Filters








15 Hits in 4.3 sec

Conjectures on spectral properties of ALIF algorithm [article]

Giovanni Barbarino, Antonio Cicone
2020 arXiv   pre-print
In [11], the authors analyzed the spectral properties of the matrices produced by the ALIF method, in order to study its stability.  ...  Various results are achieved in that work through the use of Generalized Locally Toeplitz (GLT) sequences theory, a powerful tool originally designed to extract information on the asymptotic behavior of  ...  Acknowledgements Antonio Cicone is a member of the Italian "Gruppo Nazionale di Calcolo Scientifico" (GNCS) of the Istituto Nazionale di Alta Matematica "Francesco Severi" (INdAM).  ... 
arXiv:2009.00582v1 fatcat:xfxohcbp3vaqpnuxy5t2raurbu

Page 683 of Mathematical Reviews Vol. 54, Issue 2 [page]

1977 Mathematical Reviews  
As a corollary of one of the main results, it is then shown that these realizations are not always optimal, thereby settling a conjecture stated by H. A.  ...  Finally, the correlation properties of this system are investigated. Luigi M. Ricciardi (Turin) Mamatoy, Ju. A. ptotic properties of shortest coverings. (Russian Dokl. Akad.  ... 

Multidimensional Iterative Filtering method for the decomposition of high-dimensional non-stationary signals [article]

Antonio Cicone, Haomin Zhou
2015 arXiv   pre-print
We illustrate the promising performance of MIF algorithm, equipped with high-dimensional FP filters, when applied to the decomposition of 2D signals. [1] A. Cicone, J. Liu, and H.  ...  Iterative Filtering (IF) is an alternative technique to the Empirical Mode Decomposition (EMD) algorithm for the decomposition of non-stationary and non-linear signals.  ...  From what is known for the 1D Iterative Filtering algorithm [2] , we can conjecture that in higher dimensions a class of filters which guarantees the MIF convergence is given by a proper extension of  ... 
arXiv:1507.07173v1 fatcat:pzyxm3ei6rgfjh7nfqhhm75m2y

New Pharmaceutical Salts of Trazodone

Jolanta Jaśkowska, Przemysław Zaręba, Anna Drabczyk, Agnieszka Kozak, Izabela D. Madura, Zbigniew Majka, Edyta Pindelska
2021 Molecules  
The main goal of our research was to find salts with better physicochemical properties and to make an attempt to associate them with both the anion structure and the most prominent interactions exhibited  ...  the active substance and can be used for the preparation of the tables with a delay or prolonged mode of action.  ...  Conflicts of Interest: The authors declare no conflict of interest. Sample Availability: Samples of compounds T:HBr and T:OHN are available from the authors.  ... 
doi:10.3390/molecules26030769 pmid:33540851 pmcid:PMC7867375 fatcat:utd5k4linzfy3jrhir6zjskyfa

Spectral representations and global maps of cellular automata dynamics

Theophanes E. Raptis
2016 Chaos, Solitons & Fractals  
We present a spectral representation of any computation performed by a Cellular Automaton (CA) of arbitrary topology and dimensionality via an appropriate coding scheme in Fourier space that can be implemented  ...  We explore further consequences of this encoding and we provide a simple example based on the Game-of-Life where we find global maps for small lattices indicating an interesting underlying recursive structure  ...  This also allows greater flexibility in case one would be interested in applying genetic algorithm techniques for optimizing neighborhoods in particular applications with emphasis on the minimal coding  ... 
doi:10.1016/j.chaos.2016.07.010 fatcat:72rhwiui2fgtzimgt4c3rsmmde

Google matrix analysis of directed networks

Leonardo Ermann, Klaus M. Frahm, Dima L. Shepelyansky
2015 Reviews of Modern Physics  
Due to the rapid growth of World Wide Web, social and communication networks, new mathematical methods have been invented to characterize the properties of these networks on a more detailed and precise  ...  This review describes the Google matrix analysis of directed complex networks demonstrating its efficiency on various examples including World Wide Web, Wikipedia, software architecture, world trade, social  ...  Zhirov for fruitful collaborations on the topics included in this review. We also thank our partners of the EC FET open project NADINE A. Benczúr, N. Litvak, S. Vigna, and colleague A.  ... 
doi:10.1103/revmodphys.87.1261 fatcat:37u43k5wzvf67ieqzzjhyo3fn4

Three-dimensional point-cloud room model in room acoustics simulations

Milos Markovic, So/ren K. Olesen, Dorte Hammersho/i
2013 Journal of the Acoustical Society of America  
These shifts are correlated with the spatial and spectral variation of the acoustical properties of the sonic crystal.  ...  The effects of the spatial and spectral properties of transducer beams on the accurate characterization of the characteristic dimensions of corrugations are investigated in details both theoretically and  ...  To improve sampling, population Monte Carlo is applied with a large number of interacting parallel Markov chains employing a loadbalancing algorithm on a computer cluster.  ... 
doi:10.1121/1.4806371 fatcat:ln4w6j7cjvchrckf2gzfmeiwoi

The Nexus Between Artificial Intelligence and Economics [chapter]

Ad J. W. van de Gevel, Charles N. Noussair
2013 SpringerBriefs in Economics  
Speculating on seemingly unachievable goals like this one is subject to a cognitive trap, the belief that improbable technological advances automatically become more likely simply by looking further away  ...  Pfeifer and Scheier (1999), for example, argue that "intelligence cannot merely exist in the form of an abstract algorithm but requires a physical instantiation, a body".  ...  However, the evidence on these algorithms strongly suggests that no one algorithm performs best in all situations.  ... 
doi:10.1007/978-3-642-33648-5_1 fatcat:6uclihbcqrfajkhwpapp5wgkou

ALICE: Physics Performance Report, Volume I

ALICE Collaboration, F Carminati, P Foka, P Giubellino, A Morsch, G Paic, J-P Revol, K Safarík, Y Schutz, U A Wiedemann (editors)
2004 Journal of Physics G: Nuclear and Particle Physics  
ALICE is a general-purpose heavy-ion experiment designed to study the physics of strongly interacting matter and the quark-gluon plasma in nucleus-nucleus collisions at the LHC.  ...  Acknowledgments It is a pleasure to acknowledge that the PPR has benefited from a number of contributions from physicists outside the ALICE Collaboration, listed above as External Contributors, in particular  ...  The Collaboration wishes to thank all the administrative and technical staff involved during the preparation of the Physics Performance Report Volume I and in particular: the ALICE secretariat, M Connor  ... 
doi:10.1088/0954-3899/30/11/001 fatcat:kpuzyaivrnbyzjkz4lbxas4sla

Abstracts from the Astrobiology Science Conference 2004

2004 International Journal of Astrobiology  
In particular, I will discuss: (i) The requirements for carbon-based life and their dependence on the values of physical constants.  ...  (iv) The possibility of time-varying constants of nature. (v) The question of the potential rarity of intelligent life.  ...  the most abundant source of genetic material on Earth and therefore are an obvious target for looking for life on non earth based bodies.  ... 
doi:10.1017/s1473550404001648 fatcat:7edgphlk6bb2xf73w3rrb2vc3m

ACNP 58th Annual Meeting: Poster Session III

2019 Neuropsychopharmacology  
Seven (9%) of 79 patients with antidementia drugs were on antipsychotics, 4 (5%) were on benzodiazepines, 9 (11%) were on hypnotics, 9 (11%) were on antidepressants, 2 (3%) were on mood stabilizers, and  ...  In addition, based on the findings, we present the optimal strategies of treatment for AD.  ...  Longitudinal Interval Follow-Up Evaluation (ALIFE).  ... 
doi:10.1038/s41386-019-0547-9 pmid:31801974 pmcid:PMC6957926 fatcat:dd7d43ysfvc5bbbstfl73szya4

Reading metrics for estimating task efficiency with MT output

Sigrid Klerke, Sheila Castilho, Maria Barrett, Anders Søgaard
2015 Proceedings of the Sixth Workshop on Cognitive Aspects of Computational Language Learning   unpublished
ii Preface The Workshop on Cognitive Aspects of Computational Language Learning (CogACLL) took place on September 18, 2015 in Lisbon, Portugal, in conjunction with the EMNLP 2015.  ...  These have been discussed in the context of first and second language acquisition and bilingualism, with cross linguistic studies shedding light on the influence of the language and the environment.  ...  Acknowledgments The present research was supported by a BOF/TOP grant (ID 29072) of the Research Council of the University of Antwerp.  ... 
doi:10.18653/v1/w15-2402 fatcat:udrul5rvtja33gy65be5yrk76m

The uncertainty principle [article]

H Hans Martens, FW Frans Sluijter, J Jan De Graaf
1991
On the one hand, the emphasis is strongly towards instrumentalism: the larger part of the textbooks is devoted to the development of algorithms for specific calculations, without bothering too much about  ...  measured, the probability of obtaining a result in the interval AA is given by P(AA) = Tr[p E(AA)] , where {E(AA)} is the spectral family associated with the operator A by virtue of the spectral lheorem  ...  (2) means that this chain has a summable stationary distribution (one for every p). lf a non-empty set J Ç M has the property that V mEJ EiceJ "Y1an = 1, we call it closed.  ... 
doi:10.6100/ir348359 fatcat:vtlrv2outnh7rn7vxrlnhcoyda

On the Origin of Arabic Script

Kamal Mansour
Graphemics in the 21st Century   unpublished
The author is deeply grateful to the programme committee and local organisers of the /gʁafematik/ conference for giving me the opportunity to present an earlier version of this study.  ...  a draft of this paper, and to the Focolari community in Man for their generous hospitality.  ...  Illustrating the Processes That Lead to One Crucial Aspect of the Writing System How did the writing system of Arabic emerge? To this question, one can only give conjectural answers.  ... 
doi:10.36824/2018-graf-mans fatcat:mlqnilf5y5aylimzundwaghswe

History Managing Editors Editorial Board On the L-infinity description of the Hitchin Map

Graziano Gentili, Enzo Mitidieri, Bruno Zimmermann, Alessandro Fonda, Emilia Mezzetti, Pierpaolo Omari, Maura Ughi, Andrei Agrachev, Trieste -Sissa, Giovanni Alessandrini, Claudio Arezzo, Francesco Baldassarri (+35 others)
2014 An International Journal of Mathematics   unpublished
We exhibit, for a G-Higgs bundle on a compact complex manifold, a subspace of the second cohomology of the controlling dg Lie algebra, containing the obstructions to smoothness.  ...  This extends recent results of E. Martinengo.  ...  I would like to thank ICTP and the organisers of the Conference on Hodge Theory and Related Topics (2010), during which an early version of this material was completed.  ... 
fatcat:ijnwqckczfffphc73girtt7ye4