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UPGMA (unweighted pair group method with arithmetic mean) is a simple agglomerative (bottom-up) hierarchical clustering method. The method is generally attributed to Sokal and Michener. The UPGMA method is similar to its weighted variant, the WPGMA method. Note that the unweighted term indicates that all distances contribute equally to each average that is computed and does not refer to the math by which it is achieved. Thus the simple averaging in WPGMA produces a weighted result and the proportional averaging in UPGMA produces an unweighted result.

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rdf:type	software yago:Abstraction100002137 yago:Act100030358 yago:Activity100407535 yago:Algorithm105847438 yago:Cognition100023271 yago:Datum105816622 yago:Event100029378 yago:Information105816287 yago:Procedure101023820 yago:PsychologicalFeature100023100 yago:YagoPermanentlyLocatedEntity yago:Rule105846932 yago:WikicatAlgorithms yago:WikicatDataClusteringAlgorithms
rdfs:label	UPGMA (ca) UPGMA (cs) Unweighted Pair Group Method with Arithmetic mean (de) Unweighted pair group method with arithmetic mean (fr) 非加重結合法 (ja) UPGMA (en)
rdfs:comment	Unweighted Pair Group Method with Arithmetic mean, kurz UPGMA (deutsch etwa: Ungewichtete Paargruppenmethode mit arithmetischem Mittel) bezeichnet eine Variante der Hierarchische Clusteranalyse. Sie wird oft in der Bioinformatik zur Rekonstruktion phylogenetischer Bäume angewendet. Im Gegensatz zu anderen Verfahren wie der Neighbor-Joining-Algorithmus basiert UPGMA auf der Annahme der Molekularen Uhr, d. h., dass alle Taxa mit derselben konstanten Rate evolvieren. (de) UPGMA (Unweighted pair group method with arithmetic mean) est le nom d'un algorithme destiné à la construction d'un arbre phylogénétique. Cette méthode permet la transformation d'une matrice de distances (entre différents organismes, populations, ou séquences de nucléotides) en un arbre enraciné. (fr) UPGMA (unweighted pair group method with arithmetic mean) is a simple agglomerative (bottom-up) hierarchical clustering method. The method is generally attributed to Sokal and Michener. The UPGMA method is similar to its weighted variant, the WPGMA method. Note that the unweighted term indicates that all distances contribute equally to each average that is computed and does not refer to the math by which it is achieved. Thus the simple averaging in WPGMA produces a weighted result and the proportional averaging in UPGMA produces an unweighted result. (en) 非加重結合法（Unweighted Pair Group Method with Arithmetic mean、UPGMAと略す）は系統樹を作製するためのボトムアップ式のクラスタ解析法である。入力データは対象の各ペア間の距離であり、有根系統樹が作製される。進化速度が一定（分子時計仮説）と仮定して有根系統樹を作成する際に用いられる。 (ja) UPGMA (Unweighted Pair Group Method with Arithmetic mean) és el nom en anglès d'un algorisme d'agrupament jeràrquic (clustering). Aquest mètode permet la transformació d'una matriu de distàncies (entre diferents organismes, poblacions o seqüències de nucleòtids) en un arbre arrelat. La matriu proporciona la unió de les distàncies entre tots els parells d'elements. L'algorisme funciona per iteracions successives, que redueixen progressivament la mida de les matrius. (ca) UPGMA (unweighted pair group method with arithmetic mean; česky metoda neváženého párování s aritmetickým průměrem) je jednoduchá aglomerativní hierarchická shluková metoda (jde o tzv. bottom-up metodu, kdy se nejprve shlukují páry sobě nejpodobnější, které se následně shlukují až do konečné sítě). Metodu představili Sokal a Michener. (cs)
foaf:depiction
dcterms:subject	Computational phylogenetics Cluster analysis algorithms Phylogenetics Bioinformatics algorithms
Wikipage page ID	355968 (xsd:integer)
Wikipage revision ID	1116395633 (xsd:integer)
Link from a Wikipage to another Wikipage	Bacillus stearothermophilus Robert R. Sokal DNA Ultrametric Sequence alignment Molecular clock WPGMA Phenetic Cluster analysis Complete-linkage clustering Dendrogram Micrococcus luteus Weissella 5S ribosomal RNA Acholeplasma Ecology Cardinality Protein RNA Bacillus atrophaeus Computational phylogenetics Cluster analysis algorithms Phylogenetics Charles Duncan Michener Rosalind (education) Hierarchical clustering Cultural evolutionism Single-linkage clustering Distance matrix Bioinformatics algorithms Phylogenetic trees Phylogenetic tree Molecular clock hypothesis Protein electrophoresis Similarity matrix Single linkage clustering Complete linkage clustering Neighbor-joining Ultrametricity
Link from a Wikipage to an external page	http://www.slimsuite.unsw.edu.au/teaching/upgma/ https://books.google.com/books%3Fid=KBoHuoNRO5MC&pg=PA319&lpg=PA319&dq=UPGMA+clustering&source=bl&ots=9t_4R2kFgr&sig=c4jHFEouGm-KCxbg9lwKQZNnWcQ&hl=de&ei=G7kqSo_wFc2Rsga86MyeDA&sa=X&oi=book_result&ct=result&resnum=3 https://github.com/SergioFierens/ai4r/blob/master/lib/ai4r/clusterers/average_linkage.rb
sameAs	UPGMA UPGMA UPGMA UPGMA UPGMA UPGMA UPGMA UPGMA UPGMA UPGMA UPGMA UPGMA
dbp:wikiPageUsesTemplate	dbt:Anchor dbt:Reflist dbt:Short_description dbt:Phylogenetics
thumbnail	wiki-commons:Special:FilePath/UPGMA_Dendrogram_5S_data.svg?width=300

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