Browsing Research publications by Title
Now showing items 21903-21922 of 23230
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Unsupervised learning of sparse spatio-temporal receptive fields through inhibitory plasticity; A model of the mammalian early visual system
(2019-11-14)Receptive fields of V1 simple cells in mammalian visual cortex are characterised as localized, oriented bandpass filters that respond to oriented contrast edges of a specific spatial scale in a particular area of the visual ... -
Unsupervised Learning-based Anomalous Arabic Text Detection
(2008)The growing dependence of modern society on the Web as a vital source of information and communication has become inevitable. However, the Web has become an ideal channel for various terrorist organisations to publish their ... -
An unsupervised neuromorphic clustering algorithm
(2019-08-01)Brains perform complex tasks using a fraction of the power that would be required to do the same on a conventional computer. New neuromorphic hardware systems are now becoming widely available that are intended to emulate ... -
Unsupervised Speaker Change Detection using Probabilistic Pattern Matching
(2006)This letter presents an investigation into the use of a probabilistic pattern matching approach for detecting speaker changes in audio streams. The experiments are conducted using clean speech as well as broadcast news ... -
Unsupervised Support Vector Machines for Nonlinear Blind Equalization in CO-OFDM
(2018-06-15)A novel blind nonlinear equalization (BNLE) technique based on the iterative re-weighted least square is experimentally demonstrated for single- and multi-channel coherent optical orthogonal frequency-division multiplexing. ... -
Untangling cosmic magnetic fields: Faraday tomography at metre wavelengths with LOFAR
(2018-11-29)The technique of Faraday tomography is a key tool for the study ofmagnetised plasmas in the new era of broadband radio-polarisation observations. In particular, observations at metre wavelengths provide significantly better ... -
Untangling multiple inequalities: intersectionality, work and globalisation
(2015-11)This article begins by outlining the position of women and work in the Global South, highlighting the precarity of their labour market participation. It then argues that the experiences of these women are often examined ... -
Untangling the complex food webs of tropical rainforest streams
(2024-08-06)Food webs depict the tangled web of trophic interactions associated with the functioning of an ecosystem. Understanding the mechanisms providing stability to these food webs is therefore vital for conservation efforts and ... -
Untangling the Conceptual Isssues Raised in Reydon and Scholz’s Critique of Organizational Ecology and Darwinian Populations
(2014-06)Reydon and Scholz raise doubts about the Darwinian status of organizational ecology by arguing that Darwinian principles are not applicable to organizational populations. Although their critique of organizational ecology’s ... -
Untersuchung und Therapie von Sexualstorungen
(Huber, 1993) -
The untrained eye : how languages for software specification support understanding in untrained users
(University of Hertfordshire, 1998)It is generally recognised that choice of languages can have a significant effect on the system development process, particularly in the early stages. In the development of interactive systems, it is essential that all ... -
The untrained eye : what makes a representation easy for novice readers to understand?
(University of Hertfordshire, 1997)It is generally recognised that choice of notations can have a significant effect on the system development process, particularly in the early stages of requirements capture and validation. In the development of interactive ... -
Untreated asthma, final height and sitting height/leg length ratio in Chile
(2006)Objective: There is uncertainty as to whether asthma has an effect on final height. We investigated using subjective and objective assessments whether untreated asthma is associated with final height, leg length and sitting ... -
Unusual Hard X-Ray Flares Caught in NICER Monitoring of the Binary Supermassive Black Hole Candidate AT2019cuk/Tick Tock/SDSS J1430+2303
(2023-03-14)The nuclear transient AT2019cuk/Tick Tock/SDSS J1430+2303 has been suggested to harbor a supermassive black hole (SMBH) binary near coalescence. We report results from high-cadence NICER X-ray monitoring with multiple ... -
Unveiling the 100 pc scale nuclear radio structure of NGC 6217 with e-MERLIN and the VLA
(2019-07-01)We present high-sensitivity 1.51 GHz e-MERLIN (e-Multi-Element Radio-Linked Interferometer Network) radio images of the nearby galaxy NGC6217. We resolve the compact radio source at the centre of NGC6217 for the first time, ... -
Unveiling the cause of hybrid morphology radio sources (HyMoRS)
(2020-01-01)Hybrid morphology radio sources (HyMoRS) are a rare group of radio galaxies in which differing Fanaroff & Riley morphologies (FR I/II) are observed for each of the two lobes. While they potentially provide insights into ... -
Unveiling the disc structure in ultraluminous X-ray source NGC 55 ULX-1
(2022-11-01)Despite two decades of studies, it is still not clear whether ULX spectral transitions are due to stochastic variability in the wind or variations in the accretion rate or in the source geometry. The compact object is also ... -
Unveiling the effect of interacting forecasted abiotic factors on growth and aflatoxin B1 production kinetics by Aspergillus flavus
(2020-05-30)The aim was to decipher the temporal impact of key interacting climate change (CC) abiotic factors of temperature (30 vs 37 °C), water activity (aw; 0.985 vs 0.930) and CO2 exposure (400 vs 1000 ppm) on (a) growth of ... -
Unveiling the Interplay: Flood Impacts on Transportation, Vulnerable Communities, and Early Warning Systems
(2024-04-19)Flooding's impact on transportation infrastructure is crucial, influencing urban mobility, economic activities, and societal resilience [1]. Disruptions in transportation networks during flood events significantly impede ...