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 13 of 13 for “"segment boundaries"”.
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Generative Models for Retrieval of Video, Audio and Text Data
"We propose a general approach to audio segment retrieval, which allows a user to query audio data by an example audio segment of a short duration and to find similar segments. The basic idea of our approach is to first train a hidden Markov model (HMM) using the given example, it is called the …
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IMPROVED SEGMENTATION FOR AUTOMATED SEIZURE DETECTION USING CHANNEL-DEPENDENT POSTERIORS
… and offset of a seizure event difficult. Precise segmentation, defined as the ability to detect start and stop times within a fraction of a second, is a challenging research problem. In this dissertation, we improve seizure segmentation performance by developing deep learning technology that …
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Feature Extraction for Automatic Recognition of Telephone Speech
… two waveforms for the complete word. These are segmented according to the sign of their slope. The total changes that occur between segment boundaries are used to signify particular feature symbols. Thus two feature strings are produced to describe each word. Results of tests with the …
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Scalable algorithms for semi-automatic segmentation of electron microscopy images of the brain tissue
… a set of fast and scalable algorithms for segmenting very large 3D images of brain tissue. Currently, light and electron microscopy can now produce terascale 3D images within hours. Extracting the information about the shapes and connectivity of the neurons require fast and accurate image …
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Expressive Forms of Topic Modeling to Support Digital Humanities
… an approach to this problem by identifying segment boundaries that detect significant shifts of topic coverage. In order to identify segment boundaries, we embed a temporal segmentation algorithm around a topic modeling algorithm to capture such significant shifts of coverage. A key …
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A high-resolution Holocene fault activity history of the Aigion Shelf, Gulf of Corinth, Greece
… southern margin of the Gulf of Corinth. It is a segmented, N-dipping normal fault, which overlaps and is active concurrently with the older Western Eliki Fault. It forms the southern boundary to a graben structure that narrows eastwards, which is bounded to the north by a S-dipping segmented …
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Investigating the roles of candidate gap genes from the neuroblast timer series during axial patterning in the beetle Tribolium
… that play a central role in the process of segment patterning in Drosophila. Specifically, they interact to form the well-characterised ‘gap gene network’, which directs the formation of segment boundaries (through regulation of pair-rule genes), and the subsequent diversification of …
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Structure and evolution of an oceanic megamullion on the Mid-Atlantic ridge at 27N̊
… the same location within one spreading segment. Megamullion M1 formed while the spreading segment had only one inside comer on the west flank, and megamullion M2 formed after the segment developed double inside corners west of the axis and double outside corners east of the axis. The …
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A novel visual stimulation paradigm: exploiting individual primary visual cortex geometry to boost steady state visual evoked potentials (SSVEP)
… manipulating flicker-phase offsets among angular segments of a large annular stimulus. We found that by dividing the annulus into standard octants, flickering upper horizontal octants with opposite temporal phase to the lower horizontal ones, and left vertical octants opposite to the right …
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Seismic studies of 3-D elastic and anelastic structure of crust and upper mantle in Western China
… megathrust earthquakes may be limited by the segment boundaries. The anelastic structure of the Earth, in particular seismic attenuation, is more useful in characterizing the temperature and fluid content as well as predicting earthquake ground motion. We have done simulations on the major …
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From Cell Shape to Body Shape: Epithelial Morphogenesis in Drosophila melanogaster
… a role for DRhoGEF2 in the morphogenesis of segmental grooves, which are segmentally repeated tissue infoldings that form in the epidermis during mid-embryogenesis. Groove formation is associated with up-regulation of the groove cell-markers odd-skipped, crumbs and enabled, and we demonstrate …
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Structure and evolution of an oceanic megamullion on the Mid-Atlantic ridge at 27°N
… the same location within one spreading segment. Megamullion M1 formed while the spreading segment had only one inside comer on the west flank, and megamullion M2 formed after the segment developed double inside comers west of the axis and double outside comers east of the axis. The older …
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CENOZOIC EXTENSION OF THE LAKE TANGANYIKA RIFT, EAST AFRICA: STRUCTURES, TECTONOSTRATIGRAPHY AND PALEOENVIRONMENTAL RECONSTRUCTION
… the emergence of major structures and rift segment boundaries, and development of major drainages and linkages to upstream rift lakes. This study illustrates a shallow to deep progression of rift valley environments and then restriction of littoral habitats that might have influenced the …