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Page 1328 of Mathematical Reviews Vol. , Issue 2003B [page]

2003 Mathematical Reviews  
Gunopulos, Dimitris] (1-CAR-CE; Riverside, CA); Mannila, Heikki (FIN-HELS-IIT; Helsinki) Time-series similarity problems and well-separated geometric sets.  ...  In particular, we use properties of families of well-separated geometric sets.  ... 

Approaches of Handling Uncertain Time Series Data towards Prediction

Radzuan M. F. Nabilah, Zalinda Othman, Bakar A. Azuraliza
2016 International Journal of Future Computer and Communication  
Clustering uncertain time series data posts significant challenges on both modeling similarity between uncertain objects and developing efficient computational methods.  ...  This paper works on clustering issues of uncertain time series data prior to prediction process.  ...  RESEARCH RELATED Time series is well known as a stretch of values on a similar scale, indexed by a time that occurs naturally in many application domains such as weather, manufacturing, environmental,  ... 
doi:10.18178/ijfcc.2016.5.6.477 fatcat:dlqxyiln6vcwdlsoifa4q26doq

Combined Spatial/Beamforming And Time/Frequency Processing For Blind Source Separation

Qiongfeng Pan, Tyseer Aboulnasr
2005 Zenodo  
ADAPTIVE BEAMFORMING Typically, a beamformer [19] linearly combines the spatially sampled time series from each sensor to obtain a scalar output time series of a signal from a given direction, in the  ...  Such a problem has been tackled using Blind Source Separation algorithms (utilizing time and frequency domain information) and adaptive beamforming (utilizing spatial information) from different points  ... 
doi:10.5281/zenodo.39013 fatcat:jmjkyssffvazjadmqoz74s7aaq

On mixing of certain random walks, cutoff phenomenon and sharp threshold of random matroid processes

Igor Pak, Van H. Vu
2001 Discrete Applied Mathematics  
We also discuss some random geometric random walks as well as some examples and symmetric cases. ? 2001 Elsevier Science B.V. All rights reserved.  ...  In particular, the mixing time is given by the expected stopping time, and the cuto is equivalent to sharp threshold.  ...  We would also like to thank Là aszlà o Lovà asz, Gregory Margulis, and Richard Stanley for the interest in this work. Special thanks to Martin Hildebrand for some suggestions on style.  ... 
doi:10.1016/s0166-218x(00)00201-8 fatcat:xllhqrjtabha3p6epvd55raeze

Analysis of Event-Related fMRI Data Using Diffusion Maps [chapter]

Xilin Shen, François G. Meyer
2005 Lecture Notes in Computer Science  
We use a graph partitioning technique-the normalized cut to find the separation between the activated manifold and the background time series.  ...  We believe that all activated times series share a common structure and all belong to a low dimensional manifold.  ...  Mauro Maggioni and Dr. Stéphane Lafon for discussions of the theory and the implementation of diffusion maps.  ... 
doi:10.1007/11505730_54 fatcat:w4qkttraufddlhae2xletdwhda

On the separation of shape and temporal patterns in time series -Application to signature authentication- [article]

Pierre-François Marteau
2019 arXiv   pre-print
In this article we address the problem of separation of shape and time components in time series.  ...  We propose to exploit and adapt a probabilistic temporal alignment algorithm, initially designed to estimate the centroid of a set of time series, to build some heuristicelements of solution to this separation  ...  CONCLUSION We have stated in this paper the problem of the separation of shape and time components in time series.  ... 
arXiv:1911.09360v2 fatcat:fqlpttusdba27mrupczi4sm5gy

Geometric optimization andD P -completeness

Chanderjit Bajaj, Ming Li
1989 Discrete & Computational Geometry  
In this paper we show a number of natural geometric optimization problems in the plane to be complete for a class D p. The class D p contains both NP and Co-NP and is contained in A p = pNP.  ...  Completeness in D p is exhibited under many-one and positive reductions. Further an OptP(O(log n)) result is also obtained for some of these optimization problems.  ...  It is quite well known that, similar to polynomial-time many-one reductions, polynomial-time positive reductions ~ preserve the class of NP [16] .  ... 
doi:10.1007/bf02187711 fatcat:ncrhsoyb3fanzl3ks4giqyiloq

A Deep Learning Time Series Approach for Leaf and Wood Classification from Terrestrial LiDAR Point Clouds

Tao Han, Gerardo Arturo Sánchez-Azofeifa
2022 Remote Sensing  
Our method indicates that the CAM can explain the black-box effect of deep learning and suggests that deep learning algorithms coupled with geometric feature time series can accurately separate leaf and  ...  First, we use a multiple radius nearest neighbor approach to obtain a time series of the geometric features.  ...  Acknowledgments: The LiDAR instrument and data processing workstation were provided by the Center for Earth Observation Sciences (CEOS), University of Alberta. We also thank J.  ... 
doi:10.3390/rs14133157 fatcat:7lvp7wg4nrgg5cuz57lrrdy5ru

Finding metastable states in real-world time series with recurrence networks [article]

Iliusi Vega, Christof Schütte, Tim O. F. Conrad
2014 arXiv   pre-print
time series.  ...  As initial step, we introduce a way to set the embedding parameters used to reconstruct the state space from the time series.  ...  How to set an appropriate recurrence threshold for real-world time series is a problem long discussed 2,3 .  ... 
arXiv:1404.7807v3 fatcat:ay4miwhpmnfnvbfbgvz2vsov2u

Numerical simulation of the stress-strain state of the dental system [article]

Sergey V. Lemeshevsky, Semion A. Naumovich, Sergey S. Naumovich, Petr N. Vabishchevich, Petr E. Zakharov
2015 arXiv   pre-print
The mechanical properties are the same for almost all, but the input of geometrical data is complicated because of their individual characteristics.  ...  The second group characterized the geometric properties of objects: the size of the teeth, their spatial coordinates, the size of periodontal ligament etc.  ...  To repeat programming a code for a similar problem, we waste time and eventually money.  ... 
arXiv:1509.05208v1 fatcat:kc42g5tfxvcatemcnnp7o44i3q

Visualization of Time-Series Data in Parameter Space for Understanding Facial Dynamics

G. K. L. Tam, H. Fang, A. J. Aubrey, P. W. Grant, P. L. Rosin, D. Marshall, M. Chen
2011 Computer graphics forum (Print)  
We are in the process of collecting a new data set, which may benefit more from the newly found capability of visual analytics.  ...  A time-series in a different class, Surprise 1807, exhibits a similar set of parameters. In (b), Anger 1931 is an outlier, which is very similar to Sadness 1943 in parameter space.  ...  One primary goal is to determine whether time series of similar expressions form a cluster, and whether such a cluster has a reasonable separation from other clusters.  ... 
doi:10.1111/j.1467-8659.2011.01939.x fatcat:ax5ssbqznzbrde7x227mk77g4e

Geometric Intersection [chapter]

David Mount
2004 Handbook of Discrete and Computational Geometry, Second Edition  
They show that many of the same techniques can be applied to this problem and present algorithms with similar running times.  ...  [BGR96] showed that if the set of red-segments forms a connected set and the blue set does as well, then it is possible to report all bichromatic intersections in O((n + k) log O(1) n) time.  ... 
doi:10.1201/9781420035315.ch38 fatcat:k3gkhwpsprdbtijs4k46y57lqu

Field modeling with sampled distances

Michael Freytag, Vadim Shapiro, Igor Tsukanov
2006 Computer-Aided Design  
We show that most field problems may be solved directly by using approximate distance fields computed from designed or sampled geometric data, thus avoiding many of the difficult reconstruction and meshing  ...  problems.  ...  The mannequin head model is courtesy Tamal Dey, Geometric Modeling Group, The Ohio State University.  ... 
doi:10.1016/j.cad.2005.06.004 fatcat:hkzxwx33ara5rakah34nkanopu

The Derivation of the Montessori Didactic Apparatus

Mattie Crumpton Hardy
1917 The Elementary school journal  
The didactic apparatus used by Montessori is not a set of mere separate toys. Neither are these materials used simply for the purpose of sense training.  ...  The purpose of this paper is not to deal with the problem of complexities of method, but to find the materials with which Dr.  ...  Here the similarities cease, for Montessori has elaborated this series to a very fine point of color discriminations, and in that she stands alone.  ... 
doi:10.1086/454612 fatcat:7vovqr54jbdt7pvzjvdlom6xpe

The Derivation of the Montessori Didactic Apparatus

Mattie Crumpton Hardy
1917 The Elementary school journal  
separate toys.  ...  Here the similarities cease, for Montessori has elaborated this series to a very fine point of color discriminations, and in that she stands alone.  ... 
fatcat:ovsgzhditvgrzdhip7v7swtjza
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