Papers with HRED
The Lower The Simpler: Simplifying Hierarchical Recurrent Models (N19-1)
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| Challenge: | Using a simplified version of GRU, we replace the GRUs at the middle layers of hierarchical recurrent models with Fixed-size Ordinally-Forgetting Encoding (FOFE). |
| Approach: | They propose to make the lower layers simpler than the upper ones to simplify two typical hierarchical recurrent models, namely Hierarchical Recurrent Encoder-Decoder (HRED) and R-NET, whose basic building block is GRU. |
| Outcome: | The proposed models contain less trainable parameters, consume less training time, and achieve slightly better performance than baseline models. |
Hierarchical Transformer for Task Oriented Dialog Systems (2021.naacl-main)
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| Challenge: | Existing models for dialog generation are challenging to train using the standard Seq2Seq models. |
| Approach: | They propose a framework for Hierarchical Transformer Encoders that can be morphed into any hierarchical transformer by using specially designed attention masks and positional encodings. |
| Outcome: | The proposed framework can be morphed into any hierarchical encoder, including HRED and HIBERT like models, by using specially designed attention masks and positional encodings. |