In this chapter we will discuss the concepts of “presence” (Inner Presence) and “social presence” (Co-presence) within a cognitive and ecological perspective. Specifically, we claim that the concepts of “presence” and “social presence” are the possible links between self, action, communication and culture. In the first section we will provide a capsule view of Heidegger’s work by examining the ...

This paper explores the cognitive presence of the learners in MOOCs through using a (computational) linguistic analysis of the learners’ Point-of-View as an indicator for cognitive presence. The linguistic analysis of the written language as a medium of interaction by the students in the context of MOOCs shows hallmarks of cognitive disengagement and low cognitive presence

This document describes how the Sieve email filtering language, along with some extensions, can be used to create automatic replies to incoming electronic mail messages based on the address book and presence information of the recipient.

We studied how actual users find items of interest in today’s complex, recommender-rich information environments, what role recommenders play in it, and if recommenders increase perceived social presence. We used applied ethnography, on-location observation and interviewing, and Amazon as the environment to get an accurate picture of user activity. We found that users are increasingly relying o...

More and more companies allow users to bring their own IT devices to the workplace. As a result, an increased heterogeneity of hardand software makes it challenging to deliver central IT support. Therefore, employees might increasingly rely on the help of their colleagues. In such a user-to-user support scenario, traditional communication media such as text chat and telephone are used. In this ...

Companies seeking to achieve significant benefits through e-business need to create an effective and usable web presence to ensure successful interaction and communication with their employee, partners and customers. Despite the wealth of information available on web ease-of-use or usability, there is no standard, allencompassing framework defining web site effectiveness. Hence it is difficult ...

This paper contributes to the growing body of knowledge which identifies benefits for Blended Learning in the understanding of social processes role. It reports on an exploratory study into the role of social presence in blended learning environment. Employing a qualitative methodology, the study sought to understand social presence of learners in Blended Learning environment. The paper present...

collaborative spectrum sensing (css) is an effective approach to improve the detection performance in cognitive radio (cr) networks. inherent characteristics of the cr have imposed some additional security threats to the networks. one of the common threats is primary user emulation attack (puea). in puea, some malicious users try to imitate primary signal characteristics and defraud the cr user...

Status of this Memo This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. Abstract This document describes an exten...

In this paper, we introduce the notion of Online Presence, a concept related to user’s presence on online services. We identify interoperability issues in the field of exchange of the online presence data and propose a solution in building a common model for semantic representation of online presence data. We present the Online Presence Ontology (OPO) together with benefits such an ontology cou...