Analytical Interview Questions and Answers

SVM and ANN can be used in various real-life scenarios for classification and prediction tasks.

• SVM can be used for image classification, text classification, and fraud detection.

• ANN can be used for speech recognition, natural language processing, and predicting stock prices.

• Both SVM and ANN can be used in medical diagnosis and predicting disease outcomes.

• SVM can also be used in recommendation systems and identifying spam emails.

To identify customers who have made transactions on more than 10 consecutive days.

• Identify customers who have made transactions every day for at least 10 days in a row.

• Check transaction history for each customer to determine consecutive days of transactions.

• Create a list of customers who meet the criteria.

• Consider using SQL queries or data visualization tools to analyze the data.

• Example: Customer A made transactions on days 1-10 consecutively, while Customer B only made trans...read more

Yes, I have participated in several Kaggle competitions.

• I have participated in Kaggle competitions related to image classification and natural language processing.

• I have used various machine learning algorithms such as Random Forest, Gradient Boosting, and Convolutional Neural Networks.

• I have achieved a top 10% ranking in a Kaggle competition on image classification.

• I have also contributed to open-source projects related to Kaggle competitions.

Cancellation may be increasing due to poor customer service, unclear policies, or external factors like economic downturn.

• Poor customer service leading to dissatisfaction and cancellations

• Unclear cancellation policies causing confusion and frustration

• External factors such as economic downturn affecting customers' ability to continue services

• Competitors offering better deals or services leading to customer churn

List of decreasing integers with dates

• Create an array of strings with decreasing integers and corresponding dates

• Start with the highest integer and oldest date, and decrease the integer with each subsequent date

• Example: ['10 - 2022-01-01', '9 - 2022-01-02', '8 - 2022-01-03', ...]

ANN stands for Artificial Neural Network, a machine learning model inspired by the structure and function of the human brain.

• ANN is a type of deep learning algorithm that can be used for tasks such as image recognition, natural language processing, and predictive analytics.

• It consists of layers of interconnected nodes that process and transmit information, with each layer performing a different type of computation.

• ANNs require large amounts of data to train and can be computa...read more

Instrumentation of a SQL table

• Instrumentation involves adding code to a SQL table to track its usage and performance

• This can include adding triggers, stored procedures, and indexes

• Instrumentation can help identify bottlenecks and optimize queries

• Tools like SQL Server Profiler can also be used for instrumentation