Bayes ağı

Basit bir Bayes ağı. Yağmur yağma durumu fıskiyenin çalışma olasılığını etkiler. Çimlerin ıslak olma olasılığı ise hem fıskiyeye hem de yağmura bağlıdır.
Yapay zekâ
dizisinin bir parçası
Gelişim süreci
Yaklaşımlar
Felsefe
Tarihçe
Teknoloji
Sözlük

Bir Bayes ağı, Bayes modeli ya da olasılıksal yönlü dönüşsüz çizge modeli bir olasılıksal çizge modelidir (bir çeşit istatistiksel model) ve birbirleriyle koşulsal bağımlılıklara sahip bir rassal değişkenler kümesini yönlü dönüşsüz çizge(YDÇ) şeklinde ifade eder.[1] Bayes ağları; gündelik hayatta meydana gelen bir olayı anlatmak ve o olayın gerçekleşmesine sebebiyet verebileceği bilinen birkaç olası nedenden herhangi birinin katkıda bulunan faktör olma olasılığını tahmin etmek için kullanılan ideal bir modelleme türüdür. Örneğin, bir Bayes ağı kullanılarak hastalıklar ve semptomları arasındaki olasılıksal koşul ilişkileri modellenebilir. Bu model kullanılarak, bir kişide görülen semptomlar verildiğinde bu kişinin bazı hastalıklara sahip olma olasılıkları hesaplanabilir. Buna benzer olarak neden-sonuç ilişkisi olan birçok olayın olasılığı bu modelleme ile görselleştirilebilir.

Bayes ağları, her düğümü bir rassal değişkeni ifade eden YDÇ'lerdir.[2] Gözlemlenebilir nicelikler, gizli değişkenler, bilinmeyen parametreler ya da hipotezler birer Bayes rassal değişkeni olabilirler. Birbirine herhangi bir şekilde bağlı olmayan düğümler birbirlerinden koşulsal bağımsızdırlar. Her düğüm, girdi olarak ebeveyn düğümlerinin değerlerini alan ve çıktı olarak o düğümün ifade ettiği değişkenin alabileceği değerlerin olasılıklarını (duruma göre olasılık dağılımını) veren bir olasılık fonksiyonu ile ilişkilendirilmiştir.[1] Örneğin, eğer ebeveyn düğüm Bool değişkenini ifade ediyorsa olasılık fonksiyonu hücreli bir tablo ile gösterilebilir; ebeveyn değişkenlerinin alabileceği doğru ya da yanlış değerlerinin her biri için bir hücre.

Benzer fikirler yönsüz ve duruma göre dönüşlü çizgeler üzerinde uygulanabilir; böyleleri Markov ağları olarak adlandırılır.

Bayes ağları üzerinde çıkarsama ve öğrenme yapan verimli algoritmalar vardır. Bir değişkenler dizisini (örn. konuşma sinyali, protein dizisi) modelleyen Bayes ağlarına dinamik Bayes ağları denir.

Ayrıca bakınız

Kaynakça

  1. ^ a b Stuart Russell; Peter Norvig (1995). Artificial Intelligence A Modern Approach Third Edition. Upper Saddle River, New Jersey: PRENTICE HALL. ss. 511. ISBN 978-0-13-604259-4. Erişim tarihi: 6 Şubat 2018. 
  2. ^ Şadi Evren Şeker (21 Aralık 2008). "Bayes Ağları (Bayesian Network)". bilgisayarkavramlari. 6 Ağustos 2017 tarihinde kaynağından arşivlendi. Erişim tarihi: 6 Şubat 2018. 

Read other articles:

Wanua

Artikel ini tidak memiliki referensi atau sumber tepercaya sehingga isinya tidak bisa dipastikan. Tolong bantu perbaiki artikel ini dengan menambahkan referensi yang layak. Tulisan tanpa sumber dapat dipertanyakan dan dihapus sewaktu-waktu.Cari sumber: Wanua – berita · surat kabar · buku · cendekiawan · JSTOR Dalam bahasa Minahasa Kawanua sering di artikan sebagai penduduk negeri atau wanua-wanua yang bersatu atau Mina-Esa (Orang Minahasa). Kata Kawanu...

 

Élections en Inde

Les élections en Inde sont organisées par la Commission électorale indienne. Elles concernent un corps électoral de 814 millions de personnes, le plus important au monde. En raison du nombre important d'électeurs, elles se déroulent en plusieurs phases de vote (il y avait neuf phases lors des élections législatives indiennes de 2014). Depuis plusieurs années, les électeurs votent à l'aide de machines électroniques. Système électoral Les Indiens sont fiers de leur démocrati...

 

تطواف

التطواف أو الموكب (باللاتينية: processio) هي هيئة منظمة من الناس يمشون بطريقة رسمية أو احتفالية. في المسيحية موكب ديني كاثوليكي في مدينة سالتا. تشكل المواكب الدينية ركن هام في العبادة المسيحية، وأبرز هذه الأمثلة مواكب أسبوع الآلام. أخذت المواكب الدينية في الانتشار في الثقافة ال...

Higurashi no Naku Koro ni (song)

2006 single by Eiko ShimamiyaHigurashi no Naku Koro NiSingle by Eiko Shimamiyafrom the album O (A-side)Hikari Nadeshiko (B-side) B-sideAll AloneReleasedMay 24, 2006GenreTranceElectropopJ-popIndustrialLength20:56LabelFrontier WorksSongwriter(s)Tomoyuki Nakazawa, Kazuya Takase, Eiko ShimamiyaProducer(s)I've SoundEiko Shimamiya singles chronology Higurashi no Naku Koro Ni (2006) “Naraku no Hana” (2007) “Higurashi no Naku Koro Ni” (ひぐらしのなく頃に, When the cicadas cry) is the...

 

Le Rêve (Picasso)

1932 oil painting by Pablo Picasso Le RêveEnglish: The DreamArtistPablo PicassoYear1932MediumOil on canvasMovementCubismDimensions130 cm × 97 cm (51 in × 38 in)LocationPrivate collection of Steven A. Cohen Le Rêve (English: The Dream) is a 1932 oil on canvas painting (130 × 97 cm) by Pablo Picasso, then 50 years old, portraying his 22-year-old mistress Marie-Thérèse Walter. It is said to have been painted in one afternoon, on 24 January 19...

 

Lutherville, Maryland

Census-designated place in Maryland, United StatesLutherville, MarylandCensus-designated placeLutherville light rail station platform on Ridgely Road, in Lutherville, MarylandNickname: Old OriginalLocation of Lutherville, MarylandCoordinates: 39°25′26″N 76°37′3″W / 39.42389°N 76.61750°W / 39.42389; -76.61750Country United StatesState MarylandCounty BaltimoreArea[1] • Total2.11 sq mi (5.47 km2) • ...

Basilio Augustín

Dalam artikel ini, pertama atau paternal nama keluarganya adalah Augustín dan nama keluarga maternal atau keduanya adalah Dávila. The Most ExcellentBasilio Augustín Gubernur Jenderal Filipina ke-113Masa jabatan11 April – 24 Juli 1898PendahuluFernando Primo de RiveraPenggantiFermín Jáudenes Informasi pribadiLahir(1840-02-12)12 Februari 1840Cádiz, SpanyolMeninggal7 Agustus 1910(1910-08-07) (umur 70)Vitoria-Gasteiz, Álava, SpanyolSunting kotak info • L ...

 

土库曼斯坦总统

土库曼斯坦总统土库曼斯坦国徽土库曼斯坦总统旗現任谢尔达尔·别尔德穆哈梅多夫自2022年3月19日官邸阿什哈巴德总统府（Oguzkhan Presidential Palace）機關所在地阿什哈巴德任命者直接选举任期7年，可连选连任首任萨帕尔穆拉特·尼亚佐夫设立1991年10月27日 土库曼斯坦土库曼斯坦政府与政治 国家政府 土库曼斯坦宪法 国旗 国徽 国歌 立法機關（英语：National Council of Turkmenistan） ...

 

Oceanus (Titan orbiter)

This article is about the Titan orbiter. For the Uranus orbiter, see Oceanus (Uranus orbiter). OceanusOverviewMission typeTitan orbiterOperatorNASASpacecraft propertiesManufacturerLockheed MartinSolar array manufacturerOrbital ATKMission managementNASA / JPLStart of missionExpected flight time10 yearsScience operations4 yearsInstrumentsMass SpectrometerInfrared CameraRadar AltimeterRadio ScienceNew Frontiers Program Oceanus is a NASA/JPL orbiter mission concept proposed in 2017 for the New Fr...

نوكيا 6131

نوكيا 6131معلومات عامةالنوع هاتف محمول الصانع نوكيا تعديل - تعديل مصدري - تعديل ويكي بيانات نوكيا 6131 هو أحد أجهزة نوكيا، شركة الهواتف والتقنية النقالة.[1][2] يأتي هذا الجهاز مع شاشة نوعها 320 * 240 24-بت (16,777,216) لون. تم إصدار هذا الجهاز في 2006. تقنيته/تردده هي النظام العالمي للإ...

 

2010–11 Simurq PFC season

This article relies excessively on references to primary sources. Please improve this article by adding secondary or tertiary sources. Find sources: 2010–11 Simurq PFC season – news · newspapers · books · scholar · JSTOR (January 2014) (Learn how and when to remove this message) Simurq 2010–11 football seasonSimurq2010–11 seasonChairmanZaur MammadovManagerGjoko HadžievskiStadiumZaqatala City StadiumPremier League11thAzerbaijan CupLast 16 vs Absh...

 

Isa Kremer

Artikel ini sebatang kara, artinya tidak ada artikel lain yang memiliki pranala balik ke halaman ini.Bantulah menambah pranala ke artikel ini dari artikel yang berhubungan atau coba peralatan pencari pranala.Tag ini diberikan pada November 2022. Isa Kremer Isa Kremer muda Isabelle Yakovlevna Kremer (21 Oktober 1887 – 7 Juli 1956) adalah seorang penyanyi soprano berdarah Yahudi Rusia yang memegang kewarganegaraan Rusia, Amerika Serikat, dan Argentina. Ia mula-mula meraih ketena...

Lee County, North Carolina

County in North Carolina, United States County in North CarolinaLee CountyCountyLee County Courthouse FlagSealMotto: Committed Today for a Better TomorrowLocation within the U.S. state of North CarolinaNorth Carolina's location within the U.S.Coordinates: 35°29′N 79°10′W / 35.48°N 79.17°W / 35.48; -79.17Country United StatesState North CarolinaFoundedMarch 6, 1907Named forRobert E. LeeSeatSanfordLargest communitySanfordArea • Total259...

 

Original Rags

Original Ragsby Scott JoplinFront cover of Original Rags sheet musicGenreRagtimeFormRagPublished1899 (1899)PublisherCarl HoffmanInstrument: Piano SoloArranged by Charles N. Daniels Original Rags (copyrighted March 15, 1899) was an early ragtime medley for piano.[1] It was the first of Scott Joplin's rags to appear in print, in early 1899, preceding his Maple Leaf Rag by half a year. Publication history The tune's copyright was registered on March 15, 1899,[1] and it was ...

 

Southwell railway station

Former railway station in Nottinghamshire, England SouthwellSouthwell railway station building in 2008General informationLocationSouthwell, Newark and Sherwood, NottinghamshireEnglandGrid referenceSK705544Platforms2Other informationStatusDisusedHistoryPre-groupingMidland RailwayPost-groupingLondon, Midland and Scottish RailwayKey dates1 July 1847Opened1871Rebuilt in stone15 June 1959Closed to passengers7 December 1964Closed for freight Southwell railway station served the town of Southwell in...

Amiga

Family of personal computers sold by Commodore This article is about the family of personal computers. For other uses, see Amiga (disambiguation). AmigaThe 1987 Amiga 500 was the bestselling model.ManufacturerCommodore InternationalProduct familyAmigaTypePersonal computerGame console (CD32)Release dateJuly 23, 1985; 38 years ago (1985-07-23) (Amiga 1000)Introductory priceAmiga 1000: US$1,295 (equivalent to $3,670 in 2023)Monitor: US$300 (equivalent to $850 in 2023)Di...

 

Progressive Organizations of Switzerland

Defunct political party in Switzerland Progressive Organisations of Switzerland Progressive Organisationen der SchweizOrganisations progressistes de SuisseAbbreviationPOCHFounded1969 (1969)Dissolved1993 (1993)Merged intoGreen Party of SwitzerlandIdeologyCommunismPolitical positionFar-leftPolitics of SwitzerlandPolitical partiesElections The Progressive Organisations of Switzerland (POCH; German: Progressive Organisationen der Schweiz; French: Organisations progressistes de...

 

Lacrosse

Team sport This article is about the team sport. For other uses, see Lacrosse (disambiguation). Not to be confused with La Crosse, Wisconsin. LacrosseMen's field lacrosse game between North Carolina and DukeHighest governing bodyWorld LacrosseNicknamesThe Medicine GameThe Creator's Game[1]First played12th century, modified by Europeans in the 17th centuryCharacteristicsContactYesTypeTeam sport, stick sport, ball sportEquipmentLacrosse stick and ball in addition to various body ar...

The Taking of Christ (Caravaggio)

Painting by Caravaggio The Taking of ChristItalian: Cattura di Cristo nell' ortoArtistCaravaggioYearc. 1602Mediumoil on canvasDimensions133.5 cm × 169.5 cm (52.6 in × 66.7 in)LocationNational Gallery of Ireland On loan from the Society of Jesus, Leeson Street., Dublin The Taking of Christ (Italian: Presa di Cristo nell'orto or Cattura di Cristo) is a painting, of the arrest of Jesus, by the Italian Baroque master Michelangelo Merisi da Caravaggio. O...

 

George de Rue Meiklejohn

American politician (1857–1929) George de Rue MeiklejohnUnited States Assistant Secretary of WarIn office1897–1901PresidentWilliam McKinleyPreceded byJoseph DoeSucceeded byWilliam Cary SangerMember of the U.S. House of Representativesfrom Nebraska's 3rd districtIn officeMarch 4, 1893 – March 3, 1897Preceded byOmer Madison KemSucceeded bySamuel Maxwell5th Lieutenant Governor of NebraskaIn office1889–1891GovernorJohn Milton ThayerPreceded byHibbard H. SheddSucceeded...