A historic public health digital collection, developed by the Ruth Lilly Medical Library's Digital Initiatives Group, includes full-text public health bulletin issues;historic photos, drawings, and images;and a vi...
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Many countries, European and worldwide, have increasingly issued during the last decade electronically readable identity documents to their citizens, for different purposes and applications. However, a major character...
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An automatic music transcriber is a device that detects, without human interference, the musical gestures required to play a particular piece. Many techniques have been proposed to solve the problem of automatic music...
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In the recent Letter,1 we made a mistake in the X-ray photoelectron spectroscopy (XPS) spectra fitting of the Hf peaks in Figure 5(b) in the original article. H
In the recent Letter,1 we made a mistake in the X-ray photoelectron spectroscopy (XPS) spectra fitting of the Hf peaks in Figure 5(b) in the original article. H
The availability of a large number of processing nodes in a parallel and distributed computing environment enables sophisticated real time processing over high speed data streams, as required by many emerging applicat...
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The availability of a large number of processing nodes in a parallel and distributed computing environment enables sophisticated real time processing over high speed data streams, as required by many emerging applications. Sliding window stream joins are among the most important operators in a stream processing system. In this paper, we consider the issue of parallelizing a sliding window stream join operator over a shared nothing cluster. We propose a Bulk Synchronous Processing (BSP) framework, based on a fixed or predefined sequence of communication, to distribute the join processing loads over a shared-nothing cluster. We consider various processing and communication overheads while scaling over a large number of nodes, and propose solution methodologies to cope with the *** implement the algorithm over a cluster using a message passing system, and present the experimental results showing the effectiveness of the join processing algorithm.
Quantitative analysis of the dynamics of tiny cellular and subcellular structures in time-lapse cell microscopy sequences requires the development of a reliable multi-target tracking method capable of tracking numerou...
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Objective of this paper is to define an innovative control scheme to reduce congestion in freeway traffic systems via ramp metering. Such a control scheme is event-based and is composed of two control levels. At the l...
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ISBN:
(纸本)9781479906505
Objective of this paper is to define an innovative control scheme to reduce congestion in freeway traffic systems via ramp metering. Such a control scheme is event-based and is composed of two control levels. At the lower level, Model Predictive Control is applied: the cell transmission model, reformulated in the so-called mixed-logical dynamical form, is adopted as internal model for the prediction and the quadratic deviations of the system variables from specific set-points are used as objective function in the finite horizon optimal control problem. The higher level of the control scheme consists of a discrete-event supervisor capable of distinguishing between regular and specific traffic conditions, adjusting the control law accordingly. More precisely, on the occurrence of classified events, the discrete-event supervisor determines the most suitable control action by making the controller switch among the elements of a set of model predictive controllers based on different internal models and cost functions.
Enterprise governance basically is a framework, principles and policies, structures, processes and practices, information, skills, culture, ethics, and behavior to determine direction and monitoring related to complia...
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Enterprise governance basically is a framework, principles and policies, structures, processes and practices, information, skills, culture, ethics, and behavior to determine direction and monitoring related to compliance and performance that align with enterprise goals. COBIT 5 provides guidance that enterprise governance is influenced by individual and collective factors. The existence of this factor will influence process ini scope of governance enterprise either for governance and management area. University governance is a behavior, manner or method used by the college to utilize full potential and optimization elements, in order to achieve the vision and mission that has been set. Model of Vocational University Governance are built based on governance university components and principles of good university governance with reference models that exist within ISO 38500 framework. Enablers that exist within COBIT 5 framework will be used as a determining factor in the preparation of the proposed model of governance and measurement model of vocational university governance.
In this work, a novel framework for automated, spatially-adaptive adjustment of active contour regularization and data fidelity parameters is proposed and applied for medical image segmentation. The proposed framework...
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ISBN:
(纸本)9781479910526
In this work, a novel framework for automated, spatially-adaptive adjustment of active contour regularization and data fidelity parameters is proposed and applied for medical image segmentation. The proposed framework is tailored upon the isomorphism observed between these parameters and the eigenvalues of diffusion tensors. Since such eigenvalues reflect the diffusivity of edge regions, we embed this information in regularization and data fidelity parameters by means of entropy-based, spatially-adaptive 'heatmaps'. The latter are able to repel an active contour from randomly directed edge regions and guide it towards structured ones. Experiments are conducted on endoscopic as well as mammographic images. The segmentation results demonstrate that the proposed framework bypasses iterations dedicated to false local minima associated with noise, artifacts and inhomogeneities, speeding up contour convergence, whereas it maintains a high segmentation quality.
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