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 4278 for “"Category"”.
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The Derived Category and the Singularity Category
We prove an equivalence between the derived category of a variety and the equivari- ant/graded singularity category of a corresponding singular variety. The equivalence also holds at the dg level.
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Category captainship: delegation, participant selection and category extensions
… of three essays which study different aspects of category captainship, a new and increasingly popular category management strategy. In this strategy retailers delegate their control of product categories to one of the manufacturers operating within that category, who is referred to as the …
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Parametrized higher category theory
We develop foundations for the category theory of [infinity]-categories parametrized by a base occategory. Our main contribution is a theory of parametrized homotopy limits and colimits, which recovers and extends the Dotto-Moi theory of G-colimits for G a finite group when the base is chosen to be …
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Category information in real-world scenes: evaluation and reconstruction of human category spaces
… image-based feature spaces can approximate human category representations for real-world scenes. Similarity was used to assess category representation, and the category structure was visualized and compared by constructing geometric representations. Several feature spaces were tested, ranging from …
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Connectionist Modelling of Category Learning
… of exemplar-based connectionist models of category learning to offer accounts of learning about stimuli with variable dimensionality. Models which may simulate these tasks, such as the configural-cue network (Gluck & Bower, 1988b), appear to be unable to accurately simulate certain data …
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Comparing comparisons in category learning
Comparisons are central to category learning; yet very little research has been done to understand how comparisons affect what people learn. Prior work has established that different ways of learning affect what information learners acquire, suggesting that different types of comparisons may also …
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Kierkegaard's category of repetition: a reconstruction.
… Constantin Constantius) introduced the category of repetition as a paradigm of modern choughc. Greek t hought, he argued, belongs to the paradigm of recollection, and virtually the entire history of philosophy falls under this category. Modern thought can free itself from the hegemony of …
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Category and Space in the Ventral Stream
… in this thesis address the question of how category and space are represented in the brain. First, we asked whether object category is encoded in specialized modules or whether it is distributed throughout the ventral stream. To this means we conducted an fMRI adaptation experiment and …
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Equivariant LS-Category and Equivariant Topological Complexity
… of the orbit class to study equivariant LS-category and equivariant topological complexity. Equivariant LS-category was introduced by Marzantowicz in 1989, as a generalization of LS-category. Since then, equivariant LS-category has been studied by mathematicians and many results with di …
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Knowledge Selection in Category-Based Inductive Reasoning
Current theories of category-based inductive reasoning can be distinguished by the emphasis they place on structured and unstructured knowledge. Theories which draw on unstructured knowledge focus on associative strength, or temporal and spatial contiguity between categories. In contrast, accounts …
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Alignability and Prior Knowledge in Category Learning
… of structural alignment and prior knowledge in category learning. Structural alignment (Gentner, 1983, 1989) is a theory that claims that similarity comparisons entail a process of aligning the components of the things being compared, determining what corresponds to what. The experiments …
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Algorithms and Analysis for Multi-Category Classification
Third, we address an important algorithm in machine learning, the maximum margin classifier. Even with a conceptual understanding of how to extend maximum margin algorithms to more complex settings and performance guarantees of large margin classifiers, complex outputs render traditional approaches …
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A two-stage model of category construction
… of independent dimensions. A two-stage model of category construction is presented to specify the conditions under which FR categories would be produced. The first stage involved uni-dimensional sorting of most of the given exemplars into the prescribed number of groups. The second stage involves …
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Effects of background knowledge on category construction
… the effects of background knowledge on category construction. In category construction tasks, subjects are commonly given a set of instances and asked to sort the instances into two groups. Although natural categories seem to have a family resemblance (FR) structure, subjects rarely …
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Harnessing rare category trinity for complex data
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-04-06 without embargo terms
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On Lie Theory in the Verlinde Category
A symmetric tensor category arises by axiomatizing the basic properties of a representation category of a finite group A famous theorem of Deligne states that, in characteristic p = 0, any symmetric tensor category of moderate growth is essentially a representation category of an affine supergroup …
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Advanced terrain displays for transport category aircraft
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1991.
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Planar algebras: A category theoretic point of view
… starting from a 1-cell in a pivotal strict 2-category. We introduce the concept of affine representations of a planar algebra and prove some finiteness results for the affine representations of finite depth planar algebras. We also show that the radius of convergence of the dimension of an …
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