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A general model for finite-sample effects in training and testing of competing classifiers

Autor: Marcus A. Maloof, S.V. Beiden, R.F. Wagner

Publikováno v: IEEE Transactions on Pattern Analysis and Machine Intelligence. 25:1561-1569

The conventional wisdom in the field of statistical pattern recognition (SPR) is that the size of the finite test sample dominates the variance in the assessment of the performance of a classical or neural classifier. The present work shows that this

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4bbd2b122aebfa95b7d87e6a57f07c55
https://doi.org/10.1109/tpami.2003.1251149

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The effect of lattice relaxation and charge transfer on mixing energies and configurational interactions in alloys: cluster calculations for the dilute BCC Ti1-xVxand FCC Ni1-xAlxsystems

Autor: V G Vaks, German D. Samolyuk, S.V. Beiden, N.E. Zein

Publikováno v: Journal of Physics: Condensed Matter. 6:8487-8502

We present self-consistent LMTO-ASA cluster calculations of the solution energy Q and the nearest- and next-nearest-neighbour configurational interactions, V1 and V2, for the dilute BCC Ti1-xVx and FCC Ni1-xAlx alloys. The lattice relaxation effects

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b356f36d32352318ceed8ac2a76fd24b
https://doi.org/10.1088/0953-8984/6/41/011

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Effects of intra-atomic correlations on the equilibrium lattice properties of transition metals

Autor: S.V. Beiden, N.E. Zein, German D. Samolyuk

Publikováno v: Physics Letters A. 177:167-171

We propose a new form of the density functional that takes into account the intra-atomic correlations of valence d-electrons in 3d-transition metals. A Gutzwiller-type variational many-body wavefunction is used to define the functional. The method is

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a9d595a0e897ab2fa3d2dfa6456aa83c
https://doi.org/10.1016/0375-9601(93)90529-9

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On the significance of local lattice distortions for configurational interactions in substitutional alloys

Autor: S.V. Beiden, V.G. Vaks

Publikováno v: Physics Letters A. 163:209-213

We present quantitative estimates of the local lattice distortion (“deformational”) contribution to the configurational interactions in disordered substitutional alloys which determine their ordering, segregation and related phenomena. We show th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8b89a194c8625e06fb8623cad91f1201
https://doi.org/10.1016/0375-9601(92)90410-n

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A variational approach to cluster approximations in the theory of electronic structure of disordered alloys

Autor: S.V. Beiden, N.E. Zein, German D. Samolyuk

Publikováno v: Journal of Physics: Condensed Matter. 3:9651-9665

Cluster generalization of the CPA method, based on the variational calculation of the alloy thermodynamic potential, is considered. Various possible choices of the variational parameters are discussed. One of them leads to an approximation that is an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::97898b9c3b8353458738ed850fedb1ba
https://doi.org/10.1088/0953-8984/3/48/007

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Dependence of configurational interactions on concentration in Ni1-cCucalloys

Autor: German D. Samolyuk, S.V. Beiden, N.E. Zein

Publikováno v: Journal of Physics: Condensed Matter. 3:8597-8603

Pair and triple configurational interactions in Ni1-cCuc alloys are calculated by the LMTO-ASA-CPA method. Strong dependence of these interactions on concentration connected with the crossing of the d-band edge by the Fermi level is revealed. General

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c31a94ade24af0bdade6e18f9ff96e78
https://doi.org/10.1088/0953-8984/3/44/006

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On Significance of the Local Lattice Distortions, Bandstructure Variations and Charge Transfer Effects for Configurational Interactions in Substitutional Alloys

Autor: V.G. Vaks, S.V. Beiden, N.E. Zein, German D. Samolyuk

Publikováno v: NATO ASI Series ISBN: 9781461360551

We review several works illustrating an importance for configurational interactions V in alloys of some effects which are usually not taken into account in conventional calculations of V.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0485b9ea2f52c51b6b401d83a1336886
https://doi.org/10.1007/978-1-4615-2476-2_25

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