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Coding
a year ago
What strategy would you use to find the point of convergence of two different people in a family tree?
Data Scientist

Hitachi

Onfido

Palo Alto Networks

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a year ago
Analytics Case
a year ago
Characters A, B, C, D are linked such that A is linked to B, A is linked to C, C is linked to D, and B is linked to D. Can these four characters be separated into two sets such that the graph is bipartite?
Data Scientist
Hitachi Logo

Hitachi

Postmates Logo

Postmates

HubSpot Logo

HubSpot

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a year ago
Behavioral
a year ago
I want to know about a time you disagreed with a supervisor.
Data ScientistData Engineering ManagerEngineering ManagerUX Designer
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Hitachi

Pepperfry Logo

Pepperfry

Huawei Logo

Huawei

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a year ago
Behavioral
a year ago
Tell me about a time when your performance rating differed from what you expected.
Data ScientistFull Stack Software EngineerData AnalystData Engineering Manager
Hitachi Logo

Hitachi

Magic Leap Logo

Magic Leap

Proofpoint Logo

Proofpoint

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a year ago
Behavioral
a year ago
I want to know about a project you are really proud of.
Data ScientistTechnical Program ManagerSoftware EngineerProduct Manager
Hitachi Logo

Hitachi

Electronic Arts Logo

Electronic Arts

Dropbox Logo

Dropbox

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a year ago
Behavioral
a year ago
What was the most innovative idea you've ever had?
Data ScientistML Engineering ManagerData Science ManagerData Engineering Manager
Hitachi Logo

Hitachi

SPS Commerce Logo

SPS Commerce

Grover Logo

Grover

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a year ago
ML Knowledge
a year ago
Explain different time series analysis. What are other time series models other than Arima?
Data Scientist
Hitachi Logo

Hitachi

Benchling Logo

Benchling

Broadcom Logo

Broadcom

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a year ago
Behavioral
a year ago
What are the sequential stages of a Data Science project from the beginning to its end?
Data Scientist
Hitachi Logo

Hitachi

Cisco Logo

Cisco

Arm Logo

Arm

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a year ago
Coding
a year ago
Show how you would implement a function to return the root mean squared error for two arrays.
Data ScientistMachine Learning Engineer
Hitachi Logo

Hitachi

Bloomberg Logo

Bloomberg

Wise Logo

Wise

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a year ago
Statistics
a year ago
What is the process for plotting an ROC curve with predicted probabilities and true labels?
Data Scientist
Hitachi Logo

Hitachi

IBM Logo

IBM

OfferUp Logo

OfferUp

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a year ago

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*All interview questions are submitted by recent Hitachi Data Scientist candidates, labelled and categorized by Prepfully, and then published after being verified by Data Scientists at Hitachi.

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