“From the point of view of an active researcher, I feel that computer scientists and technologists, including professors, graduate/doctoral students and other advanced researchers, will find this book a valuable resource for extending their research further and benefiting it from progress in Computer Science fields other than the ones into which they specialize. … I, thus, hand my congratulations to the Editors for their superb work and I provide my highest and unreserved recommendation to it.” (Sotirios Kotsiantis, Intelligent Decision Technologies, Vol.15 (2), 2021)

• Chapter 1: This is Just Metadata: From no Communication Content to User Profiling, Surveillance and Exploitation.- Chapter 2: A fuzzy task scheduling method.- Chapter 3: A Bimodal System for Emotion Recognition via Computer of Known or Unknown Persons in Normal or Fatigue Situations.- Chapter 4: Homeodynamic modelling of complex abnormal biological processes.- Chapter 5: Engaging Students in Basic Cybersecurity Concepts Using Digital Game-Based Learning: Computer Games as Virtual Learning Environments.

“From the point of view of an active researcher, I feel that computer scientists and technologists, including professors, graduate/doctoral students and other advanced researchers, will find this book a valuable resource for extending their research further and benefiting it from progress in Computer Science fields other than the ones into which they specialize. … I, thus, hand my congratulations to the Editors for their superb work and I provide my highest and unreserved recommendation to it.” (Sotirios Kotsiantis, Intelligent Decision Technologies, Vol.15 (2), 2021)

• Chapter 1: This is Just Metadata: From no Communication Content to User Profiling, Surveillance and Exploitation.- Chapter 2: A fuzzy task scheduling method.- Chapter 3: A Bimodal System for Emotion Recognition via Computer of Known or Unknown Persons in Normal or Fatigue Situations.- Chapter 4: Homeodynamic modelling of complex abnormal biological processes.- Chapter 5: Engaging Students in Basic Cybersecurity Concepts Using Digital Game-Based Learning: Computer Games as Virtual Learning Environments.

“From the point of view of an active researcher, I feel that computer scientists and technologists, including professors, graduate/doctoral students and other advanced researchers, will find this book a valuable resource for extending their research further and benefiting it from progress in Computer Science fields other than the ones into which they specialize. … I, thus, hand my congratulations to the Editors for their superb work and I provide my highest and unreserved recommendation to it.” (Sotirios Kotsiantis, Intelligent Decision Technologies, Vol.15 (2), 2021)

• Chapter 1: This is Just Metadata: From no Communication Content to User Profiling, Surveillance and Exploitation.- Chapter 2: A fuzzy task scheduling method.- Chapter 3: A Bimodal System for Emotion Recognition via Computer of Known or Unknown Persons in Normal or Fatigue Situations.- Chapter 4: Homeodynamic modelling of complex abnormal biological processes.- Chapter 5: Engaging Students in Basic Cybersecurity Concepts Using Digital Game-Based Learning: Computer Games as Virtual Learning Environments.