Hyperspectral Imagery Target Detection Using Improved Anomaly Detection and Signature Matching Methods

This research extends the field of hyperspectral target detection by developing autonomous anomaly detection and signature matching methodologies that reduce false alarms relative to existing benchmark detectors, and are practical for use in an operational environment. The proposed anomaly detection methodology adapts multivariate outlier detection algorithms for use with hyperspectral datasets containing tens of thousands of non-homogeneous, high-dimensional spectral signatures. In so doing, the limitations of existing, non-robust, anomaly detectors are identified, an autonomous clustering methodology is developed to divide an image into homogeneous background materials, and competing multivariate outlier detection methods are evaluated for their ability to uncover hyperspectral anomalies. To arrive at a final detection algorithm, robust parameter design methods are employed to determine parameter settings that achieve good detection performance over a range of hyperspectral images and targets, thereby removing the burden of these decisions from the user. The final anomaly detection algorithm is tested against existing local and global anomaly detectors, and is shown to achieve superior detection accuracy when applied to a diverse set of hyperspectral images. The proposed signature matching methodology employs image-based atmospheric correction techniques in an automated process to transform a target reflectance signature library into a set of image signatures. This set of signatures is combined with an existing linear filter to form a target detector that is shown to perform as well or better relative to detectors that rely on complicated, information-intensive, atmospheric correction schemes. The performance of the proposed methodology is assessed using a range of target materials in both woodland and desert hyperspectral scenes

Handbook of Mathematical Geosciences

This Open Access handbook published at the IAMG's 50th anniversary, presents a compilation of invited path-breaking research contributions by award-winning geoscientists who have been instrumental in shaping the IAMG. It contains 45 chapters that are categorized broadly into five parts (i) theory, (ii) general applications, (iii) exploration and resource estimation, (iv) reviews, and (v) reminiscences covering related topics like mathematical geosciences, mathematical morphology, geostatistics, fractals and multifractals, spatial statistics, multipoint geostatistics, compositional data analysis, informatics, geocomputation, numerical methods, and chaos theory in the geosciences

Digital marketing, elements of the public sector competition value chain in Barranquilla, (Colombia)

La organización en la actualidad están obligadas a generar mayores beneficios a sus consumidores para lograr mayor posicionamiento en el mercado, eso depende del manejo de factores de competitividad internos y externos que predominan en las organizaciones medianas en el sector de la publicidad digital en Barranquilla. El objetivo de esta investigación fue describir el marketing digital del sector publicitario. La investigación es descriptiva con diseño no experimental y transversal. La muestra estuvo conformada por 15 empresas, cumpliendo los criterios: Empresa mediana, con departamento de Marketing digital, domiciliada en Barranquilla. Los resultados fueron descripción el marketing digital del sector publicitario, de acuerdo a los factores internos y externos en estas empresas presentan donde existe una consistencia moderada en la dinámica de respuesta de la empresa ante factores externos y viceversa. Se concluyó que las empresas de este sector requieren de estrategias que promuevan el desarrollo de los indicadores internos de competitividad que respondan a los factores cambiantes externo.The organization is currently forced to generate greater benefits to its consumers to achieve greater market positioning, that depends on the management of internal and external competitiveness factors that predominates in medium-sized organizations in the digital advertising sector in Barranquilla. The objective of this research was to describe the digital marketing of the advertising sector. The research is descriptive with non-experimental and transversal design. The sample was composed by 15 companies, fulfilling the criteria: Medium company, with department of Digital Marketing, placed in Barranquilla. The results were a description digital marketing of the advertising sector, according of the internal and external factors in these companies present where there is a moderate consistency in the dynamics of the company’s response to external factors and vice versa. It was concluded that companies in this sector have difficulties in strategies that promote the development of internal competitiveness indicators that respond to changing external factors

The HBP1 tumor suppressor is a negative epigenetic regulator of MYCN driven neuroblastoma through interaction with the PRC2 complex

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Друга міжнародна конференція зі сталого майбутнього: екологічні, технологічні, соціальні та економічні питання (ICSF 2021). Кривий Ріг, Україна, 19-21 травня 2021 року

Second International Conference on Sustainable Futures: Environmental, Technological, Social and Economic Matters (ICSF 2021). Kryvyi Rih, Ukraine, May 19-21, 2021.Друга міжнародна конференція зі сталого майбутнього: екологічні, технологічні, соціальні та економічні питання (ICSF 2021). Кривий Ріг, Україна, 19-21 травня 2021 року