Xiaotie Deng

Preventing Spread of Spam Transactions in Blockchain by Reputation

2020

As one of the fastest-growing applications in the Peer-to-Peer (P2P) network, the development of blockchain technology is accompanied by different attacks. Those include whitewashing, free-riding, and distributed denial of service (DDoS) attacks, particularly because of …

PAC Learnability of Approximate Nash Equilibrium in Bimatrix Games

2021 · arXiv (Cornell University)

Computing Nash equilibrium in bimatrix games is PPAD-hard, and many works have focused on the approximate solutions. When games are generated from a fixed unknown distribution, learning a Nash predictor via data-driven approaches can be …