Causal transformer language models (LMs), such as GPT-3, typically require some form of positional encoding, such as positional embeddings. 
However, we show that LMs without any explicit positional encoding are still competitive with standard models and that this phenomenon is robust across different datasets, model sizes, and sequence lengths.
Probing experiments reveal that such models acquire an implicit notion of absolute positions throughout the network, effectively compensating for the missing information.
We conjecture that causal attention enables the model to infer the number of predecessors that each token can attend to, thereby approximating its absolute position.
Our findings indicate that causal LMs might derive positional awareness not only from the explicit positioning mechanism but also from the effects of the causal mask.

Transformer Language Models without Positional Encodings Still Learn Positional Information

Latent alignment objectives such as CTC and AXE significantly improve non-autoregressive machine translation models. Can they improve autoregressive models as well? We explore the possibility of training autoregressive machine translation models with latent alignment objectives, and observe that, in practice, this approach results in degenerate models. We provide a theoretical explanation for these empirical results, and prove that latent alignment objectives are incompatible with teacher forcing.

Can Latent Alignments Improve Autoregressive Machine Translation?

**Chair:** Dieuwke Hupkes **Organizers:** Jasmijn Bastings, Yonatan Belinkov, Yanai Elazar, Dieuwke Hupkes, Naomi Saphra and Sarah Wiegreffe Please visit our [**website**](https://blackboxnlp.github.io/) for more information and detailed schedule.

**RocketChat channel for this workshop:** https://emnlp2022.rocket.chat/channel/workshop-14-blackboxnlp

W14 (BlackboxNLP) Analysing and interpreting neural networks for NLP

workshop paper

## Welcome to EMNLP 2022!
I am delighted to welcome you to EMNLP 2022! I believe this conference has been complicated beyond any precedent. Over the past year, it’s been thrilling to see the organization team approach each new puzzle with creativity and enthusiasm. We hope that those participating in Abu Dhabi as well as those joining remotely will leave the conference feeling newly inspired by the program and newly connected to our ever-growing community. Following EMNLP 2021 and major NLP conferences since, EMNLP 2022 is “hybrid,” serving both virtual and in-person participants.

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***EMNLP 2022 General Chair***
 
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EMNLP 2022

Welcome!
EMNLP 2022 will take place in Abu Dhabi from December 7th to December 11th, 2022. And it will be held in hybrid mode, both online and offline.

**Session Chair: ** Srini Iyer

8A-Oral: Machine Learning for NLP: Language Modeling and Sequence to Sequence Models

technical paper

2021 Annual Conference of the North American Chapter of the Association for Computational Linguistics.

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Adi Haviv

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Presentations

Transformer Language Models without Positional Encodings Still Learn Positional Information

Can Latent Alignments Improve Autoregressive Machine Translation?

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