codesimian
Class BayesNodePredictError

java.lang.Object
  codesimian.CS<CSGeneric>
      codesimian.DefaultCS
          codesimian.BayesNodePredictError

All Implemented Interfaces:

CodeSimian

public class BayesNodePredictError
extends DefaultCS

A heuristic that guesses the prediction-error of a "bayes-node" as defined in BayesNode.java, whose child nodes (in its param0) are also bayes-nodes. Returns the average prediction-error. Bayes-nodes return chances 0.0 to 1. The biggest possible prediction error is 1, and smallest is 0. Smaller error is better.

The bayes-node and its child nodes each have a HISTORY, all the same length. I replace those childs with values from their histories, and compare that parent's output against its history.

WARNING: Example: If all of some node's history values are in the small range .6 to .7, then it could simply predict .65 every time and be very accurate. If an other node's history ranges .1 to .9, and it always predicts with only .2 error, its more useful than the first node, but appears not to be because what its supposed to predict is harder. SOLUTION 1: Only compare the BayesNodeAccuracy of nodes that have the same history values (proposed replacements). SOLUTION 2: Compare different nodes, but scale their BayesNodeAccuracy to the difficulty of the problem.

Exec() puts the childs back, and returns the average prediction-error.

Exec() returns 1000 if error (and replaces param0 with an Err), else returns the average prediction error range 0 to 1.

Field Summary

Fields inherited from class codesimian.CS

DESCRIPTION, END, EXECPROXY, HEAP, JAVACODE, MYFUEL, NAME, NEWINSTANCE, NULL, PARENT, PARSEPRIORITY, PREV, TESTER, THIS

Constructor Summary

BayesNodePredictError()

Method Summary

double	cost() cost() should be changed to return a float, and should be renamed to costToExecute() cost of EXECUTING this CS, not including any CSs it executes recursively.
java.lang.String	description() a short description of this CS, shorter than the javadoc, but long enough to tell what the params are for.
double	DForProxy() Execute this CS and cast to double.
java.lang.String	keyword() For the CodeSimian language as a String. CodeSimian language keyword, like "+" "*" "max" ">" etc. Override this function if you want to specify a keyword other than how I derive them from the class name, like + for Add. Some CSs might never be intended to be used in the language by their keyword. The best example (4/05) is Num, because it is used in the language like "3.4" instead of "num()".

Methods inherited from class codesimian.DefaultCS

B, C, countP, decrementMyFuel, deleteP, F, fuel, getExec, getObject, heap, I, indexP, indexPName, insertB, insertC, insertD, insertF, insertI, insertJ, insertL, insertL, insertL1, insertP, insertS, insertZ, J, javaCode, LForProxy, LForProxy, minP, myFuel, name, newInstance, objectToCS, objectToCSArray, objectToCSArray, P, prevD, prevL, PType, S, setB, setC, setCountP, setD, setD, setExec, setF, setFuel, setI, setJ, setL, setL, setL, setL1, setMyFuel, setName, setObject, setP, setPrevExec, setPType, setS, setZ, start, toString, V, Z

Methods inherited from class codesimian.CS

addB, addC, addD, addF, addI, addJ, addL, addP, addP, addP, addP, addP, addS, addZ, BForProxy, CForProxy, clone, D, deleteP, FForProxy, GETB, GETC, GETD, GETF, GETI, GETJ, GETL, GETS, GETZ, IForProxy, isIllusion, JForProxy, L, L, L, L, L, maxD, maxP, minD, overwrites, parent, parsePriority, PB, PC, PD, PF, PI, PJ, PL, prevB, prevC, prevF, prevI, prevJ, prevS, prevZ, proxyOf, PS, PZ, reflect, reflect, reflect6, setB, SETB, setC, SETC, setCost, SETD, setDescription, setF, SETF, setHeap, setI, SETI, setJ, SETJ, SETL, setL, setL, setParent, setParsePriority, setProxyOf, setS, SETS, setTester, setZ, SETZ, SForProxy, tester, toJavaCode, VForProxy, voidReflect, ZForProxy

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

BayesNodePredictError

public BayesNodePredictError()

Method Detail

DForProxy

public double DForProxy()

Description copied from class: CS

Execute this CS and cast to double.

D() and DForProxy() are the 2 most important functions in CS. They execute this CS. All other execute functions, by default, return DForProxy cast to their own type.

For example, J() calls the proxy which calls JForProxy() which calls DForProxy(). D() calls the proxy which calls DForProxy().

By default, all other primitive EXECUTE functions defer to D.
Functions that EXECUTE this CS: L(Class) L(int,Class,int) Z() B() C() S() I() J() F() D() V()

Specified by:

DForProxy in class DefaultCS

keyword

public java.lang.String keyword()

Description copied from class: DefaultCS

For the CodeSimian language as a String.
CodeSimian language keyword, like "+" "*" "max" ">" etc.

Override this function if you want to specify a keyword other than how I derive them from the class name, like + for Add.

Some CSs might never be intended to be used in the language by their keyword.
The best example (4/05) is Num, because it is used in the language like "3.4" instead of "num()".
Default: Returns class name, minus package name (and its dots), and change the first letter to lowercase.

For example, CS.MaxParams does not override keyword(), which returns "maxP".

Overrides:

keyword in class DefaultCS

See Also:

CS.parent(), CS.newInstance(), CS.name()

description

public java.lang.String description()

Description copied from class: CS

a short description of this CS, shorter than the javadoc, but long enough to tell what the params are for. Example use: in automatically generated webpages for CodeSimian. Example: "returns sum of all params" for Add.

Overrides:

description in class DefaultCS

cost

public double cost()

Description copied from class: CS

cost() should be changed to return a float, and should be renamed to costToExecute()

cost of EXECUTING this CS, not including any CSs it executes recursively. The INTERNAL cost.

One unit of myFuel() costs cost() units of fuel(). Beware of CSs that counterfeit fuel.

Returns 1 by default.

Overrides:

cost in class CS