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I applied via Naukri.com and was interviewed before Feb 2023. There were 2 interview rounds.
PCA is used to reduce the dimensionality of data by finding the most important features.
PCA is used when dealing with high-dimensional data to reduce the number of features and avoid multicollinearity.
It helps in visualizing data in lower dimensions while retaining as much variance as possible.
PCA is commonly used in image processing, genetics, finance, and other fields where dimensionality reduction is needed.
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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.
I appeared for an interview before Jul 2021.
Bagging and boosting are ensemble techniques used to improve the accuracy of machine learning models.
Bagging involves training multiple models on different subsets of the training data and then combining their predictions through voting or averaging.
Boosting involves iteratively training models on the same data, with each subsequent model focusing on the samples that the previous models misclassified.
Bagging reduces va...
I applied via Naukri.com and was interviewed before Jul 2021. There were 3 interview rounds.
I applied via Job Portal and was interviewed before Jan 2021. There was 1 interview round.
I applied via Naukri.com and was interviewed in Nov 2023. There were 2 interview rounds.
SQL, select statment and DDL commands
I applied via Campus Placement and was interviewed before Feb 2023. There were 2 interview rounds.
Leet code practice solve medium difficulty questions
I applied via Job Fair and was interviewed in Jun 2024. There were 2 interview rounds.
Coding test with mcq - aptitude , coding , stats , ml
posted on 18 Apr 2023
I applied via Campus Placement and was interviewed in Oct 2022. There were 2 interview rounds.
I applied via Approached by Company and was interviewed before Jun 2022. There were 4 interview rounds.
Quant, Reasoning and python based MCQs
Data science project pipeline involves multiple components and follows a step-by-step process.
1. Define the problem statement and objectives of the project.
2. Collect and preprocess the data needed for analysis.
3. Explore and visualize the data to gain insights.
4. Build and train machine learning models to solve the problem.
5. Evaluate the models using appropriate metrics.
6. Deploy the model into production and monitor...
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