How do I approach Coding & Algorithms interview questions?

Coding & Algorithms questions require understanding of core concepts and practice. PracHub provides solutions with explanations to help you master coding & algorithms interviews.

What difficulty level is this interview question?

This is a Medium difficulty Coding & Algorithms question, commonly asked during Onsite rounds at Shopify.

What role is this question designed for?

This question is commonly asked for Data Scientist candidates at Shopify during technical interviews.

Calculate Jaccard Similarity Score for Two String Lists

Last updated: Mar 29, 2026

Quick Overview

This question evaluates understanding of similarity metrics and competency in comparing string collections, reflecting knowledge of set-theoretic concepts and manipulation of collection data structures used in data processing.

Medium
Shopify
Coding & Algorithms
Data Scientist

Shopify

Aug 4, 2025, 10:55 AM

Data Scientist

Onsite

Coding & Algorithms

Scenario

During pair programming, the interviewer asks you to compare two lists of merchant tags and quantify their similarity.

Question

Implement a Python function that takes two lists of strings and returns their Jaccard similarity score.

Hints

Convert both lists to sets, then compute |A ∩ B| ÷ |A ∪ B|.

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