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CMSC 462 – Introduction to Data Science Assignment 5

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CMSC 462 – Introduction to Data Science
Assignment 5
Total Points – 25
1. You will use MongoDB for this Assignment. First, download MongoDB in your computer.
Then do the following.
2. Write code to create a collection ‘myMovies’, and add 5 movies to the database that
you last watched, having property: name, genre, rating.
3. Write code to return
a. all movies in the database,
b. find one movie by name
c. find top 3 high rated movies
4. Write code to add review to 2 of the movies as ‘review’ property, and sets / changes
rating attributes of one of the movies from other 3.
5. Please download movies, tags and ratings files. Write a program to read the given 3
different csv files (movies, ratings, tags), and insert all the records into 3 different
collections (movies, ratings, tags).
6. For the following questions, you must use Aggregation Pipeline. If you use any other
method no credit will be given.
a. Develop code to find number of movies released per year.
b. Develop code to find number of movies per genre.
c. Develop code to find number of movies per rating.
d. Develop code to find number of movies tagged.
For doing this assignment, it may be easier to setup a virtual environment –
(https://pypi.org/project/virtualenv/)
Use PyMongo – https://pypi.org/project/pymongo/
Links:
• https://docs.mongodb.com/manual/administration/install-community/
• https://docs.mongodb.com/manual/installation/
• https://docs.mongodb.com/drivers/pymongo/
• https://www.mongodb.com/developer/quickstart/python-quickstart-aggregation/
• https://www.analyticsvidhya.com/blog/2020/08/how-to-create-aggregation-pipelinesin-a-mongodb-database-using-pymongo/
• https://www.mongodb.com/docs/manual/core/aggregation-pipeline/
• https://www.mongodb.com/basics/aggregation-pipeline
• https://www.mongodb.com/docs/v6.0/core/aggregation-pipeline/
• https://www.mongodb.com/docs/manual/reference/operator/aggregation/count/

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