• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Data Mining: Techniques, Applications and Issues
Data Mining: Techniques, Applications and Issues

... data from various perspectives and summarizing it into useful information. In this paper we have focused a variety of techniques, approaches and different areas of the research which are helpful in data mining and its applications. As we are aware that many MNC’s and large organizations are operated ...
Attribute and Information Gain based Feature
Attribute and Information Gain based Feature

... on those observations objects are divided into multiple groups such that every group epitomizes unique behaviour. The challenge of high dimensional data clustering is materialized due to swift extension of our competence in automatic generation of data and possession. Among available properties or a ...
Using Data Mining Confidence and Support for Privacy Preserving
Using Data Mining Confidence and Support for Privacy Preserving

... that T  I. A unique identifier TID is given to each transaction. A transaction T is said to contain X, a set of items in I, if X  T. An association rule is an implication of the form “X  Y”, where X  I, Y  I, and X  Y =. The rule X  Y has a support s in the transaction set D is s% of the tra ...
The Application of Big Data Analysis Techniques and Tools in
The Application of Big Data Analysis Techniques and Tools in

... emerging techniques of intelligence research under the big data environment, like data mining, visualization, semantic processing, etc. Meanwhile it also summarizes some new tools, such as Weka, Sitespace, etc. In order to promote the development of intelligence theory research and practice, it is v ...
DATA MINING LECTURE 1
DATA MINING LECTURE 1

... Examples: eye color, zip codes, words, rankings (e.g, good, fair, bad), height in {tall, medium, short} Nominal (no order or comparison) vs Ordinal (order but not comparable) ...
The Discrete Basis Problem
The Discrete Basis Problem

ppt
ppt

... Examples: eye color, zip codes, words, rankings (e.g, good, fair, bad), height in {tall, medium, short} Nominal (no order or comparison) vs Ordinal (order but not comparable) ...
080-30: Mining Transactional and Time Series Data
080-30: Mining Transactional and Time Series Data

A Wavelet-Based Anytime Algorithm for K
A Wavelet-Based Anytime Algorithm for K

A Review On Data Mining Process In Healthcare Department
A Review On Data Mining Process In Healthcare Department

... Antonie et al. [18] studied data mining techniques for tumor detection. The experiments are related to digital mammography. The data mining techniques explored to achieve this are association rule mining and neural networks. With the two algorithms they could achieve classification accuracy up to 70 ...
CSCE590/822 Data Mining Principles and Applications
CSCE590/822 Data Mining Principles and Applications

Data Mining
Data Mining

... • Classification Techniques (Week 7- Week 8Week 9) ...
CRM Unit 4 - WordPress.com
CRM Unit 4 - WordPress.com

Data mining:Data mining
Data mining:Data mining

... providing a comprehensive yet concise representation of the data. They also show that even a good visualisation takes some training and experience to interpret. The final step in data preparation is to transform the data for mining. Ideally, you feed all your attributes into the data mining tool and ...
Lecture 1: Introduction, CRISP-DM, Visualization
Lecture 1: Introduction, CRISP-DM, Visualization

... Various modeling techniques are selected and applied and their parameters are calibrated to optimal values. Some techniques have specific requirements on the form of data. Therefore, stepping back to the data preparation phase is often necessary. ...
Data Mining Unit 1 - cse652fall2011
Data Mining Unit 1 - cse652fall2011

... • Draws ideas from machine learning/AI, pattern recognition, statistics, and database systems • Traditional Techniques may be unsuitable due to – Enormity of data – High dimensionality of data – Heterogeneous, distributed nature of data Sajjad Haider ...
A Probabilistic Substructure-Based Approach for Graph Classification
A Probabilistic Substructure-Based Approach for Graph Classification

... structure based descriptors using a frequent subgraph mining algorithm and selecting the best substructures to define the feature vectors, which is subsequently used by Support Vector Machine (SVM) classifiers to build the classification model. Han et al. [22] showed that frequent closed graphs base ...
Detecting Outliers in High-Dimensional Datasets with Mixed Attributes
Detecting Outliers in High-Dimensional Datasets with Mixed Attributes

Optimized association rule mining using genetic algorithm
Optimized association rule mining using genetic algorithm

... [1, 2]. Among the areas of data mining, the problem of deriving associations from data has received a great deal of attention. Association rules are used to identify relationships among a set of items in database. These relationships are not based on inherent properties of the data themselves (as wi ...
Privacy Preserving Clustering on Horizontally Partitioned Data
Privacy Preserving Clustering on Horizontally Partitioned Data

... site respectively. A naïve protocol for comparing x and y without using the random number generator rngJK would be as follows: DHJ generates a random number r using rngJT and sends (r+x) to DHK. Since r disguises the value of x, there is no information leak. DHK then subtracts y from (r+x) and sends ...
Knowledge Discovery and Data Mining
Knowledge Discovery and Data Mining

... Related Definitions (continued) Several research projects are inter or cross-disciplinary with respect to data mining as well as to business, finance, marketing and other areas. These approaches define data ...
time series data mining research problem, issues, models
time series data mining research problem, issues, models

... representations into three categories, namely nondata adaptive, data adaptive, and model based. Nondata Adaptive: In nondata-adaptive representations, the parameters of the transformation remain the same for every time series regardless of its nature. The first nondata-adaptive representations were ...
BIS
BIS

... • PharmADE, ensures that patients are not prescribed drugs that have harmful interactions. • Pharmacy order-entry system invokes these applications as a prescription is entered. If either system detects a problem with the prescription, it generates an alert. ...
Research Issues in Data Mining
Research Issues in Data Mining

... may need be integrated into an existing transaction-oriented environment), and time constraints (any potential competitive advantage may depend critically on being able to develop and deploy a predictive model quickly). If one asks the BP what their most pressing problems are, they will almost certa ...
Tutorials for Project on Building a Business Analytic Model Using
Tutorials for Project on Building a Business Analytic Model Using

... decision-support systems to analyze aggregated information for sales, finance, budget, and many other types of applications. OLAP is about aggregating measures based on dimension hierarchies and storing these pre-calculated aggregations in a special data structure. With the help of pre-aggregations ...
< 1 ... 250 251 252 253 254 255 256 257 258 ... 505 >

Nonlinear dimensionality reduction



High-dimensional data, meaning data that requires more than two or three dimensions to represent, can be difficult to interpret. One approach to simplification is to assume that the data of interest lie on an embedded non-linear manifold within the higher-dimensional space. If the manifold is of low enough dimension, the data can be visualised in the low-dimensional space.Below is a summary of some of the important algorithms from the history of manifold learning and nonlinear dimensionality reduction (NLDR). Many of these non-linear dimensionality reduction methods are related to the linear methods listed below. Non-linear methods can be broadly classified into two groups: those that provide a mapping (either from the high-dimensional space to the low-dimensional embedding or vice versa), and those that just give a visualisation. In the context of machine learning, mapping methods may be viewed as a preliminary feature extraction step, after which pattern recognition algorithms are applied. Typically those that just give a visualisation are based on proximity data – that is, distance measurements.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report