Pervasive computing systems use sensing, computing and communication capabilities to observe and respond to environmental phenomena. Such systems will eventually enable computers to seamlessly integrate into everyday life. They have many potential applications in the office, home, healthcare, gaming, environmental monitoring and public transportation. Healthcare is one of the most exciting exam...

(ABSTRACT) Situation (al) awareness (SA) is critical to analyze, predict and perform tasks effectively in a dynamic environment. Many studies on SA have ignored network dynamism and its effect on SA, focusing on simple environments. Many studies involving the network and SA have refrained from attempting to model information space dynamism (i.e. dynamic scenarios which may have more than one pr...

A computational model of attention and situation awareness (SA) was developed and used to predict pilot errors in the task of taxiing from runway to terminal. The model incorporates a lowlevel perception/attention module and a higher-level belief-updating module. Attentional scanning is controlled by bottom-up and top-down processes, with the effectiveness of top-down guidance varying as a func...

The use of radar and camera for situation awareness is gaining popularity in automotive safety applications. In this thesis situation awareness consists of accurate estimates of the ego vehicle’s motion, the position of the other vehicles and the road geometry. By fusing information from different types of sensors, such as radar, camera and inertial sensor, the accuracy and robustness of those ...

Organizations in the maritime safety and security domain have to cope with complex situations at sea, harbors, and rivers to maintain acceptable levels for safety and security. For safety, traffic rules apply at sea. Yet in areas with heavy traffic, it is difficult to tell which vessels adhere to traffic rules and which ones do not. For security, suspicious activities such as drugs smuggling ne...

Information overload is a severe problem for operators of large-scale control systems, as such systems typically provide a vast amount of information about a large number of real-world objects. Systems supporting situation awareness have recently gained attention as way to help operators to grasp the overall meaning of available information. To fulfill this task, data quality has to be ensured ...

Real-time educational groupware systems allow physically separated learners to work together in a shared virtual workspace at the same time. These systems do not yet approach the interaction richness of a face-to-face learning situation. In particular, one element poorly supported is workspace awareness: the up-to-the-minute knowledge a student requires about other students’ interactions with t...

This paper presents the development and testing of a Virtual Camera (VC) system to improve astronaut and mission operations situation awareness while exploring other planetary bodies. In this embodiment, the VC is implemented using a tablet-based computer system to navigate through inter· active database application. It is claimed that the advanced interaction media capability of the VC can imp...

Situation awareness is an essential cognitive-domain object of the command and control decision process. This paper places an organization’s SA in the context of OODA (Observe, Orient, Decide, Act) interaction between opposing teams. In addition, a hierarchical SA structure is used to organize SA generated from the physical entities in the corresponding physical domain. A rich Modal Logic-based...

We present tools to visualize density, clustering, and lethality assessment that help a military commander achieve situation awareness (SA) on the battlefield. For the density computation, we provide a geometry-based, image-based, and hybrid approach to tackle the problem. We choose proximity-based clustering as a suitable definition for our application. Based on this clustering definition, we ...