Search Results for author: Kevin Yen

Found 9 papers, 2 papers with code

TNT: Text Normalization based Pre-training of Transformers for Content Moderation

no code implementations EMNLP 2020 Fei Tan, Yifan Hu, Changwei Hu, Keqian Li, Kevin Yen

In this work, we present a new language pre-training model TNT (Text Normalization based pre-training of Transformers) for content moderation.

SmartGD: A GAN-Based Graph Drawing Framework for Diverse Aesthetic Goals

no code implementations13 Jun 2022 Xiaoqi Wang, Kevin Yen, Yifan Hu, Han-Wei Shen

There are a few existing methods that have attempted to develop a flexible solution for optimizing different aesthetic aspects measured by different aesthetic criteria.

Generative Adversarial Network

Perturbations in the Wild: Leveraging Human-Written Text Perturbations for Realistic Adversarial Attack and Defense

1 code implementation Findings (ACL) 2022 Thai Le, Jooyoung Lee, Kevin Yen, Yifan Hu, Dongwon Lee

We find that adversarial texts generated by ANTHRO achieve the best trade-off between (1) attack success rate, (2) semantic preservation of the original text, and (3) stealthiness--i. e. indistinguishable from human writings hence harder to be flagged as suspicious.

Adversarial Attack

BERT-Beta: A Proactive Probabilistic Approach to Text Moderation

no code implementations EMNLP 2021 Fei Tan, Yifan Hu, Kevin Yen, Changwei Hu

Text moderation for user generated content, which helps to promote healthy interaction among users, has been widely studied and many machine learning models have been proposed.

regression

TSI: an Ad Text Strength Indicator using Text-to-CTR and Semantic-Ad-Similarity

no code implementations18 Aug 2021 Shaunak Mishra, Changwei Hu, Manisha Verma, Kevin Yen, Yifan Hu, Maxim Sviridenko

To realize this opportunity, we propose an ad text strength indicator (TSI) which: (i) predicts the click-through-rate (CTR) for an input ad text, (ii) fetches similar existing ads to create a neighborhood around the input ad, (iii) and compares the predicted CTRs in the neighborhood to declare whether the input ad is strong or weak.

Click-Through Rate Prediction Retrieval +2

DeepGD: A Deep Learning Framework for Graph Drawing Using GNN

no code implementations27 Jun 2021 Xiaoqi Wang, Kevin Yen, Yifan Hu, Han-Wei Shen

In this paper, we propose a Convolutional Graph Neural Network based deep learning framework, DeepGD, which can draw arbitrary graphs once trained.

Political Posters Identification with Appearance-Text Fusion

no code implementations19 Dec 2020 Xuan Qin, Meizhu Liu, Yifan Hu, Christina Moo, Christian M. Riblet, Changwei Hu, Kevin Yen, Haibin Ling

In this paper, we propose a method that efficiently utilizes appearance features and text vectors to accurately classify political posters from other similar political images.

HABERTOR: An Efficient and Effective Deep Hatespeech Detector

no code implementations EMNLP 2020 Thanh Tran, Yifan Hu, Changwei Hu, Kevin Yen, Fei Tan, Kyumin Lee, Serim Park

HABERTOR inherits BERT's architecture, but is different in four aspects: (i) it generates its own vocabularies and is pre-trained from the scratch using the largest scale hatespeech dataset; (ii) it consists of Quaternion-based factorized components, resulting in a much smaller number of parameters, faster training and inferencing, as well as less memory usage; (iii) it uses our proposed multi-source ensemble heads with a pooling layer for separate input sources, to further enhance its effectiveness; and (iv) it uses a regularized adversarial training with our proposed fine-grained and adaptive noise magnitude to enhance its robustness.

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