Liquiloans Data Scientist Interview Questions and Answers

Pyspark, Python and Machine learning questions

Q1. Moderate level questions
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Q2. Moderate level questions from past work experience
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2 DSA, 1 SQL, 5 ML MCQ

Q1. Probability Questions
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Q2. Tree Based Models
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Q1. Probability Questions
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Q2. Transformer Architecture
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3 DSA Que was asked on hackerrank

Q1. 3 DSA que asked by interviewer wirh code
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Q1. Question regarding my resume .It is technical interview
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Case study-this is about loan default prediction assignment

30 Questions - 90 minutes
Difficulty level - medium

Q1. General Introduction, then cross questions on projects mentioned in resume. Discussion on interest and my field of interest. After that the interviewer tested my coding skills in sql by asking 7-8 question...read more
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Q1. Basic Introduction. Some guesstimate questions. Some questions related to business analysis. Finally he asked me about working of various ML algorithms mentioned in my resume.
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Q1. More of a formal talk. About my family background, my projects, what were my role in them. How do I manage myself while on a project. Finally confirmation on relocation availability.
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Q1. What is clustering
Ans. 
Clustering is a technique used in data analysis to group similar data points together based on their characteristics.
• Clustering is an unsupervised learning method.

• It helps in identifying patterns and relationships in data.

• Common clustering algorithms include K-means, hierarchical clustering, and DBSCAN.

• Example: Grouping customers based on their purchasing behavior.

• Example: Identifying different species of flowers based
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Q2. How to avoid overfitting
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To avoid overfitting, use techniques like cross-validation, regularization, and increasing training data.
• Use cross-validation to evaluate model performance on unseen data

• Apply regularization techniques like L1 or L2 regularization to penalize complex models

• Increase the size of the training dataset to provide more diverse examples

• Use feature selection or dimensionality reduction methods to reduce the complexity of the m...read more
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