{"id":19740,"date":"2022-09-07T12:25:00","date_gmt":"2022-09-07T15:25:00","guid":{"rendered":"https:\/\/mindthegraph.com\/blog\/?p=16586"},"modified":"2022-10-18T08:39:17","modified_gmt":"2022-10-18T11:39:17","slug":"sigmoid-pattern","status":"publish","type":"post","link":"https:\/\/mindthegraph.com\/blog\/hu\/sigmoid-mintazat\/","title":{"rendered":"Mi az a szigmoid minta \u00e9s a g\u00f6rbe 3 szakasza?"},"content":{"rendered":"<p>L\u00e9nyeges, hogy meg\u00e9rts\u00fck a szigmoid mint\u00e1zat vagy f\u00fcggv\u00e9ny jelent\u0151s\u00e9g\u00e9t, f\u00fcggetlen\u00fcl att\u00f3l, hogy saj\u00e1t neur\u00e1lis h\u00e1l\u00f3zatot \u00e9p\u00edt\u00fcnk, vagy \u00e9leszt\u0151n\u00f6veked\u00e9si modellt konstru\u00e1lunk. Az \u00f6sszetett probl\u00e9m\u00e1k tanul\u00e1s\u00e1t a szigmoid f\u00fcggv\u00e9ny \u00e9s a n\u00f6veked\u00e9si g\u00f6rb\u00e9k magyar\u00e1zz\u00e1k.&nbsp;<\/p>\n\n\n\n<p>A n\u00f6veked\u00e9s m\u00e9r\u00e9sekor a sz\u00e1raz t\u00f6meg k\u00f6vetkezetesebb mutat\u00f3ja a n\u00f6veked\u00e9snek. A n\u00f6veked\u00e9s m\u00e9r\u00e9se \u00e1ltal\u00e1ban azon alapul, hogy mennyit gyarapodunk magass\u00e1gban vagy s\u00falyban, mivel nem lehet egyszer\u0171en elp\u00e1rologtatni egy szervezetet.&nbsp;<\/p>\n\n\n\n<p>Ennek eredm\u00e9nyek\u00e9ppen a szigmoid f\u00fcggv\u00e9nyek lehet\u0151v\u00e9 teszik a numerikus param\u00e9terbecsl\u00e9st, mivel differenci\u00e1lhat\u00f3k. N\u00e9zz\u00fck meg ebben a blogban, hogy mi is az a szigmoid minta vagy f\u00fcggv\u00e9ny.&nbsp;<\/p>\n\n\n\n<h2><strong><strong><strong><strong><strong>Mi az a szigmoid minta?<\/strong><\/strong><\/strong><\/strong><\/strong><\/h2>\n\n\n\n<p>Fontos megjegyezni, hogy sok szervezet \u00e9let\u00e9ben t\u00f6bb, egym\u00e1st\u00f3l elk\u00fcl\u00f6n\u00fcl\u0151 n\u00f6veked\u00e9si f\u00e1zison megy kereszt\u00fcl. Az ilyen mint\u00e1k sz\u00e1mszer\u0171s\u00edt\u00e9s\u00e9re egy m\u00e9rhet\u0151 m\u00e9ret- vagy s\u00falyv\u00e1ltoz\u00f3t lehet haszn\u00e1lni az id\u0151 m\u00fal\u00e1s\u00e1val.&nbsp;<\/p>\n\n\n\n<p>A szigmoid mint\u00e1zat \u00e1ltal\u00e1ban olyan k\u00f6r\u00fclm\u00e9nyek k\u00f6z\u00f6tt figyelhet\u0151 meg, amelyek \u00e1ltal\u00e1ban konzisztensek, \u00e9s ahol egy v\u00e1ltoz\u00f3 egym\u00e1s ut\u00e1n exponenci\u00e1lisan, majd line\u00e1risan, v\u00e9g\u00fcl aszimptotikusan n\u00f6vekszik. Egy S alak\u00fa g\u00f6rbe, vagy szigmoid f\u00fcggv\u00e9ny l\u00e1that\u00f3, ha \u00e1br\u00e1zoljuk.&nbsp;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><a href=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2022\/08\/population-growth-curve_med.jpeg\"><img decoding=\"async\" src=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2022\/08\/population-growth-curve_med.jpeg\" alt=\"\" class=\"wp-image-16591\"\/><\/a><\/figure><\/div>\n\n\n<p>A norm\u00e1lis eloszl\u00e1s sz\u00e1mos m\u00e1s kumulat\u00edv eloszl\u00e1sf\u00fcggv\u00e9nnyel egy\u00fctt szerepel a szigmoid g\u00f6rb\u00e9kben. A neur\u00e1lis h\u00e1l\u00f3zat is ezeket haszn\u00e1lja aktiv\u00e1l\u00f3 f\u00fcggv\u00e9nyk\u00e9nt.<\/p>\n\n\n\n<h2><strong><strong>Mi a jelent\u0151s\u00e9ge a szigmoid mint\u00e1nak?<\/strong><\/strong><\/h2>\n\n\n\n<p>A szigmoid f\u00fcggv\u00e9ny monotonit\u00e1sa, folytonoss\u00e1ga \u00e9s differenci\u00e1lhat\u00f3s\u00e1ga, valamint deriv\u00e1ltja miatt a k\u00fcl\u00f6nb\u00f6z\u0151 param\u00e9terek tanul\u00e1s\u00e1ra vonatkoz\u00f3 egyenletek megfogalmaz\u00e1sa \u00e9s friss\u00edt\u00e9se egyszer\u0171.&nbsp;<\/p>\n\n\n\n<p>Egy lehets\u00e9ges n\u00f6veked\u00e9si p\u00e1ly\u00e1t egy s-g\u00f6rbe \u00e1br\u00e1zol, amikor a popul\u00e1ci\u00f3 m\u00e9ret\u00e9t az id\u0151 f\u00fcggv\u00e9ny\u00e9ben \u00e1br\u00e1zoljuk. Egy organizmus \u00e9letciklus\u00e1nak meg\u00e9rt\u00e9s\u00e9hez figyelembe kell venn\u00fcnk ezt a szempontot.&nbsp;<\/p>\n\n\n\n<p>Ezen k\u00edv\u00fcl a szigmoid f\u00fcggv\u00e9nyek alkalmazhat\u00f3k a neur\u00e1lis h\u00e1l\u00f3zatokban az \u00f6sszetett d\u00f6nt\u00e9si f\u00fcggv\u00e9nyek modellez\u00e9s\u00e9re, mivel a nemline\u00e1ris f\u00fcggv\u00e9nyek nemline\u00e1ris hat\u00e1r\u00e9rt\u00e9keket eredm\u00e9nyeznek.<\/p>\n\n\n\n<h2><strong><strong>A szigmoid mint\u00e1zat h\u00e1rom szakaszb\u00f3l \u00e1ll<\/strong><\/strong><\/h2>\n\n\n\n<p>A g\u00f6rb\u00e9nek h\u00e1rom f\u0151 szakasza van: egy gyorsul\u00f3 szakasz\/id\u0151szak, egy \u00e1tmeneti szakasz\/id\u0151szak \u00e9s egy fenns\u00edk szakasz\/id\u0151szak.<\/p>\n\n\n\n<h3><strong><strong>Exponenci\u00e1lis szakasz<\/strong><\/strong><\/h3>\n\n\n\n<p>A korai szakaszban a popul\u00e1ci\u00f3 n\u00f6veked\u00e9se viszonylag lass\u00fa lenne (k\u00e9sleltet\u00e9si id\u0151szak), mivel kev\u00e9s szaporod\u00f3k\u00e9pes egyed lenne sz\u00e9les k\u00f6rben sz\u00e9tsz\u00f3r\u00f3dva.&nbsp;<\/p>\n\n\n\n<p>Mivel a sz\u00fclet\u00e9ssz\u00e1m meghaladja a haland\u00f3s\u00e1got, a n\u00e9pess\u00e9g m\u00e9rete folyamatosan n\u00f6vekszik. Az energia b\u0151s\u00e9ges, az \u00e9ghajlatv\u00e1ltoz\u00e1ssal szembeni ellen\u00e1ll\u00e1s pedig minim\u00e1lis, ami alacsony hal\u00e1loz\u00e1si ar\u00e1nyt eredm\u00e9nyez.<\/p>\n\n\n\n<h3><strong><strong>\u00c1tmeneti szakasz<\/strong><\/strong><\/h3>\n\n\n\n<p>A n\u00e9pess\u00e9gn\u00f6veked\u00e9s miatt az er\u0151forr\u00e1sok egyre sz\u0171k\u00f6sebb\u00e9 v\u00e1lnak, ami a t\u00fal\u00e9l\u00e9s\u00e9rt folytatott k\u00fczdelmet eredm\u00e9nyezi. A cs\u00f6kken\u0151 sz\u00fclet\u00e9si ar\u00e1nyok \u00e9s a n\u00f6vekv\u0151 hal\u00e1loz\u00e1si ar\u00e1nyok k\u00f6vetkezt\u00e9ben lelassul a n\u00e9pess\u00e9gn\u00f6veked\u00e9s.<\/p>\n\n\n\n<h3><strong><strong>Plateau szakasz<\/strong><\/strong><\/h3>\n\n\n\n<p>V\u00e9g\u00fcl a n\u00f6vekv\u0151 hal\u00e1loz\u00e1si r\u00e1ta el\u00e9ri az \u00faj organizmusok termel\u0151d\u00e9s\u00e9t, \u00edgy a n\u00e9pess\u00e9gn\u00f6veked\u00e9s stagn\u00e1lni fog.&nbsp;<\/p>\n\n\n\n<p>A korl\u00e1toz\u00f3 er\u0151k eredm\u00e9nyek\u00e9nt a n\u00e9pess\u00e9g meghaladta a k\u00f6rnyezet azon k\u00e9pess\u00e9g\u00e9t, hogy megbirk\u00f3zzon a n\u00f6veked\u00e9ssel. Val\u00f3sz\u00edn\u0171, hogy a popul\u00e1ci\u00f3 m\u00e9rete ezen a ponton nem lesz \u00e1lland\u00f3, hanem az egyenletes l\u00e9tsz\u00e1m fenntart\u00e1s\u00e1hoz sz\u00fcks\u00e9ges eltart\u00f3k\u00e9pess\u00e9g k\u00f6r\u00fcl fog ingadozni.<\/p>\n\n\n\n<h2><strong><strong><strong><strong>Tud\u00f3sok \u00e1ltal l\u00e9trehozott exkluz\u00edv tudom\u00e1nyos tartalom&nbsp;<\/strong><\/strong><\/strong><\/strong><\/h2>\n\n\n\n<p>Hogy halad a dolgozatod? Kerest\u00e9l a kutat\u00e1sodnak megfelel\u0151 illusztr\u00e1ci\u00f3kat? Az Mind the Graph seg\u00edts\u00e9g\u00e9vel t\u00e1mogatjuk \u00d6nt.&nbsp;<\/p>\n\n\n\n<p>A t\u00f6bb ezer illusztr\u00e1ci\u00f3val teli k\u00f6nyvt\u00e1rb\u00f3l sz\u00e1mos kateg\u00f3ri\u00e1b\u00f3l v\u00e1laszthat. Saj\u00e1t plak\u00e1tk\u00e9sz\u00edt\u0151nkkel pillanatok alatt fantasztikus plak\u00e1tot k\u00e9sz\u00edthet.&nbsp;<\/p>\n\n\n\n<p>Emellett szak\u00e9rt\u0151ink az illusztr\u00e1ci\u00f3kat az \u00d6n ig\u00e9nyei szerint is testre szabhatj\u00e1k.<\/p>\n\n\n\n<div class=\"is-layout-flex wp-block-buttons\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-background\" href=\"https:\/\/mindthegraph.com\/science_figures\" style=\"border-radius:50px;background-color:#dc1866\" target=\"_blank\" rel=\"noreferrer noopener\">Hat\u00e9kony tudom\u00e1nyos \u00e1br\u00e1k l\u00e9trehoz\u00e1sa percek alatt<\/a><\/div>\n<\/div>\n\n\n\n<div style=\"height:11px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Neuron\u00e1lis szinapszisok Infografika\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/2DwIBRzuH5A?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>N\u00e9zz\u00fck meg, hogy mi a szigmamint\u00e1zat vagy -funkci\u00f3 \u00e9s annak k\u00fcl\u00f6nb\u00f6z\u0151 szakaszai ebben a cikkben. <\/p>","protected":false},"author":27,"featured_media":19783,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[38],"tags":[554,775,777,909,962],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is a Sigmoid Pattern and The 3 Stages Of The Curve?<\/title>\n<meta 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She is currently pursuing a master's degree in Bioentrepreneurship from Karolinska Institute. She is interested in health and diseases, global health, socioeconomic development, and women's health. As a science enthusiast, she is keen in learning more about the scientific world and wants to play a part in making a difference.","sameAs":["http:\/\/linkedin.com\/in\/aayushizaveri"],"url":"https:\/\/mindthegraph.com\/blog\/hu\/author\/aayuyshi\/"}]}},"_links":{"self":[{"href":"https:\/\/mindthegraph.com\/blog\/hu\/wp-json\/wp\/v2\/posts\/19740"}],"collection":[{"href":"https:\/\/mindthegraph.com\/blog\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mindthegraph.com\/blog\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/hu\/wp-json\/wp\/v2\/users\/27"}],"replies":[{"embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/hu\/wp-json\/wp\/v2\/comments?post=19740"}],"version-history":[{"count":1,"href":"https:\/\/mindthegraph.com\/blog\/hu\/wp-json\/wp\/v2\/posts\/19740\/revisions"}],"predecessor-version":[{"id":19784,"href":"https:\/\/mindthegraph.com\/blog\/hu\/wp-json\/wp\/v2\/posts\/19740\/revisions\/19784"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/hu\/wp-json\/wp\/v2\/media\/19783"}],"wp:attachment":[{"href":"https:\/\/mindthegraph.com\/blog\/hu\/wp-json\/wp\/v2\/media?parent=19740"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/hu\/wp-json\/wp\/v2\/categories?post=19740"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/hu\/wp-json\/wp\/v2\/tags?post=19740"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}