scholarly journals DECISION STRATEGIES AND COGNITIVE ADAPTATIONS TO ECOLOGY

2017 ◽  
Vol 50 (1) ◽  
pp. 93-108
Author(s):  
Jan Poleszczuk
Keyword(s):  
Simple Model ◽  
Decision Rules ◽  
Basic Structure ◽  
Adaptation Process ◽  
Perceptual Space ◽  
Decision Strategies ◽  
Process Identification ◽  
Ecological Conditions ◽  
Adaptive Rationality ◽  
Selection Of

Abstract In this paper, I discuss the concept of adaptive rationality. I present a simple model of ecology and the set of decision rules. The basic structure of the process of cognitive adaptation to ecology is described as a structure comprising (1) perceptual space, (2) a function valuating perceived items, (3) a set of available decision rules and (4) the adaptation process - identification and selection of the best strategies in given ecological conditions. The presented model of ecosystem allows a conclusion that completely opposite strategies may be compatible with the assumption of adaptive rationality.

Dynamic Characterization of Brushless DC Motors and Propellers for Flight Applications

2017 ◽  
Vol 05 (03) ◽  
pp. 159-167 ◽  
Author(s):  
Dominic Muzar ◽  
Eric Lanteigne ◽  
Justin McLeod
Keyword(s):  
Simple Model ◽  
Brushless Dc Motor ◽  
Dynamic Characterization ◽  
Brushless Dc Motors ◽  
Brushless Dc ◽  
Dc Motors ◽  
Simple Motor ◽  
Aerial Vehicle ◽  
Selection Of

Although there exist a number of accurate unmanned aerial vehicle (UAV) thruster models, these models require the precise measurements of several motor and propeller characteristics. This paper presents a simple motor and propeller model that relies solely upon data provided by manufacturers. The model is validated by comparing theoretical motor and propeller behavior to experimental results obtained from thrust tests in a wind tunnel. The objective is to provide an accurate yet simple model to facilitate the selection of appropriate brushless DC motor and propeller combinations for flight applications.

Adaptation Application to Engine Modelling

2007 ◽  
Author(s):  
Jude Iyinbor
Keyword(s):  
Measurement Data ◽  
Engine Performance ◽  
Performance Model ◽  
Operating Conditions ◽  
Adaptation Process ◽  
Design Point ◽  
Component Map ◽  
Important Measurement ◽  
Unknown Component ◽  
Selection Of

The optimisation of engine performance by predictive means can help save cost and reduce environmental pollution. This can be achieved by developing a performance model which depicts the operating conditions of a given engine. Such models can also be used for diagnostic and prognostic purposes. Creating such models requires a method that can cope with the lack of component parameters and some important measurement data. This kind of method is said to be adaptive since it predicts unknown component parameters that match available target measurement data. In this paper an industrial aeroderivative gas turbine has been modelled at design and off-design points using an adaptation approach. At design point, a sensitivity analysis has been used to evaluate the relationships between the available target performance parameters and the unknown component parameters. This ensured the proper selection of parameters for the adaptation process which led to a minimisation of the adaptation error and a comprehensive prediction of the unknown component and available target parameters. At off-design point, the adaptation process predicted component map scaling factors necessary to match available off-design point performance data.

Construction of Cable Digital TV Head-End

2014 ◽  
Vol 933 ◽  
pp. 682-686
Author(s):  
Yang Zhang
Keyword(s):  
Transmission Line ◽  
Basic Structure ◽  
Digital Tv ◽  
Signal Source ◽  
Transport Stream ◽  
Signal Sources ◽  
Selection Of

The basic structure of Cable Digital TV Head-end System is presented in this paper. Cable Digital TV Head-end connected between the TV Signal Source and the Transmission Line is a system which can convert a variety of signal sources into a transport stream to meet the exacting standards of the transmission. The transport streams will finally be sent to service terminal by the transmitting device and the existing network. This paper gives the method of constructing Cable Digital TV Head-end System and some useful suggestions about the selection of equipment.

scholarly journals Precision Medicine

2019 ◽  
Vol 6 (1) ◽  
pp. 263-286 ◽  
Author(s):  
Michael R. Kosorok ◽  
Eric B. Laber
Keyword(s):  
Health Care ◽  
Precision Medicine ◽  
Decision Rules ◽  
Data Driven ◽  
Care Process ◽  
Treatment Regimes ◽  
Specific Diet ◽  
Recommended Action ◽  
Selection Of

Precision medicine seeks to maximize the quality of health care by individualizing the health-care process to the uniquely evolving health status of each patient. This endeavor spans a broad range of scientific areas including drug discovery, genetics/genomics, health communication, and causal inference, all in support of evidence-based, i.e., data-driven, decision making. Precision medicine is formalized as a treatment regime that comprises a sequence of decision rules, one per decision point, which map up-to-date patient information to a recommended action. The potential actions could be the selection of which drug to use, the selection of dose, the timing of administration, the recommendation of a specific diet or exercise, or other aspects of treatment or care. Statistics research in precision medicine is broadly focused on methodological development for estimation of and inference for treatment regimes that maximize some cumulative clinical outcome. In this review, we provide an overview of this vibrant area of research and present important and emerging challenges.

A Contingency Model for the Selection of Decision Strategies

1978 ◽  
Vol 3 (3) ◽  
pp. 439-449 ◽  
Author(s):  
Lee Roy Beach ◽  
Terence R. Mitchell
Keyword(s):  
Decision Strategies ◽  
Contingency Model ◽  
Selection Of

Selection of Decision Strategies After Conscious and Unconscious Thought

2013 ◽  
Vol 26 (5) ◽  
pp. 477-488 ◽  
Author(s):  
Thorsten Pachur ◽  
Eveline Aebi Forrer
Keyword(s):  
Unconscious Thought ◽  
Decision Strategies ◽  
Selection Of

Systematic investigation of the decision process in homœopathy

1992 ◽  
Vol 81 (01) ◽  
pp. 13-17 ◽  
Author(s):  
R. Liagre ◽  
R.A. Van Haselen
Keyword(s):  
Otitis Media ◽  
Decision Process ◽  
Acute Otitis Media ◽  
Systematic Investigation ◽  
Decision Strategies ◽  
Pilot Studies ◽  
Individualized Decision ◽  
Selection Of

AbstractPlans for two pilot studies concerning the homœopathic treatment of chronic and acute otitis media are presented. The intention of these studies is not only to look at the efficacy of the homœopathic treatment as a whole but also to investigate the efficacy of the individualized decision strategies. Based on the homœopathic literature a selection of decision strategies has been made. The reader is asked to criticize and supplement the chosen decision strategies.

Information Model as an Instrument for the Analysis of News Discourse

2016 ◽  
Vol 5 (1) ◽  
pp. 7-11
Author(s):  
Добросклонская ◽  
T. Dobrosklonskaya
Keyword(s):  
Basic Structure ◽  
Information Model ◽  
Media Content ◽  
Special Importance ◽  
Media Discourse ◽  
News Discourse ◽  
Language Studies ◽  
Wide Range ◽  
Ideological Context ◽  
Selection Of

Under the conditions of information society special importance is attached to a systematic and consistent study of the news texts, which are regarded as the pinnacle of all media discourse, its basic structure around which all media content is organized. At present the study of news texts applies a wide range of different methods traditionally used for the analysis of socially and culture bound discourse – linguistic, sociological, discursive, contentanalysis etc. However the method specifically designed for the analysis of the news has not been fully described yet. To fill in this gap the author offers to use “the information model” that was designed within the framework of media linguistics – a relatively new but already firmly established branch of language studies. The article focuses on the use of information model for the analysis of news discourse, specifically dealing with all its elements – selection of facts, interpretation, shaping images, forming stereotypes and cultural-ideological context.

A note on the selection of random variables under a sum constraint

1991 ◽  
Vol 28 (4) ◽  
pp. 919-923 ◽  
Author(s):  
Wansoo Rhee ◽  
Michel Talagrand
Keyword(s):  
Decision Rules ◽  
Stopping Time ◽  
Random Variables ◽  
Expected Number ◽  
Time Argument ◽  
Selection Of

Consider an i.i.d. sequence of non-negative random variables (X1, · ··, Xn) with known distribution F. Consider decision rules for selecting a maximum number of the subject to the following constraints: (1) the sum of the elements selected must not exceed a given constant c > 0, and (2) the must be inspected in strict sequence with the decision to accept or reject an element being final at the time it is inspected. Coffman et al. (1987) proved that there exists such a rule that maximizes the expected number En(c) of variables selected, and determined the asymptotics of En(c) for special distributions. Here we determine the asymptotics of En(cn) for very general choices of sequences (cn) and of F, by showing that En(c) is very close to an easily computable number. Our proofs are (somewhat deceptively) very simple, and rely on an appropriate stopping-time argument.

Sign in / Sign up

Export Citation Format

Share Document