Honeywell International India Data Scientist Interview Questions and Answers

Predictive modeling project

Q1. Explain the project and that related questions only.
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Basics and Fundamentals

Q1. Reason for job switch
Ans. 
Seeking new challenges and opportunities for growth in a different environment.
• Looking for a more challenging role to further develop skills

• Interested in exploring new technologies and methodologies

• Seeking a better work-life balance or company culture

• Opportunity for career advancement or higher salary

• Desire for a change in industry or focus area
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Q2. Work Culture Expectations
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Q1. Tell me a project you did in school that shows innovation?
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Q1. What is the difference between AI, deep learning and machine learning
Ans. 
AI is the broader concept of machines being able to carry out tasks in a way that we would consider smart. Machine learning is a subset of AI that allows machines to learn from data. Deep learning is a subset of machine learning that uses neural networks with many layers to model and solve complex problems.
• AI is the broader concept of machines being able to carry out tasks in a way that we would consider smart.

• Machine ...read more
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Q1. What is difference between lstm and rnn
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LSTM is a type of RNN that addresses the vanishing gradient problem by using memory cells.
• RNN stands for Recurrent Neural Network, a type of neural network that processes sequential data.

• LSTM stands for Long Short-Term Memory, a type of RNN that includes memory cells to retain information over long sequences.

• LSTM is designed to overcome the vanishing gradient problem, which occurs when training RNNs on long sequences.

• L...read more
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Q1. What are different evaluation matrix ?
Ans. 
Evaluation matrices are used to assess the performance of models in data science.
• Confusion matrix: used to evaluate the performance of classification models.

• Precision, recall, and F1 score: measures for binary classification models.

• Mean squared error (MSE): evaluates the performance of regression models.

• R-squared: assesses the goodness of fit for regression models.

• Area under the ROC curve (AUC-ROC): evaluates the perfo...read more
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Q1. Tell me about yourself
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Q2. Questions from projects which was mentioned on resume
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Q1. Fitment based questions
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Q2. Explain a project
Ans. 
Developed a machine learning model to predict customer churn for a telecom company.
• Collected and cleaned customer data including usage patterns and demographics

• Used classification algorithms like Random Forest and Logistic Regression to build the model

• Evaluated model performance using metrics like accuracy, precision, and recall
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Math, English, reasoning

Q1. Asked me about expected salary
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Python programming for 45 for minutes

Q1. What are the hyperparameters of SVM
Ans. 
Hyperparameters of SVM include C, kernel, gamma, degree, and coef0.
• C: Regularization parameter that controls the trade-off between achieving a low error on the training data and minimizing model complexity.

• Kernel: Specifies the type of hyperplane used to separate the data.

• Gamma: Kernel coefficient for 'rbf', 'poly', and 'sigmoid' kernels.

• Degree: Degree of the polynomial kernel function.

• Coef0: Independent term in kernel...read more
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Q2. How to tune that hyperparameters
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Hyperparameters can be tuned using techniques like grid search, random search, and Bayesian optimization.
• Grid search: Exhaustively search through a specified subset of hyperparameters.

• Random search: Randomly sample hyperparameter combinations.

• Bayesian optimization: Use probabilistic models to predict the performance of different hyperparameter configurations.
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