Home
Search results “Dimension reduction in data mining”
Dimensionality reduction Methods in Hindi | Machine Learning Tutorials
 
07:48
visit our website for full course www.lastmomenttuitions.com Ml full notes rupees 200 only ML notes form : https://goo.gl/forms/7rk8716Tfto6MXIh1 Machine learning introduction : https://goo.gl/wGvnLg Machine learning #2 : https://goo.gl/ZFhAHd Machine learning #3 : https://goo.gl/rZ4v1f Linear Regression in Machine Learning : https://goo.gl/7fDLbA Logistic regression in Machine learning #4.2 : https://goo.gl/Ga4JDM decision tree : https://goo.gl/Gdmbsa K mean clustering algorithm : https://goo.gl/zNLnW5 Agglomerative clustering algorithmn : https://goo.gl/9Lcaa8 Apriori Algorithm : https://goo.gl/hGw3bY Naive bayes classifier : https://goo.gl/JKa8o2
Views: 15040 Last moment tuitions
Introduction to Data Mining: Dimensionality Reduction
 
03:51
In this Data Mining Fundamentals tutorial, we discuss the curse of dimensionality and the purpose of dimensionality reduction for data preprocessing. When dimensionality increases, data becomes increasingly sparse in the space that it occupies. Dimensionality reduction will help you avoid this. -- At Data Science Dojo, we believe data science is for everyone. Our in-person data science training has been attended by more than 3600+ employees from over 742 companies globally, including many leaders in tech like Microsoft, Apple, and Facebook. -- Learn more about Data Science Dojo here: https://hubs.ly/H0f8LqR0 See what our past attendees are saying here: https://hubs.ly/H0f8LqS0 -- Like Us: https://www.facebook.com/datasciencedojo Follow Us: https://plus.google.com/+Datasciencedojo Connect with Us: https://www.linkedin.com/company/datasciencedojo Also find us on: Google +: https://plus.google.com/+Datasciencedojo Instagram: https://www.instagram.com/data_science_dojo Vimeo: https://vimeo.com/datasciencedojo
Views: 6126 Data Science Dojo
Lecture 46 — Dimensionality Reduction - Introduction | Stanford University
 
12:02
. Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "FAIR USE" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use. .
Data Mining & Business Intelligence | Tutorial #17 | Data Reduction - Dimensionality Reduction
 
07:13
Order my books at 👉 http://www.tek97.com/ #DataReduction #DimensionalityReduction Follow me on Instagram 👉 https://www.instagram.com/reng_army/ Visit my Profile 👉 https://www.linkedin.com/in/reng99/ Support my work on Patreon 👉 https://www.patreon.com/ranjiraj This video explains what is Dimensionality Reduction in Data Mining as a Data Reduction step. Watch Now! يشرح هذا الفيديو ما هو Dimensionality Reduction في Data Mining كخطوة لخفض البيانات. شاهد الآن ! Este video explica qué es la reducción de la dimensionalidad en la minería de datos como un paso de reducción de datos. Ver ahora ! В этом видео объясняется, что такое уменьшение размера в интеллектуальном анализе данных как шаг сокращения данных. Смотри ! Cette vidéo explique ce qu'est la réduction de la dimension dans l'exploration de données en tant qu'étape de réduction des données. Regarde maintenant ! In diesem Video wird erklärt, was Dimensionality Reduction in Data Mining als Datenreduktionsschritt bedeutet. Schau jetzt ! ⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐ Add me on Facebook 👉https://www.facebook.com/renji.nair.09 Follow me on Twitter👉https://twitter.com/iamRanjiRaj Read my Story👉https://www.linkedin.com/pulse/engineering-my-quadrennial-trek-ranji-raj-nair Visit my Profile👉https://www.linkedin.com/in/reng99/ Like TheStudyBeast on Facebook👉https://www.facebook.com/thestudybeast/ ⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐⭐ For more such videos LIKE SHARE SUBSCRIBE Iphone 6s : http://amzn.to/2eyU8zi Gorilla Pod : http://amzn.to/2gAdVPq White Board : http://amzn.to/2euGJ7F Duster : http://amzn.to/2ev0qvX Feltip Markers : http://amzn.to/2eutbZC
Views: 2766 Ranji Raj
Dimensionality Reduction - The Math of Intelligence #5
 
10:49
Most of the datasets you'll find will have more than 3 dimensions. How are you supposed to understand visualize n-dimensional data? Enter dimensionality reduction techniques. We'll go over the the math behind the most popular such technique called Principal Component Analysis. Code for this video: https://github.com/llSourcell/Dimensionality_Reduction Ong's Winning Code: https://github.com/jrios6/Math-of-Intelligence/tree/master/4-Self-Organizing-Maps Hammad's Runner up Code: https://github.com/hammadshaikhha/Math-of-Machine-Learning-Course-by-Siraj/tree/master/Self%20Organizing%20Maps%20for%20Data%20Visualization Please Subscribe! And like. And comment. That's what keeps me going. I used a screengrab from 3blue1brown's awesome videos: https://www.youtube.com/channel/UCYO_jab_esuFRV4b17AJtAw More learning resources: https://plot.ly/ipython-notebooks/principal-component-analysis/ https://www.youtube.com/watch?v=lrHboFMio7g https://www.dezyre.com/data-science-in-python-tutorial/principal-component-analysis-tutorial https://georgemdallas.wordpress.com/2013/10/30/principal-component-analysis-4-dummies-eigenvectors-eigenvalues-and-dimension-reduction/ http://setosa.io/ev/principal-component-analysis/ http://sebastianraschka.com/Articles/2015_pca_in_3_steps.html https://algobeans.com/2016/06/15/principal-component-analysis-tutorial/ Join us in the Wizards Slack channel: http://wizards.herokuapp.com/ And please support me on Patreon: https://www.patreon.com/user?u=3191693 Follow me: Twitter: https://twitter.com/sirajraval Facebook: https://www.facebook.com/sirajology Instagram: https://www.instagram.com/sirajraval/ Instagram: https://www.instagram.com/sirajraval/ Signup for my newsletter for exciting updates in the field of AI: https://goo.gl/FZzJ5w Hit the Join button above to sign up to become a member of my channel for access to exclusive content!
Views: 78329 Siraj Raval
Machine Learning - Dimensionality Reduction - Feature Extraction & Selection
 
05:31
Enroll in the course for free at: https://bigdatauniversity.com/courses/machine-learning-with-python/ Machine Learning can be an incredibly beneficial tool to uncover hidden insights and predict future trends. This free Machine Learning with Python course will give you all the tools you need to get started with supervised and unsupervised learning. This #MachineLearning with #Python course dives into the basics of machine learning using an approachable, and well-known, programming language. You'll learn about Supervised vs Unsupervised Learning, look into how Statistical Modeling relates to Machine Learning, and do a comparison of each. Look at real-life examples of Machine learning and how it affects society in ways you may not have guessed! Explore many algorithms and models: Popular algorithms: Classification, Regression, Clustering, and Dimensional Reduction. Popular models: Train/Test Split, Root Mean Squared Error, and Random Forests. Get ready to do more learning than your machine! Connect with Big Data University: https://www.facebook.com/bigdatauniversity https://twitter.com/bigdatau https://www.linkedin.com/groups/4060416/profile ABOUT THIS COURSE •This course is free. •It is self-paced. •It can be taken at any time. •It can be audited as many times as you wish. https://bigdatauniversity.com/courses/machine-learning-with-python/
Views: 22424 Cognitive Class
Dimensionality Reduction
 
03:10
This video is part of the Udacity course "Introduction to Computer Vision". Watch the full course at https://www.udacity.com/course/ud810
Views: 3780 Udacity
Principal Components Analysis - Georgia Tech - Machine Learning
 
04:23
Watch on Udacity: https://www.udacity.com/course/viewer#!/c-ud262/l-649069103/m-661438544 Check out the full Advanced Operating Systems course for free at: https://www.udacity.com/course/ud262 Georgia Tech online Master's program: https://www.udacity.com/georgia-tech
Views: 280905 Udacity
Dimensionality Reduction: Principal Components Analysis, Part 1
 
13:56
Data Science for Biologists Dimensionality Reduction: Principal Components Analysis Part 1 Course Website: data4bio.com Instructors: Nathan Kutz: faculty.washington.edu/kutz Bing Brunton: faculty.washington.edu/bbrunton Steve Brunton: faculty.washington.edu/sbrunton
Views: 72525 Data4Bio
Lecture 14.4 —  Dimensionality Reduction | Principal Component Analysis Algorithm — [ Andrew Ng ]
 
15:14
. Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "FAIR USE" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use. .
Dimensionality Reduction: Introduction and Basic Concepts
 
08:06
A very general overview of Dimensionality Reduction with several examples. Video by Michael Lin Music: "F*ck that," "Runway Y'" --Death Grips
Views: 3655 Complex Objects
StatQuest: Principal Component Analysis (PCA), Step-by-Step
 
21:58
Principal Component Analysis, is one of the most useful data analysis and machine learning methods out there. It can be used to identify patterns in highly complex datasets and it can tell you what variables in your data are the most important. Lastly, it can tell you how accurate your new understanding of the data actually is. In this video, I go one step at a time through PCA, and the method used to solve it, Singular Value Decomposition. I take it nice and slowly so that the simplicity of the method is revealed and clearly explained. If you are interested in doing PCA in R see: https://youtu.be/0Jp4gsfOLMs For a complete index of all the StatQuest videos, check out: https://statquest.org/video-index/ If you'd like to support StatQuest, please consider a StatQuest t-shirt or sweatshirt... https://teespring.com/stores/statquest ...or buying one or two of my songs (or go large and get a whole album!) https://joshuastarmer.bandcamp.com/
Dimensionality Reduction: High Dimensional Data, Part 1
 
12:45
Data Science for Biologists Dimensionality Reduction: High Dimensional Data Part 1 Course Website: data4bio.com Instructors: Nathan Kutz: faculty.washington.edu/kutz Bing Brunton: faculty.washington.edu/bbrunton Steve Brunton: faculty.washington.edu/sbrunton
Views: 9580 Data4Bio
Lec-33 Dimensionality reduction Using PCA
 
54:17
Lecture Series on Neural Networks and Applications by Prof.S. Sengupta, Department of Electronics and Electrical Communication Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
Views: 29322 nptelhrd
Analysis of Medical Data Using Dimensionality Reduction Techniques
 
02:56
This is a ~3-minute video highlight produced by undergraduate students Robert Colgan and David Gutierrez regarding their research topic during the 2013 AMALTHEA REU Program at Florida Institute of Technology in Melbourne, FL. They were mentored by MS student Jugesh Sundram and professor Dr. G. Bhaskar Tenali (Mathematical Sciences Department). More details about their project can be found at http://www.amalthea-reu.org.
Vishal Patel | A Practical Guide to Dimensionality Reduction Techniques
 
40:05
PyData DC 2016 This talk provides a step-by-step overview and demonstration of several dimensionality (feature) reduction techniques. Attendees should have some basic level of understanding of data wrangling and supervised learning. The presentation will also include snippets of Python code, so familiarity with Python code will be useful.
Views: 4940 PyData
Lecture 14.1 — Dimensionality Reduction Motivation I | Data Compression — [ Andrew Ng ]
 
10:10
. Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "FAIR USE" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use. .
1. Dimensionality Reduction and Clustering Example
 
03:22
Book: Introduction to Statistical Learning - with Applications in R http://www-bcf.usc.edu/~gareth/ISL/
Views: 768 MachineLearningGod
Lecture 48 — Dimensionality Reduction with SVD | Stanford University
 
09:05
. Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "FAIR USE" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use. .
SKlearn PCA, SVD Dimensionality Reduction
 
09:12
#ScikitLearn #DimentionalityReduction #PCA #SVD #MachineLearning #DataAnalytics #DataScience Dimensionality reduction is an important step in data pre processing and data visualisation specially when we have large number of highly correlated features. In this tutorial, we apply Principal Component Analysis and Singular Value decomposition to boston housing and MNIST handwriting dataset and observe the effects of dimensionality reduction on accuracy. We also see how dimensionality reduction can be used to visualize data. For all Ipython notebooks, used in this series : https://github.com/shreyans29/thesemicolon Facebook : https://www.facebook.com/thesemicolon.code Support us on Patreon : https://www.patreon.com/thesemicolon
Views: 10294 The Semicolon
Dimensionality Reduction
 
01:44:28
Access the Dimensionality Reduction Workshop materials here: https://rapidminer-my.sharepoint.com/:f:/p/hmatusow/EoaCUAnKlxVEgw2sDQPIHtwBdzI-eFqHy8OJDQIt2o-Olw?e=cZEahH
Views: 237 RapidMiner, Inc.
Reducing High Dimensional Data with PCA and prcomp: ML with R
 
23:05
Follow me on Twitter @amunategui Check out my new book "Monetizing Machine Learning": https://amzn.to/2CRUOKu In this R video, we'll see how PCA can reduce a 1000+ variable data set into 10 variables and barely lose accuracy! Walkthrough & code: http://amunategui.github.io/high-demensions-pca/ Note: data source url in the video no longer works, see the walkthrough for new source: http://amunategui.github.io/high-demensions-pca/ Note: for those that can't use xgboost - I added an alternative script using GBM in the walkthrough: http://amunategui.github.io/high-demensions-pca/ Top of the page under resources look for link: "Alternative GBM Source Code - for those that can't use xgboost" This has been re-designed as 'Reducing High Dimensional Data in R' on Udemy.com, $19 COUPON!!!: https://www.udemy.com/practical-data-science-reducing-high-dimensional-data-in-r/?couponCode=1111 Check out my other in-depth classes on Udemy.com (discounts and specials) at http://amunategui.github.io/udemy/ Follow me on Twitter https://twitter.com/amunategui and signup to my newsletter: http://www.viralml.com/signup.html More on http://www.ViralML.com and https://amunategui.github.io Thanks!
Views: 39932 Manuel Amunategui
Principal Component Analysis (PCA)
 
22:56
This Lecture Describes Principal Component Analysis (PCA) with the help of an easy example.
Views: 110763 Saurabh Singh
PCA For Dimensionality Reduction in Pattern Recognition, a slecture by Khalid Tahboub
 
22:28
This is a slecture for Prof. Boutin's course on Statistical Pattern Recognition (ECE662) made by Purdue ECE student Khalid Tahboub. The complete slecture is posted at https://www.projectrhea.org/rhea/index.php/Pca_khalid To view other slectures on the same topic go to the ECE662 course wiki at https://www.projectrhea.org/rhea/index.php/2014_Spring_ECE_662_Boutin For more information about slectures, go to http://slectures.projectrhea.org
Views: 9539 Project Rhea
Weka Tutorial 10: Feature Selection with Filter (Data Dimensionality)
 
11:09
This tutorial shows how to select features from a set of features that performs best with a classification algorithm using filter method.
Views: 67579 Rushdi Shams
Dimensionality Reduction: PCA and Gauss. Proc. Factor Analysis, by Frederic Simard
 
50:10
In this talk, you will learn the basics of dimensionality reduction. The first algorithm that is presented is the principal component analysis (PCA) which is based on explaining the variance in the data set. You will learn how to select a subset of dimensions while maintaining the most information about your data, as to, for example, make a classifier. A quick presentation of the Gaussian Process Factor Analysis follows. This algorithm extract trajectories of a system state in lower dimension space. Speaker: Frederic Simard Contact: [email protected] Website: www.atomsproducts.com
Views: 2997 CAMBAM Students
CompX: Transforming data and dimension reduction with Jono & Lewis
 
01:00
Computational Thinking and Big Data is part of the Big Data MicroMasters program offered by The University of Adelaide and edX. Learn the core concepts of computational thinking and how to collect, clean and consolidate large-scale datasets. Enrol now! http://bit.ly/2rfZXSz
Principal Component Analysis (PCA) clearly explained (2015)
 
20:16
NOTE: On April 2, 2018 I updated this video with a new video that goes, step-by-step, through PCA and how it is performed. Check it out! https://youtu.be/FgakZw6K1QQ RNA-seq results often contain a PCA or MDS plot. This StatQuest explains how these graphs are generated, how to interpret them, and how to determine if the plot is informative or not. I've got example code (in R) for how to do PCA and extract the most important information from it on the StatQuest website: https://statquest.org/2015/08/13/pca-clearly-explained/ For a complete index of all the StatQuest videos, check out: https://statquest.org/video-index/ If you'd like to support StatQuest, please consider a StatQuest t-shirt or sweatshirt... https://teespring.com/stores/statquest ...or buying one or two of my songs (or go large and get a whole album!) https://joshuastarmer.bandcamp.com/
Dimensionality reduction method
 
01:40
DATA VISALIZATION WITH PROCESSING
Views: 95 Paul Rosero
Dimensionality Reduction: High Dimensional Data, Part 2
 
10:57
Data Science for Biologists Dimensionality Reduction: High Dimensional Data Part 2 Course Website: data4bio.com Instructors: Nathan Kutz: faculty.washington.edu/kutz Bing Brunton: faculty.washington.edu/bbrunton Steve Brunton: faculty.washington.edu/sbrunton
Views: 4911 Data4Bio
Dimensionality Reduction - تقليص الأبعاد
 
56:33
Link to the first part of the tutorial https://www.youtube.com/watch?v=050QtXXNV_g&feature=youtube_gdata_player
Views: 2164 Ibrahim Almosallam
Feature Selection in Machine learning| Variable selection| Dimension Reduction
 
56:25
Feature selection is an important step in machine learning model building process. The performance of models depends in the following : Choice of algorithm Feature Selection Feature Creation Model Selection So feature selection is one important reason for good performance. They are primarily of three types: Filter Methods Wrapper Methods Embedded Methods You will learn a number of techniques such as variable selection through Correlation matrix, subset selection, stepwise forward, stepwise backward, hybrid method etc. You will also learn regularization (shrinkage) methods such as lasso and Ridge regression that can well be used for variable selection. Finally you will learn difference between variable selection and dimension reduction ANalytics Study Pack : http://analyticuniversity.com/ Analytics University on Twitter : https://twitter.com/AnalyticsUniver Analytics University on Facebook : https://www.facebook.com/AnalyticsUniversity Logistic Regression in R: https://goo.gl/S7DkRy Logistic Regression in SAS: https://goo.gl/S7DkRy Logistic Regression Theory: https://goo.gl/PbGv1h Time Series Theory : https://goo.gl/54vaDk Time ARIMA Model in R : https://goo.gl/UcPNWx Survival Model : https://goo.gl/nz5kgu Data Science Career : https://goo.gl/Ca9z6r Machine Learning : https://goo.gl/giqqmx Data Science Case Study : https://goo.gl/KzY5Iu Big Data & Hadoop & Spark: https://goo.gl/ZTmHOA
Views: 25749 Analytics University
BADM 3.3: Dimension Reduction Approaches
 
06:46
Other dimension reduction approaches This video was created by Professor Galit Shmueli and has been used as part of blended and online courses on Business Analytics using Data Mining. For more information: http://www.dataminingbook.com https://www.twitter.com/gshmueli https://www.facebook.com/dataminingbook Here is the complete list of the videos: • Welcome to Business Analytics Using Data Mining (BADM) • BADM 1.1: Data Mining Applications • BADM 1.2: Data Mining in a Nutshell • BADM 1.3: The Holdout Set • BADM 2.1: Data Visualization • BADM 2.2: Data Preparation • BADM 3.1: PCA Part 1 • BADM 3.2: PCA Part 2 • BADM 3.3: Dimension Reduction Approaches • BADM 4.1: Linear Regression for Descriptive Modeling Part 1 • BADM 4.2 Linear Regression for Descriptive Modeling Part 2 • BADM 4.3 Linear Regression for Prediction Part 1 • BADM 4.4 Linear Regression for Prediction Part 2 • BADM 5.1 Clustering Examples • BADM 5.2 Hierarchical Clustering Part 1 • BADM 5.3 Hierarchical Clustering Part 2 • BADM 5.4 K-Means Clustering • BADM 6.1 Classification Goals • BADM 6.2 Classification Performance Part 1: The Naive Rule • BADM 6.3 Classification Performance Part 2 • BADM 6.4 Classification Performance Part 3 • BADM 7.1 K-Nearest Neighbors • BADM 7.2 Naive Bayes • BADM 8.1 Classification and Regression Trees Part 1 • BADM 8.2 Classification and Regression Trees Part 2 • BADM 8.3 Classification and Regression Trees Part 3 • BADM 9.1 Logistic Regression for Profiling • BADM 9.2 Logistic Regression for Classification • BADM 10 Multi-Class Classification • BADM 11 Ensembles • BADM 12.1 Association Rules Part 1 • BADM 12.2 Association Rules Part 2 • Neural Networks: Part I • Neural Nets: Part II • Discriminant Analysis (Part 1) • Discriminant Analysis: Statistical Distance (Part 2) • Discriminant Analysis: Misclassification costs and over-sampling (Part 3)
Views: 527 Galit Shmueli
Curse of Dimensionality - Georgia Tech - Machine Learning
 
03:03
Watch on Udacity: https://www.udacity.com/course/viewer#!/c-ud262/l-666010252/m-672718832 Check out the full Advanced Operating Systems course for free at: https://www.udacity.com/course/ud262 Georgia Tech online Master's program: https://www.udacity.com/georgia-tech
Views: 16670 Udacity
Data preprocessing: Column standardization-Dimensionality reduction Lecture 7@ Applied AI Course
 
15:04
for more information please visit https://www.appliedaicourse.com
Views: 2062 Applied AI Course
Introduction to Data Mining: Feature Subset Selection
 
05:30
In this Data Mining Fundamentals tutorial, we discuss another way of dimensionality reduction, feature subset selection. We discuss the many techniques for feature subset selection, including the brute-force approach, embedded approach, and filter approach. Feature subset selection will reduce redundant and irrelevant features in your data. -- At Data Science Dojo, we believe data science is for everyone. Our in-person data science training has been attended by more than 3600+ employees from over 742 companies globally, including many leaders in tech like Microsoft, Apple, and Facebook. -- Learn more about Data Science Dojo here: https://hubs.ly/H0f8Lrw0 See what our past attendees are saying here: https://hubs.ly/H0f8M7M0 -- Like Us: https://www.facebook.com/datasciencedojo Follow Us: https://plus.google.com/+Datasciencedojo Connect with Us: https://www.linkedin.com/company/datasciencedojo Also find us on: Google +: https://plus.google.com/+Datasciencedojo Instagram: https://www.instagram.com/data_science_dojo Vimeo: https://vimeo.com/datasciencedojo
Views: 6641 Data Science Dojo
StatQuest: t-SNE, Clearly Explained
 
11:48
t-SNE is a popular method for making an easy to read graph from a complex dataset, but not many people know how it works. Here's the dope! Also, if you'd like to see a code example in R, here's one: http://statquest.org/2017/09/18/statquest-t-sne-clearly-explained/ This StatQuest is by ReQuest! StatQuesters wanted t-SNE to be clearly explained, and now I've gone and done it. For a complete index of all the StatQuest videos, check out: https://statquest.org/video-index/ If you'd like to support StatQuest, please consider a StatQuest t-shirt or sweatshirt... https://teespring.com/stores/statquest ...or buying one or two of my songs (or go large and get a whole album!) https://joshuastarmer.bandcamp.com/
PCA, SVD
 
17:37
Linear dimensionality reduction: principal components analysis (PCA) and the singular value decomposition (SVD)
Views: 64487 Alexander Ihler
A Bluffer's Guide to Dimension Reduction - Leland McInnes
 
36:33
PyData NYC 2018 Dimension reduction is a complicated topic with a vast zoo of diverse techniques for different specialised problems. This talk will seek to cut through the technical detail and focus on the core intuitions that lie behind dimension reduction. From this point of view we'll see that there are only really two core ideas you need to know to understand dimension reduction. === www.pydata.org PyData is an educational program of NumFOCUS, a 501(c)3 non-profit organization in the United States. PyData provides a forum for the international community of users and developers of data analysis tools to share ideas and learn from each other. The global PyData network promotes discussion of best practices, new approaches, and emerging technologies for data management, processing, analytics, and visualization. PyData communities approach data science using many languages, including (but not limited to) Python, Julia, and R. PyData conferences aim to be accessible and community-driven, with novice to advanced level presentations. PyData tutorials and talks bring attendees the latest project features along with cutting-edge use cases.
Views: 1713 PyData
StatQuest: MDS and PCoA
 
08:18
MDS (multi-dimensional scaling) and PCoA (principal coordinate analysis) are very, very similar to PCA (principal component analysis). There really only one small difference, but that difference means you need to know what you're doing if you're going to use MDS effectively. This video make sure you learn what you need to know to use MDS and PCoA. For a complete index of all the StatQuest videos, check out: https://statquest.org/video-index/ If you'd like to support StatQuest, please consider a StatQuest t-shirt or sweatshirt... https://teespring.com/stores/statquest ...or buying one or two of my songs (or go large and get a whole album!) https://joshuastarmer.bandcamp.com/
Advanced Data Mining projects with R : Why Dimensionality Reduction? | packtpub.com
 
09:23
This playlist/video has been uploaded for Marketing purposes and contains only selective videos. For the entire video course and code, visit [http://bit.ly/2n53Vi6]. When there are a lot of variables, it becomes difficult to extract data. We need to devise something that will let us gather data in less number of variables. Dimensionality reduction provides you with that solution. • Get a numerical dataset • Calculate the covariance matrix • Create a feature vector. Create low dimension data. For the latest Big Data and Business Intelligence video tutorials, please visit http://bit.ly/1HCjJik Find us on Facebook -- http://www.facebook.com/Packtvideo Follow us on Twitter - http://www.twitter.com/packtvideo
Views: 147 Packt Video
Principal Component Analysis (PCA) using Python (Scikit-learn)
 
19:56
Principal Component Analysis (PCA) using Python (Scikit-learn) Step by Step Tutorial: https://towardsdatascience.com/pca-using-python-scikit-learn-e653f8989e60
Views: 40525 Michael Galarnyk
PCA 1: curse of dimensionality
 
10:00
Full lecture: http://bit.ly/PCA-alg The number of attributes in our data is often a lot higher than the true dimensionality of the dataset. This means we have to estimate a large number of parameters, which are often not directly related to what we're trying to learn. This creates a problem, because our training data is limited.
Views: 71442 Victor Lavrenko
DATA MINING   1 Data Visualization   3 2 2  Multidimensional Scaling
 
06:49
https://www.coursera.org/learn/datavisualization
Views: 10315 Ryo Eng
BPDM 2017 - Dimension Reduction and Clustering
 
48:05
Ruiwen Zhang. PhD Senior Research Statistician SAS Institute, Inc.
Ali Ghodsi, Lec 4: MDS, Isomap, LLE
 
01:20:29
Ali Ghodsi's lecture on January 17, 2017 for STAT 442/842: Data Visualization, held at the University of Waterloo. Review of Multidimensional Scaling (MDS) . Introduction to Isomap algorithm. Introduction to Locally Linear Embedding (LLE) algorithm. LLE weight optimization problem.
Views: 8696 Data Science Courses
Weka Tutorial 09: Feature Selection with Wrapper (Data Dimensionality)
 
11:03
This tutorial shows you how you can use Weka Explorer to select the features from your feature vector for classification task (Wrapper method)
Views: 67527 Rushdi Shams
StatQuest: Linear Discriminant Analysis (LDA) clearly explained.
 
15:12
LDA is surprisingly simple and anyone can understand it. Here I avoid the complex linear algebra and use illustrations to show you what it does so you will know when to use it and how to interpret the results. Sample code for R is at the StatQuest website: https://statquest.org/2016/07/10/statquest-linear-discriminant-analysis-lda-clearly-explained/ For a complete index of all the StatQuest videos, check out: https://statquest.org/video-index/ If you'd like to support StatQuest, please consider a StatQuest t-shirt or sweatshirt... https://teespring.com/stores/statquest ...or buying one or two of my songs (or go large and get a whole album!) https://joshuastarmer.bandcamp.com/