Mirafra Technologies Data Scientist Interview Questions and Answers

Q1. What is Adaboost?
Ans. 
Adaboost is a machine learning algorithm that combines multiple weak learners to create a strong learner.
• Adaboost stands for Adaptive Boosting.

• It works by adjusting the weights of incorrectly classified instances so that subsequent weak learners focus more on them.

• The final prediction is made by combining the predictions of all the weak learners, weighted by their accuracy.

• Example: Adaboost is commonly used in face det...read more
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Q2. Print the binary tree in different order
Ans. 
Printing a binary tree in different orders
• Use inorder traversal to print the binary tree in ascending order

• Use preorder traversal to print the binary tree in root-left-right order

• Use postorder traversal to print the binary tree in left-right-root order
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Few standard dsa questions were asked.

Q1. Explain projects
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Q2. Introduce urself
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Q1. Basics of regression, bias variance
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Based on NLP

Q1. One-on-one with the company CEO.
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Related to NLP

Q1. One-on-one with company CEO
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Q1. Difference between LSTM and BiLSTM
Ans. 
LSTM is a type of recurrent neural network that can remember previous inputs. BiLSTM is a variant that processes input in both directions.
• LSTM stands for Long Short-Term Memory

• LSTM can remember long-term dependencies in data

• BiLSTM processes input in both forward and backward directions

• BiLSTM is useful for tasks such as named entity recognition and sentiment analysis
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Python

Q1. What is the hardest project u have done
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