Data mining | Data mining | Bloomsburg University of Pennsylvania


You are just hired as a data analyst (Note1) in the newly formed analytics department of RiiiD, which is a leading AI startup company specializing in providing learning resources and adaptive practices to English learners in South Korea. On the first day of your job, you are invited to attend a meeting with the business operation team in which you are briefed on the company’s platform and then you are handed over a dataset (‘EdNet’)  that was collected from this platform over the last two years from over 700K users . This dataset logged detailed user activities while they were interacting with systems.  Intrigued by the sheer amount of data collected, your manager is interested in how the analytics department can help to support the company’s missions to reimagine the learner’s experience using AI/ML/data analytics techniques. You are asked to spend some time to look into the data and prepare a brief to your manager. Specifically, your manager is looking for answers to the following questions. 


  1. (25      points) Who are the users?  To answer this question,      you will need to compile a user profile table (Table 1) with information      about users including
    1. Overall       practice volume and performance (e.g. # of questions answered, % of       questions answered correctly)
    2. Learning       activity (e.g. # lectures watched, # explanation read)
    3. Add       three additional metrics you would like to compute to describe users

Create a few plots to illustrate the information in the tables. Feel free to choose the appropriate type of plots you think is appropriate. 


2. (25 points) What are the questions/items? To answer this question, you will need to compile a question profile table (Table 2)  with information including

a. Question ID

b. Question Type

c. Number of times being practiced

d. Number of times answered correctly

Create a few plots to illustrate the information in the tables. Feel free to choose the appropriate type of plots you think is appropriate. 


3. (10 points) Design a modified metric of “accuracy” to fairly describe users’ ability by taking into account the difficulty level as derived from Table 2. Describe the procedure to compute the metrics.  Be sure to be specific so that interns can use your pseudo code to implement the metrics without much trouble. 

BONUS (10 points), implement the proposed metrics and plot a histogram of the metrics across all users (or subset of users of your choices). 


4. (30 points) Pick a user with a reasonable amount of activity (you will define the “reasonableness” and specify the selection criteria) and create a dashboard that consists of a series of plots to tell a story of this user’s activity patterns. For inspiration, you may look at the user dashboard for fitness tracker such as Fitbit. 


5. (10 points) Propose two tasks for your interns to work on. The first task is of unsupervised/descriptive type and a second one is of supervised/predictive task. Please provide clear specification of the tasks so that your interns can start to work right away. You should try to propose tasks that are not attempted in the existing work with this dataset. 

BONUS (10 points): propose a reinforcement learning task 


  • A      google slide deck summarizing the above findings in the format of plots or      tables or other contents as requested by your manager. Please label      clearly on the slide which question you are answering. There are no      lower/upper limits of the number of slides. Always keep the message      concise and effective and keep your audience in mind. In this case, it is      your manager. Please change the slides permission to editable, we will      make comments on your slides. 
  • Two      summary tables, Table 1 and 2
  • Please      deposit the above items into your own google folder you are asked to      create, under this folder, create a folder named homework1. Please deposit      the files there. 
  • Please      don’t deposit your finalized product earlier than October 4th. After you      finish, please post a link to your homework google folder on blackboard      submission. 

Dataset and Background Readings:

Please download the dataset from the following link. For this homework, you may only use KT4 (uncompressed size 6.4GB). But you may need to download other small lookup tables for the purpose of this assignment. Note: it may take a few hours to download/unzip the data files, please make sure you plan ahead

Please refer to this paper for details of dataset (mainly Section 1 and 2, up to page 7)

Software and Tools

You are free to use any software tools you feel comfortable with, which include but are not limited to Python, R, WEKA or Tableau. 

Calculate Your Essay Price
(550 words)

Approximate price: $22

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
The price is based on these factors:
Academic level
Number of pages
Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more

Order your essay today and save 10% with the coupon code: best10