本文整理汇总了Java中cc.mallet.types.InstanceList.isEmpty方法的典型用法代码示例。如果您正苦于以下问题：Java InstanceList.isEmpty方法的具体用法？Java InstanceList.isEmpty怎么用？Java InstanceList.isEmpty使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类cc.mallet.types.InstanceList的用法示例。
在下文中一共展示了InstanceList.isEmpty方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: findOutMode
import cc.mallet.types.InstanceList; //导入方法依赖的package包/类
protected AbstractMap.SimpleEntry<String,Integer> findOutMode(CorpusRepresentationMalletTarget crm) {
InstanceList instances = crm.getRepresentationMallet();
// we pass on a "mode" for the learning problem, which is one of the following:
// - classind: predict the index of a class
// - classcosts: targets are vectors of class costs
// - regr: regression
// we also pass on another parameter which provides details of the learning problem:
// - the number of class indices in case of classind and classcosts
// - 0 as a dummy value in case of "regr"
int nrClasses = 0;
String mode = "regr";
Alphabet ta = crm.getPipe().getTargetAlphabet();
if(ta != null) {
// if this is invoked for training, we should have a first instance, but for
// application, we do not have any instances yet. If we do not have any instances, we
// just use dummy values for now since at the moment we do not need this information
// at application time. Should we ever need it we need to store this in the pipe!
if(instances==null || instances.isEmpty()) {
mode="classind";
nrClasses=-1;
} else {
Instance firstInstance = instances.get(0);
Object targetObj = firstInstance.getTarget();
if(targetObj instanceof NominalTargetWithCosts) {
NominalTargetWithCosts target = (NominalTargetWithCosts)targetObj;
nrClasses = target.getCosts().length;
mode = "classcosts";
} else {
mode = "classind";
nrClasses = ta.size();
}
}
}
AbstractMap.SimpleEntry<String,Integer> ret = new AbstractMap.SimpleEntry<String, Integer>(mode,nrClasses);
return ret;
}
示例2: isEmpty
import cc.mallet.types.InstanceList; //导入方法依赖的package包/类
public boolean isEmpty () {
for (InstanceList list : this.lists) {
if (list != null && !list.isEmpty ()) {
return true;
}
}
return false;
}