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Arijit Pal 
Viewer RatingYou must sign in to voteToday’s topic is random variable. It is better to start with an example: Suppose I roll a die. What are the probable outcomes? Exactly 1 or exactly 2 or exactly 3 or exactly 4 or exactly 5 or exactly 6. No number in between. Let’s put another example: if … Read more
Viewer RatingYou must sign in to voteIn statistics, a sample is a part of a population and a population is a whole; it’s every member of a group. All elements in a sample must also by definition be part of the population as it is defined. The sample should be representative of the population from … Read more
Viewer RatingYou must sign in to voteLet’s start today’s discussion on product recommendation system. Key points as apart of Exploratory Data Analysis: Collect data from source in csv or excel format or in a database. Make sure the customer and product id are well maintained in the table (perform cleansing on null rows). Make the … Read more
Viewer RatingYou must sign in to voteToday, I want to talk about a very interesting fish named Arowana, which is very popular all over the world as pet fish because of its beauty, variety and easy maintenance. In South East Asia, this fish is considered as lucky fengshui fish. Types: There are 4 super types … Read more
Viewer RatingYou must sign in to voteIn my last post, I explained the concept and design of recommendation system for movie based products. Today, I want to explain the model for hotel based recommendation system. You must collect demographic data of customers who have booked the hotels and you can get it easily from any … Read more
Viewer RatingYou must sign in to voteHello! I hope you enjoyed my last few articles on Machine learning. Today, I want to talk about a very interesting topic, that is recommendation system. There are a number of articles on this topic. But I do not want to re-explain any of these. My intention is to … Read more
Viewer RatingYou must sign in to voteLet us try to explain today’s topic without delving into statistics. Consider that we are analysing height of men for a population of m number of dataset. Now, if we are Indian, we shall attempt to collect data from Indian men because it is the easiest way to collect. … Read more
Viewer RatingYou must sign in to voteHi Friends, Today I would like to discuss on the most popular classification and regression algorithm (better to say a set of algorithms) named Decision Tree. What is Decision tree? By the name suggested in the model, it is a tree-based structural model to identify or classify or predict … Read more
Viewer RatingYou must sign in to voteWhat is ARIMA? Actually, it is a combination of two models – AR and MA. AR – Auto Regressive. MA – Moving Average. Lots of jargons? Let me make it clear. Auto Regressive means when there is some correlation between values in a time series and the values that … Read more
Viewer RatingYou must sign in to voteDear Friends, Hope you are all well. Today I want to discuss an interesting topic and that is time series analysis. Yes, we are trying to predict the amount of data that is captured in some interval of time. Now you can ask – if we already have linear … Read more