Kurt Shuster

[BART] Fail successfully when `fairseq` is not installed

8

**Bug description** When using BART models, or any models that require BART (e.g. some of the [hallucination](https://parl.ai/projects/hallucination/) or [BB2](https://parl.ai/projects/blenderbot2/), several folks have posted that ParlAI fails with `Could not find...

[Test] Poly-encoder Pre-trained Model test

1

We need to add a test for the pre-trained poly-encoders

Autoformat

1

**Patch description** Applying several warnings after running `bash autoformat.sh -a` on the codebase

MemNN broken interactive

1

**Bug description** The MemNN breaks during interactive, when you use a word that is out of dictionary (for the location). **Reproduction steps** Run the following commands *from the Quick-Start*, then...

**Patch description** [Factual nucleus](https://arxiv.org/abs/2206.04624) is a decoding method that decays the nucleus sampling `p` value over time according to a constant factor `lambda_decay`. The `p` value resets when encountering a...

**Patch description** Loading the ngram blocking on GPU not only fails for several builds, but can also be quite time consuming; I'm shifting to a lazy instantiation, such that loading...

Repetition Penalties, Factual Nucleus

2

## Patch Description This patch adds the following to sequence generation: ### Repetition Penalties Inspired by https://beta.openai.com/docs/api-reference/engines/retrieve: ``` mu[j] -> mu[j] - c[j] * alpha_frequency - float(c[j] > 0) *...

[BFloat16] Support bf16 inference

1

**Patch Description** Describe your changes **Testing steps** Describe how you tested your changes