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A working model for textual Membership Query Synthesis

Published onMay 27, 2022
A working model for textual Membership Query Synthesis


Membership Query Synthesis (MQS) is an active learning paradigm in which one labels generated artificial examples instead of genuine ones to extend a dataset. Despite prodigious advances in the power of generative models, an essential component of MQS, the field stays severely under-studied, especially in the textual domain. We found only one other paper, which selects examples in a latent space close to the decision boundary and shows good results on a curated dataset of short sentences. We show that this performs poorly when used on a real dataset. We propose and report better results than random selection of unlabelled genuine data with random generation of artificial data from a variational auto-encoder coupled with a simple set of filtering mechanisms. This provides an improvement of 31.1% over the previous MQS state-of-the-art on the SST-2 dataset, and of 2.7% over random active learning. To the best of our knowledge, this is the first time MQS is reported to work on a textual task with no constraint on the size of the input sentences

Article ID: 2022L33

Month: May

Year: 2022

Address: Online

Venue: Canadian Conference on Artificial Intelligence

Publisher: Canadian Artificial Intelligence Association


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