HCL Group Intern Interview Questions and Answers

Q1. What is Stochastic Gradient Descend?
Ans. 
Stochastic Gradient Descent is an optimization algorithm used to minimize the cost function in machine learning by updating parameters iteratively.
• SGD is a variant of Gradient Descent that updates the model's parameters using a single training example at a time.

• It is computationally efficient and is commonly used in large-scale machine learning tasks.

• SGD is suitable for online learning and can handle large datasets eff...read more
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Q2. How to improve SGD?
Ans. 
To improve SGD, consider adjusting learning rate, using momentum, implementing learning rate schedules, and adding regularization techniques.
• Adjust learning rate: Experiment with different learning rates to find the optimal value for faster convergence.

• Use momentum: Incorporate momentum to accelerate SGD in the relevant direction and dampen oscillations.

• Implement learning rate schedules: Decay the learning rate over ti...read more
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Q1. HR Round was Easy one
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2 Questions of Medium leetcode difficulty.

The topic was given to 8-10 people and starting from a random person the GD starts.

Q1. SQL query to get 3rd largest element.
Ans. 
Use SQL query with ORDER BY and LIMIT to get 3rd largest element.
• Use ORDER BY clause to sort the elements in descending order.

• Use LIMIT 2,1 to skip the first two largest elements and get the 3rd largest element.
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Q2. Programme to swap two objects (deep copy).
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Program to swap two objects (deep copy)
• Create a temporary object to store one of the objects

• Copy the values of the second object into the first object

• Copy the values from the temporary object into the second object
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Q1. Behavioural questions
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Q1. Technical and hr
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Code to automate the application

Q1. Introduction and the basics
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Q1. Basic Programming questions
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Q2. Array , Stack , DSA , Java
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Q1. What is revenue recognition
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Revenue recognition is the process of recording revenue in a company's financial statements when it is earned.
• Revenue recognition is important for accurately reflecting a company's financial performance.

• It involves determining when revenue is earned and when it can be recognized on the income statement.

• Revenue is typically recognized when goods are delivered or services are performed, regardless of when payment is rece...read more
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