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About the Data Science Interview Questions category
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183
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January 4, 2023
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What is Levenshtein distance and how is it useful?
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273
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February 13, 2023
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What is pruning in a decision tree algorithm?
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170
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January 9, 2023
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What is the ROC curve?
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161
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January 9, 2023
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What do you understand about true positive rate and false-positive rate?
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187
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January 9, 2023
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How can you calculate accuracy using a confusion matrix?
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171
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January 9, 2023
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What are recommender systems?
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173
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January 9, 2023
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Differentiate between univariate, bivariate, and multivariate analysis
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202
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January 9, 2023
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What is the difference among UNION, MINUS and INTERSECT in SQL?
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164
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January 9, 2023
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What is the difference between INNER JOIN, OUTER JOIN, FULL OUTER JOIN?
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189
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January 9, 2023
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What are the difference between Clustered and a Non-clustered index?
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167
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January 9, 2023
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What is the difference between Data Definition Language (DDL) and Data Manipulation Language (DML)?
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207
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January 9, 2023
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What is correlation and covariance in statistics?
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173
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January 9, 2023
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What is Entropy and Information Gain in decision tree algorithm?
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176
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January 9, 2023
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What is the difference between Type I Error & Type II Error?
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183
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January 9, 2023
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Can you explain the concept of bias-variance tradeoff in machine learning and the importance of considering it?
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180
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January 9, 2023
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What are some strategies for dealing with missing data, and which imputation methods do you suggest using?
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195
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January 9, 2023
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Can dimensionality reduction improve the performance of an SVM, and if so, under what circumstances?
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177
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January 9, 2023
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What are some methods for evaluating the goodness of fit of a regression model?
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246
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January 9, 2023
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Why is mean square error a bad measure of model performance? What would you suggest instead?
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164
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January 9, 2023
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What is principal component analysis? Explain the sort of problems you would use PCA for
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153
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January 9, 2023
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When would you use random forests Vs SVM and why?
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173
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January 9, 2023
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Explain what precision and recall are
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182
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January 9, 2023
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What is a model ensembling?
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163
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January 6, 2023
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What is a hyperparameter tuning?
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173
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January 6, 2023
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What is the difference between batch and online learning?
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175
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January 6, 2023
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What is a support vector machine (SVM)?
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189
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January 6, 2023
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What is the curse of dimensionality?
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176
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January 6, 2023
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State and describe the different types of SQL joins
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184
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January 5, 2023
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What is the difference between UNION and UNION ALL?
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199
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January 5, 2023
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