کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7379402 | 1480140 | 2015 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dually flat geometries of the deformed exponential family
ترجمه فارسی عنوان
هندسه دوتایی مسطح از خانواده نمایش داده شده تغییر شکل
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موضوعات مرتبط
مهندسی و علوم پایه
ریاضیات
فیزیک ریاضی
چکیده انگلیسی
An exponential family is dually flat with respect to Amari's ±1 connection. A deformed exponential family which is a generalization of the exponential family has two dually flat structures called the U-geometry and the Ï-geometry. In the case of an exponential family invariant α-geometry gives the dually flat structure. But for a deformed exponential family, one need to consider generalized geometric structures other than the invariant α-geometry. The (F,G)-geometry on a statistical manifold is such a generalized geometry defined using a general embedding function F and a positive smooth function G. In this paper, we present the role of the (F,G)-geometry in the study of a deformed exponential family. We show that the dually flat U-geometry is the (F,G)-geometry for suitable choices of F and G. Further we show that the dully flat Ï-geometry is the conformal flattening of the (F,G)-geometry for suitable F and G.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 433, 1 September 2015, Pages 136-147
Journal: Physica A: Statistical Mechanics and its Applications - Volume 433, 1 September 2015, Pages 136-147
نویسندگان
K.V. Harsha, K.S. Subrahamanian Moosath,