Filters








1,200,223 Hits in 4.8 sec

Slit maps in the study of equal-strength cavities in n-connected elastic planar domains [article]

Yuri A. Antipov
2017 arXiv   pre-print
By reducing the governing boundary value problem to the Riemann-Hilbert problem on a symmetric Riemann surface of genus n-1 a family of conformal mappings from a parametric slit domain onto the n-connected  ...  The conformal mappings are presented in terms of hyperelliptic integrals and the zeros of the first derivative of the mappings are analyzed.  ...  Given the domain D e such a map is unique.  ... 
arXiv:1703.04896v2 fatcat:hwblor3vvnfp5n3lmyx5jzj3je

Area-preserving mapping of 3D ultrasound carotid artery images using density-equalizing reference map [article]

Gary P. T. Choi, Bernard Chiu, Chris H. Rycroft
2018 arXiv   pre-print
A smooth and area-preserving flattened map was subsequently constructed by deforming the ALS map using the proposed algorithm that combines the density-equalizing map and the reference map techniques.  ...  The initial map was generated by a previously described arc-length scaling (ALS) mapping method, which projects a 3D carotid surface onto a 2D non-convex L-shaped domain.  ...  density ρ is fully equalized on the entire domain, we obtain the desired density-equalizing reference map ξ.  ... 
arXiv:1812.03434v1 fatcat:eucrtxax7vgzbm7qtsy4j4btgu

Volumetric density-equalizing reference map with applications [article]

Gary P. T. Choi, Chris H. Rycroft
2020 arXiv   pre-print
In this work, we propose a novel method called the volumetric density-equalizing reference map (VDERM) for computing density-equalizing map for volumetric domains.  ...  The density-equalizing map, a technique developed for cartogram creation, has been widely applied to data visualization but only for 2D applications.  ...  Therefore, the accuracy of the density-equalizing reference map can be improved by increasing the resolution of the numerical domain.  ... 
arXiv:2003.09725v1 fatcat:b265rymglndu5idxlvfbwlhfgi

Quaternionic G-Monogenic Mappings in Em

Vitalii S. Shpakivskyi, Tetyana S. Kuzmenko
2018 International Journal of Advanced Research in Mathematics  
quaternionic mappings.  ...  For G-monogenicmappings we generalize some analogues of classical integral theorems of the holomorphic functiontheory of the complex variable (the surface and the curvilinear Cauchy integral theorems,the  ...  equal everywhere in the domain Ω ζ . ]), the equalities (65) are true everywhere in the domain f 1 (Ω ζ ) and the equalities (66) are true everywhere in the domain f 2 (Ω ζ ).  ... 
doi:10.18052/www.scipress.com/ijarm.12.1 fatcat:yyuei5g5zfahlhp44k6klbw7am

Understanding the Impact of Using Ontology Matching Tools for Validating Feature Models with Domain Knowledge

Nada Mahmoud, Haitham Hamza, Yasser Kamal
2017 Proceedings of the 29th International Conference on Software Engineering and Knowledge Engineering  
, detecting the semantic contradictions or semantic mappings with certain domain is missed.  ...  Two ontology-matching tools are used to map the feature model and the domain ontology, and the results have been compared.  ...  LogMap tool , String Equality tool) that have been used for detecting the semantic mappings between the WSAN FM and SSN ontology as a domain knowledge using the ontology matching tools.  ... 
doi:10.18293/seke2017-199 dblp:conf/seke/MahmoudHO17 fatcat:pcis54f2jfgfpb2kgxj335hmsi

A novel approach for contrast enhancement and noise removal of medical images

Vijeesh Govind, Arun A. Balakrishnan, Dominic Mathew
2013 2013 International Conference on Control Communication and Computing (ICCC)  
The proposed method uses Weighted Histogram Equalization (WHE) and transform domain approach to enhance medical images.  ...  The proposed WHE method with PM filter shows better PSNR values than the transform domain approach with PM filter.  ...  The mapping function is given in (1) . f (k) = w.m(k) + (1 − w).n(k) (1) where m(k) is the normal mapping function from the conventional histogram equalization method, n(k) is the null mapping function  ... 
doi:10.1109/iccc.2013.6731641 fatcat:mrfckyp725dqjfuml76swinqku

Remarks on "Some Problems in Conformal Mapping"

James A. Jenkins
1952 Proceedings of the American Mathematical Society  
In order to justify this statement we observe first that equality of the modules for triply-connected domains implies equality of the modules for the hexagons into which the domains are divided by their  ...  For the triply-connected domains there is a symmetric mapping of the one into the other characterized by the type of the canonical domains in question.  ... 
doi:10.2307/2032472 fatcat:f3pc3akd4jc2vjkv2esfmc3zsq

Remarks on ''Some problems in conformal mapping."

James A. Jenkins
1952 Proceedings of the American Mathematical Society  
In order to justify this statement we observe first that equality of the modules for triply-connected domains implies equality of the modules for the hexagons into which the domains are divided by their  ...  For the triply-connected domains there is a symmetric mapping of the one into the other characterized by the type of the canonical domains in question.  ... 
doi:10.1090/s0002-9939-1952-0045828-5 fatcat:np6hru43snbyff7xh4gvji2ffm

Learning domain-independent string transformation weights for high accuracy object identification

Sheila Tejada, Craig A. Knoblock, Steven Minton
2002 Proceedings of the eighth ACM SIGKDD international conference on Knowledge discovery and data mining - KDD '02  
In this paper, we discuss extensions to the Active Atlas system, which allow it to learn to tailor the weights of a set of general transformations to a specific application domain through limited user  ...  The experimental results demonstrate that this approach achieves higher accuracy and requires less user involvement than previous methods across various application domains.  ...  Acknowledgments The research reported here was supported in part by the United States Air Force under contract number F49620-01-C-0042, in part by the Defense Advanced Research Projects Agency (DARPA)  ... 
doi:10.1145/775094.775099 fatcat:fievb4mcmzb6vbhxgtzjxxwrx4

Learning domain-independent string transformation weights for high accuracy object identification

Sheila Tejada, Craig A. Knoblock, Steven Minton
2002 Proceedings of the eighth ACM SIGKDD international conference on Knowledge discovery and data mining - KDD '02  
In this paper, we discuss extensions to the Active Atlas system, which allow it to learn to tailor the weights of a set of general transformations to a specific application domain through limited user  ...  The experimental results demonstrate that this approach achieves higher accuracy and requires less user involvement than previous methods across various application domains.  ...  Acknowledgments The research reported here was supported in part by the United States Air Force under contract number F49620-01-C-0042, in part by the Defense Advanced Research Projects Agency (DARPA)  ... 
doi:10.1145/775047.775099 dblp:conf/kdd/TejadaKM02 fatcat:yx2q747cwvay7jjc5yn6zd67pm

Single Carrier FDMA [chapter]

2008 Single Carrier FDMA  
Introduction and Background -cont. 7 Frequency Domain Equalization Frequency Domain Equalization Frequency Domain Equalization Frequency Domain Equalization Single Carrier FDMA | Hyung G.  ...  Myung • For broadband multi-path channels, conventional time domain equalizers are impractical because of complexity. -Very long channel impulse response in the time domain.  ... 
doi:10.1002/9780470758717.ch3 fatcat:fub2q3d3vzfnhg5dwlu376jdem

Introduction To Single Carrier Fdma

Hyung N Myung
2007 Zenodo  
Publication in the conference proceedings of EUSIPCO, Poznan, Poland, 2007  ...  The receiver transforms the received signal into the frequency domain via DFT, de-maps the subcarriers, and then performs frequency domain equalization.  ...  domain equalizer [15] .  ... 
doi:10.5281/zenodo.40644 fatcat:5ezpsqrlbfhqlltr4qzoks3ppq

Identity Mapping [chapter]

Wolfgang Essmayr, Edgar Weippl
2000 IFIP Advances in Information and Communication Technology  
Identity mapping allows assigning the identity of one human to different users in various systems.  ...  This papet describes the different types of mappings that are necessary to implement such a system.  ...  By defining a condition that compares source to target identities for equality, user1 at the source domain could be automatically mapped to user1 at the target domain.  ... 
doi:10.1007/978-0-387-35515-3_9 fatcat:keebmbtgarfj3pnhfupv7he4i4

Diameter problems for univalent functions with quasiconformal extension

Paul Deiermann
1993 International Journal of Mathematics and Mathematical Sciences  
Known results on the diameter of a complementary component of the image domain of a univalent function are extended.  ...  Applications to the transfinite diameters of families of non-overlapping functions and an extension of the Koebe one-quarter theorem are included.  ...  This work was done under the supervision of Professor James A. Jenkins of Washington University in St. Louis.  ... 
doi:10.1155/s0161171293000857 fatcat:q5o55tyagbc3rhusagbyiurhdy

Big Cohen-Macaulay and seed algebras in equal characteristic zero via ultraproducts [article]

Geoffrey D. Dietz, Rebecca R.G
2017 arXiv   pre-print
In a past article, the first author developed a theory of R-algebras, termed seeds, that can be mapped to balanced big Cohen-Macaulay R-algebras.  ...  is stable under base change between complete, local domains.  ...  We also thank the anonymous referee for many helpful suggestions that improved the exposition of the paper.  ... 
arXiv:1608.08193v2 fatcat:4vk3lpxknbgcdoypjgvzzjbzp4
« Previous Showing results 1 — 15 out of 1,200,223 results