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排序方式: 共有420条查询结果,搜索用时 46 毫秒
41.
Adaptive Clipping for Neural Associative Memories 总被引:1,自引:0,他引:1
CHANG Shengjiang SHEN JinyuanSONG Zhuang ZHANG Yanxin 《Chinese Journal of Lasers》1997,6(4):372-377
AdaptiveClippingforNeuralAsociativeMemoriesCHANGShengjiangSHENJinyuanSONGZhuangZHANGYanxin(InstituteofModernOptics,NankaiUni... 相似文献
42.
基于基因算法的模糊联想记忆设计方法 总被引:3,自引:2,他引:1
本文提出了一种用基因算法来进行模糊联想记忆系统设计的方法-基因FAM法。同自适应模糊联想记忆和神经网络设计方法相比,该方法不要求有训练样本;而且可以设计出的FAM系统最后,举例说明了该方法的应用。 相似文献
43.
综合联想记忆神经网络的外积取等准则 总被引:8,自引:1,他引:7
本文提出了一个新的联想记忆设计准则,即外积取等准则,它具有外积和准则的所有优点。由外积取等准则设计出的联想记忆网络能够存储任意给定的训练模式,即对于训练模式的数目和它们之间相关性的强弱没有限制。外积取等准则可用来定量地评价记忆模式向量各分量对于记忆模式分类或识别的重要性。由外积取等准则设计出的网络的连接权值只取1、0或-1,因而网络易于光学实现。计算机实验结果充分说明了外积取等准则的有效性。 相似文献
44.
基于耦合的混沌神经网络建模方法 总被引:3,自引:0,他引:3
混沌状态下神经网络行为的研究是神经网络理论的一个新内容,由于它可能揭示脑活动的深层机制而广受重视,但是混沌网络信息处理能力进行大量和深入研究却遇到许多障碍,其问题之一是难以为网络系统选择适当的非线性参数。本文提出一种建立混沌神经网络模型的简单耦合方法,解决了选择参数的困难,计算机模拟结果表明,用该模型研究混沌状态下网络动态行为是有效的。 相似文献
45.
J. W. Nielsen S. L. Blank D. H. Smith G. P. Vella-Coleiro F. B. Hagedorn R. L. Barns W. A. Biolsi 《Journal of Electronic Materials》1974,3(3):693-707
The choice of magnetic garnet compositions for bubble memories is always a compromise dictated by the material requirements
generated by the specifications on the memories. The three compositions reported, Y2.62Smo.38Fe3.85Ga1.15O12, Gd2.lLuO.9Fe4.4Al0.6O12, and Yl.92Sm0.1Ca0.98Fe4.02Ge0.98O12, represent three examples of such a compromise. The first composition is excellent for use in circuits operating at 100 KHz over a temperature range of -20° to 80°C. The second has a mobility up to 5000 cm/sec/0e and is capable of very high speed
operation at the sacrifice of stability toward temperature. The third exhibits excellent stability toward temperature and
has operated at 1 MHz but is compositionally more complex.
Melt compositions for film growth and a summary of magnetic properties are presented for the three compositions. Factors to
be weighed in composition selection for bubble domain memories are discussed. 相似文献
46.
Spiro?KarigiannisEmail author Maung?Min-Oo 《Annals of Global Analysis and Geometry》2005,28(4):371-394
This paper is a continuation of Math. Res. Lett. 12 (2005), 493–512. We first construct special Lagrangian submanifolds of the Ricci-flat Stenzel metric (of holonomy SU(n)) on the cotangent bundle of Sn by looking at the conormal bundle of appropriate submanifolds of Sn. We find that the condition for the conormal bundle to be special Lagrangian is the same as that discovered by Harvey–Lawson
for submanifolds in Rn in their pioneering paper, Acta Math. 148 (1982), 47–157. We also construct calibrated submanifolds in complete metrics with special holonomy G2 and Spin(7) discovered by Bryant and Salamon (Duke Math. J. 58 (1989), 829–850) on the total spaces of appropriate bundles over self-dual Einstein four manifolds. The submanifolds are
constructed as certain subbundles over immersed surfaces. We show that this construction requires the surface to be minimal
in the associative and Cayley cases, and to be (properly oriented) real isotropic in the coassociative case. We also make
some remarks about using these constructions as a possible local model for the intersection of compact calibrated submanifolds
in a compact manifold with special holonomy.
Mathematics Subject Classification (2000): 53-XX, 58-XX. 相似文献
47.
48.
Sebastián Márquez 《代数通讯》2018,46(9):3810-3832
We introduce a non-symmetric operad 𝒩, whose dimension in degree n is given by the Catalan number cn?1. It arises naturally in the study of coalgebra structures defined on compatible associative algebras. We prove that any free compatible associative algebra admits a compatible infinitesimal bialgebra structure, whose subspace of primitive elements is a 𝒩-algebra. The data (As,As2,𝒩) is a good triple of operads, in J.-L. Loday’s sense. Our construction induces another triple of operads (As,As2,As), where As2 is the operad of matching dialgebras. Motivated by A. Goncharov’s Hopf algebra of paths P(S), we introduce the notion of bi-matching dialgebras and show that the Hopf algebra P(S) is a bi-matching dialgebras. 相似文献
49.
Abstract Eisenbud et al. proved a number of results regarding Gröbner bases and initial ideals of those ideals J in the free associative algebra K ?X 1,…, X n ? which contain the commutator ideal. We prove similar results for ideals which contains the anti-commutator ideal (the defining ideal of the exterior algebra). We define one weak notion of generic initial ideals in K ?X 1,…, X n ?, and show that generic initial ideals of ideals containing the anti-commutator ideal, or the commutator ideal, are finitely generated. 相似文献
50.
Maria V. Milentyeva 《代数通讯》2013,41(4):1141-1154
We obtain the functions that bound the dimensions of finite dimensional nilpotent associative or Lie algebras of class 2 over an algebraically closed field in terms of the dimensions of their commutative subalgebras. As a result, we also compute a similar function for complex nilpotent Lie groups of class 2. 相似文献