University of Cambridge > Talks.cam > NLIP Seminar Series > Learning Structural Kernels for Natural Language Processing

  Browse A-Z

Log in

Googledetails Microsoftdetails

🔐 Log In

Information on

Subscribing to talksdetails Finding a talkdetails Adding a talkdetails Disseminating talksdetails Help and Documentationdetails

ℹ️ Information

Learning Structural Kernels for Natural Language Processing

Download to your calendar using vCal

If you have a question about this talk, please contact Tamara Polajnar .

Structural kernels are a flexible learning paradigm that has been widely used in Natural Language Processing. However, the problem of model selection in kernel-based methods is usually overlooked. Previous approaches mostly rely on setting default values for kernel hyperparameters or using grid search, which is slow and coarse-grained. In contrast, Bayesian methods allow efficient model selection by maximizing the evidence on the training data through gradient-based methods. In this paper we show how to perform this in the context of structural kernels by using Gaussian Processes. Experimental results on tree kernels show that this procedure results in better prediction performance compared to hyperparameter optimization via grid search. The framework proposed in this paper can be adapted to other structures besides trees, e.g., strings and graphs, thereby extending the utility of kernel-based methods.

This talk is part of the NLIP Seminar Series series.

This talk is included in these lists:

Note that ex-directory lists are not shown.

Other lists

In person in the Max Perutz Lecture Theatre (CB2 0QH) and via Zoom, link: https://mrc-lmb-cam-ac-uk.zoom.us/j/95625236862?pwd=NGttT1d6ay9SWFRqUHMvRWNPdDhyZz09 Cavendish Laboratory,Pippard Lecture Theatre, Small Seminar Room, Institute of Public Health, Forvie Site, Robinson Way, Cambridge CB2 0SR

Other talks

Thelocactus What’s my reproduction number? Life history strategies: an interdisciplinary perspective Market Failure, Organ Shortage, Pandemic and Climate Change: The Architecture of Cooperation Feedback and the circumgalactic medium Morning Tea and Coffee Summer Cactus & Succulent Show
 

© 2006-2025 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity