at CENS Workshop on Social Media in Communication, Governance and Security on Nov 6, 2015 by Ponnurangam Kumaraguru (“PK”) @ponguru

1. Mitigating Misinformation Spread on
Micro-blogging Web Services using
TweetCred
CENS
Workshop
on
Social
Media
in
Communica7on,
Governance
and
Security
Nov
6,
2015
Ponnurangam
Kumaraguru
(“PK”)
Associate
Professor,
Founding
Head
Cybersecurity
Educa7on
and
Research
Centre
(CERC)
O/ponnurangam.kumaraguru,
@ponguru

2. Who am I?
– Associate
Professor,
IIIT-­‐Delhi
– Ph.D.
from
School
of
Computer
Science,
Carnegie
Mellon
University
(CMU)
– Research
interests
- Privacy,
e-­‐crime,
online
social
media,
and
usable
security
– Founding
Head,
CERC@IIITD
– Co-­‐ordinate
and
manage
Precog,
precog.iiitd.edu.in
– I
conduct
Government
/
Intelligence
/
Police
focused
training
programs
on
OSM
2

3. Harvard (1839) – Harvard – Harvard – Harvard –
MIT – Northwestern – UIUC – WUSL – CMU (2009)
– IIITD (2015)
3

4. Real World Events
4

5. Misinformation on Social Media
5

6. Misinformation on Social Media
6

7. Misinformation on Social Media
7

8. Misinformation Tweets
FAKE
RUMORS
8
$

9. Temporal Patterns
9
Fake
content
/
rumors
becomes
viral
in
first
7-­‐8
hours
just
a`er
the
event.

10. Sample Fake Tweets
10
>
50,000
RTs
>
30,000
RTs

11. Architecture
11

12. Features for Real-time Analysis
12
Feature
set
Features
(45)
Tweet
meta-­‐data
Number
of
seconds
since
the
tweet;
Source
of
tweet
(mobile
/
web/
etc);
Tweet
contains
geo-­‐coordinates
Tweet
content
(simple)
Number
of
characters;
Number
of
words;
Number
of
URLs;
Number
of
hashtags;
Number
of
unique
characters;
Presence
of
stock
symbol;
Presence
of
happy
smiley;
Presence
of
sad
smiley;
Tweet
contains
`via';
Presence
of
colon
symbol
Tweet
content
(linguis7c)
Presence
of
swear
words;
Presence
of
nega7ve
emo7on
words;
Presence
of
posi7ve
emo7on
words;
Presence
of
pronouns;
Men7on
of
self
words
in
tweet
(I;
my;
mine)
Tweet
author
Number
of
followers;
friends;
7me
since
the
user
if
on
Twiger;
etc.
Tweet
network
Number
of
retweets;
Number
of
men7ons;
Tweet
is
a
reply;
Tweet
is
a
retweet
Tweet
links
WOT
score
for
the
URL;
Ra7o
of
likes
/
dislikes
for
a
YouTube
video

13. Implementation

14. Feedback by Users
14

15. Usage Statistics
Date
of
launch
of
TweetCred
27
Apr,
2014
Credibility
score
requests
received
14,234,131
Unique
Twiger
users
1,808
Feedback
was
given
for
tweets
1,654
Unique
users
who
gave
feedback
364
15
*
Data
as
on
April’15.
hgp://precog.iiitd.edu.in/Publica7ons_files/socinfo_paper_102.pdf

16. Users of TweetCred
Sample
users:
- Emergency
responders
- Firefighters
- Journalists
/
news
media
- General
users
- Researchers
(Requested
API
tokens)
16

17. v
Media / Popular reference

18. TweetCred
– Available
as
a
Chrome
Extension
– Rest
API
hgps://chrome.google.com/webstore/detail/tweetcred/Ookljinlogeihdnkikeeneiankdgikg?hl=en

19. Takeaways
– Technology
can
be
built
to
reduce
the
effect
of
rumors
/
misinforma7on
on
Online
Social
Media
– Will
be
good
to
have
some
interna7onal
collabora7on
in
using
OSM
for
Govt.
- Given
that
I
am
in
Delhi,
will
be
happy
to
help
in
anyways
possible
19

20. Thank
you!
pk@iiitd.ac.in
precog.iiitd.edu.in