Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Nikos P. Pitsianis"'
Publikováno v:
HPEC
We introduce the computational problem of graphlet transform of a sparse large graph. Graphlets are fundamental topology elements of all graphs/networks. They can be used as coding elements to encode graph-topological information at multiple granular
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b489be050f029e62c080b94aa95694d
https://doi.org/10.1109/hpec43674.2020.9286205
https://doi.org/10.1109/hpec43674.2020.9286205
Publikováno v:
2020 IEEE High Performance Extreme Computing Conference (HPEC)
ArXiv
HPEC
ArXiv
HPEC
We introduce a new method for temporal pattern analysis of scientific collaboration networks. We investigate in particular virus research activities through five epidemic or pandemic outbreaks in the recent two decades and in the ongoing pandemic wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4b41df9a0bafc0577076f80bdcdb6bc
Publikováno v:
HPEC
We introduce SG-t-SNE, a nonlinear method for embedding stochastic graphs/networks into d-dimensional spaces, d = 1, 2, 3, without requiring vertex features to reside in, or be transformed into, a metric space. Graphs/networks are relational data, pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb2b1f4c481e7ca9a9c562d73bf027bf
https://doi.org/10.1109/hpec.2019.8916505
https://doi.org/10.1109/hpec.2019.8916505
Publikováno v:
Communications in Computational Physics. 20:534-550
We present RECFMM, a program representation and implementation of a recursive scheme for parallelizing the adaptive fast multipole method (FMM) on shared-memory computers. It achieves remarkable high performance while maintaining mathematical clarity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c11f108bb950d5e6a1d8ba56e16dfb3b
https://doi.org/10.4208/cicp.230216.140416sw
https://doi.org/10.4208/cicp.230216.140416sw
Publikováno v:
HPEC
The density peaks (DP) algorithm for cluster analysis, introduced by Rodriguez and Laio in 2014, has proven empirically competitive or superior in multiple aspects to other contemporary clustering algorithms. Yet, it suffers from certain drawbacks an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9a4176dca55ffcd06c781e97a0bb2b5
https://doi.org/10.1109/hpec.2018.8547519
https://doi.org/10.1109/hpec.2018.8547519
Publikováno v:
HPEC
In this paper, we introduce an Array Memory (AM) processor. The AM processor uses a shared memory network amenable to on-chip 3D stacking. Node couplings use a 1 to K adjacency of connections in each dimension of communication of an array of nodes, s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b58c73567b42d15518a4c45945439f1
https://doi.org/10.1109/hpec.2017.8091069
https://doi.org/10.1109/hpec.2017.8091069
Publikováno v:
Journal of Open Source Software. 4:1577
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::febb486b8407b4d948881406a222727d
https://doi.org/10.21105/joss.01577
https://doi.org/10.21105/joss.01577
Autor:
Bo Zhang, Xiaobai Sun, Benzhuo Lu, Nikos P. Pitsianis, Jingfang Huang, J. Andrew McCammon, Xiaolin Cheng
Publikováno v:
Communications in Computational Physics. 13:107-128
This paper summarizes the mathematical and numerical theories and computational elements of the adaptive fast multipole Poisson-Boltzmann (AFMPB) solver. We introduce and discuss the following components in order: the Poisson-Boltzmann model, boundar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa384be5fed68a4fac2ed65fb692932f
https://doi.org/10.4208/cicp.210711.111111s
https://doi.org/10.4208/cicp.210711.111111s
Publikováno v:
Journal of Computational Physics. 230:5807-5821
We present in this paper a new kernel-independent fast multipole method (FMM), named as FKI-FMM, for pairwise particle interactions with translation-invariant kernel functions. FKI-FMM creates, using numerical techniques, sufficiently accurate and co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8295281b39cec72e59902183d87017d2
https://doi.org/10.1016/j.jcp.2011.03.049
https://doi.org/10.1016/j.jcp.2011.03.049
Autor:
James M. Slater, Nikos P. Pitsianis, Barbara A. Holshouser, Bob D. Guenther, David Scott Kittle, Robert D. Pearlstein
Publikováno v:
Medical Physics. 35:5708-5712
Three dimensional grid phantoms offer a number of advantages for measuring imaging related spatial inaccuracies for image guided surgery and radiotherapy. The authors examined the use of rapid prototyping technology for directly fabricating 3D grid p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b439b6cf534f5cc7a13b555e4672d59
https://doi.org/10.1118/1.3006198
https://doi.org/10.1118/1.3006198