I just read a new paper from Jennifer Preece and Ben Shneiderman that provides a nice framework for the ways people contribute at different rates to collective projects in general and social media on the Internet in particular. Preece, Jennifer…
The recent 2009 ICWSM conference featured research into the nature of a wide range of social media. [flickrset id="72157618579371124" thumbnail="square" overlay="true" size="medium"] Some highlights: An Examination of Language Use in Online Dating Profiles Meenakshi Nagarajan, Marti Hearst Event Detection and…
10.30am A categorical model for discovering latent structure in social annotations (Said Kashoob)
Given a collection of web objects, users and tags, can we model the underlying tag generation process?
-Discover implict communities of interest?
-Categories of related tags?
-For given category, id most relevant objs for category
Initial thoughts: content-based topic modeling (Latent Dirichlet Allocation, LSA). Recent work applying LDA models to tags (Wu 2006, Zhou 2008)
[Vladimir Barash is liveblogging the ICWSM conference] 9-10AM: A Tempest: Or, on the Flood of Interest in Sentiment Analysis, Opinion Mining, and the Computational Treatment of Subjective Language (Lillian Lee)
-Sentiment analysis using discussion structure: clasify speeches in US congressional floor debates as supporting or opposing proposed legislation -Individual doc classifier -agreement (degree) classifier for pairs of speeches
-Agreement info allows COLLECTIVE CLASSIFICATION – “agreeing speeches should get the same label”
-ECON: debate about effect of sentiment on sales
-comScore (users willing to pay 20-99% more for 5 star item vs. 4 star item)
-Jury is still out
-SOC: What opinions are influential? (Niculescu-Danescu Muzyl et al.)
-Prior work has focused on features of text and has not been in context of sociological aspects of reviews
-look at helpfulness scores
There has been significant progress in the NodeXL project! We have just released version .84 that includes support for "schemes" that can set a collection of display attributes in a single click. Along with updates to the menu ribbon, NodeXl…
This year’s CITASA awards have been announced! CITASA is the Communications and Information Technology section of the American Sociological Association. It gathers together more than 300 sociologists interested in the ways groups of people make use of computation and networks.…