Dark Web Collection, Search, and Analysis. Dr. Hsinchun Chen Director, Artificial Intelligence Lab University of Arizona firstname.lastname@example.org http://ai.arizona.edu Acknowledgements: NSF CRI; NSF EXP-LA; DTRA, DOD CTFP, NPS; (ARFL WMD, CIA, FBI). Leaderless Jihad and the Internet.
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Dr. Hsinchun Chen
Director, Artificial Intelligence Lab
University of Arizona
Acknowledgements: NSF CRI; NSF EXP-LA; DTRA, DOD CTFP, NPS; (ARFL WMD, CIA, FBI)
Intelligence and Security Informatics (ISI): Development of advanced information technologies, systems, algorithms, and databases for national security related applications, through an integrated technological, organizational, and policy-based approach” (Chen et al., 2003a)
The New York Times, November 2, 2002
COPLINK assisted in DC sniper investigation
ABC News April 15, 2003
Google for Cops: Coplink software helps police search for cyber clues to bust criminals
Newsweek Magazine, March 3, 2003
A computerized way for police to coordinate crime databases
Washington Post, March 6, 2008
National dragnet is a click away! COPLINK in use in 1,600 police agencies in US!
Strong hate and violence
correlation, especially for
Al-Firdaws has considerably higher violence and also greater anger intensity.
Degree + 5
Root Clustering Algorithm
All Remaining Features Values
Generic Feature Extractor
Extract feature usage vectors
Compute eigenvectors for 2 principal components of feature group
0.533 0.956 -0.541 0.445 0.034 0.089 0.653 0.456 0.975 -0.085 0.143 -0.381
Feature Usage Vector Z
x = Zx
y = Zy
Transform into 2-dimensional space
Repeat steps 2 and 3
The series of overlapping circular patterns for bag-of-word features indicates that the author’s discussion revolves around a related set of topics.ClearGuidance Forum “Experts”
Bag-of-words are predominantly related to religious topics, e.g., Adam, angels, etc.
Many large red blots indicative of the presence of features unique to this author, e.g., Adam, angels, etc.
This author was later arrested as a major culprit in the Toronto terror plot (“Soldier of God”). He uses many violent affect terms.
Radar chart showing violent affect feature usages.
Selected feature is use of term “jihad” which is the highest in the forum .
Selected feature (i.e., “jihad”) is shown in red.
This author constantly attempts to justify acts of violence and terrorism.
“…there are so many paid sheikhs stuck in this life….no point going to them for fatwas…personally speaking…cuz they don’t even agree with jihad in the first place”
AZ Forum Portal
AZ Sentiment Analyzer
Collection – AZ Forum Spider
Dark Web Forum Portal
Search: bomb, iraq
Translations of thread titles
1. Bint ul Islam (290 postings)
2. Iloveislam (239 postings)
3. Abuhannah (173 postings)
Search – AZ Sentiment Analyzer
Analysis – AZ CyberGate Text Analyzer
For more information:
Dr. Hsinchun Chen, University of Arizona