If training two boosted trees models for new and old users will give different results then training one model on all users and which is better approach.
Staff Data Scientist Interview Questions
413 staff data scientist interview questions shared by candidates
What do you feel about our group?
Describe some statistical parameters that’s used in experimental design
Why AUPRC had been not improved but AUCROC had been improved when you made the change?
What would be your solution in the following problem description? - You need to predict how much revenue a vendor gets for a given budget.
Details on the Onsite round: 1. They call it Craft Presentation. In reality you will be given a data science problem to model. --Instructions on data science problem (15 minutes) --Work on the data science problem (60 minutes). You can use anything to code. Personally I used notebook. 1 hour to complete everything from data cleaning to result visualization. --Presentation : ----Your personal intro & 1 project of yours ----Data science problem: code walk-through ----Q&A about the work 2. Break --Lunch @ cafeteria. Good time to check out their campus and ask questions about work culture and other things. Con: One of your panel interviewer will be taking u out to lunch so you are getting assessed during break time too. 2. Individual interview -- One(or a couple) 1-on-1 rounds. technical/behavioral. I do not remember exactly. --Two 2-on-1 rounds. One technical round and one behavioral.
A case study about a business problem of the company
Wha assay you developed?
How do you feel about your current boss?
What is the mathematical formula of VIF and thresholds that can be used in particular cases.
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