17. The computer-implemented method of claim 16 , wherein the corresponding text classifier is configured to be trained by inputting a plurality of scored training text blocks for characterizing whether the content expresses the actionable user concern, wherein the corresponding text classifier is associated with a corresponding knowledge base of training data.
17. The computer-implemented method of claim 16 , wherein the corresponding text classifier is configured to be trained by inputting a plurality of scored training text blocks for characterizing whether the content expresses the actionable user concern, wherein the corresponding text classifier is associated with a corresponding knowledge base of training data. 18. The computer-implemented method of claim 17 , wherein the corresponding text classifier is trained according to a corresponding customer issue.