• 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
Knowledge Mining and Big Data
Knowledge Mining and Big Data

... In 2000, Seisint Inc. develops C++ based distributed file sharing framework for data storage and querying. Structured, semi-structured and/or unstructured data is stored and distributed across multiple servers. Querying of data is done by modified C++ called ECL which uses apply scheme on read metho ...
Big Data - Lanyon Events
Big Data - Lanyon Events

... Kick Start Your Hybrid Cloud Big Data Strategy 1. Guiding Success Factors • Integrate business and technology vision (Identify stockholders that will carry over to implementation). Focus on the next 12 months • Identify your target architecture ₋ Avoid tunneling on one use case • Keep in mind Big D ...
k-Attractors: A Partitional Clustering Algorithm for umeric Data Analysis
k-Attractors: A Partitional Clustering Algorithm for umeric Data Analysis

... The work of Jing et al. (Jing, Ng and Zhexue, 2007) provides a new clustering algorithm called EWKM which is a k-means type subspace clustering algorithm for high-dimensional sparse data. Patrikainen and Meila present a framework for comparing subspace clusterings (Patrikainen and Meila 2006), while ...
Innovative Approaches of Historical Newspapers: Data Mining, Data
Innovative Approaches of Historical Newspapers: Data Mining, Data

... In this age of Big Data this paper describes how digital librairies can apply at large scale innovative approaches to better valorize and bring better experiences of old newspapers. On the first hand, the state-of-the-art OLR (optical layout recognition) technique in one of the largest heritage pres ...
Retail Sales Prediction and Item Recommendations Using Customer
Retail Sales Prediction and Item Recommendations Using Customer

Oracle Data Warehouse Concept for DSS in Financial Crisis
Oracle Data Warehouse Concept for DSS in Financial Crisis

... 2. An Overview of Financial Crisis Management Firm crisis is a process, which endangers critical goals of a firm (profitability and liquidity). According to [1], crisis represents a crucial point in a series of unsuccessful business incidents and moves, after which two situations can occur: liquidat ...
Association Rules Mining in the Stock Data
Association Rules Mining in the Stock Data

... include skipping the whole instance with a missing value, or filling the missing value with the mean/new ’unknown’ constant, or using inference, e.g. based on most similar instances. The existing null values in all the selected records were filled by using the average of its first left and first rig ...
data mining
data mining

cs2032 data warehousing and data mining
cs2032 data warehousing and data mining

Data mining libraries
Data mining libraries

... Prediction methods. These methods use some variables to predict the values of other variables. A good example for that category is classification. Based on known, labeled data, classification algorithms build models that can be used for classifying new, unseen data. Description methods: algorithms i ...
an ensemble clustering for mining high-dimensional
an ensemble clustering for mining high-dimensional

... Figure 1: Pattern extracting process from biological big data. 3.2  Feature selection and grouping Feature selection is the process of selecting a subset of relevant features d from a total of D original features for following three reasons: (a) simplification of models, (b) shorter training times, ...
Homeland Security Research at DIMACS
Homeland Security Research at DIMACS

... •We assume we have sensors to measure presence or absence of attributes. •Build a tree: •Nodes are sensors or categories (0 or 1) •Label nodes with atrribute the sensor measures for or the number of the category •Category nodes are “leaves” of the tree – nodes with only one neighbor •Two arcs exit f ...
Fair Use Agreement Important note: These slides undergo constant revisions, visit
Fair Use Agreement Important note: These slides undergo constant revisions, visit

IT6702-Data warehousing and Data Mining
IT6702-Data warehousing and Data Mining

... Use 0.3 for the minimum support value. Illustrate each step of the Apriori Algorithm. (i).Define classification? With an example explain how support Remember vector machines can be used for classification. (ii). What are the prediction techniques supported by a data mining systems? (i). Explain the ...
IJDE-24 - CSC Journals
IJDE-24 - CSC Journals

... that can serve as an independent data mining tool or a preprocessing step for other data mining tasks such as classification. Clustering is a versatile unsupervised learning method that can be used in several ways, e.g., outlier detection, data reduction and identification of natural data types and ...
Cluster
Cluster

... – Second, use model to predict unknown value • Major method for prediction is regression – Linear and multiple regression – Non-linear regression ...
IOSR Journal of Computer Engineering (IOSR-JCE) e-ISSN: 2278-0661,p-ISSN: 2278-8727 PP 42-48 www.iosrjournals.org
IOSR Journal of Computer Engineering (IOSR-JCE) e-ISSN: 2278-0661,p-ISSN: 2278-8727 PP 42-48 www.iosrjournals.org

... A visitor, in a session,navigates through Novel and Autobiography, tends to eventually make apurchase of anAutobiography book; When a user takes shorter time to traverse thesite‘s between Novel and Autobiography, the higher are chances of an eventualpurchase. The knowledge of such relationships repr ...
"A Few Useful Things to Know About Machine Learning", by P
"A Few Useful Things to Know About Machine Learning", by P

... Figure 2: Naive Bayes can outperform a state-ofthe-art rule learner (C4.5rules) even when the true classifier is a set of rules. easy to avoid overfitting (variance) by falling into the opposite error of underfitting (bias). Simultaneously avoiding both requires learning a perfect classifier, and sh ...
A Framework for Clustering Uncertain Data
A Framework for Clustering Uncertain Data

Mining Big Data: Current Status, and Forecast to the Future for
Mining Big Data: Current Status, and Forecast to the Future for

... 4) R [29]: R provides a wide variety of statistical and graphical techniques, including linear and nonlinear modeling, classical statistical tests, time-series analysis, classification, clustering, and others. R is easily extensible through functions and extensions, and the R community is noted for ...
HCS Tools - MPI-CBG
HCS Tools - MPI-CBG

... - Multiple barcodes / regular expressions possible - … work in progress… ...
Future trends in data mining
Future trends in data mining

Biased Sampling: Solution for Lower Incidence Rate
Biased Sampling: Solution for Lower Incidence Rate

... When profiling bankruptcy or defaulting behavior, we face the problem of lower incidence rates. As expected for a personal loan product, the BKO rate is less than 2 percent. With this type of low incidence rate, we would fail to get good separation. Biased sampling is a quick solution applied to han ...
MARKET BASKET ANALYSIS FOR DATA MINING by Mehmet Aydın
MARKET BASKET ANALYSIS FOR DATA MINING by Mehmet Aydın

Relationship-based Visualization of High
Relationship-based Visualization of High

< 1 ... 233 234 235 236 237 238 239 240 241 ... 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