نتایج جستجو برای: consensus clustering

تعداد نتایج: 183089  

Journal: :Data Mining and Knowledge Discovery 2021

Abstract Dealing with relational learning generally relies on tools modeling data. An undirected graph can represent these data vertices depicting entities and edges describing the relationships between entities. These be well represented by multiple graphs over same set of arising from different catching heterogeneous relations. The those networks are often structured in unknown clusters varyi...

Journal: :International Journal on Artificial Intelligence Tools 2004

2016
Atheer Al-Najdi Nicolas Pasquier Frédéric Precioso

Clustering is the process of partitioning a dataset into groups based on the similarity between the instances. Many clustering algorithms were proposed, but none of them proved to provide good quality partition in all situations. Consensus clustering aims to enhance the clustering process by combining different partitions obtained from different algorithms to yield a better quality consensus so...

Journal: :Bioorganic & medicinal chemistry 2012
Chia-Wei Chu John D Holliday Peter Willett

Consensus clustering involves combining multiple clusterings of the same set of objects to achieve a single clustering that will, hopefully, provide a better picture of the groupings that are present in a dataset. This Letter reports the use of consensus clustering methods on sets of chemical compounds represented by 2D fingerprints. Experiments with DUD, IDAlert, MDDR and MUV data suggests tha...

2010
Matthew D. Wilkerson D. Neil Hayes

UNLABELLED Unsupervised class discovery is a highly useful technique in cancer research, where intrinsic groups sharing biological characteristics may exist but are unknown. The consensus clustering (CC) method provides quantitative and visual stability evidence for estimating the number of unsupervised classes in a dataset. ConsensusClusterPlus implements the CC method in R and extends it with...

Journal: :Journal of bioinformatics and computational biology 2012
Natalia Novoselova Igor Tom

Many external and internal validity measures have been proposed in order to estimate the number of clusters in gene expression data but as a rule they do not consider the analysis of the stability of the groupings produced by a clustering algorithm. Based on the approach assessing the predictive power or stability of a partitioning, we propose the new measure of cluster validation and the selec...

2010
Matthew D. Wilkerson

Consensus Clustering [1] is a method that provides quantitative evidence for determining the number and membership of possible clusters within a dataset, such as microarray gene expression. This method has gained popularity in cancer genomics, where new molecular subclasses of disease have been discovered [3, 4]. The Consensus Clustering method involves subsampling from a set of items, such as ...

2004
Alexander P. Topchy Anil K. Jain William F. Punch

Clustering ensembles have emerged as a powerful method for improving both the robustness and the stability of unsupervised classification solutions. However, finding a consensus clustering from multiple partitions is a difficult problem that can be approached from graph-based, combinatorial or statistical perspectives. We offer a probabilistic model of consensus using a finite mixture of multin...

Journal: :Bioinformatics 2013
Eric F. Lock David B. Dunson

MOTIVATION In biomedical research a growing number of platforms and technologies are used to measure diverse but related information, and the task of clustering a set of objects based on multiple sources of data arises in several applications. Most current approaches to multisource clustering either independently determine a separate clustering for each data source or determine a single 'joint'...

Journal: :CoRR 2015
Brijnesh J. Jain

Although consistency is a minimum requirement of any estimator, little is known about consistency of the mean partition approach in consensus clustering. This contribution studies the asymptotic behavior of mean partitions. We show that under normal assumptions, the mean partition approach is consistent and asymptotic normal. To derive both results, we represent partitions as points of some geo...

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