Clustering Analysis of Competitive Learning Network for Molecular Data

Author(s):  
Lin Wang ◽  
Minghu Jiang ◽  
Yinghua Lu ◽  
Frank Noe ◽  
Jeremy C. Smith
2007 ◽  
Vol 17 (06) ◽  
pp. 447-458 ◽  
Author(s):  
LIN WANG ◽  
MINGHU JIANG ◽  
YINGHUA LU ◽  
MINFU SUN ◽  
FRANK NOE

The research aim is to use three clustering technologies for establishing molecular data model of large size sets by comparison between low energy samples (LES) and local molecular samples (LMS). Hierarchical cluster of multi-level tree distance relation, competitive learning network of similar inputs falling into the same cluster and topological SOM are used to analyze 6242 LES and 5000 LMS. Our experiments show that in SOM, there are 24 to 25 Davies-Boulding clustering index and color map cluster units in the LES more than 10 to 12 in the LMS, which is consistent with the results of hierarchical cluster and competitive learning network in the rough. The hierarchical cluster reflects the biggest inter-cluster distance about 30 for the LES is far larger than that of LMS about 10. The intra-cluster distance of LES about 15 is also far bigger than that of LMS about 3. In SOM, there are more cluster borders of high values (black) reflecting large distance and more clusters in the D-matrix and U-matrix of LES than that of LMS, due to the biggest standard deviation range from -8 to 10 of samples feature of the LES is bigger than that of LMS from -2.5 to 2.5.


2010 ◽  
Vol 24 (1) ◽  
pp. 126-137 ◽  
Author(s):  
Daniela Furlan ◽  
Ileana W Carnevali ◽  
Barbara Bernasconi ◽  
Nora Sahnane ◽  
Katia Milani ◽  
...  

Author(s):  
Süleyman AVCI ◽  
Nilgün Tekin ◽  
Cengiz SANCAK ◽  
Sebahattin ÖZCAN ◽  
Amir Orojpour Marangi

Phylogenetic relationships were studied based on morphology and nuclear ribosomal DNA internal transcript spacer (nrDNA ITS) sequences in 49 populations of 36 Onobrychis taxa belonging to 5 sections (Dendobrychis, Lophobrychis, Onobrychis, Heliobrychis and Hymenobrychis) naturally grown in Turkey. The morphological data (46 quantitative characters) were standardized and submitted for PCA analysis before the performance of hierarchical clustering analysis. In addition, a 577-bp region of the nrDNA ITS sequences was compared to generate a dendrogram using the neighbor-joining method. According to the obtained results, the Onobrychis genus is clearly divided into the Onobrychis and Sisyrosema subgenera both molecularly and morphologically; however, in terms of molecular data, while the Onobrychis subgenus showed polyphyletic features, the Sisyrosema subgenus had monophyletic features. Additionally, long-wing taxa belonging to Dendobrychis and Onobrychis and O. crista-galli belonging to Lophobrychis located in the same clade in Onobrychis showed polyphyletic features. This finding was confirmed in terms of long-wing taxa as well as morphology and indicated that these three sections were entangled with each other under the Onobrychis subgenus.


Author(s):  
Lin Wang ◽  
Minghu Jiang ◽  
Yinghua Lu ◽  
Frank Noe ◽  
Jeremy C. Smith

Algorithms ◽  
2014 ◽  
Vol 7 (4) ◽  
pp. 492-509 ◽  
Author(s):  
Xuebin Qin ◽  
Mei Wang ◽  
Jzau-Sheng Lin ◽  
Xiaowei Li

2016 ◽  
Vol 8 (1) ◽  
pp. 49-69 ◽  
Author(s):  
Androniki Tamvakis ◽  
George E. Tsekouras ◽  
Anastasios Rigos ◽  
Christos Kalloniatis ◽  
Christos-Nikolaos Anagnostopoulos ◽  
...  

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