50 citations · 126 across the 14 of their papers we have counts for
7 papers · 1 filter
Detecting Changed-Hands Online Review Accounts
Geli Fei, Shuai Wang, Bing Liu +1
A reputable social media or review account can be a good cover for spamming activities. It has become prevalent that spammers buy/sell such accounts openly on the Web. We call thes…
AutoAudit: Mining Accounting and Time-Evolving Graphs
Meng-Chieh Lee, Yue Zhao, Aluna Wang +4
How can we spot money laundering in large-scale graph-like accounting datasets? How to identify the most suspicious period in a time-evolving accounting graph? What kind of account…
LookOut on Time-Evolving Graphs: Succinctly Explaining Anomalies from Any Detector
Nikhil Gupta, Dhivya Eswaran, Neil Shah +2
Why is a given node in a time-evolving graph (-graph) marked as an anomaly by an off-the-shelf detection algorithm? Is it because of the number of its outgoing or incoming edges…
Fast, Warped Graph Embedding: Unifying Framework and One-Click Algorithm
Siheng Chen, Sufeng Niu, Leman Akoglu +2
What is the best way to describe a user in a social network with just a few numbers? Mathematically, this is equivalent to assigning a vector representation to each node in a graph…
Ties That Bind - Characterizing Classes by Attributes and Social Ties
Aria Rezaei, Bryan Perozzi, Leman Akoglu
Given a set of attributed subgraphs known to be from different classes, how can we discover their differences? There are many cases where collections of subgraphs may be contrasted…
Temporal Opinion Spam Detection by Multivariate Indicative Signals
Junting Ye, Santhosh Kumar, Leman Akoglu
Online consumer reviews reflect the testimonials of real people, unlike advertisements. As such, they have critical impact on potential consumers, and indirectly on businesses. Acc…