Assignment 1.4: Do Titanic Demo using Orange

In this assignment, you will be using a visual tool called Orange to replicate the Titanic classification demo.

Install Orange 3

1. First, you will install Orange 3 within Anaconda Navigator (instructions).
2. If you run into issues or the installation just takes too long (>30mins), you may also install Orange 3 independently from Anaconda by downloading it here.
3. For help with Orange, you can either look at videos on YouTube, the official Orange site, or this article/guide recommended originally by a student.

Go through Titanic demo notebook

1. Open the Titanic Demo Notebook (Colab) link
   • It will open a Jupyter notebook environment hosted by Google, called "Colab". Run it just as you would any other Jupyter notebook.
2. Go through the notebook, noting each step and what it does (required as part of your submission).
3. After you have an understanding of the steps in the notebook, open Orange and start with a blank project (by default, this is what you get).

Replicate Titanic demo notebook in Orange 3

Your task is to replicate the Titanic demo notebook steps in Orange's visual environment.

1. Start by dropping a CSV File Import widget onto the work area and configuring it to open the Titanic CSV file (download here).
   • You may alternatively use the built-in Datasets widget to load the Titanic data, noting the following differences:
     1. instead of a 'class' column, it has a 'status' column--which is the same as class, except it includes 'crew' as a category
     2. contains more than twice as many rows (~2200)
2. Use widgets that correspond to steps in the notebook code, connecting them as you go. 

• Hints:
  1. You will need to designate the columns in the data table as inputs and output/target--unless you use the built-in datasets widget to select the Titanic dataset.
  2. For the training step, you may use Orange's random forest widget or neural network widget (which uses the multilayer perception algorithm). Leave the defaults as is for any hyperparameters--such as number of trees or nodes.
• If you need some help getting started:
  • Open up one or more of the included Example Workflows (available from startup dialog OR in the Help menu > "Example Workflows"). Examine how these are constructed.
  • You may also reference Orange's Getting Started page for more details.
  • The full documentation can be found here.

You will submit a SINGLE Word document with the following contents:

1. 1. explanations of the steps in the Titanic notebook--with a sentence for each step describing how it works in your own words
   2. a single screenshot (pasted into document) that shows your work surface in Orange after doing as much as you can to replicate the Titanic demo in Orange

Just do your best--demonstrate a good faith effort. You do not have to successfully complete this assignment in order to get full credit