CrowdANALYTIX Data Scientist Interview Questions and Answers

Q1. Scenario based SQL questions
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Q2. Zomato marketing , Nykaa CASE studies
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Q1. Difference between logistic regression and svm
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Logistic regression is a linear model used for binary classification, while SVM is a non-linear model that can handle complex decision boundaries.
• Logistic regression is a probabilistic model that predicts the probability of a binary outcome based on input features.

• SVM aims to find the hyperplane that best separates the classes in a high-dimensional space.

• Logistic regression is more interpretable and easier to implement...read more
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Q2. Data augmentation related questions
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Q1. Introduce yourself
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I am a dedicated and experienced professional with a background in marketing and a passion for driving results.
• Experienced in marketing strategies and campaigns

• Strong track record of achieving goals and targets

• Passionate about driving results and exceeding expectations
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Q2. Strengths and weaknesses
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SQL, excel, tableau , looker studio

Q1. What is your notice period.
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Q1. Difference between CNN and MLP
Ans. 
CNN is used for image recognition while MLP is used for general classification tasks.
• CNN uses convolutional layers to extract features from images while MLP uses fully connected layers.

• CNN is better suited for tasks that require spatial understanding like object detection while MLP is better for tabular data.

• CNN has fewer parameters than MLP due to weight sharing in convolutional layers.

• CNN can handle input of varying ...read more
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Q1. Basics of regression, bias variance
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Complex SQL Queries, Analytics, Case Studies - Predictive modeling

Q1. Statistical methods, Curve properties, Stock (optimization) problems, ML algorithms
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