1. (100 points) (Counting Tweets)
Input Datasets: Tweets (tweets.json):
user
geo
tweet
Bob
Atlanta
It is a sunny day!
Susan
Athens
We have a football game today :)
David
Atlanta
Today is cold.
Lisa
Auburn
I love Auburn University
Ben
Birmingham
I will go to Atlanta today!
Paul
San Francisco
We watch a movie today!
Smith
San Diego
It is hot today. Summer comes.
Ethan
Log Angeles
Oscar ceremony is wonderful!
Emma
Log Angeles
I love Oscar ceremony!
Rolando
Orlando
I will go to the beach!
Mia
Miami
Sunny Day!
City and State lookup table (cityStateMap.json):
city
state
Atlanta
Georgia
Athens
Georgia
Miami
Florida
Orlando
Florida
Birmingham
Alabama
Auburn
Alabama
Log Angeles
California
San Francisco
California
San Diego
California
Problem and Output Data:
We want to count the number of tweets published in each state. The following table shows the desired results.
state
count
Georgia
3
Florida
2
Alabama
2
California
4
Implementation:
Design and implement a PySpark program to solve the problem. We did not provide any template python file this time. You may want to create one python file from scratch.
You are required to use Spark Dataframe to implement this function.
Report:
Please write a report illustrating your experiments. You need to explain your basic idea about how to count tweets in each state. You may add comments to the source code such that the source code can be read and understood by the graders.
In the report, you should include the answers to the following questions.
1) Explanation of the source code
2) Experimental Results
2.1) Screenshots of the output. Since we plan to use Dataframe in Spark, it is easy to type in “DF.show()” to visualize the table in the terminal. Please do so and take a screenshot of the output in the terminal. The screenshot “output.PNG” of the output in my VM is given. You can use it to verify your outputs.
2.2) Explain your results. Does your implementation give the right answer?
Submission Materials:
a) Your report
b) Source code (.py file)
c) The screenshot of the outputs in the terminal
