Fil will present the paper Folks in folksonomies: Social link prediction from shared metadata (authored with Rossano Schifanella, Alain Barrat, Ciro Cattuto, and Ben Markines) at WSDM 2010 in New York on February 5. The paper discusses homophily, or more specifically the relationship between social connections and social tagging in folksonomies. We show that social similarity measures based on annotations can be effective predictors of friendship relationships. For the occasion, we are making our Last.fm dataset publicly available.
CNetS graduate student Diep Thi Hoang and associate director Filippo Menczer have developed a tool (called Scholarometer, previously Tenurometer in beta version) for evaluating the impact of scholars in their field. Scholarometer uses the h-index, which combines the scholarly output with the influence of the work, but adds the universal h-index proposed by Radicchi et al. to compare the impact of research in different disciplines. This is enabled by a social mechanism in which users of the tool collaborate to tag the disciplines of the scholars. “We have computer scientists, physicists, social scientists, people from many different backgrounds, who publish in lots of different areas,” says Menczer. However, the various communities have different citation methods and different publishing traditions, making it difficult to compare the influence of a sociologist and a computer scientist, for example. The universal h-index controls for differences in the publishing traditions, as well as the amount of research scholars in various fields have to produce to make an impact. Menczer is especially excited about the potential to help show how the disciplines are merging into one another. More from Inside Higher Ed… (Also picked up by ACM TechNews and CACM.)
A report on the popularity of Twitter at IU (which ranks among the top 10 universities on a number of metrics) has sparked some interest in the local media about work CNetS researchers are going on Twitter usage. An interview with Filippo Menczer, associate director of CNetS, appeared on the front page of the Herald-Times on Oct 16, 2009. Indianapolis NBC affiliate Channel 13 interviewed Menczer and CNetS postdoc Bruno Gonçalves for their news program that night. The story was also picked up by the Chicago Tribune, US News & World Report, The Republic, Indianapolis Star, NewsDay, Courier-Journal, Indianapolis Business Journal, News-Sentinel, WIBC, The Indy Channel, WHAS, Journal & Courier, Palladium-Item, Star Press, and IDS.
I gave four invited talks in Spain, Italy, and Switzerland this summer:
- June 18: Social similarity at Yahoo! Labs Barcelona (host: Ricardo Baeza-Yates) — this is where I got the idea of a foosball table in the lab…
- June 19: Dynamics of Online Popularity at the University of Barcelona’s Department of Fundamental Physics (host: Marian Boguna)
- June 25: Social similarity at DEI, Politecnico di Milano (host: Stefano Ceri)
- June 26: Modeling text generation at the Faculty of Informatics, University of Lugano (host: Fabio Crestani)
Thanks to my wonderful hosts and their groups for engaging discussions and delightful hospitality!
Fil Menczer is one of the organizers of Hypertext 2009, the 20th ACM Conference on Hypertext an Hypermedia. The conference will be held June 29-July 1 at the Villa Gualino Convention Centre, on the hills overlooking Torino, Italy. Hypertext is the main venue for high quality peer-reviewed research on “linking.” The Web, the Semantic Web, the Web 2.0, and Social Networks are all manifestations of the success of the link. With a 70% increase in submissions, Hypertext 2009 will have a strong and diverse technical program covering all research concerning links: their semantics, their presentation, the applications, as well as the knowledge that can be derived from their analysis and their effects on society. The conference will also feature demos, posters, a student research competition, four workshops, and keynotes by Lada Adamic and Ricardo Baeza-Yates.
Research and Creativity Activity profiles research by CNetS faculty Filippo Menczer and Alessandro Vespignani and their groups in a special issue on networks. More…
Fil Menczer recently received a $500,000 grant from the National Science Foundation to investigate the Social Integration of Semantic Annotation Networks for Web Applications. The project brings together complex networks and Web mining techniques to develop a new generation of search engines and collaborative Web applications such as GiveALink.org. The researchers will leverage existing annotations from users (such as the bookmarks they already maintain on their browsers) and elicit new ones through useful tools and games. The research will lead to a framework for building and maintaining socio-semantic networks of relationships between, and among, users, tags, and Web sites. In the end, these networks will improve social Web applications such as search, recommendation, spam detection, and exploratory navigation interfaces. More…
This sabbatical is providing wonderful opportunities for me to present our work and establish/strengthen collaborations with several groups in Italy. Recently I have given invited seminars on social search at the Department of Informatics at the University of Torino (hosts Matteo Sereno and Mino Anglano) and on Web traffic at the Department of Math at the University of Padova (host Massimo Marchiori). In the next few weeks I will give a talk on social search at the Department of Informatics and Information Science at the University of Genova (host Marina Ribaudo) and one on search engine bias and Web modeling at my old stomping ground, the Institute of Cognitive Sciences and Technologies of the National Research Council in Rome (host my undergraduate advisor and mentor Domenico Parisi).
I just got back from a visit to Yahoo! Research Silicon Valley. I gave two talks presenting our work on social search and web traffic analysis, and met lots of interesting people. They have an amazing group and of course mountains of data to lust after. Hopefully this will lead to collaborations in the future, given the many intersecting research interests.
Our study on social phishing in Comm. of the ACM 50(10):94-100, 2007 was one of the most downloaded CACM papers in 2007. It was reported by the Associated Press (picked up by over 100 news sources including Washington Post, LA Times, MSNBC, BusinessWeek, USA Today, Philadelphia Inquirer, Fox News, Forbes, Seattle Post Intelligencer, Miami Herald, San Francisco Chronicle, Denver Post, Chicago Tribune, Baltimore Sun, Ottawa Recorder, Sydney Morning Herald, The Age, Houston Chronicle, Philadelphia Daily News, etc.), Sole 24 Ore (Italy), Herald-Times, Reporter-Times, Cox News (Atlanta Journal-Constitution, Dayton Daily News, Austin American-Statesman etc.), PhysOrg, Inside INdiana Business, IDS, ACM TechNews, and Digg. Early reports of the experiment sparked a debate in local and online media (first page of the IDS 26 April 2005 and again April 28, one editorial April 27, WTIU news forum, and Slahdot).