language:
  - en
license: apache-2.0
tags:
  - generated_from_trainer
datasets:
  - pszemraj/govreport-summarization-8192
metrics:
  - rouge
pipeline_tag: summarization
base_model: allenai/led-base-16384
model-index:
  - name: led-base-16384-finetuned-govreport
    results:
      - task:
          type: summarization
          name: Summarization
        dataset:
          name: pszemraj/govreport-summarization-8192
          type: pszemraj/govreport-summarization-8192
          config: split
          split: validation
          args: split
        metrics:
          - type: rouge
            value: 50.3574
            name: ROUGE-1
          - type: rouge
            value: 20.0448
            name: ROUGE-2
          - type: rouge
            value: 22.2156
            name: ROUGE-L
          - type: rouge
            value: 22.2156
            name: ROUGE-LSUM
      - task:
          type: summarization
          name: Summarization
        dataset:
          name: pszemraj/govreport-summarization-8192
          type: pszemraj/govreport-summarization-8192
          config: split
          split: test
          args: split
        metrics:
          - type: rouge
            value: 52.6378
            name: ROUGE-1
          - type: rouge
            value: 22.213
            name: ROUGE-2
          - type: rouge
            value: 23.5898
            name: ROUGE-L
          - type: rouge
            value: 23.5898
            name: ROUGE-LSUM
led-base-16384-finetuned-govreport
This model is a fine-tuned version of allenai/led-base-16384 on the pszemraj/govreport-summarization-8192 dataset. It achieves the following results on the evaluation set:
- Loss: 1.2887
 
The rouge metrics calculations were processed later down the line (final notebook can be found HERE).
It achieved the following results on the validation set:
- Rouge1: 50.3574
 - Rouge2: 20.0448
 - Rougel: 22.2156
 - Rougelsum: 22.2156
 
It achieved the following results on the test set:
- Rouge1: 52.6378
 - Rouge2: 22.2130
 - Rougel: 23.5898
 - Rougelsum: 23.5898
 
Model description
As described in Longformer: The Long-Document Transformer by Iz Beltagy, Matthew E. Peters, Arman Cohan, Allenai's Longformer Encoder-Decoder (LED) was initialized from bart-base since both models share the exact same architecture. To be able to process 16K tokens, bart-base's position embedding matrix was simply copied 16 times.
This model is especially interesting for long-range summarization and question answering.
Intended uses & limitations
pszemraj/govreport-summarization-8192 is a pre-processed version of the dataset ccdv/govreport-summarization, which is a dataset for summarization of long documents adapted from this repository and this paper.
The Allenai's LED model was fine-tuned to this dataset, allowing the summarization of documents up to 16384 tokens.
Training procedure
Training hyperparameters
The following hyperparameters were used during training:
- learning_rate: 5e-05
 - train_batch_size: 1
 - eval_batch_size: 1
 - seed: 42
 - gradient_accumulation_steps: 8
 - total_train_batch_size: 8
 - optimizer: Adam with betas=(0.9,0.999) and epsilon=1e-08
 - lr_scheduler_type: linear
 - num_epochs: 2
 
Training results
| Training Loss | Epoch | Step | Validation Loss | 
|---|---|---|---|
| 1.1492 | 0.24 | 250 | 1.4233 | 
| 1.0077 | 0.49 | 500 | 1.3813 | 
| 1.0069 | 0.73 | 750 | 1.3499 | 
| 0.9639 | 0.98 | 1000 | 1.3216 | 
| 0.7996 | 1.22 | 1250 | 1.3172 | 
| 0.9395 | 1.46 | 1500 | 1.3003 | 
| 0.913 | 1.71 | 1750 | 1.2919 | 
| 0.8843 | 1.95 | 2000 | 1.2887 | 
Framework versions
- Transformers 4.30.2
 - Pytorch 2.0.0
 - Datasets 2.1.0
 - Tokenizers 0.13.3