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DM-Part1b
DM-Part1b

data mining
data mining

... fair excellent fair fair fair excellent excellent fair fair fair excellent excellent fair excellent ...
Chameleon: Hierarchical clustering using
Chameleon: Hierarchical clustering using

Predict the Diagnosis of Heart Disease Patients Using Classification Mining Techniques
Predict the Diagnosis of Heart Disease Patients Using Classification Mining Techniques

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Resolution-based Outlier Mining and its Applications
Resolution-based Outlier Mining and its Applications

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IOSR Journal of Computer Engineering (IOSR-JCE)
IOSR Journal of Computer Engineering (IOSR-JCE)

Outlier Ensembles - Outlier Definition, Detection, and Description
Outlier Ensembles - Outlier Definition, Detection, and Description

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Chapter 0 - Temple Fox MIS
Chapter 0 - Temple Fox MIS

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Open Attachment

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What Every MCT Needs to Know about Clustering and High

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Adaptive Scaling of Cluster Boundaries for Large

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Compiler Techniques for Data Parallel Applications With Very Large

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The Application of Data-Mining to Recommender Systems

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Question Bank

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Outlier Detection Algorithms in Data Mining Systems
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Discovering Web Document Clusters with Self
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Mining information from data: A present

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Fuzzy-rough data mining - Aberystwyth University Users Site
Fuzzy-rough data mining - Aberystwyth University Users Site

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Cluster analysis



Cluster analysis or clustering is the task of grouping a set of objects in such a way that objects in the same group (called a cluster) are more similar (in some sense or another) to each other than to those in other groups (clusters). It is a main task of exploratory data mining, and a common technique for statistical data analysis, used in many fields, including machine learning, pattern recognition, image analysis, information retrieval, and bioinformatics.Cluster analysis itself is not one specific algorithm, but the general task to be solved. It can be achieved by various algorithms that differ significantly in their notion of what constitutes a cluster and how to efficiently find them. Popular notions of clusters include groups with small distances among the cluster members, dense areas of the data space, intervals or particular statistical distributions. Clustering can therefore be formulated as a multi-objective optimization problem. The appropriate clustering algorithm and parameter settings (including values such as the distance function to use, a density threshold or the number of expected clusters) depend on the individual data set and intended use of the results. Cluster analysis as such is not an automatic task, but an iterative process of knowledge discovery or interactive multi-objective optimization that involves trial and failure. It will often be necessary to modify data preprocessing and model parameters until the result achieves the desired properties.Besides the term clustering, there are a number of terms with similar meanings, including automatic classification, numerical taxonomy, botryology (from Greek βότρυς ""grape"") and typological analysis. The subtle differences are often in the usage of the results: while in data mining, the resulting groups are the matter of interest, in automatic classification the resulting discriminative power is of interest. This often leads to misunderstandings between researchers coming from the fields of data mining and machine learning, since they use the same terms and often the same algorithms, but have different goals.Cluster analysis was originated in anthropology by Driver and Kroeber in 1932 and introduced to psychology by Zubin in 1938 and Robert Tryon in 1939 and famously used by Cattell beginning in 1943 for trait theory classification in personality psychology.
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