the proceedings contain 44 papers. the topics discussed include: fuzzy C-means with a local membership KL-distance for medical image segmentation;a novel approach for remote diagnosis and troubleshooting for lab instr...
ISBN:
(纸本)9781479944125
the proceedings contain 44 papers. the topics discussed include: fuzzy C-means with a local membership KL-distance for medical image segmentation;a novel approach for remote diagnosis and troubleshooting for lab instruments;development of a high resolution human brain finite element model for restructuring traumatic brain injury;unilateral facial nerve paralysis induced changes in DMN functional connectivity;a tMRI study;offline large scale Fourier volume rendering on low-end hardware;stiffness analyses of modified Niagara prosthetic feet using finite element modeling;the influence of ventilation on chest compression force and depth during neonatal cardiopulmonary resuscitation;MATLAB-based Fourier volume rendering framework;estimation of Eulerian strain from tagged MRI using optical flow;a slab to reduce back-reflected clutter for the whole ultra-wideband range;and vitamin d receptor gene polymorphisms in rheumatoid arthritis patients associating osteoporosis.
Macro-scale simulation has been advanced as one tool for application-architecture co-design to express operation of exascale systems. these simulations approximate the behavior of system components, trading off accura...
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ISBN:
(纸本)9781479989379
Macro-scale simulation has been advanced as one tool for application-architecture co-design to express operation of exascale systems. these simulations approximate the behavior of system components, trading off accuracy for increased evaluation speed. Application skeletons serve as the vehicle for these simulations, but they require accurately capturing the execution behavior of computation. the complexity of application codes, the heterogeneity of the platforms, and the increasing importance of simulating multiple performance metrics (e. g., execution time, energy) require new modeling techniques. We propose flexible statistical models to increase the fidelity of application simulation at scale. We present performance model validation for several exascale mini-applications that leverage a variety of parallel programming frameworks targeting heterogeneous architectures for both time and energy performance metrics. When paired withthese statistical models, application skeletons were simulated on average 12.5 times faster than the original application incurring only 6.08% error, which is 12.5% faster and 33.7% more accurate than baseline models.
In air-based information network of the Space-Air-Ground Integrated Network, it is critical to select an efficient communication link for each communication. However, some communication may not have fixed rules. In th...
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ISBN:
(纸本)9781479989379
In air-based information network of the Space-Air-Ground Integrated Network, it is critical to select an efficient communication link for each communication. However, some communication may not have fixed rules. In this article, we build a model of the air-based information network, and use the dynamic programming to select the most efficient communication link by minimizing the energy consumption in the communication model. In the communication model, energy consumption is associated withthe distance between aircrafts and the relative velocity of the aircrafts. the experiments show that the presented algorithms can effectively reduce the total cost while satisfying timing constraints with guaranteed confidence probabilities. For example, there has been an achievement that an average reduction of 9.9% per 20 time units in the 100-subnetwork model satisfying timing constraints based on the presented algorithm.
there is a phenomenon that hardware technology has developed ahead of software technology in recent years. Companies lack of software techniques that can fully utilize the modern multi-core computing resources, mainly...
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ISBN:
(纸本)9781479989379
there is a phenomenon that hardware technology has developed ahead of software technology in recent years. Companies lack of software techniques that can fully utilize the modern multi-core computing resources, mainly due to the difficulty of investigating the inherent parallelism inside a software. this problem exists in products ranging from energy-sensitive smartphones to performance-eager data centers. In this paper, we present a case study on the parallelization of the complex industry standard H.264 HDTV decoder application in multi-core systems. An optimal schedule of the tasks is obtained and implemented by a carefully-defined software parallelization framework (SPF). the parallel software framework is proposed together with a set of rules to direct parallel software programming (PSPR). A pre-processing phase based on the rules is applied to the source code to make the SPF applicable. the task-level parallel version of the H.264 decoder is implemented and tested extensively on a workstation running Linux. Significant performance improvement is observed for a set of benchmarks composed of 720p videos. the SPF and the PSPR will together serve as a reference for future parallel software implementations and direct the development of automated tools.
Abduction can be considered as a principal way of reasoning for problem solving. Abductive inference consists in generation of hypotheses which explain - or logically imply - the phenomenon under investigation in view...
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We combine spin polarised density functionaltheory and thermodynamic mean field theory to describe the phase transitions of antiperovskite manganese nitrides. We find that the inclusion of the localized spin contribu...
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We combine spin polarised density functionaltheory and thermodynamic mean field theory to describe the phase transitions of antiperovskite manganese nitrides. We find that the inclusion of the localized spin contribution to the entropy, evaluated through mean field theory, lowers the transition temperatures. Furthermore, we show that the electronic entropy leads to first order phase transitions in agreement with experiments whereas the localized spin contribution adds second order character to the transition. We compare our predictions to available experimental data to assess the validity of the assumptions underpinning our multilevel modelling.
Sparse representations of signals based on learned dictionaries have drawn considerable interest in recent years. However, the design of dictionaries adapting well to a set of training signals is still a challenging p...
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ISBN:
(纸本)9783319240695;9783319240688
Sparse representations of signals based on learned dictionaries have drawn considerable interest in recent years. However, the design of dictionaries adapting well to a set of training signals is still a challenging problem. For this task, we propose a novel algorithm based on DC (Difference of Convex functions) programming and DCA (DC Algorithm). the efficiency of proposed algorithm will be demonstrated in image denoising application.
Scientometric analyses of conferences both in and outside HCI have provided valuable insights into the conferences and their advancement. After five consecutive years of IndiaHCI, there is a need to reflect upon its v...
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this paper presents our system in the Chinese spelling check (CSC) task of SIGHAN-8 Bake-Off. Given a sentence, our systems are designed to detect and correct the spelling error. As we know, CSC is still a hot topic t...
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In this paper, we study the energy-efficient secrecy precoding problem for a general multiple-input multiple-output multiple-eavesdropper (MIMOME) wiretap channel. the system model considered here consists of a common...
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ISBN:
(纸本)9781467376877
In this paper, we study the energy-efficient secrecy precoding problem for a general multiple-input multiple-output multiple-eavesdropper (MIMOME) wiretap channel. the system model considered here consists of a common transmitter, a legitimate receiver, and multiple eavesdroppers, all mounted with multiple antennas. In order to improve the energy efficiency (EE) performance of the proposed system, an artificial noise (AN)-aided precoding scheme is adopted. Because the formulated EE maximization problem is of huge nonconvex complexity, we solve it by employing a two-tier optimization structure. Although the outer-tier optimization problem is quite simple and can be efficiently solved by the famous golden section searching method, the inner-tier optimization problem turns out to be nonconvex and cannot be easily solved. To solve it, we relax it to a secrecy rate maximization (SRM) problem, which naturally constitutes a difference convex (DC)-type programming problem and can be iteratively solved by employing a successive convex approximation (SCA) method. Numerical simulations are further provided to demonstrate the proposed algorithms. Results show that our algorithms can converge fast to a near-optimal solution.
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