User profiles for Jiahua Xu

Jiahua Xu

- Verified email at ucl.ac.uk - Cited by 1041

Jiahua Xu

- Verified email at mail.ustc.edu.cn - Cited by 577

The anatomy of a cryptocurrency {Pump-and-Dump} scheme

J Xu, B Livshits - 28th USENIX Security Symposium (USENIX Security …, 2019 - usenix.org
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 …

Extracellular matrix alters PDGF regulation of fibroblast integrins.

J Xu, RA Clark - The Journal of cell biology, 1996 - rupress.org
Extracellular matrix (ECM) and growth factors are potent regulators of cell phenotype. These
biological mediators of cellular responses are potentially interactive and as such could drive …

GraphIQA: Learning distortion graph representations for blind image quality assessment

S Sun, T Yu, J Xu, W Zhou… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
A good distortion representation is crucial for the success of deep blind image quality
assessment (BIQA). However, most previous methods do not effectively model the relationship …

Liquidations: DeFi on a Knife-edge

D Perez, SM Werner, J Xu, B Livshits - … , FC 2021, Virtual Event, March 1–5 …, 2021 - Springer
The trustless nature of permissionless blockchains renders overcollateralization a key safety
component relied upon by decentralized finance (DeFi) protocols. Nonetheless, factors …

Sok: Yield aggregators in defi

S Cousaert, J Xu, T Matsui - 2022 IEEE International …, 2022 - ieeexplore.ieee.org
Yield farming has been an immensely popular activity for cryptocurrency holders since the
explosion of Decentralized Finance (DeFi) in the summer of 2020. In this Systematization of …

Sok: Decentralized exchanges (dex) with automated market maker (amm) protocols

J Xu, K Paruch, S Cousaert, Y Feng - ACM Computing Surveys, 2023 - dl.acm.org
As an integral part of the decentralized finance (DeFi) ecosystem, decentralized exchanges (DEXs)
with automated market maker (AMM) protocols have gained massive traction with the …

The energy footprint of blockchain consensus mechanisms beyond proof-of-work

M Platt, J Sedlmeir, D Platt, J Xu… - 2021 IEEE 21st …, 2021 - ieeexplore.ieee.org
Popular permissionless distributed ledger technology (DLT) systems using proof-of-work (PoW)
for Sybil attack resistance have extreme energy requirements, drawing stern criticism …

Design and evaluation of approximate logarithmic multipliers for low power error-tolerant applications

W Liu, J Xu, D Wang, C Wang… - … on Circuits and …, 2018 - ieeexplore.ieee.org
In this paper, the designs of both non-iterative and iterative approximate logarithmic multipliers
(ALMs) are studied to further reduce power consumption and improve performance. Non-…

[HTML][HTML] Rac1 mediates type I collagen-dependent MMP-2 activation: role in cell invasion across collagen barrier

Y Zhuge, J Xu - Journal of Biological Chemistry, 2001 - ASBMB
Cell migration and proteolysis are two essential processes during tumor invasion and metastasis.
Matrix metalloproteinase (MMP)-2 (type IV collagenase; gelatinase A), is implicated in …

Reap the harvest on blockchain: A survey of yield farming protocols

J Xu, Y Feng - IEEE Transactions on Network and Service …, 2022 - ieeexplore.ieee.org
Yield farming represents an immensely popular asset management activity in decentralized
finance (DeFi). It involves supplying, borrowing, or staking crypto assets to earn an income …