Comparison of Gaussian process modeling software

Gaussian process fitting, or kriging, is often used to create a model from a set of data. Many available software packages do this, but we show that very different results can be obtained from different packages even when using the same data and model. We describe the parameterization, features, and optimization used by eight different fitting packages that run on four different platforms. We then compare these eight packages using various data functions and data sets, revealing that there are stark differences between the packages. In addition to comparing the prediction accuracy, the predictive variance--which is important for evaluating precision of predictions and is often used in stopping criteria--is also evaluated

Very large fractional factorial and central composite designs

The article of record as published may be located at http://dx.doi.org/10.1145/1113316.1113320We present a concise representation of fractional factorials and an algorithm to quickly generate resolution V designs. The description is based on properties of a complete, orthogonal discrete-values basis set called Walsh functions. We tabulate two-level resolution V fractional factorial designs, as well as central composite designs allowing estimation of full second-order models, for experiments involving up to 120 factors. The simple algorithm provided can be used to characterize even larger designs, and a fast Walsh transform method quickly generates design matrices from our representation

Data Farming: The Meanings and Methods Behind the Metaphor

17 USC 105 interim-entered record; under review.The article of record as published may be found at https://doi.org/10.36819/SW21.002Operational Research Society Simulation Workshop 2021Data farming captures the notion of purposeful data generation from simulation models. The ready availability of computing power has fundamentally changed the way simulation and other computational models can be used to provide insights to decision makers. Large-scale designed experiments let us grow the simulation output efficiently and effectively. We can explore massive input spaces, use statistical and visualization techniques to uncover interesting features of complex response surfaces, and explicitly identify cause-and-effect relationships. Nonetheless, there are many opportunities for research methods that could further enhance this process. I will begin with a brief overview of key differences between physical and simulation experiments, as well as current data farming capabilities and their relationship to emerging techniques in data science and analytics. I will then share some thoughts about opportunities and challenges for further improving the state of the art, and transforming the state of the practice, in this domain

Smart experimental designs provide military decision-makers with new insights from agent-based simulations

Naval Postgraduate School RESEARCH, 13, 2, Naval Postgraduate School, Monterey, CA, 2003, pp. 20-21, 57-59, 63

A Poisson basis theorem for symmetric algebras of infinite-dimensional Lie algebras

We consider when the symmetric algebra of an infinite-dimensional Lie algebra, equipped with the natural Poisson bracket, satisfies the ascending chain condition (ACC) on Poisson ideals. We define a combinatorial condition on a graded Lie algebra which we call Dicksonian because it is related to Dickson's lemma on finite subsets of $\mathbb N^k$. Our main result is: Theorem. If $\mathfrak g$ is a Dicksonian graded Lie algebra over a field of characteristic zero, then the symmetric algebra $S(\mathfrak g)$ satisfies the ACC on radical Poisson ideals. As an application, we establish this ACC for the symmetric algebra of any graded simple Lie algebra of polynomial growth, and for the symmetric algebra of the Virasoro algebra. We also derive some consequences connected to the Poisson primitive spectrum of finitely Poisson-generated algebras.Comment: 29 pages; comments welcome; v2 minor changes to introduction, submitte

Modificatoria al Art. 11° de la ley general de salud respecto de las acciones de intervención de salud en la población con trastorno mental

La presente investigación se origina por el interés de estudiar la problemática del abandono de las personas con trastornos mentales, el problema de investigación fue el siguiente: ¿Cuáles serán los cambios normativos que deban ser tenidos en cuenta para la modificatoria del artículo 11° de la ley general de salud a fin de que sean brindadas acciones de intervención de salud mental que atiendan y respondan a la realidad de la población con trastorno mental en el Perú?. Frente al problema planteado se formuló como objetivo general la propuesta de modificación del artículo 11° la ley general de salud, y como objetivos específicos i) Identificar la situación actual de las personas con trastornos mentales en el Perú, en las realidades comparadas y plano internacional, ii) Analizar la aplicabilidad y eficacia de la normativa jurídica iii) Establecer los presupuestos legales que sustenten la modificación del artículo 11° de la ley general de salud. Para la obtención de la información como estadísticas, normas, doctrina y jurisprudencia se utilizaron fichas de resumen, bibliográficas, normativas y de análisis documental. Los resultados de la investigación evidenciaron que en nuestra legislación en específico la Ley General de Salud en su artículo 11° señala una serie de garantías para las personas problemas mentales para su atención, y reinserción social, sin embargo, no establece la atención permanente a personas con enfermedades mentales en estado de abandono, las cuales, terminan regresando a vivir a las calles, luego de su tratamiento ambulatorio, siendo necesaria su modificación

Presión laboral y satisfacción laboral en docentes de una universidad privada de Trujillo

En la presente investigación descriptiva correlacional se estudia la Presión laboral y Satisfacción laboral en docentes universitarios de una entidad particular de Trujillo, en una muestra de 294 evaluados. Con el objetivo de conocer y describir la relación entre ambas, para intervenir sobre las condiciones y riesgos laborales. Dentro de este proyecto se consigna el estudio de los indicadores de Presión Laboral: Derivadas de la labor educativa en aula, De la vida cotidiana en aula, Originadas por organización administrativa y Flexibilidad respecto a tarea docente. Asimismo, los indicadores de Satisfacción Laboral: Condiciones física y/o materiales, Beneficios laborales y/o remunerativos, Políticas administrativas, Relaciones sociales, Desarrollo personal, Desempeño de tareas y Relación con la autoridad. Los resultados revelan correlaciones negativas altamente significativas y significativas entre los indicadores y las variables mismas.In the present descriptive correlational research, we study the Work Pressure and Work satisfaction in university teachers of a particular entity of Trujillo, in a sample of 294 evaluated. With the aim of knowing and describing the relationship between both, to intervene on the conditions and occupational risks. Within this project is the study of the indicators of Labour Pressure: Derivatives of the educational work in the classroom, Daily life in the classroom, Originated by administrative organization and Flexibility regarding teaching. Likewise, indicators of Work Satisfaction: Physical or material conditions, Labour and / or remunerative benefits, Administrative policies, Social relations, Personal development, Task performance and Relationship with authority. The results reveal highly significant and significant negative correlations between the indicators and the variables themselves

Percepciones de docentes acerca de las experiencias de desarrollo profesional: una preocupación que continúa

Teachers’ perceptions of professional development experiences related to process, content, and context were explored to better address leadership preparation needs. Teachers responded to the Professional Development Questionnaire, three demographic variables (teaching experience, Title 1 status, and current grade level) pertaining to the individual, and one open-ended comment field. A total of 327 teachers from a large western school district in the United States responded. The findings indicated that there were no significant differences for the three demographic grouping variables. Overall, results revealed low mean values, indicating that teachers disagreed or strongly disagreed with statements related to their professional development experiences. Teachers also indicated that their own building administrators did not value professional development. Finally, teachers’ perceptions of professional development also suggested that professional development topics were irrelevant, and that they were not provided with enough time to integrate topics into their current practice.Se exploraron las percepciones de maestros acerca de las experiencias de desarrollo profesional relacionadas con el proceso, el contenido y el contexto, a fin de responder mejor a las necesidades de preparación para el liderazgo. Maestros respondieron al Cuestionario de Desarrollo Profesional, tres variables de agrupaciones demográficas (experiencia enseñando, estado de Título 1, y nivel de grado actual) pertenecientes al individuo, y un campo de comentarios de composición abierta. Un total de 327 maestros de un distrito escolar grande del occidente de los Estados Unidos respondió. Los resultados revelaron que no había diferencias significativas para las tres variables de agrupación demográfica. En general, los resultados revelaron bajos valores promedios, indicando que los maestros estaban en desacuerdo, o fuertemente en desacuerdo con las declaraciones relacionadas a sus experiencias de desarrollo profesional. Los maestros también indicaron que sus propios administradores no valoraban el desarrollo profesional. Finalmente, las percepciones de los maestros de desarrollo profesional también sugirieron que los temas al respecto eran irrelevantes y que ellos no tenían suficiente tiempo para integrar dichas cuestiones en su práctica cotidiana

MEASURING THE ORGANIZATIONAL ANALYTICAL COMPETENCE: DEVELOPMENT OF A SCALE

The massive growth in the amount of data that companies, organizations, and society have been compelled to deal with, reinforces the need for studies on subjects such as business intelligence, business intelligence and analytics, and big data. Although certain aspects of these themes are already established in research, there is still a lack of understanding and consensus on how to combine variables to encourage better use of data. In this study, we propose a comprehensive conceptualization of a new construct -- analytical competence (ACOMP) -- comprised of three dimensions grounded in the business intelligence and analytics literature and absorptive capacity theory. To properly develop the ACOMP scale, we followed a six-step procedure and collected data from 82 organizations. We validated a nomological model where the ACOMP scale was tested as an antecedent of organizational performance regarding making decisions and learning. The results of this study provide support for ACOMP as a valid and reliable scale that is useful for both academic and managerial purposes

Unsealed Fate: The Unintended Consequences of Inadequate Safeguarding of Juvenile Records in Maine

The purpose of this report is to provide policy makers, the public and other juvenile justice system practitioners (law enforcement, Maine Department of Corrections, attorneys and judges) with information about the impact of juvenile justice involvement on young people who have come into contact with the justice system. The goal of this report is to provide policy makers, the public and juvenile justice system practitioners with research about what those closest to the system understand about how records are handled and accessed, the impact of juvenile records and what improvements could be made that are consistent with the rehabilitative and public safety goals of the juvenile justice system in Maine. To determine the extent to which individuals with juvenile records experience collateral consequences, researchers from the University of Southern Maine’s Muskie School of Public Service employed a mixedmethods approach including statute research, practice and policy review and qualitative data collection. Focus groups, interviews and surveys with more than 200 people throughout the State of Maine provided rich, well-grounded and deeply descriptive insights into the juvenile justice system and what is commonly understood about the handling of records related to system involvement. Throughout the report, case studies highlight the stories of young people and adults who have been impacted by their juvenile records. Results of this research reveal persistent misunderstanding, confusion and inconsistencies surrounding the policies, practices and laws that govern safeguarding and sealing juvenile records