Modelling situation awareness for Context-aware Decision Support

Abstract

Situation awareness modelling is popularly used in the command and control domain for situation assessment and decision support. However, situation models in real-world applications are typically complex and not easy to use. This paper presents a Context-aware Decision Support (CaDS) system, which consists of a situation model for shared situation awareness modelling and a group of entity agents, one for each individual user, for focused and customized decision support. By incorporating a rule-based inference engine, the entity agents provide functions including event classification, action recommendation, and proactive decision making. The implementation and the performance of the proposed system are demonstrated through a case study on a simulated command and control application.

User interface design for situation-aware decision support systems

“…Context awareness was introduced by Schilit [32] to develop an application that adapts to the location of use, nearby people and objects, and the change of those objects over time. With technology advancement and the growth of mobile computing in recent times, context awareness has attracted greater research attention [16]. Context-aware user interfaces allows systems to dynamically adapt to changes in a user's task domain by updating relevant information and service provision.…”

“…The projection layer uses knowledge of the current state of the environment to predict its future state. Situation awareness and context awareness both focuses on information about the state of the environment in which these tasks are carried out [16]. Situation-aware systems exploit explicit and implicit inputs to provide information tailored to users' tasks in different situations.…”

Using Case-based Reasoning for Situation Classification on Campus Violence

“…Feng et al [4] used rules in a computational model of situation awareness for exploiting goal-based contextual information to achieve user specific situation awareness. Agents, one for each individual operator, communicate with the situation model and extract information of relevance for presentation to their respective users in accordance to the user context.…”

“…Agents, one for each individual operator, communicate with the situation model and extract information of relevance for presentation to their respective users in accordance to the user context. Defining necessary heuristics based on bounded definition of the domain (command and control) and responding to each and every new development was difficult due to Feng's rulebased decision support engine [4].…”

Situation awareness in context-aware case-based decision support

“…In the domain of military command and control, Feng et al [8] investigated situation awareness with context awareness (CA). A context aware system uses the context to provide relevant information and services to the user [21].…”