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NLP 2022: Homework #1

This is the first homework of the NLP 2022 course at Sapienza University of Rome.

Instructor

Teaching Assistants

  • Andrea Bacciu
  • Andrei Stefan Bejgu
  • Valerio Neri
  • Riccardo Orlando
  • Alessandro Scirè
  • Simone Tedeschi

Course Info

Requirements

  • Ubuntu distribution
    • Either 21.10 or the current LTS (20.04) are perfectly fine
    • If you do not have it installed, please use a virtual machine (or install it as your secondary OS). Plenty of tutorials online for this part
  • conda, a package and environment management system particularly used for Python in the ML community

Notes

Unless otherwise stated, all commands here are expected to be run from the root directory of this project

Setup Environment

As mentioned in the slides, differently from previous years, this year we will be using Docker to remove any issue pertaining your code runnability. If test.sh runs on your machine (and you do not edit any uneditable file), it will run on ours as well; we cannot stress enough this point.

Please note that, if it turns out it does not run on our side, and yet you claim it run on yours, the only explanation would be that you edited restricted files, messing up with the environment reproducibility: regardless of whether or not your code actually runs on your machine, if it does not run on ours, you will be failed automatically. Only edit the allowed files.

To run test.sh, we need to perform two additional steps:

  • Install Docker
  • Setup a client

For those interested, test.sh essentially setups a server exposing your model through a REST Api and then queries this server, evaluating your model.

Install Docker

curl -fsSL get.docker.com -o get-docker.sh
sudo sh get-docker.sh
rm get-docker.sh
sudo usermod -aG docker $USER

Unfortunately, for the latter command to have effect, you need to logout and re-login. Do it before proceeding. For those who might be unsure what logout means, simply reboot your Ubuntu OS.

Setup Client

Your model will be exposed through a REST server. In order to call it, we need a client. The client has already been written (the evaluation script) but it needs some dependecies to run. We will be using conda to create the environment for this client.

conda create -n nlp2022-hw1 python=3.9
conda activate nlp2022-hw1
pip install -r requirements.txt

Run

test.sh is a simple bash script. To run it:

conda activate nlp2022-hw1
bash test.sh data/dev.tsv

Actually, you can replace data/dev.tsv to point to a different file, as far as the target file has the same format.

If you hadn't changed hw1/stud/model.py yet when you run test.sh, the scores you just saw describe how a random baseline behaves. To have test.sh evaluate your model, follow the instructions in the slide.