Notebooks, scrapers, corpora, and utilities built and maintained Quill.org.

This repo contains all of our data for Quill.org's machine learning models. This includes both grammar models that will be used across multiple products, and the algorthims for Quill Comprehension, a product that builds critical thinking skills. Quill Comprehension uses a topic classification algorthim to identify the main pieces of evidence in a student's writing in order to serve feedback that pushes the student to use more precise evidence.

To understand the grading process for Quill Comprehension, please click on the link below to see a document that explains the steps of the grading process. To process this data, Quill first uses a script that helps us extract features from the student's writing for both the data labelling process and the machine learning models. This script incorporates AllenNLP. You can find an explanation of what the script does, and why each step is necessary. Find the document here.

.
├── data            # data we use for our experiments
    ├── interim     # preprocessed data
    ├── raw         # original, unprocessed data
    └── validated   # validated gold standard data for evaluation
│
├── demo            # D3 visualization that demonstrates NLP capabilities
├── experiments     # the json configuration files for our experiments
├── genmodel
├── models          # saved models for classification and other NLP tasks
├── notebooks       # Jupyter notebooks for data exploration & simple experiments
├── quillnlp        # the main package with the NLP code, including the dataset readers,
│                   # models and predictors for AllenNLP
├── scrapers        # data collection tools
├── scripts         # scripts for data processing, etc.
├── tests           # unit and more high-level tests
├── utils           # useful tools and scripts including document parsing
├── LICENSE
├── README.md       # this file
└── __init__.py

$ # ensure you are in the top level of the project before running these commands
$
$ source activate <YOUR CONDA ENV>
$ conda install -c conda-forge nbstripout
$ nbstripout --install
$ nbstripout --install --attributes .gitattributes

Running the above commands will ensure generated output from the notebooks is not versioned, but that regular code changes will still be reflected.

Note: this means that switching branches could mean changes to notebook state. Be aware of this and don't be alarmed.

sh bootstrap.sh

This will install python and all of the required dependencies, mostly within a virtual environment. This script should be idempotent and can be run multiple times without messing up your environment (It will update your dependencies though).

Experiments follow the general pattern:

1. Start Virtual Environment.
2. Run Experiments/Training.
3. Close Virtual Environment.

Start a virtual environment with:

source env/bin/activate

Close it with:

deactivate

Note, if you are doing multiple experiments, you can open the environment, do a bunch of stuff, and then close the environment.

1. Put all labelled data in a file. This should be a tab-separated file with two columns. The first column contains the sentence (prompt and response), the second column contains the label. Save this file in the directory data/raw

2. Process the file with the script create_train_and_test_data:

From the directory root:

source env/bin/activate

python3 scripts/create_train_and_test_data.py --input_file data/raw/example.tsv

This will create three ndjson files in the data/interim directory: a train file with the training data, a dev file with the development data and a test file with the test data.

python3 scripts/train_baseline.py --train data/interim/example_train.ndjson --test data/interim/example_test.ndjson

This will train a simple classifier. After evaluation, it prints out an accuracy and performance per label.

Download the Glove 6B 300 data set (800MB) from this website

Here is the direct 800 MB download link

Create a configuration file in the experiments directory. Start from example.json, where you fill in the paths to your train, dev (validation) and test files. If your machine does not have a GPU, set cuda_device (towards the bottom) to -1. Otherwise, set it to 0. Since our experiments are small, they can be run without a GPU. Also, update the example.json to point to the glove data set on your laptop.

allennlp train experiments/example.json -s /tmp/example --include-package quillnlp

Evaluate the AllenNLP model. We have our own script for this, evaluate_topic_classification, which takes as first argument the test file, and as second argument the directory where the model was saved:

python3 -m scripts.evaluate_topic_classification data/interim/example_test.ndjson /tmp/example/

python3 scripts/sentence_encoder_tests.py --train data/interim/example_train.ndjson --dev data/interim/example_dev.ndjson --test data/interim/example_test.ndjson --out /tmp/classifier

deactivate