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Searching for an Effective Defender: Benchmarking Defense against Adversarial Word Substitution ...
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Defense against Synonym Substitution-based Adversarial Attacks via Dirichlet Neighborhood Ensemble ...
Abstract: Read paper: https://www.aclanthology.org/2021.acl-long.426 Abstract: Although deep neural networks have achieved prominent performance on many NLP tasks, they are vulnerable to adversarial examples. We propose Dirichlet Neighborhood Ensemble (DNE), a randomized method for training a robust model to defense synonym substitution-based attacks. During training, DNE forms virtual sentences by sampling embedding vectors for each word in an input sentence from a convex hull spanned by the word and its synonyms, and it augments them with the training data. In such a way, the model is robust to adversarial attacks while maintaining the performance on the original clean data. DNE is agnostic to the network architectures and scales to large models (e.g., BERT) for NLP applications. Through extensive experimentation, we demonstrate that our method consistently outperforms recently proposed defense methods by a significant margin across different network architectures and multiple data sets. ...
Keyword: Computational Linguistics; Condensed Matter Physics; Deep Learning; Electromagnetism; FOS Physical sciences; Information and Knowledge Engineering; Neural Network; Semantics
URL: https://dx.doi.org/10.48448/1f5y-5d60
https://underline.io/lecture/25854-defense-against-synonym-substitution-based-adversarial-attacks-via-dirichlet-neighborhood-ensemble
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3
Efficient Contextual Representation Learning With Continuous Outputs
In: Transactions of the Association for Computational Linguistics, Vol 7, Pp 611-624 (2019) (2019)
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4
Attacking Visual Language Grounding with Adversarial Examples: A Case Study on Neural Image Captioning ...
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