{"id":750,"date":"2026-05-31T10:17:28","date_gmt":"2026-05-31T08:17:28","guid":{"rendered":"https:\/\/kiube.se\/idea\/?p=750"},"modified":"2026-05-31T10:35:00","modified_gmt":"2026-05-31T08:35:00","slug":"forsta-uppgiften","status":"publish","type":"post","link":"https:\/\/kiube.se\/idea\/?p=750","title":{"rendered":"F\u00f6rsta Uppgiften &#8211; Steg 1"},"content":{"rendered":"<p data-start=\"0\" data-end=\"183\">Det b\u00e4sta s\u00e4ttet att f\u00f6rst\u00e5 neurala n\u00e4tverk \u00e4r faktiskt att bygga ett sj\u00e4lv fr\u00e5n grunden utan n\u00e5gra AI-bibliotek. D\u00e5 ser man exakt hur matematik, l\u00e4rande och viktjusteringar fungerar.<\/p>\n<p data-start=\"185\" data-end=\"234\">Jag skulle rekommendera att bygga det i tre steg:<\/p>\n<h2 data-section-id=\"163qg2s\" data-start=\"236\" data-end=\"263\">Steg 1 \u2013 Ett enda neuron<\/h2>\n<p data-start=\"265\" data-end=\"305\">B\u00f6rja med ett neuron som tar tv\u00e5 indata.<\/p>\n<h3 data-section-id=\"kwcqbp\" data-start=\"307\" data-end=\"317\">Modell<\/h3>\n<pre><code class=\"language-bash\" data-line=\"\">Input1 ----\\\n            &gt;----[Neuron]---- Output\nInput2 ----\/<\/code><\/pre>\n<p><strong>Matematiskt:<\/strong><\/p>\n<pre><code class=\"language-bash\" data-line=\"\">Output = sigmoid(w1*x1 + w2*x2 + bias)<\/code><\/pre>\n<p data-start=\"453\" data-end=\"457\">D\u00e4r:<\/p>\n<ul data-start=\"459\" data-end=\"532\">\n<li data-section-id=\"envosb\" data-start=\"459\" data-end=\"470\">x = input<\/li>\n<li data-section-id=\"1s0iede\" data-start=\"471\" data-end=\"481\">w = vikt<\/li>\n<li data-section-id=\"3vkp43\" data-start=\"482\" data-end=\"500\">bias = justering<\/li>\n<li data-section-id=\"rue1t4\" data-start=\"501\" data-end=\"532\">sigmoid = aktiveringsfunktion<\/li>\n<\/ul>\n<p data-start=\"534\" data-end=\"542\">Exempel:<\/p>\n<pre>&lt;\/&gt; Python\r\n\r\n<code class=\"language-python\" data-line=\"\">import math\n\nx1 = 0.5\nx2 = 0.8\n\nw1 = 0.2\nw2 = 0.4\nbias = 0.1\n\nz = x1*w1 + x2*w2 + bias\n\noutput = 1\/(1+math.exp(-z))\n\nprint(output)<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Hur bygger man ett eget program som simulerar ett enkelt neuralt n\u00e4tverk. F\u00f6r att l\u00e4ra och f\u00f6rst\u00e5 hur det fungerar. B\u00e5de programatiskt och f\u00f6r att visualisera<\/p>\n","protected":false},"author":118,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[17],"tags":[],"class_list":["post-750","post","type-post","status-publish","format-standard","hentry","category-metod"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>F\u00f6rsta Uppgiften - Steg 1 - Experiment Management<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/kiube.se\/idea\/?p=750\" \/>\n<meta property=\"og:locale\" content=\"sv_SE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"F\u00f6rsta Uppgiften - Steg 1 - Experiment Management\" \/>\n<meta property=\"og:description\" content=\"Hur bygger man ett eget program som simulerar ett enkelt neuralt n\u00e4tverk. 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