Microblogs Apologizing 1 Applied linguistics 1 Electronic mail systems 1 Fuzzy expert systems 1 Linguistic analysis (Linguistics) 1 Linguistics 1 Malay language 1 Natural language processing (Computer science) 1 Online social networks 1 Public relations 1 Security measures 1 Social aspects 1 Social media 1 Spam (Electronic mail) 1 Usage 1