Search Results for author: Daniel Perez

Found 12 papers, 6 papers with code

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

Fast-Fourier-Forecasting Resource Utilisation in Distributed Systems

no code implementations13 Jan 2020 Paul J. Pritz, Daniel Perez, Kin K. Leung

To address the first challenge, we present a communication-efficient data collection mechanism.

Distributed Computing Scheduling

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

Step on the Gas? A Better Approach for Recommending the Ethereum Gas Price

3 code implementations7 Mar 2020 Sam M. Werner, Paul J. Pritz, Daniel Perez

In the Ethereum network, miners are incentivized to include transactions in a block depending on the gas price specified by the sender.

Distributed, Parallel, and Cluster Computing

DeFi Protocols for Loanable Funds: Interest Rates, Liquidity and Market Efficiency

1 code implementation11 Jun 2020 Lewis Gudgeon, Sam M. Werner, Daniel Perez, William J. Knottenbelt

We coin the term *Protocols for Loanable Funds (PLFs)* to refer to protocols which establish distributed ledger-based markets for loanable funds.

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.

Neural language models for text classification in evidence-based medicine

no code implementations1 Dec 2020 Andres Carvallo, Denis Parra, Gabriel Rada, Daniel Perez, Juan Ignacio Vasquez, Camilo Vergara

The COVID-19 has brought about a significant challenge to the whole of humanity, but with a special burden upon the medical community.

General Classification Language Modelling +2

On $C^0$-persistent homology and trees

no code implementations4 Dec 2020 Daniel Perez

In this paper we give a metric construction of a tree which correctly identifies connected components of superlevel sets of $\mathbb{R}$-valued continuous functions $f$ on $X$ and show that it is possible to retrieve the $H_0$-persistent diagram from this tree.

Algebraic Topology Computational Geometry 55N31, 55M10, 62R40, 54C50

On the persistent homology of almost surely $C^0$ stochastic processes

no code implementations17 Dec 2020 Daniel Perez

This paper investigates the propreties of the persistence diagrams stemming from almost surely continuous random processes on $[0, t]$.

Probability Computational Geometry Algebraic Topology 60Jxx, 60J65, 55N35, 33B10, 42A20

SoK: Decentralized Finance (DeFi)

no code implementations21 Jan 2021 Sam M. Werner, Daniel Perez, Lewis Gudgeon, Ariah Klages-Mundt, Dominik Harz, William J. Knottenbelt

Decentralized Finance (DeFi), a blockchain powered peer-to-peer financial system, is mushrooming.

Cryptography and Security General Economics Economics

Data-driven analysis of central bank digital currency (CBDC) projects drivers

no code implementations23 Feb 2021 Toshiko Matsui, Daniel Perez

In this paper, we use a variety of machine learning methods to quantify the extent to which economic and technological factors are predictive of the progression of Central Bank Digital Currencies (CBDC) within a country, using as our measure of this progression the CBDC project index (CBDCPI).

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.

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