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I applied via LinkedIn and was interviewed in Sep 2023. There were 2 interview rounds.
Bias-variance tradeoff is the balance between underfitting and overfitting in machine learning models.
Bias refers to error from erroneous assumptions in the learning algorithm, leading to underfitting.
Variance refers to error from sensitivity to small fluctuations in the training set, leading to overfitting.
The tradeoff involves finding the right level of model complexity to minimize both bias and variance.
Regularizati...
SQL code to find 2nd highest salary
Use the MAX() function to find the highest salary
Use the WHERE clause to exclude the highest salary
Order the salaries in descending order and limit the result to 1
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I applied via Campus Placement and was interviewed before Sep 2020. There were 3 interview rounds.
I applied via Recruitment Consultant and was interviewed in Mar 2021. There was 1 interview round.
I applied via Company Website and was interviewed before Jan 2020. There was 1 interview round.
Code for parsing a triangle
Use a loop to iterate through each line of the triangle
Split each line into an array of numbers
Store the parsed numbers in a 2D array or a list of lists
The ASCII value is a numerical representation of a character. It includes both capital and small alphabets.
ASCII values range from 65 to 90 for capital letters A to Z.
ASCII values range from 97 to 122 for small letters a to z.
For example, the ASCII value of 'A' is 65 and the ASCII value of 'a' is 97.
PCA is a dimensionality reduction technique, decision tree is a classification algorithm, and computer vision is a field of study focused on enabling computers to interpret and understand visual information.
PCA is used to reduce the number of variables in a dataset while retaining the most important information.
Decision trees are used to classify data based on a set of rules and conditions.
Computer vision involves usin...
I applied via Referral and was interviewed in Mar 2021. There were 4 interview rounds.
Data science is the field of extracting insights and knowledge from data using various techniques and tools.
Data science involves collecting, cleaning, and analyzing data to extract insights.
It uses various techniques such as machine learning, statistical modeling, and data visualization.
Data science is used in various fields such as finance, healthcare, and marketing.
Examples of data science applications include fraud...
Python and R are programming languages commonly used in data science and statistical analysis.
Python is a general-purpose language with a large community and many libraries for data manipulation and machine learning.
R is a language specifically designed for statistical computing and graphics, with a wide range of packages for data analysis and visualization.
Both languages are popular choices for data scientists and hav...
I applied via Company Website and was interviewed in Nov 2023. There was 1 interview round.
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