Mô hình phân lớp văn bản (tiếng Anh) : các câu đánh giá về một vấn đề trong doanh nghiệp như doanh thu, chi phí, ...
example :
(negative - label_1) : Net sales fell by 5 % from the previous accounting period .
(positive - label_0) : With the new production plant the company would increase its capacity to meet the expected increase in demand and would improve the use of raw materials and therefore increase the production profitability
(neutral - label_2) : Around 250 of these reductions will be implemented through pension arrangements .
