Actify Data Labs Senior Data Scientist Interview Questions and Answers

Python provides several libraries for spelling correction, including TextBlob and autocorrect.

• TextBlob library uses a pre-trained model to correct spelling errors

• autocorrect library uses Levenshtein distance algorithm to suggest corrections

• Both libraries require installation and importing before use

• Example: Using TextBlob - 'from textblob import TextBlob' and 'blob = TextBlob('Helo, how are yuo?')'

• Example: Using autoco...read more

Use feature selection techniques to reduce dimensionality and improve model performance.

• Perform exploratory data analysis to identify redundant or irrelevant features.

• Use correlation analysis to identify highly correlated features and remove one of them.

• Use regularization techniques like Lasso or Ridge regression to penalize high coefficients.

• Use dimensionality reduction techniques like PCA or t-SNE to transform high-d...read more