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CIKM
2011
Springer
14 years 6 months ago
Building directories for social tagging systems
Today, a number of algorithms exist for constructing tag hierarchies from social tagging data. While these algorithms were designed with ontological goals in mind, we know very li...
Denis Helic, Markus Strohmaier
WSDM
2012
ACM
296views Data Mining» more  WSDM 2012»
14 years 1 months ago
Inferring social ties across heterogenous networks
It is well known that different types of social ties have essentially different influence between people. However, users in online social networks rarely categorize their contact...
Jie Tang, Tiancheng Lou, Jon M. Kleinberg
SIGCOMM
2012
ACM
13 years 8 months ago
Perspectives on network calculus: no free lunch, but still good value
ACM Sigcomm 2006 published a paper [26] which was perceived to unify the deterministic and stochastic branches of the network calculus (abbreviated throughout as DNC and SNC) [39]...
Florin Ciucu, Jens Schmitt
SIGIR
2012
ACM
13 years 8 months ago
Automatic term mismatch diagnosis for selective query expansion
People are seldom aware that their search queries frequently mismatch a majority of the relevant documents. This may not be a big problem for topics with a large and diverse set o...
Le Zhao, Jamie Callan
STOC
2012
ACM
251views Algorithms» more  STOC 2012»
13 years 8 months ago
Minimax option pricing meets black-scholes in the limit
Option contracts are a type of financial derivative that allow investors to hedge risk and speculate on the variation of an asset’s future market price. In short, an option has...
Jacob Abernethy, Rafael M. Frongillo, Andre Wibiso...