The Summarizer environment is a domain for text generation in the context of summarization.

Generate summaries by extracting sentences from reference documents.

1. Download CNN-DailyMail finished file binaries;
2. Use gym_summarizer.utils.BatchCNNDMLoader to precompute embeddings (WARNING: precomputing will take a very long time and the resulting files will occupy >30Gb of storage);
3. Use run_experiment.py and evaluate_model.py to train agents and evaluate them.