Full-RSA
The actual RSA model Kullback-Leibler divergence determination for utterance choice experiments.
Softness, non-obedience, alpha and klValueFactor are optimized.
RSAModelUttKLDiv_4params(data, par1, par2, par3, par4)
Arguments
| data |
A matrix with data rows.
column structure: [1:OC1,OC2,OC3,4:numUttOptions,7-X:TurkerSliderValues]
1:OC1 Object 1. A value between 1 and 27.
2:OC2 Object 2. A value between 1 and 27.
3:OC3 Object 3. A value between 1 and 27.
4:numUttOptions The number of valid utterances in the scene.
7-X:TurkerSliderValues These columns contain the participants' slider values. |
| par1 |
- softness parameter
A parameter value between [0,infinity) (The larger the value the higher the tendency towards uniform liking).Value reflects how categorical the listener's preferences are:0: The listener always picks her preferred object.If the listener prefers red objects, she will always pick the red object in the scene.infinity: It is as likely for the listener to pick green, blue or red objects. |
| par2 |
- non-obedience parameter
Determines the extent to which the instruction of the speaker is obeyed by the listener.(0 = full obedience, infinity = full instruction ignorance).Example:0: Listener always picks red objects following the utterance "red".infinity: Listener as likely to pick green, blue or red objects even if the utterance is "red". |
| par3 |
- alpha parameter
A parameter value between 0 and 1.This parameter is an exponential scaling of the speaker choosing the
utterance that maximizes the chance of the listener getting the target object right. |
| par4 |
klValueFactor can be negative, 0 or positive:
- zero
Don't care about learning about the feature preferences of the listener - positive
Care about learning about the feature preferences of the listener - negative
Trying to pick non-ambiguous utterances |
Value
Minimized Kullback-Leibler divergence and the optimal parameters.
Details
This function uses getBestInfGainUttPreferences.
And is used by
RSAModelUttKLDivParamD4,
RSAModelUttKLDivParamD4A.2,
RSAModelUttKLDivParamD4B.2,
RSAModelUttKLDivParamD4AB.2,
RSAModelUttKLDivParamAD4,
RSAModelUttKLDivParamBD4,
RSAModelUttKLDivParamAD4B.2,
RSAModelUttKLDivParamBD4A.2,
RSAModelUttKLDivParamCD4,
RSAModelUttKLDivParamBCD4,
RSAModelUttKLDivParamACD4,
RSAModelUttKLDivParamABD4,
RSAModelUttKLDivParamABCD4.