A.I, Data and Software Engineering

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Number of Islands solution

petamind

In this post, we have a look at using a queue and breath-first search algorithm to solve a Leetcode challenge. The problem is stated as follows. Given an m x n 2D binary grid grid which represents a map of '1's (land) and '0's (water), return the number of islands. An island is surrounded by water and is formed by connecting adjacent lands horizontally or vertically. You may assume all four edges...

SAMPLING Bagging vs Pasting

One way to get a diverse set of classifiers is to use very different training algorithms,as just discussed. Another approach is to use the same training algorithm for everypredictor but to train them on different random subsets of the training set. Whensampling is performed with replacement, this method is called bagging(short for bootstrap aggregating). When sampling is performed without...

Dealing with missing data

petamind

In real-world data, there are some instances where a particular element is absent because of various reasons, such as corrupt data, failure to load the information, or incomplete extraction. Handling the missing values is one of the greatest challenges faced by analysts because making the right decision on how to handle it generates robust data models. Let us look at different ways of imputing...

Network protocols quick notes

In the world of technology, there are vast numbers of users’ communicating with different devices in different languages. That also includes many ways in which they transmit data along with the different software they implement. Yes, we’re talking about “networking protocols” which are a set of rules that help in governing the way a particular technology will function for...

THE JOEL TEST quick note: 12 STEPS TO BETTER CODE

Recently, I came across a company’s profile and found their Joel test. Basically, it is for a better quality of software team/company. So I decided to share it here in the simplified version. The great part about it is that it takes about 3-5 minutes compared to approx 6 years to understand SEMA. The Joel Test Joel test questions The neat thing about The Joel Test is that it’s easy to get a...

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