Italian press: article about TAGora on La Stampa
TAGora at the DPG conference
Some results of the TAGora project will be reported at the DPG conference in Regensburg (March 26th to 30th, full program available here).
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Title: Stochastic models for social tagging behavior
Speaker: Ciro Cattuto
Session: AKSOE 10.2
Day, time and location: Wednesday, March 28th, 14:00-14:30, H8
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Title: Ranking and community detection in unweighted networks
Speaker: Vito D. P. Servedio
Session: DY 4.1
Day, time and location: Monday, March 26th, 12:00-12:15, H3
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Title: Non-equilibrium phase transitions in negotiation dynamics
Speaker: Vittorio Loreto
Session: AKSOE 3.3
Day, time and location: Monday, March 26th, 15:00-15:30, H8
Vito D. P. Servedio will also present a poster on Investigating community structure in social tagging systems.
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Italian press: article about TAGora on La Stampa...
Coming soon...
Practical Conforming Datatype Groups
HPL-2007-37
Practical Conforming Datatype Groups - Turner, David; Carroll, Jeremy
Keyword(s): datatype group; decidability; OWL
Abstract: Please Note. This abstract contains mathematical formulae which cannot be represented here. Datatype groups are an extension to certain Description Logics (DLs) that permit the user to reason about n-tuples of data, where n ? 1, and thus to express complex constraints on multiple properties of objec ...
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Optimal Parameter Choice for Wyner-Ziv Coding of Laplacian Sources with Decoder Side-Information
HPL-2007-34
Optimal Parameter Choice for Wyner-Ziv Coding of Laplacian Sources with Decoder Side-Information - Mukherjee, Debargha
Keyword(s): source coding with side-information; Wyner-Ziv; Laplacian distribution; Gaussian distribution; channel codes; LDPC codes; Turbo codes; arithmetic codes
Abstract: A large number of practical coding scenarios deal with sources, for instance transform coefficients that can be well modeled as Laplacians. In regular practical coding of such sources, samples are often quantized by a family of uniform quantizers possibly with a deadzone, and then entropy coded. For ...
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Comprehensive Solutions for Removal of Dust and Scratches from Images
HPL-2007-20
Comprehensive Solutions for Removal of Dust and Scratches from Images - Bergman, Ruth; Maurer, Ron; Nachlieli, Hila; Ruckenstein, Gitit; Chase, Patrick; Greig, Darryl
Keyword(s): dust and scratch removal; defect detection
Abstract: Dust, scratches or hair on originals (prints, slides or negatives) distinctly appear as light or dark artifacts on a scan. These unsightly artifacts have become a major consumer concern. There are several scenarios for removal of dust and scratch artifacts. One scenario is during acquisition, e.g., ...
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“My iPod is my Pacifier”: An Investigation on the Everyday Practices of Mobile Video Consumption
HPL-2006-151(R.1)
"My iPod is my Pacifier": An Investigation on the Everyday Practices of Mobile Video Consumption - Vorbau, W. Alex; Mitchell, April Slayden; O'Hara, Kenton
Keyword(s): user study; mobility; video
Abstract: New mobile digital video technologies are creating dramatic shifts in the ways that video-based content can be produced, consumed, and delivered. One such shift has been the emergence of mobile video devices like video-enabled iPods and mobile phones. In the same way that the Walkman revolutionized ...
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Tags on Scientific American and ScienceNOW
International School on Complexity
Statistical physics of social dynamics: opinions, semiotic dynamics and language
Statistical mechanics has proven to be a very fruitful framework to describe phenomena outside the realm of traditional physics. The last years have witnessed the attempt by physicists to study phenomena which heavily rely on human behavior, like the dynamics of financial markets and the emergence of collective organization in social systems.
Social interactions are usually local: every individual interacts with a limited number of its peers, which is negligeable as compared with the total number of people inside a community. In spite of that, human societies are characterized by a number of stunning global regularities. There are remarkable transitions from disorder to order, like the emergence of a common language/culture or the creation of a consensus about a specific topic.
The conference, which is held in the beautiful city of Erice (Italy) from 14 to 19 July 2007, will specifically focus on three major research lines, i.e. opinion dynamics, dynamics in human language and the statistical physics of language dynamics.
For further info: http://pil.phys.uniroma1.it/erice2007
Deadline for registration: 1st April 2007
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Gifting Technologies: A BitTorrent Case Study
HPL-2007-26
Gifting Technologies: A BitTorrent Case Study - Ripeanu, Matei; Mowbray, Miranda; Andrade, Nazareno; Lima, Aliandro
Keyword(s): peer-to-peer; gifting; communities
Abstract: This paper is concerned with gifting: giving not motivated by a direct, immediate, or obvious benefit. We analyze a popular technology used for gifting: the BitTorrent file sharing system. We determine features associated with high levels of gifting and suggest changes to the protocol and to the des ...
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