This is to announce the second NLP Talk webinar to be held on June, 23rd.. I would like to invite you all to this talk which will be presented by Prof. Roberto Navigli. Also, it will be great if you forward the invitation to your colleagues and students.
Title : Generationary and Exemplification Modeling: Going Beyond Word Sense Disambiguation by Generating Definitions and Usage Examples
by: Roberto Navigli Professor at the Sapienza University of Rome
Abstract: In this talk I present two novel approaches, Generationary and Exemplification Modeling, that go beyond the mainstream assumption that word senses can be represented as discrete items of a predefined inventory, and put forward generative models which produce contextualized definitions and usage examples for arbitrary lexical items, from words to phrases. Generationary employs a novel span-based encoding scheme to fine-tune an English pre-trained Encoder-Decoder system and generate new definitions. Generationary outperforms previous approaches in the generative task of Definition Modeling in many settings, but it also matches or surpasses the state of the art in discriminative tasks such as Word Sense Disambiguation and Word-in-Context. Exemplification Modeling takes the opposite perspective: it puts forward a novel task and a seq2seq architecture which generates usage examples given one or more words with their sense definitions. In addition to their considerable degree of freedom in "understanding" lexical meanings, we show that both approaches benefit from training on definitions from multiple inventories, with strong gains across benchmarks.
Time: Wednesday, June, 23, 2021 16:30 (IRDT) (UTC 4.30+) Tehran time 8:00 ( EDT) (UTC -4) 14:00 (CEST) (UTC+2) 12:00 (UTC)
Add to your calendar: https://add.eventable.com/events/60bf09a68ee339555ce15760/60c049b28ee33917e969f4cc
Link : http://nlp.sbu.ac.ir/webinars
Zoom Direct Link : https://zoom.us/webinar/register/WN_O4vdU-jhRzuHeqA3OSwkGg
Also, the video of the previous talk (by Prof. Rada Mihalcea) is available on YouTube at:. https://www.youtube.com/watch?v=33XtLnPDOC0
Regards Mehrnoush Shamsfard, PhD. Faculty of Computer Science and Engineering. NLP Research Lab, Head. Shahid Beheshti University Tehran, Iran ---------- Follow us >>>> Website : nlp.sbu.ac.ir Instagram : https://www.instagram.com/sbunlplab Linkedin : https://www.linkedin.com/company/sbunlplab Twitter : https://twitter.com/SBUNLPLab?s=09 youtube : https://www.youtube.com/channel/UCfkgTLkAqG5CL9a7tketaNQ
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