One key to providing intelligent assistance to workstation users is to construct machine-understandable descriptions of the user’s ongoing projects, or activities, (e.g., their committee memberships, writing projects, conference organization activities), and indices describing which emails, meetings, and colleagues relate to which activity. This paper presents a program, ActivityExtractor, whic...

This study identifies multiple profiles of successful essays via a cluster analysis approach using linguistic features reported by a variety of natural language processing tools. The findings from the study indicate that there are four profiles of successful writers for the samples analyzed. These four profiles are linguistically distinct from one another and demonstrate that expert human rater...

Physical layer security which safeguards data confidentiality based on the information-theoretic approaches has received significant research interest recently. The key idea behind physical layer security is to utilize the intrinsic randomness of the transmission channel to guarantee the security in physical layer. The evolution towards 5G wireless communications poses new challenges for physic...

Email has met tremendous popularity over the past few years. People are sending and receiving many messages per day, communicating with partners and friends, or exchanging files and information. Unfortunately, the phenomenon of email overload has grown over the past years becoming a personal headache for users and a financial issue for companies. In this chapter, we will discuss how disciplines...

The first work on email security began in 1984, which resulted the Privacy Enhanced Mail (PEM) specifications. Two years later, was done as part of Secure Data Network System (SDNS) sponsored by U.S. Government, resulting Message Security Protocol (MSP). PEM and MSP both influenced development most popular Internet protocol, is MIME (S/MIME). This article provides insight into early history sec...