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Disclosure-free Discovery of Related Documents. Chris Clifton Mummoorthy Murugesan Wei Jiang Luo Si Jaideep Vaidya 18 September, 2009. Problem: Identifying Common Interests.

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disclosure free discovery of related documents

Disclosure-free Discovery of Related Documents

Chris Clifton

MummoorthyMurugesan Wei Jiang

Luo Si JaideepVaidya

18 September, 2009

problem identifying common interests
Problem:Identifying Common Interests

We have evidence that Osama Bin Laden has financed the purchase of Stinger Missiles in Afghanistan. …

There have been reports from Kabul of financial transfers from Bin Laden, purportedly or the purchase of Stinger missiles …

We have evidence that Osama Bin Laden has financed the purchase of Stinger Missiles in Afghanistan. …

There have been reports from Kabul of financial transfers from Bin Laden, purportedly or the purchase of Stinger missiles …

We have evidence that Osama Bin Laden has financed the purchase of Stinger Missiles in Afghanistan. …

There have been reports from Kabul of financial transfers from Bin Laden, purportedly or the purchase of Stinger missiles …

There have been reports from Kabul of financial transfers from Bin Laden, purportedly or the purchase of Stinger missiles …

solution overview
Solution Overview

Alice

Bob

We have evidence that Osama Bin Laden has financed the purchase of Stinger Missiles in Afghanistan. …

There have been reports from Kabul of financial transfers from Bin Laden, purportedly or the purchase of Stinger missiles …

secure product random matrix
Secure Product:Random Matrix

Vaidya and Clifton, Privacy Preserving Association Rule Mining in Vertically Partitioned Data, KDD02

secure product homomorphic encryption
Secure Product:Homomorphic Encryption

Goethals, Laur, Lipmaa, and Mielikainen, On secure scalar product computation for privacy-preserving data mining,ICISC 2004

is performance an issue
Is Performance an Issue?

Alice

Bob

There have been reports from Kabul of financial transfers from Bin Laden, purportedly or the purchase of Stinger missiles …

We have evidence that Osama Bin Laden has financed the purchase of Stinger Missiles in Afghanistan. …

We have evidence that Osama Bin Laden has financed the purchase of Stinger Missiles in Afghanistan. …

There have been reports from Kabul of financial transfers from Bin Laden, purportedly or the purchase of Stinger missiles …

We have evidence that Osama Bin Laden has financed the purchase of Stinger Missiles in Afghanistan. …

There have been reports from Kabul of financial transfers from Bin Laden, purportedly or the purchase of Stinger missiles …

We have evidence that Osama Bin Laden has financed the purchase of Stinger Missiles in Afghanistan. …

There have been reports from Kabul of financial transfers from Bin Laden, purportedly or the purchase of Stinger missiles …

There have been reports from Kabul of financial transfers from Bin Laden, purportedly or the purchase of Stinger missiles …

We have evidence that Osama Bin Laden has financed the purchase of Stinger Missiles in Afghanistan. …

There have been reports from Kabul of financial transfers from Bin Laden, purportedly or the purchase of Stinger missiles …

We have evidence that Osama Bin Laden has financed the purchase of Stinger Missiles in Afghanistan. …

We have evidence that Osama Bin Laden has financed the purchase of Stinger Missiles in Afghanistan. …

We have evidence that Osama Bin Laden has financed the purchase of Stinger Missiles in Afghanistan. …

faster local clustering
Faster: Local Clustering
  • Locally cluster similar documents
    • Secure protocol identifies similar clusters
  • Document comparison only within identified clusters

There have been reports from Kabul of financial transfers from Bin Laden, purportedly or the purchase of Stinger missiles …

We have evidence that Osama Bin Laden has financed the purchase of Stinger Missiles in Afghanistan. …

We have evidence that Osama Bin Laden has financed the purchase of Stinger Missiles in Afghanistan. …

There have been reports from Kabul of financial transfers from Bin Laden, purportedly or the purchase of Stinger missiles …

We have evidence that Osama Bin Laden has financed the purchase of Stinger Missiles in Afghanistan. …

We have evidence that Osama Bin Laden has financed the purchase of Stinger Missiles in Afghanistan. …

There have been reports from Kabul of financial transfers from Bin Laden, purportedly or the purchase of Stinger missiles …

We have evidence that Osama Bin Laden has financed the purchase of Stinger Missiles in Afghanistan. …

There have been reports from Kabul of financial transfers from Bin Laden, purportedly or the purchase of Stinger missiles …

We have evidence that Osama Bin Laden has financed the purchase of Stinger Missiles in Afghanistan. …

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