• 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
Algorithm Design and Comparative Analysis for Outlier
Algorithm Design and Comparative Analysis for Outlier

... of clusters is launched. Many experiments in distinct dataset concur that his or her process can discover far better outliers together with lower computational charge as opposed to additional getting out distance based methods involving outlier detection throughout data stream. N. Bansal et al. (201 ...
Neural Networks for Data Mining: Constrains and Open
Neural Networks for Data Mining: Constrains and Open

... NN and their soft computing hybridizations have been used in a variety of DM tasks [3]. We can say that the main contribution of NN toward DM stems from rule extraction and from clustering. Rule Extraction and Evaluation: Typically a network is first trained to achieve the required accuracy rate. Red ...
Clustering in Fuzzy Subspaces - Theoretical and Applied Informatics
Clustering in Fuzzy Subspaces - Theoretical and Applied Informatics

... Fig. 2. The results of clustering of 0 g1360 data set with various values of f (in the first column: f = 0.5, second column f = 2, third column f = 10); first row – first attribute, sixth row – sixth attribute. The representation of cluster’s membership functions is symbolical – the membership funct ...
The Sloan Digital Sky Survey  Big Compute
The Sloan Digital Sky Survey Big Compute

... I discussed the data processing, ...
DMIN`11 The 2011 International Conference on Data Mining
DMIN`11 The 2011 International Conference on Data Mining

... follow the formatting and uploading instructions (different to practice at some other WORLDCOMP'11 conferences). Submissions must be uploaded by March 10, 2011. Papers must not have been previously published or currently submitted for publication elsewhere. The length of the final/Camera-Ready paper ...
Educational Data Mining Overview
Educational Data Mining Overview

Data mining based on medical diagnosis
Data mining based on medical diagnosis

... numerical examination values which can interpreted as normal, low or high values according to the normal reference range set for the respective keyword. Having three possible values for a keyword we need binary properties. Two conversion methods could be used. We can assign a property for each value ...
Data Mining for Network Intrusion Detection
Data Mining for Network Intrusion Detection

... compare these features with attacks signatures raise the alarm when possible intrusion happens ...
Chapter_1_Introduction to Data Mining
Chapter_1_Introduction to Data Mining

ISAM 5931 - UHCL MIS
ISAM 5931 - UHCL MIS

ECML/PKDD 2004 - Computing and Information Studies
ECML/PKDD 2004 - Computing and Information Studies

... captures an unknown input-output mapping on the basis of limited evidence about its nature. The evidence is called the training sample. We wish to construct the “best” model that is as close as possible to the true but unknown mapping function. This process is called training or modeling. • The trai ...
Document
Document

... Clustering: the process of grouping a set of objects into classes of similar objects  Documents within a cluster should be similar  Documents from different clusters should be ...
A Study of Application of Data Mining Algorithms In Healthcare
A Study of Application of Data Mining Algorithms In Healthcare

... include precise diagnosis of infection and disease, lifestyle management, and development of highly targeted treatments” and because the “knowledge of DNA and its function is key to the understanding of living organisms.” He also mentions his belief that reading a person’s genome may soon be less t ...
Analysis of Hepatitis Dataset using Multirelational Association Rules
Analysis of Hepatitis Dataset using Multirelational Association Rules

... The Connection algorithm uses some new measures of interest and considers the concepts of blocks and segments. The blocks are a set of tuples of one table with the values of one or more attributes in common. Figure 2 shows the blocks of the Biopsy and Urinalysis tables in alternate colors. The attri ...
$doc.title

Markov Blanket Feature Selection for Support Vector Machines
Markov Blanket Feature Selection for Support Vector Machines

an empirical review on unsupervised clustering algorithms in
an empirical review on unsupervised clustering algorithms in

... or the solution. This measure of quality could ...
A Study of DBSCAN Algorithms for Spatial Data Clustering
A Study of DBSCAN Algorithms for Spatial Data Clustering

... MinPts is to look at the behavior of the distance from a point to its kth nearest neighbor, which is called k-dist. The k-dists are computed for all the data points for some k. III. VDBSCAN Algorithm DBSCAN uses a density-based definition of a cluster, it is relatively resistant to noise and can han ...
7. Decision Trees and Decision Rules
7. Decision Trees and Decision Rules

...  A surveillance video is represented by a number of short (4 seconds) overlapping video segments.  The relationship among video segments and their features and among features themselves is represented by a graph which edges connect the segments to features and features to features.  The weights o ...
ENHANCED PREDICTION OF STUDENT DROPOUTS USING
ENHANCED PREDICTION OF STUDENT DROPOUTS USING

... imbalance and multi dimensionality, which can affect the low performance of students. In this paper, we have collected different database from various colleges, among these 500 best real attributes are identified in order to identify the factor that affecting dropout students using neural based clas ...
Data Exploration and Preparation
Data Exploration and Preparation

... q  Given N data vectors from n-dimensions, find k ≤ n orthogonal vectors (principal components) that can be best used to represent data q  Steps " Normalize input data: Each attribute falls within the same range " Compute k orthonormal (unit) vectors, i.e., principal components " Each input data ( ...
The Data warehouse described as a
The Data warehouse described as a

... characterized by relatively low volume of transactions. Queries are often very complex and involve aggregations. For OLAP systems a response time is an effectiveness measure. OLAP applications are widely used by Data Mining techniques. - In OLAP database there is aggregated, historical data, stored ...
Review of Algorithms for Clustering Random Data
Review of Algorithms for Clustering Random Data

... for particular application. Data mining concept can be used for huge data object. In this information age, where there is a huge amount of data saturation. For a particular task such a huge amount of data may not be required only a small amount of data may be required for particular tasks .Data mini ...
Data Mining - Motivation - Knowledge Engineering Group
Data Mining - Motivation - Knowledge Engineering Group

... Can you find any patterns involving regions, date, products for which the sales differ significantly from the average? ...
FE22961964
FE22961964

... processing uncertainty. Uncertainty arises in many forms in today’s databases: imprecision, non-specificity, inconsistency, vagueness, etc. Fuzzy sets exploit uncertainty in an attempt to make system complexity manageable. As such, fuzzy sets constitute a powerful approach to deal not only with inco ...
< 1 ... 338 339 340 341 342 343 344 345 346 ... 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