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Could you discuss the outlier detection methods you've utilized in earlier projects?
Data Science
SAP
null
null
null
Could you elaborate on the differences between L1 and L2 regularization techniques in regression analysis, and when it's recommended to utilize one over the other?
Data Science
Coinbase
null
null
null
Could you elucidate the minimum height tree concept and the process to assemble one?
Machine Learning
Robinhood
null
null
null
could you explain how a graphics processing unit (gpu) works?
Data Analytics
Nvidia
null
null
null
could you explain how cross-validation is used to assess the performance of a machine learning model?
Machine Learning
Intel
null
null
null
Could you explain some of the ways dimensionality reduction is carried out in Machine Learning? Does it vary depending on the type of data involved?
Data Science
SoFi
null
null
null
Could you explain the essential phases of backpropagation used in neural network training?
Machine Learning
Plaid
null
null
null
Could you explain the importance of training and loss graphs for neural networks? How do various loss functions impact the shape of the loss graph, and what are some commonly known ones? What is the contrast between the training and loss graphs, and how do they assist in optimizing and maximizing model performance?
Data Science
SAP
null
null
null
Could you explain the purposes of load balancers and reverse proxies and when each should be employed?
Machine Learning
Coinbase
null
null
null
Could you explain your experience with Big Data and SQL?
Data Engineer
PayPal
null
null
null
Could you explain your experience with probability and modeling?
Data Science
Robinhood
null
null
pe
Could you expound on the DMatrix functionality in XGBoost and its distinction from other gradient boosting data structures?
Machine Learning
Coinbase
null
null
null
Could you give an example of a time you had to solve a data problem?
Data Analytics
null
null
null
null
Could you give us an understanding of this role?
Data Analytics
Goldman Sachs
null
null
null
Could you illustrate how to write Python code that computes the Fibonacci numbers?
Machine Learning
Coinbase
null
null
null
Could you outline an algorithm for detecting the longest strictly increasing subarray via dynamic programming?
Data Science
SAP
null
coding
null
could you outline the process of setting up an a/b test for this purpose?
Data Analytics
Intel
null
null
null
Could you please share an example of where you had to work under a tight deadline?
Data Engineer
Capital One
null
null
null
Could you provide an example of a situation where the insights derived from your data analysis had a substantial impact on the performance of the business?
Data Analytics
JPMorgan Chase
null
null
null
Could you share examples of any obstacles you've faced while implementing supervised machine learning and how you've been able to solve them?
Data Science
SAP
null
null
null
Could you share with me a time when you went the extra mile to accomplish something?
Data Science
Coinbase
null
null
null
Could you share with me a time when you went the extra mile to accomplish something?
Data Science
Chime
null
null
null
Could you share your experience with a particular machine learning model and explain its mechanics?
Data Science
SoFi
null
null
null
Could you showcase your skills in creating a KNN classifier from scratch?
Data Science
Chime
null
null
null
Could you tell me about a community you are passionate about?
Data Science
Coinbase
null
null
pe
Could you tell me about a time when you aided a colleague with his work?
Data Science
Chime
null
null
null
Could you tell me about a time when you aided a colleague with his work?
Data Science
Robinhood
null
null
pe
Could you tell me more about the key projects the person in this role will be working on?
All
Mastercard
null
null
null
Could you tell me what are the main features of Python?
Python
null
null
No
No
Could you tell us about why you'd be a good fit for SoFi?
Data Science
SoFi
null
null
null
Could you walk me through the process of training a machine learning model and then deploying it?
Machine Learning
Coinbase
null
null
pe
Could you walk me through the steps of calculating precision and recall in a machine learning model?
Data Science
Robinhood
null
null
null
Could you walk us through a case study where you applied machine learning techniques to solve a problem?
Data Science
JPMorgan Chase
null
null
null
count maximum out of a list with jumps
Data Analytics
JPMorgan Chase
null
null
null
count minimum meeting rooms needed given two time range array
Data Analytics
JPMorgan Chase
null
null
null
Create a cloud monitoring platform for real-time performance tracking.
Machine Learning
Plaid
null
null
null
Create a dictionary from key-value pairs
Python
null
null
No
No
Create a dual-axis chart in Tableau to present Sales and Profit across different years using the Sample Superstore dataset.
Data Analytics
null
null
null
null
Create a dual-axis chart in Tableau to present Sales and Profit across different years using the Sample Superstore dataset.
Data Analytics
Pico MES
null
null
null
Create a function convert_to_bst to convert a sorted list into a balanced binary tree.
Data Analytics
Mastercard
null
coding
null
Create a function rain_days to calculate the probability of rain on the nth day after today. The probability that it will rain tomorrow depends on whether it rained today and yesterday. If it rained both days, theres a 20% chance of rain tomorrow. If it rained one of the days, theres a 60% chance. If it rained neither ...
Data Science
Goldman Sachs
null
coding
null
Create a function that returns a list of words that are not present in both input sentences, treating words as case-insensitive.
Data Engineer
Wells Fargo
null
coding
null
Create a function that takes a list of poems (sentences) and returns a dictionary where keys represent word frequencies, and values are lists of words with that frequency.
Data Engineer
Capital One
null
coding
null
Create a function to append the count of each characters occurrences in a sentence after that character.
Data Engineer
Capital One
null
coding
null
Create a function traverse_count to determine the number of paths in an (n × n) grid. Given an integer (n), write a function traverse_count to determine the number of paths from the top left corner of an (n × n) grid to the bottom right. You may only move right or down.
Data Engineer
Robinhood
null
coding
null
Create a function, rotate_matrix, to rotate a given array by 90 degrees in the clockwise direction.
Data Analytics
Capital One
null
coding
null
Create a lambda function that prints the total of all the elements in this list -> [5, 8, 10, 20, 50, 100].
Python
null
null
No
No
Create a program to convert dates from yyyy-mm-dd to dd-mm-yyyyy.
Python
null
null
Yes
No
Create a query to compute the year-over-year growth rate of revenue for each product category.
SQL
Citigroup
null
coding
null
create a view in tableau to analyze the sales, profit, and quantity sold across different subcategories of items present under each category.
Data Analytics
Salesforce
null
null
null
Create an algorithm max_repeating to find the character with the longest continuous repetition in a string
All
PayPal
null
coding
null
Create an algorithm max_repeating to find the character with the longest continuous repetition in a string
Machine Learning
PayPal
null
coding
null
Create an SQL query: use JOIN and COUNT functions to show a query result from a given database.
SQL
Pico MES
null
yes
null
create possible db table in oracle that should be represent the given scenarios.
Data Analytics
Oracle
null
null
null
create user schema (issuetracking) and grant permission to all objects.
Data Analytics
Oracle
null
null
null
Debug a query: Correct the errors in an existing query to make it functional.
SQL
Pico MES
null
null
null
Define a Dataframe in Pandas
Python
null
null
No
No
Define A Hash Table?
Machine Learning
PayPal
null
null
null
Define a lambda function, an iterator, and a generator in Python?
Python
null
null
No
No
Define a random variable and explain the difference between discrete and continuous random variables.
Data Science
Goldman Sachs
null
null
null
Define a Stacked Bar chart.
Data Engineer
null
null
null
null
Define a TDE file.
Data Engineer
null
null
null
null
Define a Unique Key in SQL.
SQL
null
null
null
null
Define an SQL term: what do the terms like foreign and primary key, truncate, drop, union, union all, and left join and inner join mean (and when youd use them).
SQL
Pico MES
null
null
null
define and explain the relationship among the tables
Data Analytics
Oracle
null
null
null
Define Batch, Stochastic, and Mini gradient descent.
Machine Learning
null
null
null
null
Define BETWEEN statements in SQL?
SQL
null
null
null
null
Define bi-directional cross filtering
Data Analytics
null
null
null
null
Define confidence interval and its benefits
Data Science
Glider
2,022
null
null
define confounding variables
Data Science
IBM
null
null
null
Define Constructor in Python
Python
null
null
No
No
Define correlation and its significance in statistics.
Data Analytics
Morgan Stanley
null
null
null
Define data warehousing and highlight its distinctions from a traditional database.
Data Engineer
Capital One
null
null
null
Define different types of SQL functions.
SQL
null
null
null
null
Define docstring in Python?
Python
null
null
No
No
Define encapsulation in Python
Python
null
null
No
No
Define epoch, iterations, and batches.
Machine Learning
null
null
null
null
Define Expected Value and Its Importance.
Data Analytics
Mastercard
null
null
null
Define generators in Python?
Python
null
null
No
No
Define GIL.
Python
null
null
null
null
Define Inheritance in Python
Python
null
null
No
No
Define iterators in Python?
Python
null
null
No
No
Define joint probability and marginal probability.
Data Science
Goldman Sachs
null
null
null
Define Lift, KPI, Robustness, Model Fitting, Design of Experiments and the 80/20 Rule?
Data Science
null
null
null
null
Define modules in Python?
Python
null
null
No
No
define neural networks and its types
Data Science
Intel
null
null
null
Define NPV. Where is it used?
Data Analytics
Glider
2,022
null
null
Define object in Python?
Python
null
null
No
No
Define package in Python?
Python
null
null
No
No
Define pandas dataframe.
Python
null
null
null
null
Define pickling and unpickling in Python?
Python
null
null
No
No
Define PIP.
General
null
null
null
null
Define Precision and Recall.
Machine Learning
null
null
null
null
Define Precision and Recall.
Machine Learning
null
null
null
null
Define PYTHON PATH?
Python
null
null
No
No
Define Quality Assurance and Six Sigma.
Data Science
null
null
null
null
Define right-skewed and left-skewed distributions. Where would you find the mean and median in these distributions compared to a normal distribution?
Data Science
SAP
null
null
null
Define self in Python?
Python
null
null
No
No
Define sequence.
SQL
null
null
null
null
Define slicing in Python?
Python
null
null
No
No