Search Results for author: Benjamin Livshits

Found 10 papers, 8 papers with code

Auto.gov: Learning-based On-chain Governance for Decentralized Finance (DeFi)

1 code implementation19 Feb 2023 Jiahua Xu, Daniel Perez, Yebo Feng, Benjamin Livshits

In recent years, decentralized finance (DeFi) has experienced remarkable growth, with various protocols such as lending protocols and automated market makers (AMMs) emerging.

Liquidations: DeFi on a Knife-edge

1 code implementation28 Sep 2020 Daniel Perez, Sam M. Werner, Jiahua Xu, Benjamin Livshits

We find that liquidators' efficiency has improved significantly over time, with currently over 70% of liquidable positions being immediately liquidated.

Revisiting Transactional Statistics of High-scalability Blockchain

1 code implementation5 Mar 2020 Daniel Perez, Jiahua Xu, Benjamin Livshits

In particular, 96% of the transactions on EOSIO were triggered by the airdrop of a currently valueless token; on Tezos, 76% of throughput was used for maintaining consensus; and over 94% of transactions on XRPL carried no economic value.

Cryptography and Security

Privacy-Preserving Bandits

1 code implementation10 Sep 2019 Mohammad Malekzadeh, Dimitrios Athanasakis, Hamed Haddadi, Benjamin Livshits

Contextual bandit algorithms~(CBAs) often rely on personal data to provide recommendations.

Multi-Label Classification Privacy Preserving

Smart Contract Vulnerabilities: Does Anyone Care?

1 code implementation18 Feb 2019 Daniel Perez, Benjamin Livshits

In the last year we have seen a great deal of both academic and practical interest in the topic of vulnerabilities in smart contracts, particularly those developed for the Ethereum blockchain.

Cryptography and Security

The Anatomy of a Cryptocurrency Pump-and-Dump Scheme

1 code implementation25 Nov 2018 Jiahua Xu, Benjamin Livshits

While pump-and-dump schemes have attracted the attention of cryptocurrency observers and regulators alike, this paper represents the first detailed empirical query of pump-and-dump activities in cryptocurrency markets.

Anatomy

AdGraph: A Graph-Based Approach to Ad and Tracker Blocking

1 code implementation22 May 2018 Umar Iqbal, Peter Snyder, Shitong Zhu, Benjamin Livshits, Zhiyun Qian, Zubair Shafiq

AdGraph differs from existing approaches by building a graph representation of the HTML structure, network requests, and JavaScript behavior of a webpage, and using this unique representation to train a classifier for identifying advertising and tracking resources.

Blocking

BLENDER: Enabling Local Search with a Hybrid Differential Privacy Model

no code implementations2 May 2017 Brendan Avent, Aleksandra Korolova, David Zeber, Torgeir Hovden, Benjamin Livshits

We propose a hybrid model of differential privacy that considers a combination of regular and opt-in users who desire the differential privacy guarantees of the local privacy model and the trusted curator model, respectively.

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