• Publications
  • Influence
Aiding the Detection of Fake Accounts in Large Scale Social Online Services
TLDR
We introduce a new tool in the hands of OSN operators, which we call SybilRank. Expand
  • 431
  • 72
  • PDF
Uncovering Large Groups of Active Malicious Accounts in Online Social Networks
TLDR
We present SynchroTrap, an incremental processing system that can uncover large groups of malicious accounts that act similarly at around the same time for a sustained period of time. Expand
  • 192
  • 17
  • PDF
HDP code: A Horizontal-Diagonal Parity Code to Optimize I/O load balancing in RAID-6
TLDR
We propose a new parity called Horizontal-Diagonal Parity (HDP), which takes advantages of both horizontal and diagonal/anti-diagonal parities and provides better balanced I/O and higher reliability compared to other popular MDS codes. Expand
  • 62
  • 9
  • PDF
H-Code: A Hybrid MDS Array Code to Optimize Partial Stripe Writes in RAID-6
TLDR
We propose a new XOR-based MDS array code, named Hybrid Code (H-Code), which optimizes partial stripe writes for RAID-6 by taking advantages of both horizontal and vertical codes. Expand
  • 56
  • 7
  • PDF
ROS
The combination of the explosive growth in digital data and the demand to preserve much of these data in the long term has made it imperative to find a more cost-effective way than HDD arrays and aExpand
  • 85
  • 5
Understanding Cross-site Linking in Online Social Networks
TLDR
We study the emerging "cross-site linking" function, which is supported by many OSNs. Expand
  • 43
  • 4
  • PDF
Victim Disk First: An Asymmetric Cache to Boost the Performance of Disk Arrays under Faulty Conditions
TLDR
We propose a novel asymmetric buffer cache replacement strategy, named Victim (or faulty) Disk(s) First (VDF) cache, to improve the reliability and performance of a storage system consisting of a buffer cache and disk arrays. Expand
  • 26
  • 4
  • PDF
Detailed characterization of a quad Pentium Pro server running TPC-D
TLDR
We present a detailed performance characterization of the TPC-D benchmark running on a 4-processor Pentium Pro SMP multiprocessor with Windows NT and Microsoft's SQL Server. Expand
  • 40
  • 3
SybilFence: Improving Social-Graph-Based Sybil Defenses with User Negative Feedback
TLDR
We propose SybilFence, a system that improves over social-graph-based Sybil defenses to further thwart Sybils. Expand
  • 24
  • 3
  • PDF
Balanced P-Code: A RAID-6 Code to Support Highly Balanced I/Os for Disk Arrays
TLDR
We propose a novel efficient RAID-6 code to support highly balanced I/Os among disk arrays - Balanced P-Code. Expand
  • 10
  • 3
...
1
2
3
4
5
...