Causality Ricardo Silva Centre for Computational Statistics
نویسنده
چکیده
The main task in causal inference is the prediction of the outcome of an intervention. For example, a treatment assigned by a doctor that will change the patient’s heart condition is an intervention. Predicting the change in patient condition is a causal inference task. In general, an intervention is an action taken by an external agent that changes the original values, or the probability distributions, of some of the variables in the system. Besides predicting outcomes of actions, causal inference is also concerned with explanation: identifying which were the causes of a particular event that happened in the past.
منابع مشابه
Wavelet based time-varying vector autoregressive modelling
Vector autoregressive (VAR) modelling is one of the most popular approaches in multivariate time series analysis. The parameters interpretation is simple, and provide an intuitive identification of relationships and Granger causality among time series. However, the VAR modelling requires stationarity conditions which could not be valid in many practical applications. Locally stationary or time ...
متن کاملPrincipled selection of impure measures for consistent learning of linear latent variable models
In previous work, we have developed a principled way of learning the causal structure of linear latent variable models (Silva et al., 2006). However, we have considered the case for models with pure measures only. Pure measures are observed variables that measure no more than one latent variable. This paper presents theoretical extensions that justify the selection of some types of impure measu...
متن کاملThe Z Transform over Finite Fields
Finite field transforms have many applications and, in many cases, can be implemented with a low computational complexity. In this paper, the Z Transform over a finite field is introduced and some of its properties are presented.
متن کاملEvaluation of frozen thawed cauda epididymal sperms and in vitro fertilizing potential of bovine sperm collected from the cauda epididymal
In the present study, the fertilizing potential of semen recovered from slaughtered bulls epididymis was evaluated after cryopreservation, by conventional techniques and flow cytometry methods. The cauda epididymal was dissected and sperm were recovered and evaluated for volume, sperm concentration, and membrane and acrosome integrity using a flow cytometer. Sperm fertility potential was tested...
متن کامل