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Spinning Fast Iterative Data Flows [article]

Stephan Ewen, Kostas Tzoumas, Moritz Kaufmann, Volker Markl
2012 arXiv   pre-print
Parallel dataflow systems are a central part of most analytic pipelines for big data.  ...  We propose a method to integrate incremental iterations, a form of workset iterations, with parallel dataflows.  ...  The dynamic and constant data path distinction applies directly to the ∆ data flow in incremental iterations.  ... 
arXiv:1208.0088v1 fatcat:urzipkk2bbbgzeh6qyayphzvoq

Spinning fast iterative data flows

Stephan Ewen, Kostas Tzoumas, Moritz Kaufmann, Volker Markl
2012 Proceedings of the VLDB Endowment  
Parallel dataflow systems are a central part of most analytic pipelines for big data.  ...  Training a model over a large data corpus frequently requires a dataflow (like MapReduce) for preprocessing the data (e. g., for joining different sources and normalization), a specialized system for the  ...  The dynamic and constant data path distinction applies directly to the ∆ data flow in incremental iterations.  ... 
doi:10.14778/2350229.2350245 fatcat:mlgvsxdlrngntdm33n2drq6h5m

The HepMC C++ Monte Carlo event record for High Energy Physics

Matt Dobbs, Jørgen Beck Hansen
2001 Computer Physics Communications  
Many extensions from HEPEVT, the Fortran HEP standard, are supported: the number of entries is unlimited, spin density matrices can be stored with each vertex, flow patterns (such as colour) can be stored  ...  Event information is accessed by means of iterators supplied with HepMC.  ...  (spin density matrices).  ... 
doi:10.1016/s0010-4655(00)00189-2 fatcat:7m6tjmgoabethevivmjbvnacse

Real-Time Segmentation of Stereo Videos on a Portable System With a Mobile GPU

Alexey Abramov, Karl Pauwels, Jeremie Papon, Florentin Worgotter, Babette Dellen
2012 IEEE transactions on circuits and systems for video technology (Print)  
In mobile robotic applications, visual information needs to be processed fast despite resource limitations of the mobile system.  ...  It combines real-time optical flow and stereo with image segmentation and runs on a portable system with an integrated mobile GPU.  ...  Phase-based optical flow and disparity Since fast processing is a very important issue in the present study, the real-time phase-based optical flow and stereo algorithms, proposed by Pauwels et al. (2010  ... 
doi:10.1109/tcsvt.2012.2199389 fatcat:4cyfeij5fvdndotl42evhk5hxe

Depth-supported real-time video segmentation with the Kinect

Alexey Abramov, Karl Pauwels, Jeremie Papon, Florentin Worgotter, Babette Dellen
2012 2012 IEEE Workshop on the Applications of Computer Vision (WACV)  
of iterations required for the Metropolis method to encounter the new equilibrium state.  ...  Segments represent the equilibrium states of a Potts model, where tracking of segments is achieved by warping obtained segment labels to the next frame using real-time optical flow, which reduces the number  ...  Once the interaction strengths are determined, the spin state configuration is iteratively updated by the Metropolis algorithm with annealing choosing the state with the minimum energy at every iteration  ... 
doi:10.1109/wacv.2012.6163000 dblp:conf/wacv/AbramovPPWD12 fatcat:cl5xtlzdhjgvnnrqq42jfjy5ou

Free-breathing black-blood CINE fast-spin echo imaging for measuring abdominal aortic wall distensibility: a feasibility study

Jyh-Miin Lin, Andrew J Patterson, Tzu-Cheng Chao, Chengcheng Zhu, Hing-Chiu Chang, Jason Mendes, Hsiao-Wen Chung, Jonathan H Gillard, Martin J Graves
2017 Physics in Medicine and Biology  
The paper reports a free-breathing black-blood CINE fast-spin echo (FSE) technique for measuring abdominal aortic wall motion.  ...  The free-breathing CINE FSE includes the following MR techniques: 1) variable-density sampling with fast iterative reconstruction; 2) inner-volume imaging; and 3) a blood-suppression preparation pulse.  ...  Schematic diagram of the free-breathing CINE fast-spin echo (FSE) for measuring abdominal aortic wall motion. Photoplethysmography (PPG) and MRI raw data are concurrently acquired.  ... 
doi:10.1088/1361-6560/aa685a pmid:28327475 fatcat:bolppossozca5g37nsd53ombye

Fluid-fiber-interactions in rotational spinning process of glass wool production

Walter Arne, Nicole Marheineke, Johannes Schnebele, Raimund Wegener
2011 Journal of Mathematics in Industry  
In this paper we focus exclusively on the spinning regime where thousands of viscous thermal glass jets are formed by fast air streams.  ...  A weak iterative coupling algorithm that is based on the combination of commercial software and self-implemented code for flow and rod solvers, respectively, makes then the simulation of the industrial  ...  General coupling concept for slender bodies and fluid flows We are interested in the spinning of ten thousands of slender glass jets by fast air streams, M N = 26950.  ... 
doi:10.1186/2190-5983-1-2 fatcat:l4uvth5bujcxnfmkm3wqyq7mgm

Abbreviations of Special Terms for Presentation/Paper Titles in Magnetic Resonance Study

Masanori Komi, Junji Shiraishi
2013 Japanese Journal of Radiological Technology  
ISMRM - 59 FOV field of view ISMRM 60 FRFSE fast relaxation fast spin echo JSRT GE 61 FSBB flow sensitive black blood Glossary - TOSHIBA 62 FSE fast spin echo JSRT - 63 FSPGR fast spoiled  ...  47 FAME fast acquisition multiphase Glossary GE 48 FASE fast advanced spin echo Glossary TOSHIBA 49 FBI flesh brood imaging JSRT - TOSHIBA 50 FE field echo Glossary TOSHIBA 51 FFE fast  ... 
doi:10.6009/jjrt.2013_jsrt_69.8.879 pmid:23965789 fatcat:fismquqsergwllgfnfmnqv6opq

Basal drag of Fleming Glacier, Antarctica, Part A: sensitivity of inversion to temperature and bedrock uncertainty

Chen Zhao, Rupert M. Gladstone, Roland C. Warner, Matt A. King, Thomas Zwinger
2018 The Cryosphere Discussions  
We find that the Fleming Glacier has strong, temperature-dependent, deformational flow in the fast-flowing regions.  ...  Understanding of the dynamics of these fast-flowing glaciers, and their potential future behavior, can be improved through ice sheet modeling studies.  ...  Therefore, one of the keys to modeling fast-flowing glaciers is accurate knowledge of the basal conditions: Surface elevation data in 2008 The surface topography in 2008 ( Fig. 2a) is combined from  ... 
doi:10.5194/tc-2017-241 fatcat:ozuas4kgufg35bsodxu63uuopi

Efficient switching of 3-terminal magnetic tunnel junctions by the giant spin Hall effect of Pt85Hf15 alloy

Minh-Hai Nguyen, Shengjie Shi, Graham E. Rowlands, Sriharsha V. Aradhya, Colin L. Jermain, D. C. Ralph, R. A. Buhrman
2018 Applied Physics Letters  
Recent research has indicated that introducing impurities that increase the resistivity of Pt can enhance the efficiency of the spin Hall torque it generates.  ...  Here we directly demonstrate the usefulness of this strategy by fabricating prototype 3-terminal in-plane-magnetized magnetic tunnel junctions that utilize the spin Hall torque from a Pt_85Hf_15 alloy,  ...  (c) Results after 5 iterations (567 points). (d) Results after 13 iterations (10757 points) in which most data points lie along the 50% probability boundary.  ... 
doi:10.1063/1.5021077 fatcat:efy4krwb3jdbnngfqjiehbtbze

A fast algorithm for investigations on the three-dimensional Ising model

Michael Creutz, P. Mitra, K.J.M. Moriarty
1984 Computer Physics Communications  
The data shown in figs. 2 and References 3 are the result of 10000 iterations per data point with the first 1000 iterations thrown away and the [1] Monte Carlo Methods in Statistical Physics, ed. K.  ...  This remost of our efforts on improving the preliminary search was also carried out in part under the data shown in fig. 3 averages taken over the remaining 9000 iterations.  ... 
doi:10.1016/0010-4655(84)90142-5 fatcat:jg56vte3yff3xd7wxfo4wl2blu

Removal of intensity bias in magnitude spin-echo MRI images by nonlinear diffusion filtering

Alexei A. Samsonov, Chris R. Johnson, J. Michael Fitzpatrick, Milan Sonka
2004 Medical Imaging 2004: Image Processing  
The new method has provided efficient denoising and bias removal in conventional and black-blood angiography MRI images obtained using fast spin echo acquisition protocols.  ...  MRI data analysis is routinely done on the magnitude part of complex images.  ...  A common way to reconstruct data sampled on the Cartesian grid is to transform the data into the spatial domain using a fast Fourier transform (FFT).  ... 
doi:10.1117/12.535899 dblp:conf/miip/SamsonovJ04 fatcat:25htf4yyjvc4zpcv6irc3agr4y

A rapidly converging spin-up method for the present-day Greenland ice sheet using the GRISLI ice-sheet model

Sébastien Le clec'h, Aurélien Quiquet, Sylvie Charbit, Christophe Dumas, Masa Kageyama, Catherine Ritz
2018 Geoscientific Model Development Discussions  
The process depends on three parameters controlling the duration and the number of iterations.  ...  To circumvent this drawback, inverse modelling approaches can be developed and validated against available data to infer reliable initial conditions of the ice sheet.  ...  Such spin-up methods can only be used with low computational cost models, which are often unable to properly capture fast ice flow processes. 2.  ... 
doi:10.5194/gmd-2017-322 fatcat:nvvuqqv4ybahxfolln6tx3u4xy

Computation of hypersonic viscous flow over a body with mass transfer and/or spin

1983 Journal of Spacecraft and Rockets  
Later, Gogineni and Lewis® reduced the computing times required for an entire solution by combining the VSL3D and PNS methods, and also by using a fast implicit-iterative technique known as the pseudo  ...  Thus, the entire flow properties, including the shock shape, must be supplied at an initial data plane to get the PNS code started.  ... 
doi:10.2514/3.28364 fatcat:36kywktpzrbifnvf73ql2eihma

A fast and accurate algorithm for inferring sparse Ising models via parameters activation to maximize the pseudo-likelihood [article]

Silvio Franz, Federico Ricci-Tersenghi, Jacopo Rocchi
2019 arXiv   pre-print
Numerical tests have been performed on a wide class of models such as random graphs and finite dimensional lattices with different type of couplings, both ferromagnetic and spin glasses.  ...  Finally we describe the results of our algorithm in a wide class of Ising models with a comparison with the fast Minimum Probability Flow (MPF) [4] , showing that the two methods have similar execution  ...  (b) Random regular spin glass with N = 100 spins, c = 4, corresponding to 200 couplings.  ... 
arXiv:1901.11325v2 fatcat:srx32pxha5bthn3mt7saqqsede
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