With the evolution of data mining systems, acquisition timely insights from unstructured text is an organizational demand which gradually increasing. The existing opinion systems have a variety properties, such as ranking products’ features and feature level visualizations; however, organizations require decision-making based upon customer feedback. Therefore, system proposed in this work that ...

Li and Chen (Cognit Comput. 2018; 10:496–505) proposed the concept of D-intuitionistic hesitant fuzzy set as well a method for comparing two sets. have by introducing degree belief decision maker regarding opinion an expert in existing definition intuitionistic set. In future, other researchers may use Chen’s their research work. However, after deep study, it is observed that fails to different...

In view of the multi-attribute decision-making problem that the attribute values are grey multi-source heterogeneous data, a decision-making method based on kernel and greyness degree is proposed. The definitions of kernel and greyness degree of an extended grey number in a grey multi-source heterogeneous data sequence are given. On this basis, we construct the kernel vector and greyness degree...