Search Results for author: Hao Qiu

Found 4 papers, 0 papers with code

Delayed Bandits: When Do Intermediate Observations Help?

no code implementations30 May 2023 Emmanuel Esposito, Saeed Masoudian, Hao Qiu, Dirk van der Hoeven, Nicolò Cesa-Bianchi, Yevgeny Seldin

However, if the mapping of states to losses is stochastic, we show that the regret grows at a rate of $\sqrt{\big(K+\min\{|\mathcal{S}|, d\}\big)T}$ (within log factors), implying that if the number $|\mathcal{S}|$ of states is smaller than the delay, then intermediate observations help.

Black-box adversarial attacks using Evolution Strategies

no code implementations30 Apr 2021 Hao Qiu, Leonardo Lucio Custode, Giovanni Iacca

Several methods able to generate adversarial samples make use of gradients, which usually are not available to an attacker in real-world scenarios.

Image Classification

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