{"id":531,"date":"2021-07-21T14:19:29","date_gmt":"2021-07-21T05:19:29","guid":{"rendered":"http:\/\/www.sawada.phys.waseda.ac.jp\/?page_id=531"},"modified":"2022-04-04T13:46:06","modified_gmt":"2022-04-04T04:46:06","slug":"yamakura-takuya","status":"publish","type":"page","link":"https:\/\/www.sawada.phys.waseda.ac.jp\/?page_id=531","title":{"rendered":"\u30e1\u30f3\u30d0\u30fc | \u5c71\u5009 \u62d3\u4e5f"},"content":{"rendered":"<h1>Cellular Automata\u3092\u7528\u3044\u305fReservoir Computing\u306e\u6a21\u7d22 \/ Probing the Possibility of Reservoir Computing using Cellular Automata<\/h1>\n<h2>Cellular Automata(CA)\u3068\u306f \/ What is Cellular Automata?<\/h2>\n<p>\u683c\u5b50\u72b6\u306b\u4e26\u3093\u3060\u30bb\u30eb\u304c\u3042\u308a\uff0c\u305d\u308c\u305e\u308c\u751f\u3068\u6b7b\u306e\u72b6\u614b\u304c\u5b9a\u3081\u3089\u308c\u3066\u3044\u308b\u3002\u5358\u4f4d\u6642\u9593\u9032\u3080\u3068\uff0c\u305d\u308c\u305e\u308c\u306e\u72b6\u614b\u304c\u8fd1\u508d\u306e\u30bb\u30eb\u306e\u72b6\u614b\u306b\u3088\u3063\u3066\u65b0\u305f\u306b\u5b9a\u307e\u308b\u3002\u30e9\u30a4\u30d5\u30b2\u30fc\u30e0\u3082\u3053\u306e\u4e00\u7a2e(\u4e0b\u56f3\u306f\u30e9\u30a4\u30d5\u30b2\u30fc\u30e0\u306e\u9032\u5316\u306e\u4e00\u4f8b\u3001<a href=\"https:\/\/ja.wikipedia.org\/wiki\/%E3%83%A9%E3%82%A4%E3%83%95%E3%82%B2%E3%83%BC%E3%83%A0#\/media\/%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB:Pulsator.gif\">wikipedia<\/a>\u3088\u308a\u5f15\u7528)\u3002\u683c\u5b50\u30ac\u30b9\u30aa\u30fc\u30c8\u30de\u30c8\u30f3\u6cd5\u306a\u3069\u3001CA\u304c\u5b9f\u969b\u306e\u7269\u7406\u7cfb\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u77e5\u3089\u308c\u3066\u3044\u308b\u3002<\/p>\n<p>Cellular Automata has a lattice of cells, each with a defined state of life and death. After a unit of time, each state is newly determined by the states of the neighboring cells.\u00a0 Conway&#8217;s\u00a0game of life is one of these (The figure below is an example of the evolution of Conway&#8217;s game of life, taken from <a href=\"https:\/\/ja.wikipedia.org\/wiki\/%E3%83%A9%E3%82%A4%E3%83%95%E3%82%B2%E3%83%BC%E3%83%A0#\/media\/%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB:Pulsator.gif\">wikipedia<\/a>.) It is known that CA corresponds to real physical systems, such as the lattice gas automaton method.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/7\/74\/Pulsator.gif\" \/><\/p>\n<h2>Reservoir Computing(RC)\u3068\u306f \/ What is Reservoir Computing?<\/h2>\n<p>Neural Network\u306e\u4e00\u7a2e\u3002\u901a\u5e38\u306eRecurrent Neural Network\u3068\u7570\u306a\u308a\u3001\u96a0\u308c\u5c64(Reservoir\u3068\u547c\u3070\u308c\u308b)\u306e\u91cd\u307f\u3092\u30e9\u30f3\u30c0\u30e0\u306b\u56fa\u5b9a\u3057\u3001\u51fa\u529b\u5c64\u306e\u91cd\u307f\u306e\u307f\u3092\u5b66\u7fd2\u3055\u305b\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u8a08\u7b97\u3092\u8efd\u304f\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u30ea\u30b6\u30d0\u30fc\u306b\u306f\u5b9f\u969b\u306e\u7269\u7406\u7cfb\u304c\u7528\u3044\u3089\u308c\u308b\u3053\u3068\u3082\u3042\u308b\u3002<\/p>\n<p>A type of Neural Network. Unlike ordinary Recurrent Neural Networks, the weights of the hidden layer (called Reservoir) are fixed randomly, and only the weights of the output layer are learned, which makes the computation light. Sometimes, real physical systems are used as the reservoir.<\/p>\n<h2>\u7814\u7a76\u5185\u5bb9 \/ Research<\/h2>\n<p>Ozgur Yilmaz (Department of Computer Engineering, Turgut Ozal University)\u304c\u8003\u6848\u3057\u305f\u3001Reservoir Computing\u306eReservoir\u306e\u90e8\u5206\u306bCA\u3092\u7528\u3044\u308b\u65b9\u6cd5\uff08ReCA\u3068\u547c\u3070\u308c\u3066\u3044\u308b)\u3092\u7528\u3044\u3066\u3001\u5b9f\u969b\u306e\u7269\u7406\u7cfb\u3068\u306e\u5bfe\u5fdc\u3092\u898b\u308b\u3002<\/p>\n<p>The method of using CA for the Reservoir part of Reservoir Computing (called ReCA), devised by Ozgur Yilmaz (Department of Computer Engineering, Turgut Ozal University), is used to see the correspondence with actual physical systems.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3>Reference<\/h3>\n<p>https:\/\/arxiv.org\/pdf\/1410.0162.pdf<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cellular Automata\u3092\u7528\u3044\u305fReservoir Computing&#8230; <a class=\"more-link\" href=\"https:\/\/www.sawada.phys.waseda.ac.jp\/?page_id=531\">Continue Reading &rarr;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"_links":{"self":[{"href":"https:\/\/www.sawada.phys.waseda.ac.jp\/index.php?rest_route=\/wp\/v2\/pages\/531"}],"collection":[{"href":"https:\/\/www.sawada.phys.waseda.ac.jp\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.sawada.phys.waseda.ac.jp\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.sawada.phys.waseda.ac.jp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sawada.phys.waseda.ac.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=531"}],"version-history":[{"count":10,"href":"https:\/\/www.sawada.phys.waseda.ac.jp\/index.php?rest_route=\/wp\/v2\/pages\/531\/revisions"}],"predecessor-version":[{"id":738,"href":"https:\/\/www.sawada.phys.waseda.ac.jp\/index.php?rest_route=\/wp\/v2\/pages\/531\/revisions\/738"}],"wp:attachment":[{"href":"https:\/\/www.sawada.phys.waseda.ac.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=531"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}