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Chapter 7 : Spatial Data Mining:
Chapter 7 : Spatial Data Mining:

... S and N can take, that is, each object oϵO is characterized by a single tuple that takes values in F=Dom(S)xDom(N). Datasets that have the structure as above are called georeferenced , and O is assumed to be a geo-referenced dataset. The purpose of the framework is to find interesting places, called ...
Multi-Dimensional Characterization of Temporal Data Mining on
Multi-Dimensional Characterization of Temporal Data Mining on

... an entirely new window of opportunities whereby patients can be tested, diagnosed, and operated upon in a single, faster procedure. We believe that GPGPUs can provide the performance necessary, and in this paper, characterize a temporal data-mining application in a multi-dimensional environment. Spe ...
Intoduction to Region Discovery
Intoduction to Region Discovery

as a PDF
as a PDF

... algorithms for clustering large scale transactional datasets. A transactional dataset consists of N transactions, each of which contains varying number of items. For example, t1 = {milk, bread, beer} and t2 = {milk, bread} are three-item transaction and two-item transaction respectively. A transacti ...
A Study on Frequent Pattern Mining
A Study on Frequent Pattern Mining

... Given a database DB with transactions such as T1, T2……,TN , find out pattern P which is present in at least a fraction r of the transactions. Here the fraction r is referred to as the minimum support. This measure r can be represented either as a whole number or as a fraction. That is number of occu ...
Learning Approximate Sequential Patterns for Classification
Learning Approximate Sequential Patterns for Classification

... propose a two-step process to discover such patterns. Using locality sensitive hashing (LSH), we first estimate the frequency of all subsequences and their approximate matches within a given Hamming radius in labeled examples. The discriminative ability of each pattern is then assessed from the esti ...
Structural mining of molecular biology data
Structural mining of molecular biology data

... in order by the heuristic value. The beam width of the search is enforced by controlling the length of ChildList: after inserting a new child into ChildList, if the length of ChildList exceeds the BeamWidth, the substructure at the end of the list is destroyed. The parent substructure is inserted in ...
Web user clustering and Web prefetching using Linköping University Post Print
Web user clustering and Web prefetching using Linköping University Post Print

... needs and intended tasks when they are navigating a Web site. These behaviours can be traced in the Web access log files of the Web site that the user visited. Web usage mining [2], which captures navigational patterns of Web users from log files, have achieved great success in various fields, such ...
Association Rule Algorithm Sequential Pattern Discovery using
Association Rule Algorithm Sequential Pattern Discovery using

... Applied research related to disaster especially landslide has been investigated by several researchers. First, Aanalyzing the Land use change and the landslide characteristics for communitybased disaster mitigation. The results show that a change in vegetation cover results in a modified landslide a ...
Cluster Analysis: Basic Concepts and Algorithms
Cluster Analysis: Basic Concepts and Algorithms

Data Mining for Multi-agent Fuzzy Decision Tree Structure and Rules
Data Mining for Multi-agent Fuzzy Decision Tree Structure and Rules

... automatically places the red and blue platforms in this space where they can interact. Each blue platform is controlled by its own copy of the fuzzy RM. The SG has two modes of operation. In the computer vs. computer (CVC) mode each red platform is controlled by its own controller distinct from the ...
A Scalable Parallel Classifier for Data Mining
A Scalable Parallel Classifier for Data Mining

An Overview of Data Mining Techniques
An Overview of Data Mining Techniques

A Survey of Software Packages Used for Rough Set Analysis
A Survey of Software Packages Used for Rough Set Analysis

... 1. Introduction One common aspect among the fields of machine learning, decision analysis, data mining and pattern recognition is that all of them deal with imprecise or incomplete knowledge. As a result, it is imperative that appropriate data processing tools must be employed when researching compu ...
MBPD: Motif-Based Period Detection
MBPD: Motif-Based Period Detection

... of this work being time series makes it suitable for other kinds of data such as multimedia because they can be converted to time series e.g. the extraction of MFCC from audio as it is used for one of the datasets in our experiments. Several methods have been proposed to detect periods in data. Most ...
Pobierz
Pobierz

... of the fastest machine learning algorithms. The classification outcome for the particular document is the category which the greatest number of its neighbors belongs to (a so-called majority voting) [19]. Usually k is a small positive integer. If k = 1, the object is simply assigned to a category of ...
Hiding sensitive patterns in association rules mining
Hiding sensitive patterns in association rules mining

... Privacy-preserving mining in the context of data privacy for classification rules has been investigated ...
A Review of Artificial Intelligence Algorithms in Document
A Review of Artificial Intelligence Algorithms in Document

Mining Strong Affinity Association Patterns in Data Sets
Mining Strong Affinity Association Patterns in Data Sets

...  of the 18847 frequent pairs involving items from and , about 93% of them are cross-support patterns. These cross-support patterns have extremely poor correla tion because the presence of the item from  does not necessarily imply the presence of the item from . It would be advantageous to d ...
Clustering Methods for Microarray Gene Expression Data
Clustering Methods for Microarray Gene Expression Data

Minor Thesis
Minor Thesis

An Optimized Classifier Frame Work based on Rough Set and
An Optimized Classifier Frame Work based on Rough Set and

... random tree classifier to achieve high accuracy in decisionmaking system. In which rough set works on finding the optimal reduct as input for random tree classifier in classification to achieve high accuracy with low time consumption. So completely, process is divide into two steps first is pre-proc ...
PPT
PPT

... Topology Representing Graphs Build a graph G [C x C] ...
Improving Classifications of Medical Data Based on Fuzzy ART2
Improving Classifications of Medical Data Based on Fuzzy ART2

... have been proposed, and the extraction of decision trees from transaction data is one of the most commonly studied forms of data mining. Decision tree based classification is a supervised learning method that constructs decision tree from a set of samples [1, 2]. A decision tree is a tree structure ...
Data Clustering: A Review - Research in Data Clustering
Data Clustering: A Review - Research in Data Clustering

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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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