Sharif Digital Repository

Ambient Intelligence is a new paradigm in information technology that creates environments able to detect and respond to users needs, actions, behaviors and feelings. In the presence of interaction conflicts, user trust plays an important role in accepting Ambient Intelligence environments for living, working, etc. Our main hypothesis is that higher conflict density results in a greater loss of trust in mixed-initiative Ambient Intelligence environments. In this thesis, we propose a comprehensive research method for measuring trust in Ambient Intelligence environments using both crowdsourcing and university surveys. We conduct both web-based experiments and physical experiments to gather... 

Monitoring of activities of elderly and intelligent decisions about their living environment is a key challenge in smart environments. In the case of such challenges, correctness of system performance is highly dependent on how the model is designed. In the ambient intelligence (AMI) modeling, formal modeling is one of the best approaches because it supports certainty. In addition, time, location and mobility in AMI are crucial requirements, particularly in emergency treatment services. Ambient calculus is a formalism for describing mobility, process migration and message transfer, but it cannot express metric time duration. In this paper we propose an extension of ambient calculus with time... 

The aim of this thesis is the requirements analysis, design, proof-of-concept implementation and user evaluation of a novel user interface that is specifcally developed to support interaction with ambient intelligence systems. The focus of the user interface is rather on interacting with ambient intelligence, a meta system that comes into existence as the result of the coherent behavior and collective intelligence of interconnected smart devices and systems of a domain such as meeting rooms or smart homes.To design the user interface, we conducted an empirical user and task analysis and elaborated requirements, defning the scope of human interaction with ambient intelligence. The captured... 

Ambient intelligence is a new paradigm in human computer interaction in which smart actor interact with the surrounding environment and be helped in to reach their goals. One of the main principles in smart environments is the interaction between user and the system. Better interaction leads to a better user satisfaction. In explicit interaction, context plays an important role in interaction quality. One of the main parameter in interaction is the environment complexity. Environment complexity itself consists of other factor such as size of the room, number of devices, density of devices, size of the devices and etc. In this study, we have investigate the effect of two factor, environment... 

Ambient Intelligence (AmI) is an environment in which devices are embedded and connected to each other with a communication network, working in concert to predict users’ wishes according to the context of the environment (devices and people) to help them with their everyday activities. An ambient intelligent environment should be context-aware. One of the most complicated problems in context-aware computations is recognition of the activities in which users of the environment are engaged. These activities could be recognized by means of the information hidden in communication networks of the devices, especially different sensors embedded in the environment to ease up the process. Most of... 

One of the challenges in the field of Ambient Intelligence is empowering end-user to determine the level of system interference in the control of the environment. One approach to answer to this challenge is using End-user Development to determine the rate of system intelligence as well as develop the behavior of the system by the user himself. In this way, the user introduces his intended behavior to the system so that the system operates in accordance with it.In this research, we have provided end-user development for an intelligent environment considering children as the end-user; for this purpose, we have designed a game-based user interface, allowing children to be involved in the... 

Nowadays there are various means in the field of orbital mechanics used in different levels and their accuracy depends on the theory and complexity of the governing equations used in their development. Most of them just simulate the motion of an orbiting satellite while there exist some commercial products able to provide the user with the orbital performance specifications and almost none of them have a module to design an orbit, based on a required performance such as specific coverage / ground track, shadow/light duration, etc .... Although satisfying performance requirements and a set of orbital elements simultaneously only seems to be possible for some particular orbits, there is an... 

The energy consumed by lighting, heating, ventilating, and air conditioning (LHVAC) systems have been increasing over the last decades. Thus, improving the efficiency of LHVAC systems has gained the attention of industry and academia. This concern has posed challenges for controlling and optimizing LHVAC systems. The traditional methods, such as on/off and PID approaches, usually involve conditions and parameters that may not hold in practice since LHVAC systems are complex, nonlinear, and dynamic. Also, controllers are one of the important components of a method for its efficiency. This research focuses on controlling LHVAC systems. Fuzzy logic controllers one of the best controller for...