1. Emotion propagation in online communities
Shruti Balabhadruni
Golnoosh Farnadi, Dr.Archana Ramesh
Dr.Sergio Davalos, Dr.Martine De Cock
Hi I am Shruti. I am a master’s student in Computer Science. I am working on a research project on modelling emotion propagation in online communities.

2. Others’ emotions affect us
Example: the audience of a presentation – their mood matches that of the speaker. I can see a lot of you smiling so I am hoping that my happiness is spreading to you all - need something funny – here
When they see another person happy, they also feel happy
Boss is angry with employee and the person “takes it out” on his family at home
Emotions are contagious 

3. Emotional influence is social
Emotions spread among people in direct contact – even if they are just know each other or are complete strangers. How many times have we got into a public transit bus a
After a bad day and smiled naturally after encountering a very enthusiastic and happy bus driver ??
Emotion contagion online ?

4. Online communities Social network users - 75 % bshruti7@uw.edu
A recent study shows that if the world has about 2.4 billion Internet users out of which 1.8 billion are active social network users which is nearly 75% of online users.
Here, by online communities I mean social networks like Facebook and Twitter.
Social network users - 75 %

5. Facebook user base Network has users + connections bshruti7@uw.edu
By online communities, I mean online social networks like Facebook and Twitter. This is the graph of facebook’s userbase across the world. The glowing parts are the users and the lines are the connections between the friends. Math – nodes and edges, sociology – actors and ties; in computer science we call them nodes and edges
Vator.tv
Network has users + connections

6. Social networks Real Online
Online social networks are very similar to real social networks as connections model relationships, digital conversations model social interactions
All these digital conversations can be more valuable than you think
Internet users maintain active social presence
Significant part of community is Online : social media
Interactions could be just Noise
User generated content – digital footprints – reveal a lot of information about users..
Researchers have determined personalities, from likes, text messages, emoticons
Social interactions = Digital conversations

7. FEELING What was the user when he/she posted ? Digital conversations
This research focuses on the text messages – be it Status updates made in Facebook or tweets made on Twitter
Significant part of online social interaction is social media
User generated content
People communicate online / express themselves through messages, photos, blogs, likes
Online emotion expression

8. Why emotions on social media ?
Counsellors
Psychotherapists
Emotions
Educators
Businesses
Imagine if we could deliver inspiration to somebody even before they feel completely lost or depressed
Who will benefit ? Potential clients might be looking for help. Psychotherapists can build relationships of trust or community engagement. Taking care of people who are suffering can also make their friends and people around them better.
Understand who you influence and change your own behavior
Can drive efforts to improve psychological health of people
Identify emotional state

9. Why emotions on social media ?
Counsellors
Psychotherapists
Emotions
Educators
Businesses
Imagine if we could deliver inspiration to somebody even before they feel completely lost or depressed
Who will benefit ? Potential clients might be looking for help. Psychotherapists can build relationships of trust or community engagement. Taking care of people who are suffering can also make their friends and people around them better.
Understand who you influence and change your own behavior
Can drive efforts to improve psychological health of people
Identify emotional state

10. Emotion detection - Input
Algorithm
Emotion lexicon
Emotion
Score
Status update on Facebook
Process text of status update

11. Anticipation Joy Trust
Emotion detection
Emotion
Score
Positive 3
Negative
Anger
Anticipation
Disgust
Fear
Joy
Sadness
Surprise
Trust
Emotion
Score
Positive
Negative
Anger
Anticipation
Disgust
Fear
Joy
Sadness
Surprise
Trust
Anticipation
Joy
Trust
Status update on Facebook
Get emotion from text !!!

12. Sadness Trust Emotion detection Get emotion from text !!! Emotion
Score
Positive
Negative 1
Anger
Anticipation
Disgust
Fear
Joy
Sadness
Surprise
Trust 2
Emotion
Score
Positive
Negative
Anger
Anticipation
Disgust
Fear
Joy
Sadness
Surprise
Trust
Sadness
Trust
Status update on Facebook
Get emotion from text !!!

13. 7:30
George
Anna
John
Ben
Sarah

14. 9:30
George
Anna
John
Ben
Sarah

15. 12:30
George
Anna
John
Ben
Sarah

16. Set of emotions Study emotion propagation patterns bshruti7@uw.edu
Disgust
Sad
Anger
Fear
Joy
Excitement
Study emotion propagation patterns

17. Temporal impact
Does time of post affect rate ?

18. Personality impact Is user/friends’ personality important?
The spread of emotion may be
Is user/friends’ personality important?

19. Impact on Community Counsel and care through friends bshruti7@uw.edu
UW Tacoma itself has people from different cultures and educational backgrounds
Developing emotional intelligence
Leaders, educators, parents, clinical researchers, counsellors, celebrities, politicians, businesses
Betterment of community – any person concerned about their influence on others
Counsel and care through friends

20. Takeaways Identify emotional state of person
Study emotion propagation patterns
Counsel and care through friends
I just want to conclude by saying that community has largely become delocalised and risen above geographical backgrounds through social networking and social media. It does not have to be the whole of the Internet. It could be groups of networks and smaller communtities.

21. Time’s Up! About you: Name: Shruti Balabhadruni
Department: Institute of Technology
Contact Information:
Quick bio:
MSCSS student
Interested in Social network analysis, Sentiment Analysis, Data science
Graduating in Dec 2014 – HIRE ME !!!