Posts tagged ‘web’

Hypertext 2009

ht09Fil 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.

Cx-Nets

Complex Networks Collaboratory

lanet-viCx-Nets  is a virtual collaboratory of three research groups that despite their far apart geographical locations pursue the same research agenda in close collaboration. Active research areas include:

  • Network theory, structure and models
  • Information Networks
  • Epidemic modeling
  • Social systems
  • Infrastructures
  • Biological networks

The Cx-Nets website is also intended as an information exchange point with links to conferences, tools and references useful for the network science community.

Alex Vespignani (PI)

Alex Vespignani (PI)

Sandro Flammini

Sandro Flammini

Fil Menczer

Fil Menczer

Web Dynamics

Web Dynamics

Web Dynamics Market

The Web Dynamics group works to build a better understanding of how the Web, the Wikipedia, and similar large information networks, grow and change over their lifetime. Of particular interest is how nodes in these networks gain popularity.

Our preliminary work has painted a picture of the Web as a place in which popularity is very dynamic and unpredictable. Surges in popularity for topics are similar to earthquakes and avalanches in terms of their unpredictability — both in when they will happen and on what scale.

Project Members

Jacob Ratkiewicz

Jacob Ratkiewicz

Michael Conover

Michael Conover

Fil Menczer

Fil Menczer

Sandro Flammini

Sandro Flammini

Alex Vespignani

Alex Vespignani

Luis Rocha

Luis Rocha

Santo Fortunato

Santo Fortunato

Sixearch

The goal of Sixearch.org is to provide an open-source platform for developing a context aware personalized peer-to-peer (P2P) distributed information retrieval system. The application currently supports collaborative Web search with scalability.

Sixearch ArchitectureSixearch uses the idea of modeling neighbor nodes by their content but without assuming the presence of special directory hubs. As shown on the left, each peer is both a (limited) directory hub and a content provider; it has its own topical crawler guided by its user’s information content and local search engine. Peers communication is built on JXTA platform. When a user submits a query, it is first matched against the local engine, and then routed to neighbor peers to obtain more results. Ideally, the peer network should lead to the emergence of a clustered topology by intelligent collaboration between the peers. While traditional search engines such as Google and Yahoo provide access to very large document collections, the Sixearch P2P Web search application provides a complementary way for users to actively and collaboratively share their own document collections. However, the Sixearch framework allows traditional search engines to naturally be included as peers; such peers would quickly emerge as reliable, trustworthy, and general authority nodes.

A screenshot of peer interactions taken from the network visualization applet

A screenshot of peer interactions

The right figure displays a screenshot of the queries being sent among peers. Peer interactions are visualized by the applet at viz.sixearch.org. The area of each node is proportional to the size of its Web index. The edges represent the queries exchanged between two peers. The connectivity of each peer is an indirect measure of centrality, authority, and/or reliability of the peer as learned by the other peers.

Our work on Sixearch has been published in AAAI Magazine (preprint), and presented at Hyperterxt 2009 (demo), ACM SAC2009 (paper), RIAO2007 (demo), ACM CIKM P2PIR2006 (paper), WTAS2005 (paper), WWW2005 (poster), and WWW2004 (poster). Unfortunately, we have also been the victims of shameless plagiarism.

Visit Sixearch.org to learn more and download the application or contribute to it!

Members & Collaborators

Fil Menczer, PI

Fil Menczer

Le-Shin Wu

Le-Shin Wu

Ruj Akavipat's picture

Ruj Akavipat

Namrata Lele

Namrata Lele

Rossano Schifanella

Rossano Schifanella

Ana Maguitman

Ana Maguitman

Support

Nsf_logo Sixearch project is based upon work supported by the the National Science Foundation under award No. IIS-0133124 and IIS-0348940 CAREER: Scalable Search Engines Via Adaptive Topic-Driven Crawlers.
ibm Recently, Sixearch project has received the IBM 2007 UIMA award on 6S: A Collaborative Web Search Network.

NaN


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Networks & agents Network

NaN is a research group exploring complex systems, adaptive agents, modeling, simulation, artificial life, and complex (information, biological, and social) networks. We especially focus on the Web as a complex information network in which we leave abundant traces of our social and semantic activities: what we do, what we are interested in, whom we talk to, what knowledge we acquire and contribute. Our research spans from modeling the dynamic processes that occur on the Web (how information networks grow and evolve, how individual and collective traffic patterns emerge, how attention bursts are generated and shaped by social and search tools) to designing tools that mine the Web to build better search, navigation, management, and recommendation tools (where ‘better’ means more intelligent, autonomous, robust, personalized, contextual, scalable, adaptive, and so on).

We have many ongoing collaborations with colleagues in the Complex Networks Lagrange Lab at the Institute for Scientific Interchange (ISI) Foundation in Torino, Italy.

Active NaN projects

GiveALink

GiveALink

Sixearch

Sixearch

Web Traffic Analysis & Modeling

Web Traffic

Network Flow Analysis

Network Flow Analysis

Web Security

Web Security

Web Dynamics

Web Dynamics

Search Bias

Search Bias

Text & Link Modeling

Text & Link Modeling

Archived NaN projects

InfoSpiders

InfoSpiders

Web Topologies

Web Topologies

IntelliShopper

IntelliShopper

ELSA

ELSA

LEE

LEE

BioNets

BioNets

ACE

ACE

Growing And Navigating The Small World Web By Local Content

A PNAS paper on Growing And Navigating The Small World Web By Local Content was announced in press releases by PNAS News and UIowa. A radio interview for the program Science in Action was broadcast by BBC World Service (QuickTime | Flash | MP3). The paper received coverage in Technology Research News, ACM TechNews, Complexity Digest, Insight, @-web, Ascribe, Boston.com, E4, ResearchBuzz

Web pages cluster by content type

Web pages cluster by content type (TRN News)

InfoSpiders