Dimensionality and High Dimensional data in Machine Learning

Dimensionality

In Machine Learning and Data Science world dimensionality refers to the number of attributes a dataset has. For example, we have a telecommunication dataset having large numbers of attributes (region, tenure, age, address, etc). Each attribute is written in a CSV file, with each column representing each dimension. Dimensionality in machine learning is different from those which are used in mathematics or science.

High Dimensional Data

High Dimensional data means, the dataset in which the number of features exceeded the number of observations. The dataset has extremely high attributes and makes it more complex for computations. For example, we have ‘n’ numbers of observations or data points and ‘p’ no. of features or attributes. If in a dataset the values of n and p are 1000 and 2000 then the data becomes high dimensional data.

In simple words no matter how big or small is the dataset if the number of observations is greater than the number of attributes (n>p) even if it has values in single digits then also the data is high dimensional data. For computing high dimensional data, one of the most popular machine learning algorithms is Support Vector Machines(SVM). To know details about the SVM algorithm click here.

Dimensionality Reduction

In simple terms dimensionality reduction means simplifying the data for better understanding either numerically or visually. There are different methods to reduce the dimensionality of data like grouping similar data by using tools like multidimensional scaling. To know in-depth knowledge about dimensionality reduction click here.

Comments

Containerization Within Container

How to Launch Container within Container? In this article we will see how we can use the Concepts of Docker to achieve Containerization within Container. To launch another container within a running container is quite a tedious task but in this article I will show you how easily you can achieve this by applying right concepts. In this article I will be using few concepts of docker like Dockerfile , mounting volume , mounting port and few basic docker commands . Before starting with the container we need to make sure that Docker is installed and configured in our system. If docker is not configured then you can use my automated script which I made for installing and configuring docker from my GitHub Repository . After setting up with docker now we need launch a container so that we can launch another container inside it to achieve Containerization within container. There are two ways to launch container. By using docker pull command By using Dockerfile In this ...

How to Grab Someone's IP Address ?

How to Grab Anyone's IP Address? IP Address is abbreviated as Internet Protocol Address which is a unique address for all the users present on the internet. Whenever we visit any domain or click any link /images on the internet, our public IP address is being shared that source. But what if, we want someone’s IP address intentionally or we want to track someone. So in this blog I will show you how you can easily grab anyone’s IP Address just within a few steps. To grab IP address I will be using an online Web Application named Grabify IP Logger . It is an online tool that is used for IP Lookup . Before beginning with the tool it is recommended to use browser proxy or VPN . Here we have used browser proxy as you can see in the top-right corner in the image for accessing Grabify. Now we need to register ourselves in this application to use it. After registration, we have to log in to the application. After registration and login into the application, we are ready to use it. To grab...

Operating System and its Types

What is Operating System(OS)? Whenever a person starts learning about computers or any computer course the first question he is being asked is what is Operating System (OS)? So the answer is Operating System is basically a computer program that manages all other computer program after being installed into the system from the boot menu . In simple words we can say that Operating System is a software which provides a better medium for users to interact with computers. This was all about Operating System(OS) . Now lets talk about the different types of operating systems that we use in our daily life for personal use and for different other purposes. Linux, Windows, Java, MacOS,...

e-Magazine

Search This Blog