Class TrainEval & Interface Evalable

[MyD]

Hi @ all,

Would you mind to let me know how the class traineval and the interface evalable has to be used? Thanks in advance.

Regards,
MyD

[Thomas Morton]

Hi,
   The idea was that you could automatically evaluate your models if you implemented the Evalable interface.  These were in the code I inherited 5 years ago and I haven't deleted them nor used them in that time.  Evaluation tends to be pretty specific to a task so I haven't tried to make any automatic evaluation at the model level other than the reporting that happens when you train a model.  Hope this helps...Tom

[MyD]

Hi Tom,

Thanks for the help. Would you mind to give me a simple demo about how to use the TrainEval class and the interface Evalable. I don't know how to implement the method getNegativeOutcome() for the Evalable interface (binary decision).  I saw an example on the web where they always returned "F".  Thanks in advance.

Predict output:

For context: U_nacal |U|0_5 |U|1_3 |U|all_2
+class[0.7181]  -class[0.2819]

    /**
     * The outcome that should be considered a negative result.  This is used
     * for computing recall.  In the case of binary decisions, this would be
     * the false one.
     *
     * @return the events that this EventCollector has gathered
     */
    public String getNegativeOutcome();

Regards,
MyD