20,742 research outputs found
A Concurrent Fuzzy-Neural Network Approach for Decision Support Systems
Decision-making is a process of choosing among alternative courses of action
for solving complicated problems where multi-criteria objectives are involved.
The past few years have witnessed a growing recognition of Soft Computing
technologies that underlie the conception, design and utilization of
intelligent systems. Several works have been done where engineers and
scientists have applied intelligent techniques and heuristics to obtain optimal
decisions from imprecise information. In this paper, we present a concurrent
fuzzy-neural network approach combining unsupervised and supervised learning
techniques to develop the Tactical Air Combat Decision Support System (TACDSS).
Experiment results clearly demonstrate the efficiency of the proposed
technique
Designing Decision and Collaboration Support Technology for Operators in Multi-UAV Operations Teams
Effective team collaboration and timely decision-making significantly influence the outcome of
time-sensitive military operations. The increasing complexity introduced by the recent move
towards network centric operations (NCO) in U.S. military operations provides additional
challenges for efficient decision-making. Future operations will include co-located and
distributed teams composed of operators from difference services, often at different global
locations. Military operations which require extremely quick decisions, such as operations
dealing with time-sensitive targets (TST) like improvised explosive devices (IEDs), are
particularly challenging in NCO teaming environments. Operators in TST environments not
only have to manage overwhelming amounts of target-related information, but also have the
overhead of communicating and coordinating with co-located and distributed team members.
Given the increasing trend for modern hostile forces to employ unconventional weapons such as
IEDs and suicide bombs, the success of TST operations are becoming critical to current and
future military operations. Providing TST teams with effective tools for communicating and
coordinating their efforts is key to enabling their success.Prepared For Boeing, Phantom Work
Identification of Command and Control Information Requirements for the Cyberspace Domain
The purpose of this research was to develop an information requirements analysis method that would provide the Director of Cyberspace Forces with the information required to support effective command and control of cyberspace. This research investigates the role of information in command and control, information in the traditional war fighting domains, cyberspace as a war fighting domain, and various methods of determining information requirements of organizations. This research produced an information requirements analysis method that is suitable for identifying the command and control information requirements of the Director of Cyberspace Forces
Aerospace medicine and biology: A continuing bibliography with indexes (supplement 324)
This bibliography lists 200 reports, articles and other documents introduced into the NASA Scientific and Technical Information System during May, 1989. Subject coverage includes: aerospace medicine and psychology, life support systems and controlled environments, safety equipment, exobiology and extraterrestrial life, and flight crew behavior and performance
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Extending the enterprise: An evaluation of ERP and EAI technologies within a Case Study organisation
It is widely understood that both Information Technology (IT) and Information Systems (IS), provide great benefits in improving the visibility of supply and value chains within and across organisational boundaries. Those enterprises which can realise the benefits of extending their core business processes outwards to clients and trading partners, will be able to create unique supply chain-dependent products and solutions. Thus, such business infrastructures have enabled organisations to expand and improve the effectiveness of their enterprise. One method to achieve this, has been to integrate Enterprise Resource Planning (ERP) systems with web-based and other IS systems, using Enterprise Application Integration (EAI) technologies. This paper seeks to investigate those factors which contributed to a case organisation’s extended enterprise experiences, by using extant ERP and EAI implementation IS evaluation criteria; and by placing the research results within the context of applicable IS research techniques in the area
4-dimensional trajectory generation algorithms for RPAS mission management systems
This paper presents the algorithms enabling real-time 4-Dimensional Flight Trajectory (4DT) functionalities in Next Generation Mission Management Systems (NG-MMS), which are the core element of future Remotely Piloted Aircraft Systems (RPAS) avionics. In particular, the algorithms are employed for multi-objective optimisation of 4DT intents in various operational scenarios spanning from online strategic to tactical and emergency tasks. The adopted formulation of the multi-objective 4DT optimisation problem includes a number of environmental objectives and operational constraints. In particular, this paper describes the algorithm for planning of 4DT based on a multi-objective optimisation approach and the generalised expression of the cost function adopted for penalties associated with specific airspace volumes, accounting for weather, condensation trails and noise models
Design Methodology for Unmanned Aerial Vehicle (UAV) Team Coordination
Unmanned Aerial Vehicle (UAV) systems, despite having no onboard human pilots, currently
require extensive human involvement to accomplish successful mission operations. Further,
successful operations also require extensive colalboration between mission stakeholders,
including operators, mission commanders, and information consumers (e.g. ground troops relying
on intelligence reports in their area).
Existing UAV system interfaces provide little to no support for collaboration between remote
operators or for operators to collaborate with information consumers. As reliance on UAVs
continues to increase in military and civilian operations, this lack of support for collaboration will
likely become a substantial limitation of existing UAV systems.
In order to introduce effective collaboration support to UAV system interfaces, it is essential to
understand, and be able to derive system design requirements that address, the necessary group
interactions that occur in UAV task enviroments. However, few collaborative requirements
analysis methods exist, and to our knowledge, no method exists that captures design requirements
for collaborative decision making in complex, time-critical environments.
This report describes the development of a new design requirements analysis method for deriving
information and functional requirements that address the collaboration needs of UAV (and other
complex task) operators, and the needs of stakeholders interacting with these operators. More
specifically, theis method extends a recently developed requirements analysis method, called the
Hybrid Cognitive Task Analysis (CTA) method, which enables the generation of information and
functional requirements for futuristic UAV system interfaces. The original Hybrid CTA method
focused on deriving single user system interface requirements. This work extends this method by
introducing analytic steps to identify task and decision-making dependencies between different
UAV operations collaborators.
This collaborative extension to the Hybrid CTA utilizes the notion of boundary objects, an
analytic construct commonly used in the study of group work. Boundary objects are physical or
information artifacts that cross the task boundaries between members of distinct groups.
Identifying boundary objects in complex task operations help the analyst to identify task and
decision-making dependencies between local and remote collaborators. Understanding these
dependencies helps to identify information sharing requirements that the UAV system should
support.
This report describes the analytic steps of the collaborative extension, and provides background
information on the original Hybrid CTA method and the boundary object construct. The report
also describes a project in which the new design requirements method was used to revise a
proposed set of UAV operator displays.Prepared For Boeing Phantom Work
Development of the Integrated Model of the Automotive Product Quality Assessment
Issues on building an integrated model of the automotive product quality assessment are studied herein basing on widely applicable methods and models of the quality assessment. A conceptual model of the automotive product quality system meeting customer requirements has been developed. Typical characteristics of modern industrial production are an increase in the production dynamism that determines the product properties; a continuous increase in the volume of information required for decision-making, an increased role of knowledge and high technologies implementing absolutely new scientific and technical ideas. To solve the problem of increasing the automotive product quality, a conceptual structural and hierarchical model is offered to ensure its quality as a closed system with feedback between the regulatory, manufacturing, and information modules, responsible for formation of the product quality at all stages of its life cycle. The three module model of the system of the industrial product quality assurance is considered to be universal and to give the opportunity to explore processes of any complexity while solving theoretical and practical problems of the quality assessment and prediction for products for various purposes, including automotive
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