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Semiparametric Causality Tests Using the Policy Propensity Score
Potential outcomes conditional independence
2015/9/22
Time series data are widely used to explore causal relationships, typically in a regression
framework with lagged dependent variables. Regression-based causality tests rely on an
array of functional...
American Association for the Advancement of Science S&T Policy Forum Explores Privacy in an Era of Powerful Surveillance Tools（图）
Surveillance Tools
2007/5/15
14 May 2007，This is the age of watching and being watched. Cameras and other sensors have become so small they can be embedded in door knobs and other places people don’t notice, according to Daniel S...