passage 0.2.4

A little library for text analysis with RNNs.

A little library for text analysis with RNNs.

Warning: very alpha, work in progress.

Install

via Github (version under active development)

git clone http://github.com/IndicoDataSolutions/passage.git
python setup.py develop

or via pip

sudo pip install passage

Example

Using Passage to do binary classification of text, this example:

• Tokenizes some training text, converting it to a format Passage can use.

• Defines the model’s structure as a list of layers.

• Creates the model with that structure and a cost to be optimized.

• Trains the model for one iteration over the training text.

• Uses the model and tokenizer to predict on new text.

• Saves and loads the model.

from passage.preprocessing import Tokenizer
from passage.layers import Embedding, GatedRecurrent, Dense
from passage.models import RNN
from passage.utils import save, load

tokenizer = Tokenizer()
train_tokens = tokenizer.fit_transform(train_text)

layers = [
    Embedding(size=128, n_features=tokenizer.n_features),
    GatedRecurrent(size=128),
    Dense(size=1, activation='sigmoid')
]

model = RNN(layers=layers, cost='BinaryCrossEntropy')
model.fit(train_tokens, train_labels)

model.predict(tokenizer.transform(test_text))
save(model, 'save_test.pkl')
model = load('save_test.pkl')

Where:

• train_text is a list of strings [‘hello world’, ‘foo bar’]

• train_labels is a list of labels [0, 1]

• test_text is another list of strings

Datasets

Without sizeable datasets RNNs have difficulty achieving results better than traditional sparse linear models. Below are a few datasets that are appropriately sized, useful for experimentation. Hopefully this list will grow over time, please feel free to propose new datasets for inclusion through either an issue or a pull request.

**Note**: None of these datasets were created by indico, not should their inclusion here indicate any kind of endorsement

Blogger Dataset: http://www.cs.biu.ac.il/~koppel/blogs/blogs.zip (Age and gender data)