reports that their Nsentiment annotator, “when trained with appropriate corpus, can achieve a precision and recall score between 60% to 70%.” These are good numbers when it comes to attitudinal information. Michelle DeHaaff, marketing VP at Attensity, says that “getting beyond sentiment to actionable information, to 'cause,' is what our customers want. But first, you've got to get sentiment right.” 数据挖掘实验室
We've looked at text-analytics techniques with the goal of getting sentiment right, and in a subsequent article, we'll focus on applications. 数据挖掘实验室
