How to provide users a positive experience during interaction with information (i.e., the “Information eXperience” (IX)) is still an open question. As a starting point, this work investigates how the emotion of interest can be influenced by modifying the complexity of the information presented to users. The appraisal theory of interest suggests a “sweet spot” where interest will be at its peak:...

Haptic interaction has for a long time been a promise that has not fully been realized in everyday technology due to several reasons. Already for more than 20 years the research community in the field of human-technology interaction has identified multimodal interaction as a potential next mainstream interaction paradigm to replace graphical user interfaces. At the same time, both personal comp...

It is well known that perceiving another's body movements activates corresponding motor representations in an observer's brain. It is nevertheless true that in many situations simply imitating another's actions would not be an effective or appropriate response, as successful interaction often requires complementary rather than emulative movements. At what point does the automatic tendency to mi...

Internet is the main tool for accessing and disseminating information in the knowledge society, and human languages provide the basic support for such communication process. The Region of Madrid intends making knowledge the basis of its economic, social and human development. For this purpose, it is necessary developing and taking advantage of the impact of such communication channel. High leve...

Lewbel and Pendakur (2008) develop the idea of implicit Marshallian demands. Implicit Marshallian demand systems allow the incorporation of both unobserved preference heterogeneity and complex Engel curves into consumer demand analysis, circumventing the standard problems associated with combining rationality with either (or both) unobserved heterogeneity and high rank in demand. They also deve...

The concepts of Autonomic and Organic Computing (AC/OC) promise to make modern computer systems more secure and easier to manage. In this paper, we extend the observer/controller architecture typically used in AC/OC systems towards a new target area – embedded real-time systems. As a result we present a two-layered management architecture. We discuss aspects of internal communication and design...

Some short pseudo-random sequences are used in spread spectrum communications. If a cryptographically secure pseudo-random sequence is used, the communication becomes a cryptographic communication. Moreover, we propose to use another non secret communication and a secret spread spectrum communication with a high ratio to hide the secret communication.