{"id":1116,"date":"2023-07-27T15:00:08","date_gmt":"2023-07-27T15:00:08","guid":{"rendered":"https:\/\/statorials.org\/id\/kesamaan-kosinus-python\/"},"modified":"2023-07-27T15:00:08","modified_gmt":"2023-07-27T15:00:08","slug":"kesamaan-kosinus-python","status":"publish","type":"post","link":"https:\/\/statorials.org\/id\/kesamaan-kosinus-python\/","title":{"rendered":"Cara menghitung kesamaan kosinus dengan python"},"content":{"rendered":"

<\/p>\n

\n

Kemiripan kosinus<\/strong> adalah ukuran kemiripan antara dua vektor pada ruang hasil kali dalam.<\/span><\/p>\n

Untuk dua vektor, A dan B, persamaan cosinus dihitung sebagai berikut:<\/span><\/p>\n

Kemiripan kosinus<\/strong> = \u03a3A i<\/sub> B i<\/sub> \/ (\u221a\u03a3A i<\/sub> 2<\/sup> \u221a\u03a3B i<\/sub> 2<\/sup> )<\/span><\/p>\n

Tutorial ini menjelaskan cara menghitung kesamaan kosinus antar vektor dengan Python menggunakan fungsi dari perpustakaan NumPy<\/a> .<\/span><\/p>\n

Kesamaan kosinus antara dua vektor dengan Python<\/strong><\/span><\/h3>\n

Kode berikut menunjukkan cara menghitung kesamaan kosinus antara dua array dengan Python:<\/span><\/p>\n

 from<\/span> numpy import<\/span> dot\nfrom<\/span> numpy. linalg<\/span> import<\/span> norm\n\n#define arrays\n<\/span>a = [23, 34, 44, 45, 42, 27, 33, 34]\nb = [17, 18, 22, 26, 26, 29, 31, 30]\n\n#calculate Cosine Similarity\n<\/span>cos_sim = dot<\/span> (a, b)\/( norm<\/span> (a)* norm<\/span> (b))\n\ncos_sim\n\n0.965195008357566\n<\/strong><\/pre>\n
 Kemiripan kosinus kedua tabel tersebut ternyata adalah 0,965195<\/strong> .<\/span><\/p>\n
 Perhatikan bahwa metode ini akan bekerja pada dua array dengan panjang berapa pun:<\/span><\/p>\n
 import numpy<\/span> as np<\/span>\nfrom<\/span> numpy import<\/span> dot\nfrom<\/span> numpy. linalg<\/span> import<\/span> norm\n\n#define arrays\n<\/span>a = np.random.randint(10, size= 100<\/span> )\nb = np.random.randint(10, size= 100<\/span> )\n\n#calculate Cosine Similarity\n<\/span>cos_sim = dot<\/span> (a, b)\/( norm<\/span> (a)* norm<\/span> (b))\n\ncos_sim\n\n0.7340201613960431<\/strong><\/pre>\n
 Namun, ini hanya berfungsi jika kedua array memiliki panjang yang sama:<\/span><\/p>\n
 import numpy<\/span> as np<\/span>\nfrom<\/span> numpy import<\/span> dot\nfrom<\/span> numpy. linalg<\/span> import<\/span> norm\n\n#define arrays\n<\/span>a = np.random.randint(10, size= 90<\/span> ) #length=90<\/span>\nb = np.random.randint(10, size= 100<\/span> ) #length=100<\/span>\n\n#calculate Cosine Similarity\n<\/span>cos_sim = dot<\/span> (a, b)\/( norm<\/span> (a)* norm<\/span> (b))\n\ncos_sim\n\nValueError<\/span> : shapes (90,) and (100,) not aligned: 90 (dim 0) != 100 (dim 0)\n<\/strong><\/pre>\n
 Komentar<\/strong><\/span><\/h3>\n
 1.<\/strong> Ada beberapa cara untuk menghitung kesamaan kosinus menggunakan Python, tetapi seperti yang dijelaskan dalam thread Stack Overflow ini<\/a> , metode yang dijelaskan dalam artikel ini ternyata adalah yang tercepat.<\/span><\/p>\n
 2.<\/strong> Lihathalaman Wikipedia ini<\/a> untuk mempelajari lebih lanjut tentang kesamaan kosinus.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"
Kemiripan kosinus adalah ukuran kemiripan antara dua vektor pada ruang hasil kali dalam. Untuk dua vektor, A dan B, persamaan cosinus dihitung sebagai berikut: Kemiripan kosinus = \u03a3A i B i \/ (\u221a\u03a3A i 2 \u221a\u03a3B i 2 ) Tutorial ini menjelaskan cara menghitung kesamaan kosinus antar vektor dengan Python menggunakan fungsi dari perpustakaan NumPy […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"yoast_head":"\nCara Menghitung Kesamaan Cosinus dengan Python - Statologi<\/title>\n<meta name=\"description\" content=\"Tutorial ini menjelaskan cara menghitung kosinus dengan cara yang sama dengan Python, dengan sebuah contoh.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/statorials.org\/id\/kesamaan-kosinus-python\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cara Menghitung Kesamaan Cosinus dengan Python - Statologi\" \/>\n<meta property=\"og:description\" content=\"Tutorial ini menjelaskan cara menghitung kosinus dengan cara yang sama dengan Python, dengan sebuah contoh.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/id\/kesamaan-kosinus-python\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-27T15:00:08+00:00\" \/>\n<meta name=\"author\" content=\"Benjamin anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Ditulis oleh\" \/>\n\t<meta name=\"twitter:data1\" content=\"Benjamin anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimasi waktu membaca\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 menit\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/id\/kesamaan-kosinus-python\/\",\"url\":\"https:\/\/statorials.org\/id\/kesamaan-kosinus-python\/\",\"name\":\"Cara Menghitung Kesamaan Cosinus dengan Python - Statologi\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/id\/#website\"},\"datePublished\":\"2023-07-27T15:00:08+00:00\",\"dateModified\":\"2023-07-27T15:00:08+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\"},\"description\":\"Tutorial ini menjelaskan cara menghitung kosinus dengan cara yang sama dengan Python, dengan sebuah contoh.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/id\/kesamaan-kosinus-python\/#breadcrumb\"},\"inLanguage\":\"id\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/id\/kesamaan-kosinus-python\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/id\/kesamaan-kosinus-python\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/statorials.org\/id\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cara menghitung kesamaan kosinus dengan python\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/id\/#website\",\"url\":\"https:\/\/statorials.org\/id\/\",\"name\":\"Statorials\",\"description\":\"Panduan anda untuk kompetensi statistik!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/id\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"id\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/3d17a1160dd2d052b7c78e502cb9ec81\",\"name\":\"Benjamin anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"id\",\"@id\":\"https:\/\/statorials.org\/id\/#\/schema\/person\/image\/\",\"url\":\"http:\/\/statorials.org\/id\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"http:\/\/statorials.org\/id\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"caption\":\"Benjamin anderson\"},\"description\":\"Halo, saya Benjamin, pensiunan profesor statistika yang menjadi guru Statorial yang berdedikasi. 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