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SIGMOD
2011
ACM
177views Database» more  SIGMOD 2011»
12 years 11 months ago
NetTrails: a declarative platform for maintaining and querying provenance in distributed systems
We demonstrate NetTrails, a declarative platform for maintaining and interactively querying network provenance in a distributed system. Network provenance describes the history an...
Wenchao Zhou, Qiong Fei, Shengzhi Sun, Tao Tao, An...
ACII
2011
Springer
12 years 8 months ago
Predicting Facial Indicators of Confusion with Hidden Markov Models
Affect plays a vital role in learning. During tutoring, particular affective states may benefit or detract from student learning. A key cognitiveaffective state is confusion, which...
Joseph F. Grafsgaard, Kristy Elizabeth Boyer, Jame...
WSDM
2010
ACM
168views Data Mining» more  WSDM 2010»
14 years 3 months ago
Evolution of two-sided markets
Two-sided markets arise when two different types of users may realize gains by interacting with one another through one or more platforms or mediators. We initiate a study of the...
Ravi Kumar, Yury Lifshits, Andrew Tomkins
ICASSP
2009
IEEE
14 years 3 months ago
A Bayesian NETWORKS approach for dialog modeling: The fusion BN
Bayesian Networks, BNs, are suitable for mixed-initiative dialog modeling allowing a more flexible and natural spoken interaction. This solution can be applied to identify the in...
Fernando F. Fernández-Martínez, Javi...
ICMI
2009
Springer
126views Biometrics» more  ICMI 2009»
14 years 3 months ago
Multimodal floor control shift detection
Floor control is a scheme used by people to organize speaking turns in multi-party conversations. Identifying the floor control shifts is important for understanding a conversati...
Lei Chen 0004, Mary P. Harper