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Algorithms for Information Retrieval. Introduction
Algorithms for Information Retrieval. Introduction

OUTLIER DETECTION AND SYSTEM ANALYSIS USING MINING
OUTLIER DETECTION AND SYSTEM ANALYSIS USING MINING

... The intrusion detection system has been implemented using various data mining techniques which help user to identify or classify various attacks or number of intrusion in a network. KDD dataset is one of the popular dataset to test classification technique s. In this paper our work is done on analys ...
HG2212691273
HG2212691273

... concise representation of a specified size for the range query results, while incurring minimal information loss, shall be computed and returned to the user. Such a concise range query not only reduces communication costs, but also offers better usability to the users, providing an opportunity for i ...
Advances in Environmental Biology  Mohammad Ali Aghaei,
Advances in Environmental Biology Mohammad Ali Aghaei,

... understandable patterns in data [1]. Now, data mining is becoming an important tool to convert the data into information. It is commonly used in a wide series of profiling practices, such as marketing, fraud detection and scientific discovery [2]. Data mining is the method of extracting patterns fro ...
Clustering Categorical Data Streams
Clustering Categorical Data Streams

PPT - Department of Computer Science
PPT - Department of Computer Science

APPLICATION OF DATA MINING METHODS FOR ANALYZING OF
APPLICATION OF DATA MINING METHODS FOR ANALYZING OF

A clustering algorithm using the tabu search approach
A clustering algorithm using the tabu search approach

... apply the simulated annealing technique to select suitable current best solution so that speed the cluster generation. Experimental results demonstrate the proposed tabu search approach with simulated annealing algorithm for cluster generation is superior to the tabu search approach with Generalised ...
Performance Evaluation of Partition and Hierarchical Clustering
Performance Evaluation of Partition and Hierarchical Clustering

... is the similarity score of G and H, L denote the length of the local alignment of G and H, and Q is normalization parameter. The normalization parameter Q is computed as a value when two residues are matched with each other. This value depends on the distribution of residues in the local alignment o ...
Steven F. Ashby Center for Applied Scientific Computing
Steven F. Ashby Center for Applied Scientific Computing

... Starting with some pairs of clusters having three initial centroids, while other have only one. © Tan,Steinbach, Kumar ...
CLUSTERING METHODOLOGY FOR TIME SERIES MINING
CLUSTERING METHODOLOGY FOR TIME SERIES MINING

... means that methods of cluster analysis enable one to divide the objects under investigation into groups of similar objects frequently called clusters or classes. Given a finite set of data X, the problem of clustering in X is to find several cluster centres that can properly characterize relevant cl ...
ERSA Slides - Craig Ulmer
ERSA Slides - Craig Ulmer

... Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy’s National Nuclear Security Administration under contract DE-AC04-94AL85000. ...
Data Mining using Conceptual Clustering
Data Mining using Conceptual Clustering

as a PDF
as a PDF

Weighted Clustering Ensembles
Weighted Clustering Ensembles

Clustering Non-Ordered Discrete Data, JOURNAL OF INFORMATION SCIENCE AND ENGINEERING, Vol 30, PP. 1-23, 2014, Alok Watve, Sakti Pramanik, Sungwon Jung, Bumjoon Jo, Sunil Kumar, Shamik Sural
Clustering Non-Ordered Discrete Data, JOURNAL OF INFORMATION SCIENCE AND ENGINEERING, Vol 30, PP. 1-23, 2014, Alok Watve, Sakti Pramanik, Sungwon Jung, Bumjoon Jo, Sunil Kumar, Shamik Sural

... and other points are assigned to the nearest center. In each iteration, a medoid is swapped with a non-medoid point such that it improves quality of clustering. A small (user specified) number of candidate swaps are considered in each iteration. The whole clustering process is repeated several times ...
Report on Evaluation of three classifiers on the Letter Image
Report on Evaluation of three classifiers on the Letter Image

... it can predict with almost 100% accuracy which is a great achievement. This result becomes very useful when we use the algorithm in real time auto learning intelligent systems. Solutions for improvement of accuracy: There are two ways we can improve the accuracy… 1. By introducing new features to th ...
Data Mining Classification
Data Mining Classification

Major Project Report Submitted in Partial fulfillment of the
Major Project Report Submitted in Partial fulfillment of the

a two-staged clustering algorithm for multiple scales
a two-staged clustering algorithm for multiple scales

... Most clustering algorithms treat different fields of data with equal weights and calculate the “distance” using the same method. They ignore the fact that different fields of data have different scales; therefore, the “distance” should be calculated differently. This study incorporated a traditional ...
Using AK-Mode Algorithm to Cluster OLAP Requirements
Using AK-Mode Algorithm to Cluster OLAP Requirements

... process that provides the exploration, explication and prediction capabilities. Another data mining system DBMiner was presented in [10]. This latter integrates different data mining functions such as characterization, comparison, association, classification, prediction and clustering, as well as it ...
S/W System Configuration
S/W System Configuration

Market-Basket Analysis Using Agglomerative Hierarchical Approach
Market-Basket Analysis Using Agglomerative Hierarchical Approach

... Essentially this is the same condition as that under which no inversions (figure 2(a)) or reversals are produced by the clustering method. Fig.2 gives an example of this, where s is agglomerated at a lower criterion value (i.e. dissimilarity) than was the case at the previous agglomeration between q ...
Data Mining - TKS
Data Mining - TKS

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

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K-means clustering

k-means clustering is a method of vector quantization, originally from signal processing, that is popular for cluster analysis in data mining. k-means clustering aims to partition n observations into k clusters in which each observation belongs to the cluster with the nearest mean, serving as a prototype of the cluster. This results in a partitioning of the data space into Voronoi cells.The problem is computationally difficult (NP-hard); however, there are efficient heuristic algorithms that are commonly employed and converge quickly to a local optimum. These are usually similar to the expectation-maximization algorithm for mixtures of Gaussian distributions via an iterative refinement approach employed by both algorithms. Additionally, they both use cluster centers to model the data; however, k-means clustering tends to find clusters of comparable spatial extent, while the expectation-maximization mechanism allows clusters to have different shapes.The algorithm has a loose relationship to the k-nearest neighbor classifier, a popular machine learning technique for classification that is often confused with k-means because of the k in the name. One can apply the 1-nearest neighbor classifier on the cluster centers obtained by k-means to classify new data into the existing clusters. This is known as nearest centroid classifier or Rocchio algorithm.
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