scholarly journals Exact Adversarial Attack to Image Captioning via Structured Output Learning With Latent Variables

2019 ◽  
Author(s):  
Yan Xu ◽  
Baoyuan Wu ◽  
Fumin Shen ◽  
Yanbo Fan ◽  
Yong Zhang ◽  
...  
Keyword(s):  
Latent Variables ◽  
Image Captioning ◽  
Structured Output Learning ◽  
Adversarial Attack ◽  
Structured Output

scholarly journals Flexible and Latent Structured Output Learning

2015 ◽  
pp. 220-228 ◽  
Author(s):  
Gustavo Carneiro ◽  
Tingying Peng ◽  
Christine Bayer ◽  
Nassir Navab
Keyword(s):  
Structured Output Learning ◽  
Structured Output

scholarly journals Structured Output Learning with Conditional Generative Flows

2020 ◽  
Vol 34 (04) ◽  
pp. 5005-5012 ◽  
Author(s):  
You Lu ◽  
Bert Huang
Keyword(s):  
Prediction Models ◽  
State Of The Art ◽  
Prediction Method ◽  
Structured Prediction ◽  
Conditional Likelihood ◽  
Structured Output Learning ◽  
Approximate Likelihood ◽  
Structured Output ◽  
Prediction Problems ◽  
The Relationship

Traditional structured prediction models try to learn the conditional likelihood, i.e., p(y|x), to capture the relationship between the structured output y and the input features x. For many models, computing the likelihood is intractable. These models are therefore hard to train, requiring the use of surrogate objectives or variational inference to approximate likelihood. In this paper, we propose conditional Glow (c-Glow), a conditional generative flow for structured output learning. C-Glow benefits from the ability of flow-based models to compute p(y|x exactly and efficiently. Learning with c-Glow does not require a surrogate objective or performing inference during training. Once trained, we can directly and efficiently generate conditional samples. We develop a sample-based prediction method, which can use this advantage to do efficient and effective inference. In our experiments, we test c-Glow on five different tasks. C-Glow outperforms the state-of-the-art baselines in some tasks and predicts comparable outputs in the other tasks. The results show that c-Glow is versatile and is applicable to many different structured prediction problems.

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