Induction of Selective Bayesian Classi

نویسنده

  • Stephanie Sage
چکیده

In this paper, we examine previous work on the naive Bayesian classiier and review its limitations, which include a sensitivity to correlated features. We respond to this problem by embedding the naive Bayesian induction scheme within an algorithm that carries out a greedy search through the space of features. We hypothesize that this approach will improve asymptotic accuracy in domains that involve correlated features without reducing the rate of learning in ones that do not. We report experimental results on six natural domains, including comparisons with decision-tree induction , that support these hypotheses. In closing, we discuss other approaches to extending naive Bayesian classiiers and outline some directions for future research .

برای دانلود رایگان 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 Comparison of Induction Algorithms for Selective andnon - Selective Bayesian Classi

In this paper we present a novel induction algorithm for Bayesian networks. This selective Bayesian network classiier selects a subset of attributes that maximizes predictive accuracy prior to the network learning phase, thereby learning Bayesian networks with a bias for small, high-predictive-accuracy networks. We compare the performance of this classiier with selective and non-selective naive...

متن کامل

Adjusted Probability Naive Bayesian Induction

Naive Bayesian classi ers utilise a simple mathematical model for induction. While it is known that the assumptions on which this model is based are frequently violated, the predictive accuracy obtained in discriminate classi cation tasks is surprisingly competitive in comparison to more complex induction techniques. Adjusted probability naive Bayesian induction adds a simple extension to the n...

متن کامل

cient Learning of Selective Bayesian Network Classi

In this paper, we present a computation-ally eecient method for inducing selective Bayesian network classiiers. Our approach is to use information-theoretic metrics to ef-ciently select a subset of attributes from which to learn the classiier. We explore three conditional, information-theoretic met-rics that are extensions of metrics used extensively in decision tree learning, namely Quin-lan's...

متن کامل

Bayesian Classi cation

Bayesian classi cation addresses the classi cation problem by learning the distribution of instances given di erent class values. We review the basic notion of Bayesian classi cation, describe in some detail the naive Bayesian classi er, and brie y discuss some extensions. C5.1.5.

متن کامل

Constructive Induction of Cartesian Product Attributes

Constructive induction is the process of changing the representation of examples by creating new attributes from existing attributes. In classi cation, the goal of constructive induction is to nd a representation that facilitates learning a concept description by a particular learning system. Typically, the new attributes are Boolean or arithmetic combinations of existing attributes and the lea...

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

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1994