scholarly journals Which Algorithms are Feasible? Maxent Approach

Author(s):  
D. E. Cooke ◽  
V. Kreinovich ◽  
L. Longpré
Keyword(s):  
2020 ◽  
Vol 6 (3) ◽  
pp. 1795-1806 ◽  
Author(s):  
Sreehari Raman ◽  
Thekke Thumbath Shameer ◽  
Raveendranathanpillai Sanil ◽  
Pooja Usha ◽  
Sanjayan Kumar

1994 ◽  
Vol 05 (06) ◽  
pp. 987-995 ◽  
Author(s):  
S.V. MESHKOV ◽  
D.V. BERKOV

The fast algorithm of the Maximum Entropy (MaxEnt) numerical solution of the linear inverse problem is described. The minimization of a general functional intrinsic to the MaxEnt approach is reduced to an iteration procedure with each step being a constrained least-squares problem (minimization of a quadratic functional with linear inequality constraints). The algorithm is structurally simple and can be assembled from blocks available in standard program libraries. The algorithm is tested on “toy” tasks with exponential kernel, as well as on practical problems of the recovery of the spectral density of strongly correlated quantum systems from the imaginary time Green’s functions obtained by Monte Carlo.


Author(s):  
C. M. SARRIS ◽  
A. N. PROTO ◽  
F. B. MALIK
Keyword(s):  

2021 ◽  
pp. 126081
Author(s):  
Alexander Cotrina Sánchez ◽  
Subhajit Bandopadhyay ◽  
Nilton B. Rojas Briceño ◽  
Polash Banerjee ◽  
Cristóbal Torres Guzmán ◽  
...  

2016 ◽  
Vol 29 (1) ◽  
pp. 16 ◽  
Author(s):  
N Sivaraj ◽  
M Elangovan ◽  
V Kamala ◽  
SR Pandravada ◽  
P Pranusha ◽  
...  

2007 ◽  
Vol 21 (13n14) ◽  
pp. 2517-2527 ◽  
Author(s):  
C. M. SARRIS ◽  
A. N. PROTO ◽  
F. B. MALIK

We consider the Hubbard-like Hamiltonian used in Physica B 352 (2004) 269-279, using the MaxEnt approach and a CSCO, as the set of relevant operators which, obviously, close a partial Lie algebra with the Hamiltonian. So, it is possible to define a positive definite metric on the space spanned by the mean values of the CSCO. Particularly, the selected operators represent the occupation number, the aligned and antialigned pairs per site, respectively. The interesting question to be examined here is whether the above mentioned Hamiltonian have the property that the expectation values of a suitable operator are indeed zero and one (or a constant) qubits, and zero and +1 and -1, i.e., qutrits.


2021 ◽  
Vol 38 ◽  
pp. 00007
Author(s):  
Konstantin Baikov ◽  
Obidjon Turdiboev ◽  
Elena Baikova

Geospatial investigation of distribution Salvia aethiopis L. (Lamiaceae) on the eastern limits of the range is performed using climatic modeling by MAXENT approach. Climatic conditions for the 33 local populations of the species as well as territories neighbouring to them were examined in detail, using concepts of nestle-cells and a small polygone. According to obtained results, the most suitable climatic conditions are in only two small polygons (SP) around local populations with coordinates 69.96E:42.48N and 70.03E:42.47N in central part of the area. They have 7.7 average points per a cell of 9.0 maximum. Other seven SP have average points per a cell 7.1–7.3 (quite suitable climatic conditions), all in the western part of the area, with coordinates from 66.69E to 67.69E and from 38.21N to 39.26N. High values of raw prediction are in the locations with coordinates 70.97E:42.48N (0.123; Zhualyn District in Zhambyl Region, Kazakhstan), 70.03E:42.47N (0.063; Keltemashat, Tulkibas District, Turkestan Region, Kazakhstan), 67.09E:38.34 (0.063; Yuqori Machay, Surkhandarya Region, Uzbekistan), and 69.96E:42.48N (0.054; Antonovka, Tulkibas District, Turkestan Region, Kazakhstan). These local populations of S. aethiopis should be assessed as the most likely secondary centers for further expansion of the species in the Middle Asian Region.


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