52 - Sequence-to-Sequence Learning as Beam-Search Optimization, with Sam Wiseman

52 - Sequence-to-Sequence Learning as Beam-Search Optimization, with Sam Wiseman

Author: Allen Institute for Artificial Intelligence March 16, 2018 Duration: 23:00
EMNLP 2016 paper by Sam Wiseman and Sasha Rush. In this episode we talk with Sam about a paper from a couple of years ago on bringing back some ideas from structured prediction into neural seq2seq models. We talk about the classic problems in structured prediction of exposure bias, label bias, and locally normalized models, how people used to solve these problems, and how we can apply those solutions to modern neural seq2seq architectures using a technique that Sam and Sasha call Beam Search Optimization. (Note: while we said in the episode that BSO with beam size of 2 is equivalent to a token-level hinge loss, that's not quite accurate; it's close, but there are some subtle differences.) https://www.semanticscholar.org/paper/Sequence-to-Sequence-Learning-as-Beam-Search-Optim-Wiseman-Rush/28703eef8fe505e8bd592ced3ce52a597097b031

While NLP Highlights is currently on hiatus, its archive remains a compelling snapshot of conversations from the front lines of computational linguistics. Produced by the Allen Institute for Artificial Intelligence, this science podcast carved out a space for deep, researcher-led discussions about natural language processing. Each episode functions as an informal seminar, where the people actively designing algorithms and pushing the field forward explain their work in their own words. You'll hear about the nuanced challenges behind making machines understand, generate, and reason with human language, from foundational theories to unexpected applications. The dialogue in this podcast often delves into the "why" behind the research, not just the results, offering clarity on complex topics like machine translation, sentiment analysis, or large language models. It’s a chance to listen as experts articulate their thought processes, debates, and moments of insight, with all the candidness that comes from a conversation between peers. The views shared are personal perspectives from the hosts and their guests, independent of their affiliated institutions. For anyone curious about how machines learn to parse meaning, the archived episodes of NLP Highlights provide a thoughtful and accessible entry point.
Author: Language: English Episodes: 100

NLP Highlights
Podcast Episodes
114 - Behavioral Testing of NLP Models, with Marco Tulio Ribeiro [not-audio_url] [/not-audio_url]

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110 - Natural Questions, with Tom Kwiatkowski and Michael Collins [not-audio_url] [/not-audio_url]

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109 - What Does Your Model Know About Language, with Ellie Pavlick [not-audio_url] [/not-audio_url]

Duration: 46:58
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107 - Multi-Modal Transformers, with Hao Tan and Mohit Bansal [not-audio_url] [/not-audio_url]

Duration: 37:34
In this episode, we invite Hao Tan and Mohit Bansal to talk about multi-modal training of transformers, focusing in particular on their EMNLP 2019 paper that introduced LXMERT, a vision+language transformer. We spend the…
106 - Ethical Considerations In NLP Research, with Emily Bender [not-audio_url] [/not-audio_url]

Duration: 39:18
In this episode, we talked to Emily Bender about the ethical considerations in developing NLP models and putting them in production. Emily cited specific examples of ethical issues, and talked about the kinds of potentia…
105 - Question Generation, with Sudha Rao [not-audio_url] [/not-audio_url]

Duration: 42:59
In this episode we invite Sudha Rao to talk about question generation. We talk about different settings where you might want to generate questions: for human testing scenarios (rare), for data augmentation (has been done…