scholarly journals Embedded model discrepancy: A case study of Zika modeling

2020 ◽  
Vol 30 (5) ◽  
pp. 051103 ◽  
Author(s):  
Rebecca E. Morrison ◽  
Americo Cunha
Keyword(s):  
Embedded Model ◽  
Model Discrepancy

scholarly journals Embedded model control, performance limits: A case study

DYNA ◽  
2017 ◽  
Vol 84 (201) ◽  
pp. 267
Author(s):  
Wilber Acuña-Bravo ◽  
Andrés Guillermo Molano-Jiménez ◽  
Enrico Canuto
Keyword(s):  
Control Performance ◽  
Performance Limits ◽  
Model Control ◽  
Embedded Model

Este trabajo presenta el análisis e implementación de dos leyes de control aplicadas en un caso de estudio. La primera y el enfoque principal de este trabajo es el control a modelo embebido cuyas características fundamentales son la cancelación activa de disturbios y el manejo de incertidumbres. Aquí se prueban diferentes configuraciones para los parámetros del control logrando que los límites en el desempeño queden expuestos debido a las limitaciones del modelo. Por otro lado se encuentra la ley de control PID clásica basada en acciones sobre el error de trayectoria como un paradigma de control que no requiere de un modelo para su ejecución. La implementación y pruebas se hacen en una planta didáctica comercial, donde se verifican las propiedades de desempeño y rechazo a perturbaciones mostrando que aun en este simple proceso el desempeño puede verse degradado debido a la ausencia de un modelo de la planta embebido en la ley de control

A case study of an embedded system in prison to support individuals with learning difficulties and disabilities in the criminal justice system

2015 ◽  
Vol 6 (2) ◽  
pp. 112-124 ◽  
Author(s):  
Amanda Kirby ◽  
Lisette Saunders
Keyword(s):  
Criminal Justice ◽  
Embedded System ◽  
Criminal Justice System ◽  
Justice System ◽  
Assessment Tool ◽  
Learning Difficulties ◽  
Content Type ◽  
Novel Approach ◽  
Embedded Model

Purpose – The purpose of this paper is to describe first the rationale for an embedded process for learning difficulties and disabilities in the criminal justice system (CJS). This is followed by an example of how this approach has been delivered in one offender setting. The use of a novel computerised assessment tool is described, and the way it has been used to undertake the initial screening processes and provide person centred guidance for staff and the individuals. The bio-psychosocial approach to supporting individuals moving through the CJS is suggested as an approach that could be potentially used in other prisons settings. The paper also highlights some of the current challenges in doing so. Design/methodology/approach – This paper presents a review of the currently literature to provide a rationale for the example of the embedded approach taken. Findings – The approach, aligns to the challenges cited in much of the research. Practical implications – The model presented can be used as a basis for potentially delivering such a system in other prisons settings and to highlight areas that remain contentious. Social implications – The embedded model represents a bio-psychosocial approach to supporting individuals moving through the CJS so has important implications. Originality/value – This is novel approach.

scholarly journals ‘Getting into the flow of university’: a coaching approach to student peer support

2017 ◽  
Vol 3 (1) ◽  
pp. 262
Author(s):  
Digby Warren ◽  
Wilko Luebsen
Keyword(s):  
First Year ◽  
Peer Leaders ◽  
Mentor Training ◽  
Peer Mentor ◽  
First Year Students ◽  
Embedded Model ◽  
Rich Data ◽  
Coaching Approach

As Keenan (2014) reports, peer-led learning schemes are gaining momentum globally, bringing benefits to both ‘peer leaders’ and their mentees. Such schemes can also be vehicles for student engagement and supporting successful transition. In its Peer-Assisted Student Success (PASS) scheme, London Metropolitan University has developed a course-embedded model in which trained ‘Success Coaches’ provide academic and personal guidance to first-years on all undergraduate degree programmes via in-class groups and one-to-one support. Another distinctive feature is its adoption of a coaching philosophy in the role of student mentoring. This case study explores the experiences and benefits accrued by both first-year students and Success Coaches from this coaching style, drawing on rich data collected via focus groups using images as a form of ‘arts-based inquiry’. Themes emerging from the data illuminate the nature of the peer relationship. The paper also considers implications, for peer-mentor training, of incorporating a coaching approach.   

scholarly journals Sequential Bayesian History Matching for Model Calibration

2019 ◽  
Author(s):  
Paul Gardner ◽  
Charles Lord ◽  
Robert J. Barthorpe
Keyword(s):  
Computer Model ◽  
History Matching ◽  
Form Errors ◽  
Model Form ◽  
Complex Engineering ◽  
Model Discrepancy ◽  
Biased Estimates ◽  
Numerical Case Study ◽  
Complex Computer

Abstract Computer models, whilst frequently utilised for many complex engineering tasks, suffer from model form errors due to some level of simplification and/or absence of certain physics. These model form errors lead to a mismatch between model outputs and observational data when the ‘true’ parameters are known; a phenomenon known as model discrepancy. Calibration of a computer model without consideration of this type of uncertainty therefore leads to biased estimates of system parameters. Bayesian history matching (BHM) is one such method of calibrating a computer model whilst accounting for uncertainties associated with model discrepancy. The ‘likelihood-free’ technique assesses the system parameter domain using an emulator of the complex computer model in order to discard parameter combinations based on how unlikely they were to have produced a known observation response. BHM can be approached in an iterative manner, allowing sequential-based approaches to be used in selecting new computer model evaluations that will maximise the improvement in emulator performance. This paper develops techniques for sequentially selecting new computer model evaluations, reducing the total number of evaluations and increasing improvements in the emulator. The developed metrics and criteria are outlined with a demonstration on a numerical case study in order to visually demonstrate their applicability and increase in computational efficiency.

The Genesis and Internal Dynamics of El Salvador's People's Revolutionary Army, 1970–1976

2014 ◽  
Vol 38 (01) ◽  
pp. 102-129
Author(s):  
ALBERTO MARTÍN ÁLVAREZ ◽  
EUDALD CORTINA ORERO
Keyword(s):  
Latin America ◽  
El Salvador ◽  
Early Years ◽  
Left Wing ◽  
Internal Dynamics ◽  
Internal Coherence ◽  
The 1960S

AbstractUsing interviews with former militants and previously unpublished documents, this article traces the genesis and internal dynamics of the Ejército Revolucionario del Pueblo (People's Revolutionary Army, ERP) in El Salvador during the early years of its existence (1970–6). This period was marked by the inability of the ERP to maintain internal coherence or any consensus on revolutionary strategy, which led to a series of splits and internal fights over control of the organisation. The evidence marshalled in this case study sheds new light on the origins of the armed Salvadorean Left and thus contributes to a wider understanding of the processes of formation and internal dynamics of armed left-wing groups that emerged from the 1960s onwards in Latin America.

Culture and the plasticity of perception

2020 ◽  
Vol 43 ◽  
Author(s):  
Michael Lifshitz ◽  
T. M. Luhrmann
Keyword(s):  
Cultural Context ◽  
Sensory Experience ◽  
Cultural Learning ◽  
The World

Abstract Culture shapes our basic sensory experience of the world. This is particularly striking in the study of religion and psychosis, where we and others have shown that cultural context determines both the structure and content of hallucination-like events. The cultural shaping of hallucinations may provide a rich case-study for linking cultural learning with emerging prediction-based models of perception.

Dual systems for all: Higher-order, role-based relational reasoning as a uniquely derived feature of human cognition

2019 ◽  
Vol 42 ◽  
Author(s):  
Daniel J. Povinelli ◽  
Gabrielle C. Glorioso ◽  
Shannon L. Kuznar ◽  
Mateja Pavlic
Keyword(s):  
Temporal Reasoning ◽  
Higher Order ◽  
Important Case ◽  
Human Cognition ◽  
Relational Reasoning ◽  
Dual Systems ◽  
First Order ◽  
Reasoning System ◽  
Role Based

Abstract Hoerl and McCormack demonstrate that although animals possess a sophisticated temporal updating system, there is no evidence that they also possess a temporal reasoning system. This important case study is directly related to the broader claim that although animals are manifestly capable of first-order (perceptually-based) relational reasoning, they lack the capacity for higher-order, role-based relational reasoning. We argue this distinction applies to all domains of cognition.

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