Hack the Review : HackerEarth Machine Learning Challenge

Challenge Over

OPENS AT: Jun 28, 2021, 01:30 PM

CLOSES ON: Jul 28, 2021, 01:30 PM

DURATION: 30 days



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The ability to purchase nearly anything on the internet has revolutionized the way people shop today. It's no surprise that today's consumers tend to rely on reviews and ratings to make educated purchasing decisions. 95% of online shoppers read reviews before making a purchase choice, and 86% regard reviews to be a critical asset. Online reviews assist you in optimizing your customer experience and establishing a positive online reputation.


You are hired as a Machine Learning Engineer from a top online clothing company. Your task is to predict the subcategory of clothing based on the features provided in the dataset.


You are given a dataset that contains reviews and ratings of various categories of clothing. You want to understand which category of clothing is the most popular and has the highest and lowest rating. Therefore, you decide to classify these reviews according to their clothing categories.

The benefits of practicing this problem by using Machine Learning techniques are as follows:

  • This challenge encourages you to apply your Machine Learning skills to build a model that classifies the reviews according to their clothing categories.
  • This challenge will help you enhance your knowledge of Natural Language Processing (NLP) and classification.Classification is one of the basic building blocks and  NLP is one of the advanced fields of Machine Learning and Artificial Intelligence.

We challenge you to build a model that successfully classifies the reviews provided concerning their clothing categories.


Considering these unprecedented times that the world is facing due to the Coronavirus pandemic, we wish to do our bit and contribute the prize money for the welfare of society.


Machine Learning is an application of Artificial Intelligence (AI) that provides systems with the ability to automatically learn and improve from experiences without being explicitly programmed. Machine Learning is a Science that determines patterns in data. These patterns provide a deeper meaning to problems. First, it helps you understand the problems better and then solve the same with elegance.

Here’s presenting the HackerEarth Machine Learning challenge: Hack the Review

This challenge is designed to help you improve your Machine Learning skills by competing and learning from fellow participants.

Why should you participate?

  • To analyze and implement multiple algorithms and determine which is more appropriate for a problem
  • To get hands-on experience in Machine Learning problems

Who should participate?

  • Working professionals
  • Data Science or Machine Learning enthusiasts
  • College students (if you understand the basics of predictive modeling)


Machine Learning practice


  • Your output will be evaluated only for 50% of the test data while the contest is running. Once the contest is over, output for the remaining 50% of the data will be eval...
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