Post on 13-Dec-2015
Analysis of Social MediaMLD 10-802 aka LTI 11-772
William Cohen (MLD) wcohen@cs.cmu.edu
Natalie Glance (Google) nglance@gmail.com
8-28-07
Agenda
• Introductions– William– Natalie– …
• Meeting times and grading– One meeting/week– Class participation (we’re a seminar!)– Present paper(s)
• Some comments about the course…
What is social media?
• Media developed collaboratively by a community– Examples:
• Proc of the 23rd Intl Conf on Machine Learning • Wikipedia• YouTube• Blogosphere• WWW
– Characteristics:• Decreasing cost and/or relative difficulty of participation
many more participants• Many participants decentralized editorial process• Many participants rapid changes over time
• O(1) editor
• O(1) reviewer
• O(1) author
• O(1) editors (PC)
• O(10) SPCs
• O(100) reviewers
• O(1000) authors
What is social media?
• Media developed collaboratively by a community– Examples:
• Proc of the 23rd Intl Conf on Machine Learning • Wikipedia• YouTube• Blogosphere• WWW
– Characteristics:• Decreasing cost and/or relative difficulty of participation
many more participants• Many participants decentralized editorial process• Many participants rapid changes over time
Why study social media?
• Change or spike?
• Open-source was a real change in how software is developed
• Will there be a real change in how knowledge is developed and transmitted?
Socialweb.hcireseach.org – a socialogists versionOf this course -?
What is social media?
• Media developed collaboratively by a community– Examples:
• Proc of the 23rd Intl Conf on Machine Learning • Wikipedia• YouTube• Blogosphere• WWW
– Characteristics:• Decreasing cost and/or relative difficulty of participation
many more participants• Many participants decentralized editorial process• Many participants rapid changes over time
Editorial control/uniform look and feel links between different blogs
1. DailyKOS
2. BoingBoing
3. LiveJournal community
4. Reciprocally linked blogs (blue) around Michelle Malkin
5. Porn
6. Sports
Visualization from Matt Hurst (Microsoft LiveLabs):
What is social media?• Media developed collaboratively by a community
– Characteristics:• Decreasing cost and/or relative difficulty of participation many
more participants• Many participants decentralized editorial process• Many participants rapid changes over time
– Some research questions:• Who are the members of the community?
– Author identification from text, predicting sex, location, and other demographics from text, identifying entities in “anonymized” networks, …
• Which members are most influential?– PageRank, models of viral marketing, predicting citation
influence, …• What are they collectively saying?
– Sentiment analysis, aggregating opinions, trend analysis, predicting political affiliation, …
Immediate plan
• Students: – make sure I have your email– look over reading list and think about what you’d like
to present and when
• Next Tuesday: – some technical background on sentiment analysis,
maybe link prediction, from William and/or Natalie– readings for Tuesday to be announced by end of the
week– office hours TBA