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4C (Computing Clusters of Correlation Connected Objects)
4C (Computing Clusters of Correlation Connected Objects)

... reduction technique for correlated data is proposed which is similar to [1]. The authors focus on identifying correlated clusters for enhancing the indexing of high dimensional data only. Unfortunately, they do not give any hint to what extent their heuristic-based algorithm can also be used to gain ...
Neural Networks Demystified - Francis Analytics Actuarial Data Mining
Neural Networks Demystified - Francis Analytics Actuarial Data Mining

... complex functions in the data. The details are discussed in the body of this paper. As the focus of this paper is neural networks, the other data mining techniques will not be discussed further. Despite their advantages, many statisticians and actuaries are reluctant to embrace neural networks. One ...
Education and Science Vol XX (2014) No XXX pp
Education and Science Vol XX (2014) No XXX pp

... of the literature carried out on large scale examinations like PISA 2003 revealed that mathematical selfefficacy had a mediatory effect between PISA mathematics score and independent variables such as gender, prior knowledge about the course, cognitive skill level and learning skills and a significa ...
Computing Clusters of Correlation Connected Objects
Computing Clusters of Correlation Connected Objects

... correlated data is proposed which is similar to [1]. The authors focus on identifying correlated clusters for enhancing the indexing of high dimensional data only. Unfortunately, they do not give any hint to what extent their heuristicbased algorithm can also be used to gain new insight into the cor ...
Multivariate Maximal Correlation Analysis
Multivariate Maximal Correlation Analysis

... a number of powerful correlation measures that, in a nutshell, discover correlations hidden in data by (1) looking at various admissible transformations of the data (e.g., discretizations (Reshef et al., 2011), measurable mean-zero functions (Breiman & Friedman, 1985)), and (2) identifying the maxim ...
Context-Sensitive Data Fusion Using Structural
Context-Sensitive Data Fusion Using Structural

... linear-Gaussian and acyclic nature of Bayesian Networks can be too restrictive for evidence exploitation in general. Structural Equation Modeling (SEM) can be viewed as a generalization of these methods. It allows nonlinear and non-Gaussian factors and cyclical dependencies among factors. Also, unli ...
5. Variable selection
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... Variable selection can be a part of processing algorithm design, especially for decision trees. Nonetheless, here variable selection is employed in order to find most important or useful variables for various data mining tasks such as classification and clustering. The other good reason is to recogn ...
Boolean Matrix Factorization
Boolean Matrix Factorization

... Each column of X is independent: Given vector y and matrix A, find a vector x that minimizes ky − Axk F ...
Improving the Performance of Data Mining Models with Data Preparation Using SAS® Enterprise Miner™
Improving the Performance of Data Mining Models with Data Preparation Using SAS® Enterprise Miner™

... missing values before you fit the models. How should missing data values be treated? There is no single correct answer. Choosing the "best" missing value replacement technique inherently requires the researcher to make assumptions about the true (missing) data. For example, researchers often replace ...
Application of Proc Discrim and Proc Logistic in Credit Risk Modeling
Application of Proc Discrim and Proc Logistic in Credit Risk Modeling

... package of doing categorical data modeling. We will only discuss PROC DISCRIM and PROC LOGISTIC in this article. For other methods in categorical data modeling, please refer to Stokes et. al.1. Discriminant Analysis is an earlier alternative to Logistic Regression. Despite its strict restrictions on ...
IOSR Journal of Mathematics (IOSR-JM)
IOSR Journal of Mathematics (IOSR-JM)

... The data to be compressed consist of N data vectors, from k -dimensions. Principal Component Analysis (PCA) searches for c k dimensional orthogonal vectors that can best be used to represent the data, where c  k . The original data set are projected onto a much smaller space, resulting in data comp ...
Martian Chronicles: Is MARS better than Neural Networks
Martian Chronicles: Is MARS better than Neural Networks

... these claims are handled by Special Investigative Units (SIU) within the claim department or by some third-party investigative service. Occasionally, companies will be organized so that additional adjusters, not specifically a part of the company SIU, may also conduct special investigations on susp ...
A retrospective evaluation of a data mining approach to fetal asphyxia at delivery in a hospital database
A retrospective evaluation of a data mining approach to fetal asphyxia at delivery in a hospital database

... databases designed to monitor health practices and guide policy debates. This approach would aid in determining which particular components of prenatal care are key aspects of care leading to optimal birth outcomes. Data mining tools providing simple and effective methods of extracting knowledge fro ...
Introducing A Hybrid Data Mining Model to Evaluate Customer Loyalty
Introducing A Hybrid Data Mining Model to Evaluate Customer Loyalty

... information of cluster centers is analyzed. The results are as follows: Given that creditor refers to the customer who deposits in his account, obviously, Rbestankar and Fbestankar are higher in cluster_2 than other clusters (mean=4.39 and 4.34, respectively). Moreover, customers of cluster_2 gain h ...
An evaluation of alternative methods for testing hypotheses, from the
An evaluation of alternative methods for testing hypotheses, from the

... σ . Furthermore, let δ denote the test-relevant parameter with, say, θ1 = (θ0 , δ). Hence, after specifying Jeffreys’s translationinvariant priors on the nuisance parameters θ0 , which we would use for estimation within each model, we only require to set the prior π1 (δ) in order to define the Bayes ...
Windowing
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Context-Aware Data Mining Framework for Wireless Medical
Context-Aware Data Mining Framework for Wireless Medical

... ports the entire process from the user query to the mining. More importantly, the context will provide the system the ability to adapt to a changing environment during the data mining process and thereby providing the users with a time sensitive data accurately, efficiently and in a precise manner. ...
Data Mining in GeoVISTA Studio
Data Mining in GeoVISTA Studio

... An AssigningWeights component holds the data objects passed from the DataSetAppsWrapper component, keeps a list of selected attributes from the AttributeList component, and allows the user to assign different weights for each selected attribute (default weights are all equal to each other). Then SOM ...
INTELLIGENT MINER-DATA MINING APPLICATION FOR
INTELLIGENT MINER-DATA MINING APPLICATION FOR

... factors and this variable (IBM, 2000). The results of this analysis identified 19 independent statistically factors that represent the original 85 truck parameters. The variables that are included into the same factor are highly correlated. Table 1 summarizes the results of Major Factor Analysis The ...
Discovering Geometric Patterns in Genomic Data
Discovering Geometric Patterns in Genomic Data

Data Mining Tutorial
Data Mining Tutorial

... • 50 different BPs in data, 49 ways to split • Sunday football highlights always look good! • If he shoots enough times, even a 95% free throw shooter will miss. • Tried 49 splits, each has 5% chance of declaring significance even if there’s no relationship. ...
older_Data Mining Tutorial
older_Data Mining Tutorial

... • 50 different BPs in data, 49 ways to split • Sunday football highlights always look good! • If he shoots enough times, even a 95% free throw shooter will miss. • Tried 49 splits, each has 5% chance of declaring significance even if there’s no relationship. ...
Data Mining Tutorial
Data Mining Tutorial

... • 50 different BPs in data, 49 ways to split • Sunday football highlights always look good! • If he shoots enough times, even a 95% free throw shooter will miss. • Tried 49 splits, each has 5% chance of declaring significance even if there’s no relationship. ...
- MATEC Web of Conferences
- MATEC Web of Conferences

... most of the attributes are qualitative, which include nominal, binary, and ordinal attributes. The quantitative attributes include interval-scaled attributes, and do not have continuous attributes. Only 21 attributes of the dataset are considered in this study; the remaining 10 attributes are remove ...
Document Version - Kent Academic Repository
Document Version - Kent Academic Repository

... the use of domain knowledge to constrain the search for relationships. We were therefore surprised to discover that there was much scope for new techniques to be employed in the early stages of exploratory analysis. The two most important innovations are the category formation techniques discussed i ...
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Exploratory factor analysis

In multivariate statistics, exploratory factor analysis (EFA) is a statistical method used to uncover the underlying structure of a relatively large set of variables. EFA is a technique within factor analysis whose overarching goal is to identify the underlying relationships between measured variables. It is commonly used by researchers when developing a scale (a scale is a collection of questions used to measure a particular research topic) and serves to identify a set of latent constructs underlying a battery of measured variables. It should be used when the researcher has no a priori hypothesis about factors or patterns of measured variables. Measured variables are any one of several attributes of people that may be observed and measured. An example of a measured variable would be the physical height of a human being. Researchers must carefully consider the number of measured variables to include in the analysis. EFA procedures are more accurate when each factor is represented by multiple measured variables in the analysis. EFA is based on the common factor model. Within the common factor model, a function of common factors, unique factors, and errors of measurements expresses measured variables. Common factors influence two or more measured variables, while each unique factor influences only one measured variable and does not explain correlations among measured variables.EFA assumes that any indicator/measured variable may be associated with any factor. When developing a scale, researchers should use EFA first before moving on to confirmatory factor analysis (CFA). EFA requires the researcher to make a number of important decisions about how to conduct the analysis because there is no one set method.
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