論文

1981年

A stochastic approximation with a sequence ofdependent random variables

Bulletin of Mathematical Statistics
  • Watanabe Masafumi

19
3-4
開始ページ
25
終了ページ
42
記述言語
英語
掲載種別
研究論文(学術雑誌)
出版者・発行元
Research Association of Statistical Sciences

Let $ {Yn} $ be a sequence of dependent random variables and $ {Phi_n (cdot, cdot) } $ be a sequence of Borel functions. Let $ \theta_n $ be a solution of the equation $ M_n(x) = 0 $ for each $ n geqq 1 $, where $ M_n(x) = mathrm{E} Phi_n(x, Y_n) $. A Robbins-Monro type stochastic approximation procedure $ X_{n+1} = X_n - a_n Phi_n(X_n, Y_n) $ is considered for estimating $ \theta_n $ for $ n $ sufficiently large. Under some assumptions about $ {a_n},{\theta_n},{Y_n} $ and $ {Phi_n(cdot, cdot)} $ which may not include the fundamental condition $ mathrm{E}[Phi_n(X_n, Y_n) mid X_1, cdots, X_n] = M_n(X_n) $ a.s., the a.s. convergence and in mean-square convergence of $ mid X_n - \theta_n mid $ to zero are studied.

リンク情報
CiNii Articles
http://ci.nii.ac.jp/naid/120001036968
CiNii Books
http://ci.nii.ac.jp/ncid/AA00105332
URL
http://hdl.handle.net/2324/13146
ID情報
  • ISSN : 0007-4993
  • CiNii Articles ID : 120001036968
  • CiNii Books ID : AA00105332

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