Robot device and behavior control method for robot device

A robot apparatus performing autonomous behavior based at least on an internal state, comprising:

• an information acquisition model having a parameter of a desire for information acquisition as a change factor of said internal state;
• behavior control means for causing the robot apparatus to perform an information acquisition behavior as being among the autonomous behavior based on the constancy of the internal state, when the parameter of said desire for information acquisition is of a preset threshold value;
• and
• wherein the parameter of said desire for information acquisition represents a hungry feeling for learning.

A robot apparatus performing autonomous behavior based at least on an internal state, comprising:

• an information acquisition model having a parameter of a desire for information acquisition as a change factor of said internal state;
• behavior control means for causing the robot apparatus to perform an information acquisition behavior as being among the autonomous behavior based on the constancy of the internal state, when the parameter of said desire for information acquisition is of a preset threshold value;
• and
• wherein the parameter of said desire for information acquisition is an amount of the acquired information.

A robot apparatus performing autonomous behavior based at least on an internal state, comprising:

• an information acquisition model having a parameter of a desire for information acquisition as a change factor of said internal state;
• behavior control means for causing the robot apparatus to perform an information acquisition behavior as being among the autonomous behavior based on the constancy of the internal state, when the parameter of said desire for information acquisition is of a preset threshold value;
• and
• wherein the parameter of said desire for information acquisition is an amount of learning for new information.

A robot apparatus comprising:

• speech inputting means;
• a plurality of models characterizing a plurality of word sequences, said models having been classified based on characteristic values of said word sequences prevailing when the word sequences have been uttered;
• speech input evaluating means for evaluating speech inputs, made by said speech inputting means, in accordance with said word sequence characterizing models;
• and
• word sequence specifying means for specifying the word sequences of said speech input based on evaluation values of said speech input evaluating means.

A behavior control method for a robot apparatus, said method comprising:

• a speech inputting step;
• a speech input evaluating step of evaluating speech inputs, made at said speech inputting step, in accordance with a plurality of models characterizing a plurality of word sequences, said models having been classified based on characteristic values of said word sequences prevailing when the word sequences have been uttered;
• and
• a word sequence specifying step of specifying the word sequences of said speech input based on evaluation values obtained at said speech input evaluating step.

A robot apparatus, acting autonomously, comprising:

• a sensor for detecting an object;
• a perception evaluating means for evaluating input signals from said sensor;
• an internal state management means fed with results of evaluation of said perception evaluating part for managing fake internal states changed based on said results;
• and
• storage means for storing the relationship between said object and changes in said internal state which are based on said object.

A behavior control method for a robot apparatus, acting autonomously, comprising:

• a perception evaluating step of evaluating input signals from a sensor which detects an object;
• an internal state management step of managing fake internal states changed based on results of evaluation at said perception evaluating step;
• and
• a storage step of storing the relationship between said object and changes in said internal state which are based on said object.