"What is your experience with user testing?
All products/feature I have worked on B2C space is primarily testing users for a hypothesis.
Why B2C? Because you have millions of users who you have not met and also impossible to meet. Hence we formulate hypotheses and evaluate users' behaviour based on our goal.
For example, one of the last features I worked on tried to answer the question "Will users who pay their bill using Net Banking use other payment methods if it is not shown to them?"
Henc"
Aravinth K. - "What is your experience with user testing?
All products/feature I have worked on B2C space is primarily testing users for a hypothesis.
Why B2C? Because you have millions of users who you have not met and also impossible to meet. Hence we formulate hypotheses and evaluate users' behaviour based on our goal.
For example, one of the last features I worked on tried to answer the question "Will users who pay their bill using Net Banking use other payment methods if it is not shown to them?"
Henc"See full answer
"Effective loss functions for computer vision models vary depending on the specific task, some commonly used loss functions for different tasks:
Classification
Cross-Entropy Loss:Used for multi-class classification tasks.
Measures the difference between the predicted probability distribution and the true distribution.
Binary Cross-Entropy Loss:Used for binary classification tasks.
Evaluates the performance of a model by comparing predicted probabilities to the true binary labe"
Shibin P. - "Effective loss functions for computer vision models vary depending on the specific task, some commonly used loss functions for different tasks:
Classification
Cross-Entropy Loss:Used for multi-class classification tasks.
Measures the difference between the predicted probability distribution and the true distribution.
Binary Cross-Entropy Loss:Used for binary classification tasks.
Evaluates the performance of a model by comparing predicted probabilities to the true binary labe"See full answer
"The critical data to forecast projects with greater accuracy are Remaining Estimated work, Customer needed date, Cost of Delay."
VictorSage - "The critical data to forecast projects with greater accuracy are Remaining Estimated work, Customer needed date, Cost of Delay."See full answer
Behavioral
Analytical
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"This is one of the core behavioral questions that you should expect to cover in any interview. In particular, it asks you to justify why you want to work at a specific company that you've applied for. There's no right answer for this, however we do recommend you list at least three distinct reasons.
Here's an example of what you might say:
> That's a great question. There are three main reasons why I want to work at Twitch:Building a product I use
> Working in marketplaces
> Mentorship
> I'll go"
Exponent - "This is one of the core behavioral questions that you should expect to cover in any interview. In particular, it asks you to justify why you want to work at a specific company that you've applied for. There's no right answer for this, however we do recommend you list at least three distinct reasons.
Here's an example of what you might say:
> That's a great question. There are three main reasons why I want to work at Twitch:Building a product I use
> Working in marketplaces
> Mentorship
> I'll go"See full answer
"I will talk about the carwash landscape here a bit.
How futuristic do you want the solution to be - flying cars kind of futuristic or something that I can use even now ?
What do you mean by a car wash - Is it a physical location where I take my car to OR is it something that I can install at home ?
There are two sides to a car wash set up - the car wash company and the user - I am going to assume that we are building this solution for the user.
Is there an specific goal in mind or I can cho"
Ramesh T. - "I will talk about the carwash landscape here a bit.
How futuristic do you want the solution to be - flying cars kind of futuristic or something that I can use even now ?
What do you mean by a car wash - Is it a physical location where I take my car to OR is it something that I can install at home ?
There are two sides to a car wash set up - the car wash company and the user - I am going to assume that we are building this solution for the user.
Is there an specific goal in mind or I can cho"See full answer
"Assumptions: timeline will be open, both platforms, target is globally. and specifically working with Nike App for shopping
Company goal: Goal of Nike is to "Just Do It" as well as anybody can be an athlete, *Goal is open, so the purpose of the app is to allow users to see new items at hand and shop Nike process,
Target Segment: 1. Frequent Users 2 First Time users. a. First time users downloading app. 2b. User who have already purchased an order and use the app to see shopping history.
User J"
Anonymous Giraffe - "Assumptions: timeline will be open, both platforms, target is globally. and specifically working with Nike App for shopping
Company goal: Goal of Nike is to "Just Do It" as well as anybody can be an athlete, *Goal is open, so the purpose of the app is to allow users to see new items at hand and shop Nike process,
Target Segment: 1. Frequent Users 2 First Time users. a. First time users downloading app. 2b. User who have already purchased an order and use the app to see shopping history.
User J"See full answer
"Assumptions
I am going to assume that users know how to send smell through the phone
I am also going to assume this is only available between phone-to-phone and not server-to-phone
Clarifying questions
What are the goals? Customer retention or New market/user acquisition?
I would like to pick New Market/User acquisition because this is a new technology that can be used in new use cases in new verticals.
Metrics
We will measure number of users who used this new technology
We will measure"
R - "Assumptions
I am going to assume that users know how to send smell through the phone
I am also going to assume this is only available between phone-to-phone and not server-to-phone
Clarifying questions
What are the goals? Customer retention or New market/user acquisition?
I would like to pick New Market/User acquisition because this is a new technology that can be used in new use cases in new verticals.
Metrics
We will measure number of users who used this new technology
We will measure"See full answer
"Clarify:
Can I assume I’m a PM at Amazon for the wishlist feature?
What is the wishlist feature?You can create a wishlist for yourself of items you want to buy later
You can create a wishlist for other people you are shopping for (ex. Christmas, birthdays, etc)
You can share this wishlist with others
How are we defining “improvement”? (I’m assuming I’m responsible for coming up with the definition)
Why do we want to improve the wishlist feature in particular? (Again, I’m responsible"
Kay T. - "Clarify:
Can I assume I’m a PM at Amazon for the wishlist feature?
What is the wishlist feature?You can create a wishlist for yourself of items you want to buy later
You can create a wishlist for other people you are shopping for (ex. Christmas, birthdays, etc)
You can share this wishlist with others
How are we defining “improvement”? (I’m assuming I’m responsible for coming up with the definition)
Why do we want to improve the wishlist feature in particular? (Again, I’m responsible"See full answer
"Metrics which Youtube Consider before building a recommender system
Number of likes on a video by user
The watch time of a video by the user
The video disklied by the user
The video share by a user
The video skipped or churn with 20-30 seconds.
Depending on this Youtube build a recommender system. The video suggestion feature in youtube works based on the recommender system. It may use a hybrid of batch prediction and online prediction. So depending on the above metrics, the youtube p"
Anonymous Muskox - "Metrics which Youtube Consider before building a recommender system
Number of likes on a video by user
The watch time of a video by the user
The video disklied by the user
The video share by a user
The video skipped or churn with 20-30 seconds.
Depending on this Youtube build a recommender system. The video suggestion feature in youtube works based on the recommender system. It may use a hybrid of batch prediction and online prediction. So depending on the above metrics, the youtube p"See full answer
"This is a Technical question. It tests your ability to understand high level technical concepts. Even though your job won't have any coding involved, you'll still need to understand these concepts. Being able to cover all these topics with clarity communicates confidence in your interviewer.
Unfortunately, there's no formula for technical questions, but some general tips are:
Use analogies when you can
Break your solution into clear, bite-size steps
Don't be afraid to use examples to b"
Exponent - "This is a Technical question. It tests your ability to understand high level technical concepts. Even though your job won't have any coding involved, you'll still need to understand these concepts. Being able to cover all these topics with clarity communicates confidence in your interviewer.
Unfortunately, there's no formula for technical questions, but some general tips are:
Use analogies when you can
Break your solution into clear, bite-size steps
Don't be afraid to use examples to b"See full answer
"This is a Fermi problem — an estimation or approximation problem with limited information and back-of-the-envelope calculations. There's no right answer: interviewers want to understand how you think and how well you can explain your reasoning, rather than what you already know.
Recall the formula for Fermi problems:
Ask clarifying questions
Catalog what you know
Make equation(s)
Think about edge cases to add to equation
**Breakdown components of your equat"
Exponent - "This is a Fermi problem — an estimation or approximation problem with limited information and back-of-the-envelope calculations. There's no right answer: interviewers want to understand how you think and how well you can explain your reasoning, rather than what you already know.
Recall the formula for Fermi problems:
Ask clarifying questions
Catalog what you know
Make equation(s)
Think about edge cases to add to equation
**Breakdown components of your equat"See full answer