COMP 381. Exercise: Data Collection 1.Who are the “fact collectors”? (make a list—be specific)...
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PRIVACY: DATA MINING 9 FEBRUARY COMP 381
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Transcript of COMP 381. Exercise: Data Collection 1.Who are the “fact collectors”? (make a list—be specific)...
PRIVACY: DATA MINING9 FEBRUARY
COMP 381
Exercise: Data Collection
1. Who are the “fact collectors”? (make a list—be specific)
2. What KINDS of ‘facts’ are stored about you/us? (make a list—be specific)
Fact Collectors (class list)
government
census
taxes
work
cars, houses, real estate
voting record and party affiliation
bank accounts
medical records
criminal history; civil suits
guns
birth/death
insurance
schools
grades
finances
address
family background
SSN
medical/mental health
salary
degrees/education
schedule
on-campus purchases
access to buildings/dorms
computer usage/printing
activities
criminal records
employers
conflict of interest
investments
political activities
knowledge
websites
phone calls
purchases
SSN
companies that I buy from
buy
sites
credit ratings
address & phone
other companies
purchased info from other companies
info based on IP address
public info (see above)
family and friends
Data & informational privacy
One should ask:• Who has ACCESS?
• Who should have ACCESS?
• Need to know?
• Why?
• How long is the data kept?
Question Is there a problem with a search engine
monopoly (or oligolopy)?
Mowshowitz and Kumar, And Then There Were Three
Search Engine US Market Shares(December 2010)
Google 66.6 Yahoo 16.0 Microsoft 12.0 Ask 3.5 AOL 1.9
Source:http://searchenginewatch.com/3641746
Global
Video Entertainment
No Place to Hide Big Brother Big Business
Grocery Store Receipts
eggsmilk
breadcheeseplates
napkinstrash bags
eggscheese
sour creambreadchipssoup
milkeggsbreadbutter
cheesegumsoda
breadeggsmilk
cheesediapers
juice
Diapers and beer?Super Bowl
Sunday?
http://portal.acm.org/citation.cfm?doid=358108.358114
Clique = a tightly-knit group of people
Clique = a set of vertices in a graph that are all connected to each other by edges of the graph
Maximal Clique = a clique that is not a subset of a larger clique
Friend Grouper: Definitions
AliceBob
EvaDavid
Carol
online social network is rarely a perfect representation of the real social networknew member“acquaintances” or “friends”
Friend Grouper: Problem Addressed
Real Life Online
Alice Bob
EvaDavid
Carol
Alice Bob
EvaDavid
Carol
Triangle Closure Nodes = People Edges = Social Relationships
Individuals with common friends are more likely to become friends
Leads to “people you may know”
BabyNames
Pandora
Half.com
Innocuous
Recommending Movies Predicting Ratings Data-Mining Contest:
Release rating data, sans “identifying information”
Prize awardedAdditional contests: canceled
○ http://bits.blogs.nytimes.com/2010/03/12/netflix-cancels-contest-plans-and-settles-suit/
Borderline: Netflix
“people you may know”Ex-boyfriend/girlfriend you don’t want to talk
to…EVERPerson who used to bully you
“reconnect”Person in coma in Australia
Borderline: Facebook
Types of Invasions
IndividualCameras
GovernmentalSnuggly bear on warrantless wiretapping
InstitutionalPrivacy and social networks
