How to calculate point mutual information?
The general formula for all versions of pointwise mutual information is given below; it is the binary logarithm of the joint probability of X = a and Y = b, divided by the product of the individual probabilities that X = a and Y = b.
What is a PMI score?
The Purchasing Managers’ Index (PMI) is an index of the prevailing direction of economic trends in the manufacturing and service sectors. The purpose of the PMI is to provide information about current and future business conditions to company decision makers, analysts, and investors.
What is the general formula for mutual information?
The general formula for all versions of pointwise mutual information is given below; it is the binary logarithm of the joint probability of X = a and Y = b , divided by the product of the individual probabilities that X = a and Y = b.
How to calculate mutual information in phonological corpustools?
To start the analysis, click on “Analysis” / “Calculate mutual information…” in the main menu. The choice between the two algorithms depends on the setting of Set domain to word. The default is ordered pair pMI and choosing “set domain to word” switches to the unordered word-internal co-occurrence pMI.
Which is the formula for pointwise mutual information?
The general formula for pointwise mutual information is given below; it is the binary logarithm of the joint probability of X = a and Y = b , divided by the product of the individual probabilities that X = a and Y = b.
Is the mutual information of X and Y the same?
This gives a directional interpretation to mutual information, such that, while the mutual information of (X; Y) is the same as the mutual information of (Y; X), the pointwise mutual information of (X = a; Y = b) is NOT the same as the pointwise mutual information of (X = b; Y = a ), because the possible values for X and Y are different.