INFS7450社会介质分析

INFS7450 Social Media Analytics
Project 1 – Fast Computation of User Centrality Measures
Semester 1, 2023
Marks: 15 marks (15%)
Submission Due: 20 Apr 2023 16:00 (Brisbane Time)
Deliverables: See deliverables part
How to submit: Electronic submission via Blackboard
Goal: This project aims to implement a number of efficient algorithms to compute various
centrality measures for user nodes such as PageRank and Betweenness. Students are required to
finish this project individually.
Dataset: In this project, you will be working with publicly available Facebook social network data.
The Facebook data has been anonymized by replacing the Facebook-internal ids for each user with
a new value. The data contains 4039 nodes, and 88234 edges in total. Each line of the data
represents an undirected link starting from one node to another.
The dataset is available from UQ blackboard. See /Assessment/INFS7450 Project One.
Tasks:
1. Calculate the Betweenness Centrality for nodes in the Facebook dataset. (8 marks)
Overview: write code to load the Facebook social network data and construct an undirected
and unweighted graph. Based on the constructed graph, you are required to write a program
to calculate the betweenness centralities for the graph vertices.
Input: The provided Facebook social network data.
Output: The top-10 nodes with the highest betweenness centralities.
2. Calculate PageRank Centrality for nodes in the Facebook dataset. (7 marks)
Overview: write code to load the Facebook social network data and construct an undirected
and unweighted graph. Based on the constructed graph, you are required to write a program
to calculate the PageRank (with =0.85, =0.15) centralities for the graph vertices.
Input: The provided Facebook social network data.
Output: The top-10 nodes with the highest PageRank centralities.
Requirements:
1. You may use third-party libraries, such as NetworkX to read, load and manipulate the
Facebook network dataset. However, you must write your own code to implement the
function of node centrality calculation rather than using the third-part or built-in
functions. (You can use any functions in NetworkX other than the functions for centrality
calculation.)
2. You are not allowed to use any generative models such as ChatGPT.
3. You can refer to the codes provided in the tutorial, but are not allowed to directly reuse or
copy them.
4. You are not allowed to look at the code of any other student. All submitted codes and
reports will be subject to electronic plagiarism.
Programming Languages:
Python and NetworkX are recommended. However, you have your own choices of
preferred programming languages including, but not limited to, Python, MATLAB, Java,
C, C++, etc.
Deliverables (!!VERY IMPORTANT):
1. A report (.pdf). See the given appendix for an example template.
Submit your report in the PDF format, not in the word format!
2. A source code file. For python users, organize your code in this way:
Figure 1. the example of your submitted source code
If you are using other programming languages, please organize your code in one file,
and let me know how to run your code only via a simple click.
Only submit the source code in one file, don’t submit the data file.
3. A result text file. The file must contain two lines of results. The first line is the top-10
nodes with the highest betweenness centralities. The second line is the top-10 nodes with
the highest PageRank centralities. (each node id in each line should be separated by a
space.) See the following picture as an example.
Figure 2. the example format of the results
Don’t change the format! Your result file will be checked and marked via a script. If
you change the format, your submitted results will not be accepted. Keep in mind
the first line is the results of task 1 and the second line is the results of the task.
Don’t mix the order.
Don’t use other delimiters, only use a space.
Only report the top-10 node ids, don’t fill in with node centrality scores!
4. Name all the submitted files by your student ID. For example, 41234567.py for the
source code, 41234567.txt for your submitted results, and 41234567.pdf for your report.
5. Submit one archive file with your student number as the file name (e.g.12345678.zip)
with all the files mentioned above.
For example:
A student (with id 1234567) can submit his project as follows:
1234567.zip/
-------1234567.py
-------1234567.txt
-------1234567.pdf
Any submitted project which doesn’t follow the above guidelines will be desk
rejected without marking, which means you will get zero marks for the
corresponding parts.
Marking criteria (Total marks: 15):
• Task 1: 8 marks = 3 marks (code) + 3 marks (results) + 2 marks (report)
• Task 2: 7 marks = 2 marks (code) + 3 marks (results) + 2 marks (report)
• Your results should be reproducible and your codes should be readable. If your codes
cannot be executed or generate the results as reported, the corresponding marks for the
code and results will be deducted.
• We will evaluate your submitted results by calculating the Jaccard Similarity between
the submitted results and the ground truth. That means your mark for each task will be
calculated by:
Result Mark = Jaccard Similarity (Submitted Results, Ground Truth) * 3
Kaggle:
We will be deploying our projects on the Kaggle platform. Students are encouraged to
upload their results to Kaggle and compete with other classmates.
You can join the Kaggle competition via the below links:
https://www.kaggle.com/t/07e5043312114a88a84865a8e27f9563
Please note that the scores on this platform will not be considered in the final grading.
The final score will still be determined by the results you upload to Blackboard.

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