Inferring Hidden Causes

نویسندگان

  • Tamar Kushnir
  • Alison Gopnik
  • David Danks
چکیده

One of the important aspects of human causal reasoning is that from the time we are young children we reason about unobserved causes. How can we learn about unobserved causes from information about observed events? Causal Bayes nets provide a formal account of how causal structure is learned from a combination of associations and interventions. This formalism makes specific predictions about the conditions under which learners postulate hidden causes. In this study adult learners were shown a pattern of associations and interventions on a novel causal system. We found that they were able to infer hidden causes as predicted by the Bayes net formalism, and were able to distinguish between one hidden common cause and two hidden independent causes of the observed events.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A Non-Parametric Bayesian Method for Inferring Hidden Causes

We present a non-parametric Bayesian approach to structure learning with hidden causes. Previous Bayesian treatments of this problem define a prior over the number of hidden causes and use algorithms such as reversible jump Markov chain Monte Carlo to move between solutions. In contrast, we assume that the number of hidden causes is unbounded, but only a finite number influence observable varia...

متن کامل

Seeing the Unobservable – Inferring the Probability and Impact of Hidden Causes

The causal impact of an observable cause can only be estimated if assumptions are made about the presence and impact of possible additional unobservable causes. Current theories of causal reasoning make different assumptions about hidden causes. Some views assume that hidden causes are always present, others that they are independent of the observed causes. In two experiments we assessed people...

متن کامل

Automatic Oriental Medical Diagnosis via BYY Learning Based Discrete Independent Factor Analysis

An oriental medical diagnosis is featured by inferring hidden causal factors of diseases from observed symptoms. This paper introduces a computer aided diagnosis in help of a linear independent factor model that interprets the observed symptoms as generated from hidden independent causes in term of discrete variables. The model is computed by algorithms obtained from the BYY harmony learning. K...

متن کامل

Inferring causal structure and hidden causes from event sequences

Past research has shown that people use temporal information to detect and discriminate between different causal relationships and that timing-based causal inferences are modulated by explicit information and domain-appropriate expectations. Many of these past results suggest that learners make inferences about hidden causes from timing information, but there have been no systematic studies of ...

متن کامل

Reinforcement learning and causal models

This chapter reviews the diverse roles that causal knowledge plays in reinforcement learning. The first half of the chapter contrasts a “model-free” system that learns to repeat actions that lead to reward with a “model-based” system that learns a probabilistic causal model of the environment which it then uses to plan action sequences. Evidence suggests that these two systems coexist in the br...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2003