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 23 for “"Statistical regularities"”.
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Neural Encoding of Prior Experience in Sensorimotor Behavior
… holds that the nervous system learns statistical regularities in the environment to optimize behavior based on past experiences. The main challenge in evaluating this hypothesis is to reconcile conceptual views that have historically been developed at different scales. At the …
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Maintenance and Metalearning of Time Interval Representations
… built around evolutionary and experience-based statistical regularities in the world. This thesis uses a sensorimotor time production task to investigate different types of transformation and noise that exist between observation and action. First, I will propose a task which utilizes memory of a …
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Assessing the Implicitness of Visual Statistical Learning at the Individual Level
<p>Previous research has examined visual-statistical learning at the individual level but have used measurements which are not sensitive enough to detect differences at the individual level. This study investigates temporal visual-statistical learning but uses a recently modified task designed to …
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Revisiting the CAPM and the Fama-French Multi-Factor Models: Modeling Volatility Dynamics in Financial Markets
… t models which are shown to account for all the statistical regularities in the data. This family of models provides an appropriate basis for revisiting the empirical adequacy of the CAPM and the Fama-French multi-factor models, as well as other models, such as alternative asset pricing models …
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Statistical Adequacy and Reliability of Inference in Regression-like Models
… to models that do not adequately capture the statistical regularities in the data and do not faithfully represent the phenomenon of interest. In addition, the researcher is unable to disentangle the statistical and substantive sources of error and thus incapable of using the statistical …
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A Complex Adaptive Systems Approach to Personality and Social Psychology through Design Sciences
… and social psychology focus on identifying statistical regularities between variables, resulting in a limited understanding of how these relationships are generated. A complex adaptive systems (CAS) approach offers a theoretical lens through which existing approaches can be understood from a …
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A Complex Adaptive Systems Approach to Personality and Social Psychology through Design Sciences
… and social psychology focus on identifying statistical regularities between variables, resulting in a limited understanding of how these relationships are generated. A complex adaptive systems (CAS) approach offers a theoretical lens through which existing approaches can be understood from a …
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Soft Morphological Computation
… the usefulness of these interactions depends on statistical regularities, or structure, that appear in the stimuli. To this end, robots should appropriately employ their morphology and their actions, to influence the system-environment interactions such that structure can arise in the stimuli. In …
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Human visual perception under real-world illumination
… Here I argue that the visual system exploits the statistical regularities of real-world illuminations to achieve stable estimates of shape and surface reflectance properties. Specifically, I suggest that the visual system derives measurements from specular reflections that are (i) diagnostic of …
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Predictions in a dynamic world: the adaptive role of the Active Prediction Network
… linguistic predictions based on long-term statistical regularities, the neural mechanisms supporting active prediction, the ability to flexibly anticipate semantic information in novel or atypical contexts, remain poorly understood. Across three functional magnetic resonance imaging (fMRI) …
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How predictable : modeling rates of change in individuals and populations
… in individual human behavior, and to capture statistical regularities in change at the population level, in three pieces: i) a model of individual rate of change as a function of search and finite resources, ii) a structural model of population level change in urban economies, and iii) a …
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Sensory representations optimized for the natural environment
… this, our brain needs to take advantage of the statistical regularities of our visual environment. In this thesis, I systematically explore how different aspects of natural stimulus statistics can impact and determine perceptual behavior and sensory representation in both biological and …
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The construction and evaluation of statistical models of melodic structure in music perception and composition
… The thesis proposed in this dissertation is that statistical models which acquire knowledge through the induction of regularities in corpora of existing music can, if examined with appropriate methodologies, provide significant insights into the cognitive processing involved in music perception …
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Enriching models of natural language with auxiliary data
… generally solve language tasks by deriving statistical regularities of sequences of arbitrary tokens supplied as training data. Humans have a much richer notion of language, however. For one thing, they understand that language refers to objects aid actions in the real world, which enables …
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Perception, expectation and uncertainty in autism
… to update information about the underlying statistical regularities in the task. In chapter 7, I use a visual statistical learning task to assess how well participants were able to implicitly acquire high-level predictive statistical information. The results suggest that autistic individuals …
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The Discovery of perceptual structure from visual co-occurrences in space and time
… I argue that perceptual organization reflects statistical regularities in the environment. When visual primitives occur together much more often than one would expect by chance, we may learn to associate those primitives and to form a perceptual group. The first half of the thesis deals with …
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INVESTOR ATTENTION AND SENTIMENT
… to changes in attention. I demonstrate that the statistical regularities can be exploited by simple volatility trading strategies in the US to produce significant risk adjusted profits. Secondly, I study the relationship between weather and stock market activity using a new perspective that does …
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Human Activity Analysis
… that are characterized by a motion texture, or statistical regularities in space and time. A single frame is inadequate to distinguish such activities, and it may be difficult to track the detailed sequence of body and object elements because of occlusions or temporal aliasing. Further, such …
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Mind-craft: Exploring the relation between "digital" visual experience and orientation in visual contour perception
<p>Visual perception depends fundamentally on statistical regularities in the environment to make sense of the world. One such regularity is the orientation anisotropy typical of natural scenes; most natural scenes contain slightly more horizontal and vertical information than oblique information. …
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The neurocognitive mechanisms of perceptual inference in autism
… different levels of autistic traits identify statistical regularities at a comparable level to one another, autistic traits play a role in how individuals update their expectations once a change is introduced. Chapter 5 examined how these behavioural findings relate to inhibitory …
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