1,296 research outputs found
GHOST: experimenting countermeasures for conflicts in the pilot's activity
An approach for designing countermeasures to cure
conflict in aircraft pilotsâ activities is presented,
both based on Artificial Intelligence and Human
Factors concepts.
The first step is to track the pilotâs activity, i.e. to
reconstruct what he has actually done thanks to the
flight parameters and reference models describing
the mission and procedures. The second step is
to detect conflict in the pilotâs activity, and this is
linked to what really matters to the achievement
of the mission. The third step is to design accu-
rate countermeasures which are likely to do bet-
ter than the existing onboard devices. The three
steps are presented and supported by experimental
results obtained from private and professional pi-
lots
Towards an HLA Run-time Infrastructure with Hard Real-time Capabilities
Our work takes place in the context of the HLA standard and its application in real-time systems context. The HLA standard is inadequate for taking into consideration the different constraints involved in real-time computer systems. Many works have been invested in order to providing real-time capabilities to Run Time Infrastructures (RTI) to run real time simulation. Most of these initiatives focus on major issues including QoS guarantee, Worst Case Transit Time (WCTT) knowledge and scheduling services provided by the underlying operating systems. Even if our ultimate objective is to achieve real-time capabilities for distributed HLA federations executions, this paper describes a preliminary work focusing on achieving hard real-time properties for HLA federations running on a single computer under Linux operating systems. Our paper proposes a novel global bottom up approach for designing real-time Run time Infrastructures and a formal model for validation of uni processor to (then) distributed real-time simulation with CERTI
HLA high performance and real-time simulation studies with CERTI
Our work takes place in the context of the HLA standard and its application in real-time systems context. Indeed, current HLA standard is inadequate for taking into consideration the different constraints involved in real-time computer systems. Many works have been invested in order to provide real-time capabilities to Run Time Infrastructures (RTI). This paper describes our approach focusing on achieving hard real-time properties for HLA federations through a complete state of the art on the related domain. Our paper also proposes a global bottom up approach from basic hardware and software basic requirements to experimental tests for validation of
distributed real-time simulation with CERTI
Validation in Second Language Classroom Research: The Role of Observation
The purpose of this paper is to explore more precisely how observational analyses of classroom interaction can be validated, and further, how the validation of claims about instructional variables (such as the effectiveness of programs, teaching methods, syllabus changes, materials, rule presentations, and so on) depends on the application of valid observational analyses. Validity, which has many aspects but refers in essence to the determination of the "truth" of an analysis or theory, is a fundamental goal in researchers' efforts to understand and predict language learning and teaching outcomes. The paper will first briefly describe the place of observation in research validation, then show the applicability of validation in second language classroom research with respect to different methodological orientations, then illustrate three different approaches to validation of instructional research by means of observation
Academic Listening
This paper surveys the principal findings of research in academic listening and their implications for teachers and second language learners. Research focused on academic listening for non-native users of a language has been concerned with (a) the nature of academic speech in lectures (lecture style), structure and content, including aspects of use of visuals, and factors influencing the comprehension of lecture content); (b) the processes second language learners undergo while listening (goals, strategies, construction of acquisition of the second language; and (d0 the training of second language learners as listeners in academic contexts
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