Applications for Text, Web and Social Media
João Mendes‐Moreira, André C. P. L. F. de Carvalho, Tomáš Horváth · 2018
This chapter describes the three current fields of data analytics that are attracting a great deal of attention due to their wide application in different domains: text mining, social network analysis (SNA) and recommendation systems. Text mining is a very active area of data analytics. Text mining is an important part of several other tasks, like information retrieval, spam detection, sentiment analysis, recommender systems and web mining. The chapter focuses on predictive text mining, also known as text categorization and document classification. It explores three recommender systems (RSs) and their hybrid combinations: knowledge-based techniques, content-based techniques and collaborative filtering techniques. A new direction in RS research concerns context-based and group recommendation. SNA has gained importance in recent years due to the popularity of social networks. Modularity expresses the degree to which a network displays cluster structures.