in-situ continuous monitoring temperature/light probes were used inside and outside of blooms. Wildlife and human health implications are that hypoxia and hyperthermia are known to promote conditions favorable to harmful microbes which may be transported from springs to coastal bays. In-situ data demonstrated that T. intermedium blooms, hypoxia, and hyperthermia occurred in the upper Comal headwaters. These natural environmental stressors may be avoidable if adequate springflows are maintained to buffer against these impacts. Freshwater dinoflagellate Karst spring ecohydrology drought low springflows temperature extremes hypoxia hyperthermia Comal Springs Comal River Etheiostoma fonticola Whooping Crane Grus americana interference with sewage detection Contact recreation endangered species protection Habtiat Conservation Plan Edwards Aquifer Heterelmis comalensis Stygobromus peckii E. coli springflow buffering stratification

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