15,266 Hits in 3.9 sec

Spatial updating, spatial transients, and regularities of a complex automaton with nonperiodic architecture

Joana G. Freire, Owen J. Brison, Jason A. C. Gallas
2007 Chaos  
We study the dynamics of patterns exhibited by rule 52, a totalistic cellular automaton displaying intricate behaviors and wide regions of active/inactive synchronization patches.  ...  network structure and dynamics. 1-5 In this framework, the purpose of this paper is to report from a fresh point of view an investigation of the high-complexity exhibited by rule 52, a prototypical one-dimensional  ...  F. thanks Fundação para a Ciência e Tecnologia, Portugal, for a Doctoral Fellowship and for supporting her study stays  ... 
doi:10.1063/1.2732896 pmid:17614700 fatcat:hr4j5semunfyzoq7ffjstgohoy

Stability and Intermittency in Large-Scale Coupled Oscillator Models for Perceptual Segmentation

Cees van Leeuwen, Mark Steyvers, Maarten Nooter
1997 Journal of Mathematical Psychology  
For a perceptually ambiguous pattern, the system switches between alternative meta-stable segmentations.  ...  Patterns of synchronized activity are obtained in the model from high-dimensional, deterministic chaos. These patterns correspond to segmented topographical mappings of the visual field.  ...  NUMERICAL SIMULATIONS A locally coupled net was used for the simulations, allowing for a three-dimensional layer-wise representation of a two-dimensional image: the two dimensions of the image in a single  ... 
doi:10.1006/jmps.1997.1177 pmid:9473396 fatcat:a2xx7ng3lfhglfe5zt7lhaq6ye

On the detection of a class of fast frequency-hopped multiple access signals

Y.T. Su, Ye-Shun Shen, Chu-Ya Hsiao
2001 IEEE Journal on Selected Areas in Communications  
Two methods for mitigating MAI are also examined.  ...  and resolve the ambiguity left by the first stage detector.  ...  ACKNOWLEDGMENT The authors would like to thank the anonymous reviewers for their careful reading and valuable suggestions.  ... 
doi:10.1109/49.963802 fatcat:234qyieisvfrzijgjfrl56xpda


Smriti Sharma .
2013 International Journal of Research in Engineering and Technology  
Satellite GPS is undoubtedly the most popular and widely used three dimensional positioning technology in the world today, but despite this, cannot provide the positioning requirement in many every day  ...  In fact, the general expectation of users today is for "GPS-like" positioning performance anywhere they go.  ...  But all require signal availability from a minimum of four GPS satellites for three-dimensional fixes.  ... 
doi:10.15623/ijret.2013.0204031 fatcat:64x4jb2wefeufm3sq7wer3giqu


2004 International Journal of Bifurcation and Chaos in Applied Sciences and Engineering  
The presented investigations focus on electrophysiological correlates of orientation reversals of both ambiguous visual stimuli and alternating non-ambiguous stimuli, representing the two options of the  ...  ambiguous version.  ...  For more details see text. Figure 1 : 1 (a) The Necker cube, a two-dimensional projection of a three-dimensional cube structure, as an ambiguous visual stimulus.  ... 
doi:10.1142/s0218127404009430 fatcat:vthawb2y7nctzjathbzlxghyvm

Constructing ordinal partition transition networks from multivariate time series

Jiayang Zhang, Jie Zhou, Ming Tang, Heng Guo, Michael Small, Yong Zou
2017 Scientific Reports  
We demonstrate the applicability of pattern transition networks to capture phase coherence to non-coherence transitions, and to characterize paths to phase synchronizations.  ...  Characterizing the order of motifs is helpful to distinguish high-dimensional chaos from low-dimensional chaos 22 .  ...  Order patterns in two dimensional time series (x(t), y(t)).  ... 
doi:10.1038/s41598-017-08245-x pmid:28798326 pmcid:PMC5552885 fatcat:bzaeqtvpijdwxiaa2kr3so5kee

A New Method of the Pattern Storage and Recognition in Oscillatory Neural Networks Based on Resistive Switches

Andrei Velichko, Maksim Belyaev, Vadim Putrolaynen, Petr Boriskov
2018 Electronics  
The modeling demonstrates attainment of Ns of several orders both for a three-oscillator scheme Ns ~ 650 and for a two-oscillator scheme Ns ~ 260.  ...  The method allows storage of many patterns, and their number depends on the number of synchronous states Ns.  ...  Dobrynina for some valuable comments in the course of the article translation. Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/electronics7100266 fatcat:rkq2czxifncxleof3bhqmpqwnq

3D Human Motion Sequences Synchronization Using Dense Matching Algorithm [chapter]

Mikhail Mozerov, Ignasi Rius, Xavier Roca, Jordi González
2006 Lecture Notes in Computer Science  
Additionally, an optimal sequence is automatically selected from the input data set to be a time scale pattern for all other sequences.  ...  The synchronized motion sequences are used to learn a model of human motion for action recognition and full-body tracking purposes.  ...  Acknowledgements This work has been supported by EC grant IST-027110 for the HERMES project and by the Spanish MEC under projects TIC2003-08865 and DPI-2004-5414. M.  ... 
doi:10.1007/11861898_49 fatcat:x6o6kafenrb3rhk7z2zvjax4om

Localization Based on MAP and PSO for Drifting-Restricted Underwater Acoustic Sensor Networks

Keyong Hu, Xianglin Song, Zhongwei Sun, Hanjiang Luo, Zhongwen Guo
2018 Sensors  
It consists of two steps: MAP estimation and PSO localization.  ...  In MAP estimation, we analyze nodes' mobility patterns, which provide the priori knowledge for localization, and characterize distance measurements under the assumption of additive and multiplicative noises  ...  For each cluster, we now have represented the two-dimensional location of the nodes and obtained the distance estimation between any two nodes.  ... 
doi:10.3390/s19010071 fatcat:szkdsb3bv5ekpayumsn4qsh3r4

Probabilistic model of two-dimensional rhythm tree structure representation for automatic transcription of polyphonic MIDI signals

Masato Tsuchiya, Kazuki Ochiai, Hirokazu Kameoka, Shigeki Sagayama
2013 2013 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference  
Automatic music transcription involves two subproblems that are interdependent of each other: rhythm recognition and tempo estimation.  ...  This may be made possible through our empirical knowledge about rhythm patterns and tempo variations that possibly occur in music.  ...  1 ∼ 1 , , 2 ∼ 2 , [Produce two synchronizing notes] If is classified into TIME-SPANNING 1 ∼ 1 , , 2 ∼ 2 , + ℎ( 1 ) [Split note into two consecutive notes 1 and 2 ] where , , and are called "nonterminal  ... 
doi:10.1109/apsipa.2013.6694308 dblp:conf/apsipa/TsuchiyaOKS13 fatcat:5z2oeazzq5dsbgtf6n4emsg7oa

High-speed three-dimensional profilometry for multiple objects with complex shapes

Chao Zuo, Qian Chen, Guohua Gu, Shijie Feng, Fangxiaoyu Feng
2012 Optics Express  
Using a properly synchronized high-speed camera, the high-speed fringe patterns distorted by measured objects can be acquired and processed in real-time.  ...  This paper describes an easy-to-implement three-dimensional (3-D) real-time shape measurement technique using our newly developed high-speed 3-D vision system.  ...  Acknowledgments This project was supported by the Research and Innovation Plan for Graduate Students of Jiangsu Higher Education Institutions, China (Grant No. CXZZ11_0237).  ... 
doi:10.1364/oe.20.019493 pmid:23038592 fatcat:umil7acei5g7tmne4x3as2zjo4

Minimum rotation partitioning for data analysis and its application to fault detection

M Yasar, A Ray, H G Kwatny
2010 Proceedings of the 2010 American Control Conference  
This paper presents a novel space partitioning technique, referred as minimum rotation partitioning for the purpose of fault detection and quantification.  ...  The results obtained from a permanent magnet synchronous machine is presented as an example of fault detection and quantification.  ...  Minimum rotation technique almost eliminates this ambiguity except for very small fault cases where load changes shadows the effects of the fault.  ... 
doi:10.1109/acc.2010.5530853 fatcat:4675roiddrhiphai4pvdkdp4rq

Automatic modulation classification for rapid radio deployment

Adolfo Recio, Jorge A. Suris, Peter Athanas
2010 Proceedings of 2010 21st IEEE International Symposium on Rapid System Protyping  
In more advanced systems, for SIGINT and for interference cancellation purposes, a radio receiver may need to classify an otherwise unknown signal without prior information about its modulation type, and  ...  This paper presents the techniques devised to perform the Automatic Modulation Classification stage of the framework, considering its interaction with the parameter estimation and signal synchronization  ...  Two-dimensional pdf Test The two-dimensional pdf is one of the features that can be obtained after the CFO tracking loop.  ... 
doi:10.1109/rsp_2010.46 dblp:conf/rsp/RecioSA10 fatcat:ehixvaoqwndqvnhjxws2lsjdea

Crystallography without crystals. I. The common-line method for assembling a three-dimensional diffraction volume from single-particle scattering

V. L. Shneerson, A. Ourmazd, D. K. Saldin
2008 Acta Crystallographica Section A Foundations of Crystallography  
The extra complexity of identifying such arcs may be offset by two factors: (i) the avoidance of ambiguities stemming from the duplication of intensities in the same two-dimensional diffraction pattern  ...  We note that, in the proposed experiments, the minimum photon count per diffraction pattern orientation is not determined by the minimum required to reconstruct a satisfactory three-dimensional image of  ... 
doi:10.1107/s0108767307067621 pmid:18285625 fatcat:e3nxxvdganhctdoiqfhnk2vn6e

Supplementary methods and results from Spatio-temporal reconstruction of emergent flash synchronization in firefly swarms via stereoscopic 360-degree cameras

Raphaël Sarfati, Julie Hayes, Élie Sarfati, Orit Peleg
To address this gap, we develop a method for three-dimensional tracking of firefly flashes, using a stereoscopic set-up of 360-degree cameras.  ...  These strongly correlated collective displays have inspired numerous mathematical models to explain how global synchronous patterns emerge from local interactions.  ...  When ambiguities occur, for example a streak potentially connected to two successors, they are resolved by removing edges in the directed graph of streak connections based on a "three-point" algorithm.  ... 
doi:10.6084/m9.figshare.12917561.v1 fatcat:bxiqkbewwrfqzhwk2qx6vdqn6y
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