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YUSUKE TASHIRO

2 accepted papers

2021

CSDI: Conditional Score-based Diffusion Models for Probabilistic Time Series Imputation

NeurIPS 2021poster

The imputation of missing values in time series has many applications in healthcare and finance. While autoregressive models are natural candidates for time series imputation, score-based diffusion models have recently outperformed existing counterparts including autoregressive models in many tasks…

2020

Diversity can be Transferred: Output Diversification for White- and Black-box Attacks

NeurIPS 2020poster

Adversarial attacks often involve random perturbations of the inputs drawn from uniform or Gaussian distributions, e.g. to initialize optimization-based white-box attacks or generate update directions in black-box attacks. These simple perturbations, however, could be sub-optimal as they are agnosti…