Efficient and robust estimation for the one-sided stable distribution of index

A static statistical approach to the Bak, Tang and Wiesenfeld (BTW) sandpile model is proposed. With this approach, the exact avalanche distribution of the one-dimensional BTW sandpile is given concisely. Furthermore, we investigate the two-dimensional BTW sandpile and obtain some interesting results. First, the total particle number of the two-dimensional BTW sandpile obeys some kind of stable distribution. With the increase of the sandpile scale, the stable distribution transits from Gamma to Normal distribution. Second, when the total number of particles is fixed, the avalanche distribution is not power law. The system, however, shows a kind of "negative temperature" phenomenon when the particle number increases. Third, power law distribution of the avalanche could be viewed as the result of the superposition of a series of weighted distributions which do not yield power law.

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Vidljive i prikrivene sociokulturne posljedice uniformiranosti suvremenog turizma

Papers on Philosophy Psychology Sociology and Pedagogy ◽

10.15291/radovifpsp.2518 ◽

2018 ◽

Vol 38 (15) ◽

Author(s):

Vlatko Jadrešić

Keyword(s):

Stable Distribution ◽

Social Economic ◽

Science And Technology ◽

Economic Effects ◽

The Other ◽

Economic Phenomenon ◽

The Social ◽

Scientific Project ◽

The One ◽

Negative Phenomena

The duality of contemporary tourism is reflected in the stable distribution o f, on the one hand, positive and, on the other, negative and unfavourable social and economic functions. The paper investigates the causes and the manifestations of a specific and more and more significant (regarding its immanent dangers) field of tourism which speaks of the so-called “other”, dark, negative, unfavourable, conflictual, even pathological in certain elements side of this contemporary and prestigious-important social-economic phenomenon. The investigation is a segment of the author’s scientific project which has been accepted by the Croatian Ministry of Science and Technology entitled “Social and Economic Contradictions of Croatian Tourism” and whichwill investigate the social and sociocultural negative phenomena in tourism both in Croatia and elsewhere. The aim and purpose of die project is to diagnose the problems, to systematise them, to establish the ways and measures to relativise, alleviate or uproot a part or the totality of these phenomena all with the purpose to affirm and advance its positive social and economic functions and activities in order to achieve more permanent and lucrative social and economic effects. Various examples of visible and hidden consequences from world tourism culled from the relevant sources warn and make suggestions to Croatian toursim how to “actualize” this question for the benefit of tourism in Croatia.

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Averaging and the Shape of the Correlation Function

Universe ◽

10.3390/universe5060148 ◽

2019 ◽

Vol 5 (6) ◽

pp. 148 ◽

Cited By ~ 1

Author(s):

Boris Tomášik ◽

Jakub Cimerman ◽

Christopher Plumberg

Keyword(s):

Monte Carlo ◽

Correlation Function ◽

Monte Carlo Simulations ◽

Blast Wave ◽

Stable Distribution ◽

Wave Model ◽

Gaussian Form ◽

One Dimensional ◽

The One

A brief pedagogical introduction to correlation femtoscopy is given. We then focus on the shape of the correlation function and discuss the possible reasons for its departure from the Gaussian form and better reproduction with a Lévy stable distribution. With the help of Monte Carlo simulations based on asymmetric extension of the Blast-Wave model with resonances we demonstrate possible influence of averaging over many events and integrating over wide momentum bins on the shape of the correlation function. We also show that the shape is strongly influenced by the use of the one-dimensional parametrisation in the q i n v variable.

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2-D DOA Robust Estimation of Echo Signals Based on Multiple Satellites Passive Radar in the Presence of Alpha Stable Distribution Noise

IEEE Access ◽

10.1109/access.2019.2894997 ◽

2019 ◽

Vol 7 ◽

pp. 16032-16042 ◽

Cited By ~ 5

Author(s):

Mingqian Liu ◽

Junlin Zhang ◽

Jie Tang ◽

Fan Jiang ◽

Peng Liu ◽

...

Keyword(s):

Robust Estimation ◽

Stable Distribution ◽

Passive Radar ◽

Alpha Stable Distribution

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Evolutionary Algorithm for Uncertain Evaluation Function

New Mathematics and Natural Computation ◽

10.1142/s1793005715400062 ◽

2015 ◽

Vol 11 (02) ◽

pp. 201-215

Author(s):

Yusuke Tajima ◽

Masaya Nakata ◽

Hiroyasu Matsushima ◽

Yoshihiro Ichikawa ◽

Hiroyuki Sato ◽

...

Keyword(s):

Evolutionary Algorithm ◽

Robust Estimation ◽

High Performance ◽

Sleep Stage ◽

Probability Model ◽

Estimation Method ◽

High Accuracy ◽

Evaluation Function ◽

The One ◽

Stage Estimation

This paper proposes the evolutionary algorithm (EA) for the uncertain evaluation function in which fitness values change even with the same input. In detail, the proposed method employs the probability model to acquire the appropriate attributes that can drive the good solutions. To investigate the effectiveness of the proposed method, we apply it to sleep stage estimation problem where an accuracy of sleep stage estimation changes even in the same estimation filter (correspondingly the solutions). The experimental results have revealed the following implications: (i) The proposed method succeeded to acquire the robust estimation filters which stably derive a high accuracy of the sleep stage estimation; (ii) in detail, the proposed method with the roulette selection shows higher performance than the one with the random selection; and (iii) the proposed method shows high performance and robustness to the different days in comparison with the conventional sleep stage estimation method.

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On the use of acoustic data to characterise the thermohaline stratification in a tropical ocean

10.5194/os-2021-101 ◽

2021 ◽

Author(s):

Ramilla Vieira Assunção ◽

Anne Lebourges-Dhaussy ◽

Alex Costa da Silva ◽

Bernard Bourlès ◽

Gary Vargas ◽

...

Keyword(s):

Robust Estimation ◽

Mixed Layer Depth ◽

Ecosystem Structure ◽

Tropical Ocean ◽

Thermohaline Structure ◽

Acoustic Data ◽

Vertical Extension ◽

The One ◽

Thermohaline Stratification ◽

The Vertical Distribution

Abstract. The use of active acoustic to monitor abiotic structures and processes in the ocean have been gaining ground in oceanography. In some systems, acoustics allow the robust estimation of the depth of the pycnocline or thermocline either directly or indirectly when the physical structures drive the one of organisms. Here, we examined the feasibility of extracting the thermohaline structure (mixed-layer depth, upper and lower thermocline) from echosounder data collected in the oligotrophic Southwestern tropical Atlantic region at two seasons (spring and fall), more precisely in two areas with different thermohaline conditions, at both day and night. For that, we tested three approaches: (i) the vertical extension of the epipelagic community; (ii) the use of acoustic gradients; and (iii) a cross-wavelet approach. Results show that, even if the thermohaline structure impacts the vertical distribution of acoustic scatters, the resultant structuring did not allow for a robust estimation of the thermohaline limits indicating that other oceanographic or biological processes are acting. This result prevents for a fine-scale representation of the upper-layer turbulence from acoustic data. However, studying the proportion of acoustic biomass within each layer provides interesting insights on ecosystem structure in different thermohaline, seasonal and diel scenarios.

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Note on Selection of Coordinate Systems for Geodynamics

International Astronomical Union Colloquium ◽

10.1017/s0252921100051174 ◽

1975 ◽

Vol 26 ◽

pp. 395-407

Author(s):

S. Henriksen

Keyword(s):

Sea Level ◽

The Other ◽

Coordinate Systems ◽

Mean Sea Level ◽

The Earth ◽

The One ◽

Static Systems ◽

Selection Of

The first question to be answered, in seeking coordinate systems for geodynamics, is: what is geodynamics? The answer is, of course, that geodynamics is that part of geophysics which is concerned with movements of the Earth, as opposed to geostatics which is the physics of the stationary Earth. But as far as we know, there is no stationary Earth – epur sic monere. So geodynamics is actually coextensive with geophysics, and coordinate systems suitable for the one should be suitable for the other. At the present time, there are not many coordinate systems, if any, that can be identified with a static Earth. Certainly the only coordinate of aeronomic (atmospheric) interest is the height, and this is usually either as geodynamic height or as pressure. In oceanology, the most important coordinate is depth, and this, like heights in the atmosphere, is expressed as metric depth from mean sea level, as geodynamic depth, or as pressure. Only for the earth do we find “static” systems in use, ana even here there is real question as to whether the systems are dynamic or static. So it would seem that our answer to the question, of what kind, of coordinate systems are we seeking, must be that we are looking for the same systems as are used in geophysics, and these systems are dynamic in nature already – that is, their definition involvestime.

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Nucleation of Disorder in Fe3Al Alloys

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100061574 ◽

1967 ◽

Vol 25 ◽

pp. 312-313

Author(s):

P. R. Swann ◽

W. R. Duff ◽

R. M. Fisher

Keyword(s):

Electron Microscopy ◽

Transmission Electron Microscopy ◽

Annealing Temperature ◽

Antiphase Domain ◽

Effect Of Temperature ◽

Domain Structures ◽

Transmission Electron ◽

Domain Boundaries ◽

Higher Temperature ◽

The One

Recently we have investigated the phase equilibria and antiphase domain structures of Fe-Al alloys containing from 18 to 50 at.% Al by transmission electron microscopy and Mössbauer techniques. This study has revealed that none of the published phase diagrams are correct, although the one proposed by Rimlinger agrees most closely with our results to be published separately. In this paper observations by transmission electron microscopy relating to the nucleation of disorder in Fe-24% Al will be described. Figure 1 shows the structure after heating this alloy to 776.6°C and quenching. The white areas are B2 micro-domains corresponding to regions of disorder which form at the annealing temperature and re-order during the quench. By examining specimens heated in a temperature gradient of 2°C/cm it is possible to determine the effect of temperature on the disordering reaction very precisely. It was found that disorder begins at existing antiphase domain boundaries but that at a slightly higher temperature (1°C) it also occurs by homogeneous nucleation within the domains. A small (∼ .01°C) further increase in temperature caused these micro-domains to completely fill the specimen.

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Fundamental Research into Thin Films in a Developing Country

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100095753 ◽

1972 ◽

Vol 30 ◽

pp. 500-501

Author(s):

J.A. Eades ◽

E. Grünbaum

Keyword(s):

Thin Films ◽

Growth Process ◽

Empirical Process ◽

Nucleation And Growth ◽

Research Groups ◽

Film Research ◽

Fundamental Research ◽

Controlled Deposition ◽

The One ◽

The University

In the last decade and a half, thin film research, particularly research into problems associated with epitaxy, has developed from a simple empirical process of determining the conditions for epitaxy into a complex analytical and experimental study of the nucleation and growth process on the one hand and a technology of very great importance on the other. During this period the thin films group of the University of Chile has studied the epitaxy of metals on metal and insulating substrates. The development of the group, one of the first research groups in physics to be established in the country, has parallelled the increasing complexity of the field.The elaborate techniques and equipment now needed for research into thin films may be illustrated by considering the plant and facilities of this group as characteristic of a good system for the controlled deposition and study of thin films.

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STM studies of crystal growth

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100086179 ◽

1991 ◽

Vol 49 ◽

pp. 374-375

Author(s):

M. G. Lagally

Keyword(s):

Crystal Growth ◽

Molecular Beam ◽

Chemical Vapor ◽

Sputter Deposition ◽

Field Of View ◽

Scanning Tunneling ◽

Wide Field ◽

Tunneling Microscopy ◽

Wide Field Of View ◽

The One

It has been recognized since the earliest days of crystal growth that kinetic processes of all Kinds control the nature of the growth. As the technology of crystal growth has become ever more refined, with the advent of such atomistic processes as molecular beam epitaxy, chemical vapor deposition, sputter deposition, and plasma enhanced techniques for the creation of “crystals” as little as one or a few atomic layers thick, multilayer structures, and novel materials combinations, the need to understand the mechanisms controlling the growth process is becoming more critical. Unfortunately, available techniques have not lent themselves well to obtaining a truly microscopic picture of such processes. Because of its atomic resolution on the one hand, and the achievable wide field of view on the other (of the order of micrometers) scanning tunneling microscopy (STM) gives us this opportunity. In this talk, we briefly review the types of growth kinetics measurements that can be made using STM. The use of STM for studies of kinetics is one of the more recent applications of what is itself still a very young field.

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