• 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
Density-based Cluster Analysis for Identification of Fire Hot Spots in
Density-based Cluster Analysis for Identification of Fire Hot Spots in

... by NASA/GSFC/ESDIS with funding provided by NASA/HQ. The MODIS Active Fire Detections were extracted from the MCD14ML fire product distributed by NASA FIRMS. Finally, I am highly indebted to the larger open source software community for freely providing several software tools without which I would n ...
Mining Frequent Patterns with Differential Privacy
Mining Frequent Patterns with Differential Privacy

... facto standard for research in data privacy since it provides strong and provable guarantees of privacy. Our goal is to study frequent pattern mining problem under the differential privacy model. In this setting, only few works have been proposed to mine frequent patterns [3, 16, 25]. Although these ...
Course on Data Mining
Course on Data Mining

... • Now, we want to find words/terms that occur frequently close to each other in the actual text • Take the preprocessed sequential text data and then find relationships among the words/terms by evoking episode mining algorithms (WINEPI or MINEPI) • For example, we might find frequent episodes such a ...
My CV - Universidad Simón Bolívar
My CV - Universidad Simón Bolívar

Cluster Ensemble Selection - College of Engineering | Oregon State
Cluster Ensemble Selection - College of Engineering | Oregon State

Decomposition Methodology for Classification Tasks
Decomposition Methodology for Classification Tasks

... of the original concept’s values (concept aggregation) or not (function decomposition). Classical concept aggregation replaces the original target attribute with a function, such that the domain of the new target attribute is smaller than the original one. Concept aggregation has been used to classi ...
Contents
Contents

... errors, or outlier values that deviate from the expected), and inconsistent (e.g., containing discrepancies in the department codes used to categorize items). Welcome to the real world! Incomplete, noisy, and inconsistent data are commonplace properties of large real-world databases and data warehou ...
web news portal content personalization using information
web news portal content personalization using information

... Additionally, a great thank should be given here to a friend and colleague Tonimir Kišasondi, PhD, as well as the entire OSS Laboratory team; thank you for the discussions as well as the infrastructure without which this work would have never been finished. The author would also like to thank Prof. ...
Knowledge Discovery from Series of Interval Events*
Knowledge Discovery from Series of Interval Events*

... rise in call volume." In general, the rule format is as follows: If A1 and A2 and ... and Ah occur within V units of time, then B occurs within time T . This rule format is di erent from the containment relationship de ned in this current paper. The mining strategies are also di erent. The technique ...
Object-Based Selective Materialization for Efficient Implementation
Object-Based Selective Materialization for Efficient Implementation

... reflects a trade-off between space and time for efficient implementation of spatial OLAP operations. On the one hand, it is important to precompute some spatial OLAP results, such as merge of spatially connected regions. This is essential not only for fast response in spatial OLAP, but also, and oft ...
Collaborative Document Clustering
Collaborative Document Clustering

S2MP: Similarity Measure for Sequential Patterns
S2MP: Similarity Measure for Sequential Patterns

... patterns needs to be computed. Note that comparing sequential patterns has many other applications than clustering. For example, the extraction of sequential patterns under similarity constraints is of great interest, as well as sequential pattern visualization. In this context, the definition of si ...
Visualizing High-density Clusters in Multidimensional Data
Visualizing High-density Clusters in Multidimensional Data

Clustering Heterogeneous Data Using Clustering by
Clustering Heterogeneous Data Using Clustering by

... learning from dyadic data which contain pairs of two elements from two finite sets. This model is consequently applied in text mining [9], image segmentation [8] and collaborative filtering [10]. However, in order to apply their approach, one should first identify the latent class model of available ...
Methods for class prediction with high-dimensional gene
Methods for class prediction with high-dimensional gene

Foresight Report On Future Medicine
Foresight Report On Future Medicine

... The demand for responsible research and innovation 4 has become widespread among research and development funding agencies across Europe. At its simplest, RRI is linked to the growing belief among policy-makers that funded research should address grand societal challenges. RRI thus aims to shape the ...
Outlier Detection Techniques for Wireless Sensor Networks: A Survey
Outlier Detection Techniques for Wireless Sensor Networks: A Survey

Prototype-based Classification and Clustering
Prototype-based Classification and Clustering

Data Mining Classification: Rule-Based Classifiers, Bayesian
Data Mining Classification: Rule-Based Classifiers, Bayesian

... A’ is obtained by removing one of the conjuncts in A –  Compare the pessimistic error rate for r against all r’s –  Prune if one of the r’s has lower pessimistic error rate –  Repeat until we can no longer improve generalization error © Tan,Steinbach, Kumar ...
Bread,Milk
Bread,Milk

... • The running time is in the worst case O(2d) – Pruning really prunes in practice • It makes multiple passes over the dataset – One pass for every level k • Multiple passes over the dataset is inefficient when we have thousands of candidates and millions of transactions © Tan,Steinbach, Kumar ...
Decision trees in R
Decision trees in R

... Visit http://HandsOnDataScience.com/ for more Chapters. ...
Temporal Mining of Integrated Healthcare Data
Temporal Mining of Integrated Healthcare Data

... goal of supporting pattern mining tasks with the use of domain knowledge represented through an ontology and a set of predefined constraints. An ontology has the expressive power to allow for different time representations, being an explicit specification of a domain. This framework also encompasses ...
Graph based Anomaly Detection and Description: A
Graph based Anomaly Detection and Description: A

... less attractive for the task of anomaly detection. It has been shown that humans can perform at best as good as random in labeling a review as fake or not, just by looking at its text [Ott et al., 2011] but can potentially do better by analyzing other relevant information such as the authors of the ...
ENTROPY BASED TECHNIQUES WITH APPLICATIONS IN DATA
ENTROPY BASED TECHNIQUES WITH APPLICATIONS IN DATA

Intelligent Miner for Data Applications Guide
Intelligent Miner for Data Applications Guide

< 1 ... 21 22 23 24 25 26 27 28 29 ... 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