53 - Classical Structured Prediction Losses for Sequence to Sequence Learning, with Sergey and Myle

53 - Classical Structured Prediction Losses for Sequence to Sequence Learning, with Sergey and Myle

Author: Allen Institute for Artificial Intelligence March 22, 2018 Duration: 26:58
NAACL 2018 paper, by Sergey Edunov, Myle Ott, Michael Auli, David Grangier, and Marc'Aurelio Ranzato, from Facebook AI Research In this episode we continue our theme from last episode on structured prediction, talking with Sergey and Myle about their paper. They did a comprehensive set of experiments comparing many prior structured learning losses, applied to neural seq2seq models. We talk about the motivation for their work, what turned out to work well, and some details about some of their loss functions. They introduced a notion of a "pseudo reference", replacing the target output sequence with the highest scoring output on the beam during decoding, and we talk about some of the implications there. It also turns out the minimizing expected risk was the best overall training procedure that they found for these structured models. https://www.semanticscholar.org/paper/Classical-Structured-Prediction-Losses-for-Sequence-Edunov-Ott/20ae11c08c6b0cd567c486ba20f44bc677f2ed23

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
63 - Neural Lattice Language Models, with Jacob Buckman [not-audio_url] [/not-audio_url]

Duration: 30:03
TACL 2018 paper by Jacob Buckman and Graham Neubig. Jacob tells us about marginalizing over latent structure in a sentence by doing a clever parameterization of a lattice with a model kind of like a tree LSTM. This lets…
56 - Deep contextualized word representations, with Matthew Peters [not-audio_url] [/not-audio_url]

Duration: 30:06
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