Combined Approaches - Natural Language Processing with Java - page 295

Using multiple cores with the Stanford pipeline
The annotate method can also take advantage of multiple cores. It is an overloaded
method where one version uses an instance of an Iterable<Annotation> as its para-
meter. It will process each Annotation instance using the processors available.
We will use the previously defined pipeline object to demonstrate this version of the
annotate method.
First, we create four Annotation objects based on four short sentences, as shown here.
To take full advantage of the technique, it would be better to use a larger set of data:
Annotation annotation1 = new Annotation(
"The robber took the cash and ran.");
Annotation annotation2 = new Annotation(
"The policeman chased him down the street.");
Annotation annotation3 = new Annotation(
"A passerby, watching the action, tripped the thief "
+ "as he passed by.");
Annotation annotation4 = new Annotation(
"They all lived happily ever after, except for the thief
"
+ "of course.");
The ArrayList class implements the Iterable interface. We create an instance of this
class and then add the four Annotation objects to it. The list is then assigned to an
Iterable variable:
ArrayList<Annotation> list = new ArrayList();
list.add(annotation1);
list.add(annotation2);
list.add(annotation3);
list.add(annotation4);
Iterable<Annotation> iterable = list;
The annotate method is then executed:
pipeline.annotate(iterable);