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.
Results
Showing 1 to 20 of 25 for “"task accuracy"”.
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Proximity Navigation for Map-Based Interfaces: Generalizing Menu Design for Multiple Dimensions
… were used to perform simple and compound tasks. The goal of this study was to investigate the effectiveness of design guidelines on response time, preferences, and navigation and task accuracy. Results showed relationships exist among navigation and task accuracy, response time, and …
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Understanding the Impact of Communication Delays on Distributed Team Interaction
… and performed a collaborative problem solving task, using audioconferencing and videoconferencing technologies. During the task, participants verbally shared and discussed information in order to solve a fictitious terror plot. Communication between team members was delayed by 0 ms, 800, or …
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The Effects of the Density of Reinforcement on the Maladaptive Behaviors of a Child With Autism
… behaviors during a motor imitation teaching task. High densities of reinforcement produced fewer occurrences of maladaptive behavior than low densities of reinforcement. Experiment 2 analyzes the effects of density of reinforcement during the same teaching tasks as in experiment 1 on …
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Theory of Mind in Bipolar Disorder: A Pilot Descriptive Study
… = 20), using the “Reading the Mind in the Eyes Task” (Eyes Task) and the Animal Task developed to control for nonsocial response demands of the Eyes Task. Measures of depressive and anxious symptoms were taken using self-report scales. Interview measures of depressive and manic symptoms were …
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Augmenting Inputs using a Novel Figure-to-Text Pipeline to Assist Visual Language Models in Answering Scientific Domain Queries
… PlotQA and ChartQA. Results about the component accuracy, task accuracy, and question-answering with augmented inputs to a VLM show promise in the future capabilities of this work. By assisting VLMs with scientific imagery, we aim to not only enhance the capabilities of VLMs in specialized …
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Deep concept reasoning: beyond the accuracy-interpretability trade-off
… in striking a balance between task accuracy and interpretability. Existing solutions either sacrifice model transparency for task accuracy or vice versa, making it difficult to optimize both objectives simultaneously. This thesis includes four research works contributing in …
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Non-Invasive Brain Stimulation and the Enhancement of Working Memory
… cognitive process that is crucial for day to day tasks. Specifically, working memory allows for the processing and manipulation of information. Baddeley and Hitch’s (1974) model of working memory (WM) has been widely accepted and is the basis for many working memory studies. However, this …
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The medial prefrontal cortex and the dorsomedial striatum are necessary for working memory in rats: role of NMDA receptors
… striatum (dmSTR) using two working memory tasks. The trial unique non-match to location (TUNL) task is a delayed-non-match-to-sample visual working memory task performed in touchscreen equipped operant conditioning chambers. TUNL enables the concurrent assessment of delay-dependent and …
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Accelerating graph computation with system optimizations and algorithmic design
… in a heterogeneous graph in order to improve task accuracy. The original formulation of the problem uses a series of dense matrix multiplies that are space inefficient, and the matrix formulation makes it difficult to use fine-grained graph techniques like sampling. We formulate the GTN …
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Dissociating the brain regions involved in processing objective and subjective performance
When making perceptual decisions, easier tasks produce higher task accuracy and, naturally, higher confidence levels. We recognize the two distinctive cognitive processes, but it is challenging to judge exactly how decision and confidence processes affect different brain regions. In the current …
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The Impact of Prefrontal Cortex "Warm Up" on Immediate Cognitive Reappraisal Ability in Older Adolescents with Elevated Symptoms of Depression
… through PFC “warm up” with a working memory task. Additionally, the study examined moderators of intervention response, as well as cognitive correlates of self-reported CR use.</p> <p>Participants included 48 older adolescents (mean age=19.1, 89% female) with elevated symptoms of depression …
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Context awareness for wearable computers
… useful to enhance user proficiency in everyday tasks. A wearable, context–aware computer system and a set of evaluation tasks are devised to investigate this premise. A photograph diary study is carried out to elicit defining features of a broad range of everyday activities. These features are …
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The Effects of Intermittent Theta Burst Stimulation on Working Memory in Depressed Patients
… of iTBS treatment. We used the n-back (2-back) task to test working memory during functional magnetic resonance imaging (fMRI) scan. Participants received a fMRI scan before and after the final iTBS treatment. Participants also completed clinical measures (i.e., depression scales) before and …
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Visual-Spatial & Visual-Motor Function in Pediatric Heart Transplant Recipients
… cortex, with resulting difficulty during tasks requiring visual-spatial and visual-motor skills. This study compares the performance of children who received a heart transplant during infancy to that of nonclinical children with no medical complications on three visual-motor measures, …
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Effects of retinal disparity depth cues on cognitive workload in 3-D displays
… performance measures such as search time, search accuracy, and subjective image quality ratings. Few, if any, studies have been conducted to investigate the influence of stereopsis upon cognitive workload. This dissertation is a description of two experiments using 3-D images presented on a …
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Effects of Transparency and Haze on Trust and Performance During a Full Motion Video Analysis Task
<p>Automation is pervasive across all task domains, but its adoption poses unique challenges within the intelligence, surveillance, and reconnaissance (ISR) domain. When users are unable to establish optimal levels of trust in the automation, task accuracy, speed, and automation usage suffer (Chung …
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Understanding and improving the identification of concurrently presented earcons
… of the guidelines on more ecologically valid tasks. A set of modified and unmodified earcons which represented entries in a mobile diary system were compared. Overall task accuracy remained low, although participants rated the modified earcons to require significantly less subjective workload.
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Where are you talking about? Advances and Challenges of Geographic Analysis of Text with Application to Disease Monitoring
The Natural Language Processing task we focus on in this thesis is Geoparsing. Geoparsing is the process of extraction and grounding of toponyms (place names). Consider this sentence: "The victims of the Spanish earthquake off the coast of Malaga were of American and Mexican origin." Four toponyms …
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Motion cueing in driving simulators for research applications
… Point, MRP). Participants undertook two tracking tasks requiring both longitudinal (braking) and lateral (steering) vehicle control. Whilst drivers appeared unable to perceive a change in MRP from head level to a point 1.1m lower, the higher position (closer to the vestibular organs) did result in …
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An Empirical Study of the Effects of Context-Switch, Object Distance, and Focus Depth on Human Performance in Augmented Reality
… eye focus may result in additional time on user tasks and lower task accuracy. Thus, one of the goals of this research was to understand the impact of switching eye focus between real-world and virtual information on user task performance. Secondly, focus depth, which is an important parameter …
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