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8th International Conference on Intelligent computing and Information Systems, ICICIS 2017

作者： Sadik, Mona A. Al-Berry, Maryam N. Roushdy, Mohamed Computer Science Department Faculty of Computer and Information Sciences Ain Shams University Cairo Egypt Scientific Computing Department Faculty of Computer and Information Sciences Ain Shams University Cairo Egypt

ISBN: (纸本)9772371723

Biometrie security systems are now highly explored by many researchers for their high accuracy levels. These systems were recorded to be more reliable than traditional security systems that use typed passwords. Some biometric prints have been explored to be used in security systems. These prints include face, iris, voice, palm, finger print, knuckles print, handwriting, speech and keystroke. In this paper, a recent review is performed on the recognition algorithms used with knuckle prints which are formed at the joints either on the finger back surface or on the finger inner surface. The algorithms are classified and a comparison is presented between the performances of different recognition methods. The comparison includes using these methods on a single print and on multiple prints fused together, and whether the prints have been acquired using a contact or contactless device. The paper also presents a list of available datasets that can be used for performance evaluation. © 2017 IEEE.

关键词： Biometrics

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Corneal functional optical zone under monocular and binocular assessment

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Eye and Vision 2018年第1期5卷 24-36页

作者： Samuel Arba Mosquera Diego de Ortueta Shwetabh Verma SCHWIND eye-tech-solutions D-63801 KleinostheimGermany Recognized Research Group in Optical Diagnostic Techniques University of ValladolidValladolidSpain Department of Ophthalmology and Sciences of Vision University of OviedoOviedoSpain Augenzentrum Recklinghausen RecklinghausenGermany Experimental Radiation Oncology University Medical Center MannheimHeidelberg UniversityMannheimGermany Interdisciplinary Center for Scientific Computing(IWR) Heidelberg UniversityHeidelbergGermany Central Institute for Computer Engineering(ZITI) Heidelberg UniversityHeidelbergGermany

Background:In this retrospective randomized case series,we compared bilateral symmetry between OD and OS eyes,intercorneal differences and Functional Optical Zone(FOZ)of the corneal ***:Sixty-seven normal subjects(with no ocular pathology)who never had any ocular surgery were bilaterally evaluated at Augenzentrum Recklinghausen(Germany).In all cases,standard examinations and corneal wavefront topography(OPTIKON Scout)were *** OD/OS bilateral symmetry was evaluated for corneal wavefront aberrations,and FOZ-values were evaluated from the Root-Mean-Square(RMS)of High-Order Wavefront-Aberration(HOWAb).Moreover,correlations of FOZ,spherical equivalent(SE),astigmatism power,and cardinal and oblique astigmatism for binocular ***,and binocular *** differences were ***:Mean FOZ was 6.56±1.13 mm monocularly,6.97±1.34 mm binocularly,and 7.64±1.30 mm intercorneal difference,with all strongly positively correlated,showing that the diameter of glare-free vision is larger in binocular than monocular *** SE was 0.78±1.30 D,and the mean astigmatism power(magnitude)was 0.46±0.52 D *** corresponding monocular values for these metrics were 0.78±1.30 D and 0.53±0.53 D ***,astigmatism magnitude,cardinal astigmatism component,and FOZ showed a strong correlation and even symmetry;and oblique astigmatism component showed odd symmetry indicating Enantiomorphism between the left and right ***:These results confirm OD-vs.-OS bilateral symmetry(which influences binocular summation)of HOWAb,FOZ,defocus,astigmatism power,and cardinal and oblique *** Functional Optical Zone calculated from corneal wavefront aberrations can be used to optimize refractive surgery design.

关键词： Functional optical zone Bilateral symmetry Astigmatism Cardinal and oblique astigmatism Binocular Monocular Intercorneal differences Correlation Enantiomorphism

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The Cognitive Approach to the Coverage-Directed Test Generation

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Advances in Intelligent Systems and computing 2018年 662卷 372-380页

作者： Klimenko, Anna Gorelova, Galina Korobkin, Vladimir Bibilo, Petr SFedU Acad. Kalyaev Scientific Research Institute of Multiprocessor Computer Systems Taganrog Russia SFedU Rostov-on-Don Russia Scientific-Research Institute of Multiprocessor Computing and Control Systems Taganrog Russia The State Scientific Institution "The United Institute of Informatics Problems of the National Academy of Sciences of Belarus" Minsk Belarus

ISBN: (纸本)9783319676203

The important contemporary issue of VLSI design verification is its time-consuming. The hardware model, written, for instance, with VHDL, is verified by formal and dynamic verification approaches. Dynamic verification (simulation) is widely-used due to the possibility of full automation of the process, but takes too much time due to its redundancy. The concept of the coverage-directed test generation is to redirect the test generator such as to reach uncovered metric points. There are several approaches for this, including genetic algorithms using, Bayesian network, Data mining, etc. The new cognitive approach to the coverage-directed test generation (CA CDG) is proposed within this paper. It is based on a cognitive map usage. The CA CDG is described, some simulation results are given. Also the future work areas are outlined. © 2018, Springer International Publishing AG.

关键词： Bayesian networks

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BigNeuron: a resource to benchmark and predict performance of algorithms for automated tracing of neurons in light microscopy datasets

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Nature methods 2023年第6期20卷 824-835页

作者： Linus Manubens-Gil Zhi Zhou Hanbo Chen Arvind Ramanathan Xiaoxiao Liu Yufeng Liu Alessandro Bria Todd Gillette Zongcai Ruan Jian Yang Miroslav Radojević Ting Zhao Li Cheng Lei Qu Siqi Liu Kristofer E Bouchard Lin Gu Weidong Cai Shuiwang Ji Badrinath Roysam Ching-Wei Wang Hongchuan Yu Amos Sironi Daniel Maxim Iascone Jie Zhou Erhan Bas Eduardo Conde-Sousa Paulo Aguiar Xiang Li Yujie Li Sumit Nanda Yuan Wang Leila Muresan Pascal Fua Bing Ye Hai-Yan He Jochen F Staiger Manuel Peter Daniel N Cox Michel Simonneau Marcel Oberlaender Gregory Jefferis Kei Ito Paloma Gonzalez-Bellido Jinhyun Kim Edwin Rubel Hollis T Cline Hongkui Zeng Aljoscha Nern Ann-Shyn Chiang Jianhua Yao Jane Roskams Rick Livesey Janine Stevens Tianming Liu Chinh Dang Yike Guo Ning Zhong Georgia Tourassi Sean Hill Michael Hawrylycz Christof Koch Erik Meijering Giorgio A Ascoli Hanchuan Peng Institute for Brain and Intelligence Southeast University Nanjing China. Microsoft Corporation Redmond WA USA. Tencent AI Lab Bellevue WA USA. Computing Environment and Life Sciences Directorate Argonne National Laboratory Lemont IL USA. Kaya Medical Seattle WA USA. University of Cassino and Southern Lazio Cassino Italy. Center for Neural Informatics Structures and Plasticity Krasnow Institute for Advanced Study George Mason University Fairfax VA USA. Faculty of Information Technology Beijing University of Technology Beijing China. Beijing International Collaboration Base on Brain Informatics and Wisdom Services Beijing China. Nuctech Netherlands Rotterdam the Netherlands. Janelia Research Campus Howard Hughes Medical Institute Ashburn VA USA. Department of Electrical and Computer Engineering University of Alberta Edmonton Alberta Canada. Ministry of Education Key Laboratory of Intelligent Computation and Signal Processing Anhui University Hefei China. Paige AI New York NY USA. Scientific Data Division and Biological Systems and Engineering Division Lawrence Berkeley National Lab Berkeley CA USA. Helen Wills Neuroscience Institute and Redwood Center for Theoretical Neuroscience UC Berkeley Berkeley CA USA. RIKEN AIP Tokyo Japan. Research Center for Advanced Science and Technology (RCAST) The University of Tokyo Tokyo Japan. School of Computer Science University of Sydney Sydney New South Wales Australia. Texas A&M University College Station TX USA. Cullen College of Engineering University of Houston Houston TX USA. Graduate Institute of Biomedical Engineering National Taiwan University of Science and Technology Taipei Taiwan. National Centre for Computer Animation Bournemouth University Poole UK. PROPHESEE Paris France. Department of Neuroscience Columbia University New York NY USA. Mortimer B. Zuckerman Mind Brain Behavior Institute Columbia University New York NY USA. Department of Computer Science Northern Illinois Universit

BigNeuron is an open community bench-testing platform with the goal of setting open standards for accurate and fast automatic neuron tracing. We gathered a diverse set of image volumes across several species that is representative of the data obtained in many neuroscience laboratories interested in neuron tracing. Here, we report generated gold standard manual annotations for a subset of the available imaging datasets and quantified tracing quality for 35 automatic tracing algorithms. The goal of generating such a hand-curated diverse dataset is to advance the development of tracing algorithms and enable generalizable benchmarking. Together with image quality features, we pooled the data in an interactive web application that enables users and developers to perform principal component analysis, t-distributed stochastic neighbor embedding, correlation and clustering, visualization of imaging and tracing data, and benchmarking of automatic tracing algorithms in user-defined data subsets. The image quality metrics explain most of the variance in the data, followed by neuromorphological features related to neuron size. We observed that diverse algorithms can provide complementary information to obtain accurate results and developed a method to iteratively combine methods and generate consensus reconstructions. The consensus trees obtained provide estimates of the neuron structure ground truth that typically outperform single algorithms in noisy datasets. However, specific algorithms may outperform the consensus tree strategy in specific imaging conditions. Finally, to aid users in predicting the most accurate automatic tracing results without manual annotations for comparison, we used support vector machine regression to predict reconstruction quality given an image volume and a set of automatic tracings.

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Minimal Model of Cellular Symmetry Breaking

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Physical Review Letters 2019年第18期123卷 188101-188101页

作者： Alexander Mietke V. Jemseena K. Vijay Kumar Ivo F. Sbalzarini Frank Jülicher Max Planck Institute for the Physics of Complex Systems 01187 Dresden Germany Chair of Scientific Computing for Systems Biology Faculty of Computer Science TU Dresden 01187 Dresden Germany Center for Systems Biology Dresden 01307 Dresden Germany Max Planck Institute of Molecular Cell Biology and Genetics 01307 Dresden Germany International Centre for Theoretical Sciences Tata Institute of Fundamental Research 560 089 Bengaluru India Cluster of Excellence Physics of Life TU Dresden 01307 Dresden Germany

The cell cortex, a thin film of active material assembled below the cell membrane, plays a key role in cellular symmetry-breaking processes such as cell polarity establishment and cell division. Here, we present a minimal model of the self-organization of the cell cortex that is based on a hydrodynamic theory of curved active surfaces. Active stresses on this surface are regulated by a diffusing molecular species. We show that coupling of the active surface to a passive bulk fluid enables spontaneous polarization and the formation of a contractile ring on the surface via mechanochemical instabilities. We discuss the role of external fields in guiding such pattern formation. Our work reveals that key features of cellular symmetry breaking and cell division can emerge in a minimal model via general dynamic instabilities.

关键词： Biological fluid dynamics Cell division Cell polarity Cell processes & properties Self-organization Active liquid films Active matter

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A non-perturbative approach to computing seismic normal modes in rotating planets

arXiv

引用

arXiv 2019年

作者： Shi, Jia Li, Ruipeng Xi, Yuanzhe Saad, Yousef de Hoop, Maarten V. Department of Earth Environmental and Planetary Sciences Rice University TX United States Center for Applied Scientific Computing Lawrence Livermore National Laboratory CA United States Department of Mathematics Emory University AtlantaGA United States Department of Computer Science and Engineering University of Minnesota MN United States Department of Computational and Applied Mathematics Rice University TX United States

MSC Codes 86-08, 86-04, 85-04, 85-08, 85-10, 15A18, 65N25, 65N30A Continuous Galerkin method based approach is presented to compute the seismic normal modes of rotating planets. Special care is taken to separate out the essential spectrum in the presence of a fluid outer core using a polynomial filtering eigensolver. The relevant elastic-gravitational system of equations, including the Coriolis force, is subjected to a mixed finite-element method, while self-gravitation is accounted for with the fast multipole method. Our discretization utilizes fully unstructured tetrahedral meshes for both solid and fluid regions. The relevant eigenvalue problem is solved by a combination of several highly parallel and computationally efficient methods. We validate our three-dimensional results in the non-rotating case using analytical results for constant elastic balls, as well as numerical results for an isotropic Earth model from standard "radial" algorithms. We also validate the computations in the rotating case, but only in the slowly-rotating regime where perturbation theory applies, because no other independent algorithms are available in the general case. The algorithm and code are used to compute the point spectra of eigenfrequencies in several Earth and Mars models studying the effects of heterogeneity on a large range of scales. Copyright © 2019, The Authors. All rights reserved.

关键词： Seismology

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Efficient verification of continuous-variable quantum states and devices without assuming identical and independent operations

arXiv

引用

arXiv 2020年

作者： Wu, Ya-Dong Bai, Ge Chiribella, Giulio Liu, Nana QICI Quantum Information and Computation Initiative Department of Computer Science The University of Hong Kong Pokfulam Road Hong Kong The University of Hong Kong Shenzhen Institute of Research and Innovation 5/F Key Laboratory Platform Building No.6 Yuexing 2nd Rd. Nanshan Shenzhen518057 China Department of Computer Science Parks Road OxfordOX1 3QD United Kingdom Perimeter Institute for Theoretical Physics WaterlooONN2L 2Y5 Canada Institute of Natural Sciences Shanghai Jiao Tong University Shanghai200240 China Ministry of Education Key Laboratory in Scientific and Engineering Computing Shanghai Jiao Tong University Shanghai200240 China University of Michigan Shanghai Jiao Tong University Joint Institute Shanghai200240 China

Continuous-variable quantum information, encoded into infinite-dimensional quantum systems, is a promising platform for the realization of many quantum information protocols, including quantum computation, quantum metrology, quantum cryptography, and quantum communication. To successfully demonstrate these protocols, an essential step is the certification of multimode continuous-variable quantum states and quantum devices. This problem is well studied under the assumption that multiple uses of the same device result in identical and independently distributed (i.i.d.) operations. However, in realistic scenarios, identical and independent state preparation and calls to the quantum devices cannot be generally guaranteed. Important instances include adversarial scenarios and instances of time-dependent and correlated noise. In this paper, we propose the first set of reliable protocols for verifying multimode continuous-variable entangled states and devices in these non-i.i.d scenarios. Although not fully universal, these protocols are applicable to Gaussian quantum states, non-Gaussian hypergraph states, as well as amplification, attenuation, and purification of noisy coherent states. Copyright © 2020, The Authors. All rights reserved.

关键词： Quantum optics

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Thermal Stress and Reliability Analysis of TSV-Based 3-D ICs With a Novel Adaptive Strategy Finite Element Method

Thermal Stress and Reliability Analysis of TSV-Based 3-D ICs...

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作者： Zhou, Hao Zhu, Hengliang Cui, Tao Pan, David Z. Zhou, Dian Zeng, Xuan State Key Laboratory of ASIC and Systems Department of Microelectronics Fudan University Shanghai200433 China State Key Laboratory of Scientific and Engineering Computing National Center for Mathematics and Interdisciplinary Sciences Institute of Computational Mathematics Academy of Mathematics and System Sciences Chinese Academy of Sciences Beijing100190 China Department of Electrical and Computer Engineering University of Texas at Austin AustinTX78712 United States Department of Electrical Engineering University of Texas at Dallas RichardsonTX75080 United States

Thermomechanical stress is one of the most important issues in performance and reliability analysis of through silicon via-based 3-D integrated circuits (3-D ICs), where an accurate numerical approach is generally needed to produce stress models and identify weak points in the structure. In this paper, we propose a knowledge-oriented nonuniform (KONU) refinement strategy for 3-D IC stress simulation under the framework of a parallel adaptive finite element method (FEM), and apply it in 3-D IC stress and reliability analysis. Parallel adaptive FEM is promising for solving large-scale problems due to its high accuracy and parallel efficiency. It produces refined meshes based on the a posteriori error analysis, which has the quasi-optimal convergence rate for solving the problem. It has high parallel efficiency, which makes it suitable for handling large and complex structures in 3-D ICs. The KONU refinement strategy developed in this paper can efficiently reduce the number of refinement iterations in parallel adaptive FEM for 3-D IC thermomechanical stress simulation and improves the computational efficiency. It is demonstrated in this paper through several examples that parallel adaptive FEM for thermomechanical stress evaluation can be widely applied in 3-D IC reliability analysis, where accurate stress simulation and modeling is exceptionally important to produce accurate results. © 2018 IEEE.

关键词： Reliability analysis

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The art of nomograms

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Eye and Vision 2018年第1期5卷 11-23页

作者： Samuel Arba Mosquera Diego de Ortueta Shwetabh Verma Recognized Research Group in Optical Diagnostic Techniques University of ValladolidValladolidSpain SCHWIND eye-tech-solutions Mainparkstr.6-10D-63801 KleinostheimGermany Department of Ophthalmology and Sciences of Vision University of OviedoOviedoSpain Augenzentrum Recklinghausen RecklinghausenGermany Experimental Radiation Oncology University Medical Center MannheimHeidelberg UniversityHeidelbergGermany Interdisciplinary Center for Scientific Computing(IWR) Heidelberg UniversityHeidelbergGermany Central Institute for Computer Engineering(ZITI) Heidelberg UniversityHeidelbergGermany

Background:To retrospectively analyse strategies for adjusting refractive surgery plans with reference to the preoperative manifest ***:We constructed seven nomograms based on the refractive outcomes(sphere,cylinder,axis[SCA])of 150 consecutive eyes treated with laser in situ keratomileusis for myopic *** limited the initial data to the SCA of the manifest *** nomograms were based on the strategy:if for x diopters(D)of attempted metric,y D is achieved;we can reverse this sentence and state for achieving y D of change in the metric,x D will be *** effects of the use of plus or minus astigmatism notation,spherical equivalent,sphere,principal meridians notation,cardinal and oblique astigmatism,and astigmatic axis were ***:All nomograms detected subtle differences in the spherical component(p<0.0001).Nomograms 5 and 7(using power vectors)and 6(considering axis shifts)detected significant astigmatic differences(nomogram 5,p<0.001;nomogram 6,p<0.05;nomogram 7,p<0.005 for cardinal astigmatism,p=0.1 for oblique astigmatism).We observed mild clinically relevant differences(~0.5 D)in sphere or astigmatism among the nomograms;differences of~0.25 D in the proposals for sphere or cylinder were not *** nomograms suggested minor improvements versus actual observed outcomes,with no clinically relevant differences among ***:All nomograms anticipated minor improvements versus actual observed outcomes without clinically relevant differences among *** minimal uncertainties in determining the manifest refraction(~0.6 D)are the major limitation to improving the accuracy of refractive surgery nomograms.

关键词： Refraction Nomograms Refractive outcomes Sphere Cylinder

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The computation of seismic normal modes with rotation as a quadratic eigenvalue problem

arXiv

引用

arXiv 2019年

作者： Shi, Jia Li, Ruipeng Xi, Yuanzhe Saad, Yousef de Hoop, Maarten V. Department of Earth Environmental and Planetary Sciences Rice University United States Center for Applied Scientific Computing Lawrence Livermore National Laboratory LivermoreCA United States Department of Mathematics Emory University AtlantaGA United States Department of Computer Science and Engineering University of Minnesota MN United States Simons Chair in Computational and Applied Mathematics and Earth Science Rice University HoustonTX United States

A new approach is presented to compute the seismic normal modes of a fully heterogeneous, rotating planet. Special care is taken to separate out the essential spectrum in the presence of a fluid outer core. The relevant elastic-gravitational system of equations, including the Coriolis force, is subjected to a mixed finite-element method, while self-gravitation is accounted for with the fast multipole method (FMM). To solve the resulting quadratic eigenvalue problem (QEP), the approach utilizes extended Lanczos vectors forming a subspace computed from a non-rotating planet – with the shape of boundaries of a rotating planet and accounting for the centrifugal potential – to reduce the dimension of the original problem significantly. The subspace is guaranteed to be contained in the space of functions to which the seismic normal modes belong. The reduced system can further be solved with a standard eigensolver. The computational accuracy is illustrated using all the modes with relative small meshes and also tested against standard perturbation calculations relative to a standard Earth model. The algorithm and code are used to compute the point spectra of eigenfrequencies in several Mars models studying the effects of heterogeneity on a large range of scales. Copyright © 2019, The Authors. All rights reserved.

关键词： Seismology

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