Incremental Active Learning for Optimal Generalization

2000 ◽  
Vol 12 (12) ◽  
pp. 2909-2940 ◽  
Author(s):  
Masashi Sugiyama ◽  
Hidemitsu Ogawa
Keyword(s):  
Active Learning ◽  
Trigonometric Polynomial ◽  
Computer Simulations ◽  
Sampling Method ◽  
Search Method ◽  
The Other ◽  
Optimal Sampling ◽  
Sampling Locations ◽  
Input Signals ◽  
Polynomial Models

The problem of designing input signals for optimal generalization is called active learning. In this article, we give a two-stage sampling scheme for reducing both the bias and variance, and based on this scheme, we propose two active learning methods. One is the multipoint search method applicable to arbitrary models. The effectiveness of this method is shown through computer simulations. The other is the optimal sampling method in trigonometric polynomial models. This method precisely specifies the optimal sampling locations.

Association of Age, Birth order and Family Income with Psycho-social problems in Rural Adolescents

JMS SKIMS ◽  
2017 ◽  
Vol 20 (2) ◽  
pp. 90-95
Author(s):  
Noorul Amin
Keyword(s):  
Birth Order ◽  
Rural Areas ◽  
Sampling Method ◽  
Family Income ◽  
Psychosocial Problems ◽  
The Other ◽  
Self Report ◽  
Rural Adolescents ◽  
Youth Self Report ◽  
Urban And Rural Areas

Background: The present age is the age of stress. Everybody is disturbed due to one or the other reason irrespective of their age. However, adolescents are more prone to psychological and sociological disturbances.Objectives:To assess the psychosocial problems in adolescents.Methods: The study was conducted in selected schools of urban and rural areas taking 100 participants each for boys and girls using convenient sampling method. The tool used was youth self report. The data collected was analyzed using appropriate statistical methods.Results: The study revealed that 48.5% adolescents were well adjusted; 47% were having mild psychosocial problems; 4% had moderate psychosocial problems and 0.5% had severe psychosocial problems.Conclusion: Adolescents irrespective of their living places had varying degrees of psychosocial problems. JMS 2017; 20 (2):90-95

scholarly journals Nodes with the highest control power play an important role at the final level of cooperation in directed networks

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ali Ebrahimi ◽  
Marzieh Yousefi ◽  
Farhad Shahbazi ◽  
Mohammad Ali Sheikh Beig Goharrizi ◽  
Ali Masoudi-Nejad
Keyword(s):  
Free Rider ◽  
The Other ◽  
Public Goods Game ◽  
The Public ◽  
Free Riders ◽  
Control Power ◽  
Final Level ◽  
Input Signals ◽  
Tumoral Cells ◽  
Power Play

AbstractControllability of complex networks aims to seek the lowest number of nodes (the driver nodes) that can control all the nodes by receiving the input signals. The concept of control centrality is used to determine the power of each node to control the network. The more a node controls the nodes through connections in the network, the more it has the power to control. Although the cooperative and free-rider strategies and the final level of cooperation in a population are considered and studied in the public goods game. However, it is yet to determine a solution to indicate the effectiveness of each member in changing the strategies of the other members. In a network, the choice of nodes effective in changing the other nodes’ strategies, as free-riders, will lead to lower cooperation and vice versa. This paper uses simulated and real networks to investigate that the nodes with the highest control power are more effective than the hubs, local, and random nodes in changing the strategies of the other nodes and the final level of cooperation. Results indicate that the nodes with the highest control power as free-riders, compared to the other sets being under consideration, can lead to a lower level of cooperation and are, therefore, more effective in changing the strategies of the other nodes. The obtained results can be considered in the treatment of cancer. So that, destroying the tumoral cells with the highest control power should be a priority as these cells have a higher capability to change the strategies of the other cells from cooperators to free-riders (healthy to tumoral).

The evolving role of animal laboratories in physiology instruction

2005 ◽  
Vol 29 (3) ◽  
pp. 144-150 ◽  
Author(s):  
Alice W. Ra'anan
Keyword(s):  
Medical Education ◽  
Active Learning ◽  
Computer Simulations ◽  
Contributing Factors ◽  
Educational Impact

Laboratory exercises are intended to illustrate concepts and add an active learning component to courses. Since the 1980s, there has been a decline in animal laboratories offered in conjunction with medical physiology courses. The most important single reason for this is cost, but other contributing factors include the development of computer simulations, changes in medical education, and pressure from antivivisectionists. Unfortunately, the elimination of animal laboratories has occurred with relatively little consideration of the educational impact of this change. Although computer simulations are considered effective in helping students acquire basic physiological concepts, there is evidence some students acquire a more thorough understanding of the material through the more advanced and challenging experience of an animal laboratory. The fact that such laboratories offer distinct educational advantages should be taken into account when courses are designed.

scholarly journals A Double Sky-Hook Algorithm for Improving Road-Holding Property in Semi-Active Suspension Systems for Application to In-Wheel Motor

2021 ◽  
Vol 11 (19) ◽  
pp. 8912
Author(s):  
Seunghoon Woo ◽  
Donghoon Shin
Keyword(s):  
Computer Simulations ◽  
Dynamic Models ◽  
Active Suspension ◽  
The Other ◽  
Driving Mode ◽  
The Road ◽  
Suspension Systems ◽  
Active Suspension Systems ◽  
Main Disadvantage ◽  
Advanced Development

This paper presents a double sky-hook algorithm for controlling semi-active suspension systems in order to improve road-holding property for application in an in-wheel motor. The main disadvantage of the in-wheel motor is the increase in unsprung masses, which increases after shaking of the wheel, so it has poor road-holding that the conventional theoretical sky-hook algorithm cannot achieve. The double sky-hook algorithm uses a combination of damper coefficients, one from the chassis motion and the other from the wheel motion. Computer simulations using a quarter and full car dynamic models with the road conditions specified by ISO2631 showed the effectiveness of the algorithm. It was observed that the algorithm was the most effective in the vicinity of the wheel hop frequency. This paper also proposed the parameter set of the double sky-hook algorithm to differentiate the driving mode of vehicles under advanced development.

Approaches to a Concept of Simulation

2017 ◽  
Author(s):  
Inge Hinterwaldner
Keyword(s):  
Computer Simulation ◽  
Media Studies ◽  
Computer Simulations ◽  
Natural Sciences ◽  
The Other ◽  
Single Spectrum ◽  
Media Philosophy ◽  
Technical Sense ◽  
The One ◽  
Definition Of

It can be shown that the different conceptions of ‘simulation’ (the one of culture critique on the one hand and the denomination of technical applications on the other) that seem to be incompatible with each other can be reconciled on a single spectrum. Its basis in models, its replacement of reality, its lack of reference and of precession of the referent are some pejorative characteristics often emphasized in media philosophy with regard to simulations, for which the sciences applying computer simulations have no use for. It helps crossing over the views that first seem opposite to each other, but that turn out to be compatible if its root in reality is recognized and thus the representational logic is accepted at least according to the intention. The chapter combines ideas of the 'simulacrum' retrieved in the natural sciences with traces of cybernetic thinking in media studies. The whole study builds on a definition of computer simulation in the technical sense as the involvement with and the act of execution f a dynamic mathematic or procedural model that projects, depicts, or recreates a system or process.

Moving In-Frame

2022 ◽  
pp. 217-234
Author(s):  
Andi Johnson ◽  
Richard Lessey ◽  
Rebeca Ramos O'Reilly ◽  
Jessica Shi
Keyword(s):  
Active Learning ◽  
Reflective Practice ◽  
Subject Area ◽  
Lessons Learned ◽  
The Other ◽  
Learning Engagement ◽  
Digital Education ◽  
The Subject ◽  
Further Development

The researchers explored the dual experience of individuals who are both taking dance and movement classes digitally at the same time as they are also teaching dance and movement classes digitally. By focusing on this duality through a series of interviews with practitioners, the researchers explore how the learner/educators do or do not adapt one set of skills into the other area of work and the lessons learned from this reflective practice. The results are analyzed and broken down into five sections: glitches of the practice, reflective practice, active learning, engagement, and reframing communication. Through further analysis, the researchers explore possibilities for shifting the mindset around digital education methods. The researchers then offer suggestions for further development in the field and where further research can expand on the subject area.

scholarly journals The Effects of Mobbing on Organizational Cynicism: A Study on Hotels in Turkey

2014 ◽  
Vol 4 (1) ◽  
pp. 34 ◽  
Author(s):  
Elbeyi Pelit ◽  
Nil Pelit
Keyword(s):  
Sampling Method ◽  
The Other ◽  
Hotel Employees ◽  
Research Survey ◽  
Organizational Cynicism ◽  
Other Hand ◽  
Perceptions And Attitudes ◽  
Survey Technique ◽  
Data Collecting

The aim of this study is to determine the effects of the hotel employees' mobbing perceptions on organizational cynicism. In this respect, employees’ mobbing perceptions and attitudes related to organizational cynicism are evaluated separately, and then through putting forth the effect of mobbing on organizational cynicism on the sample of hotel business employees in Turkey. In this research, survey technique was utilized as a data collecting method, also the relevant mobbing and organizational cynicism scales were utilized. Survey way applied to 936 people selected through stage sampling method from employees of the five star hotel in Turkey which constitute the population of this research, and data collected for the aim of this study was analyzed and interpreted.According to the results of this research, it was determined that when hotel employees’ mobbing perceptions are considered in general, the highest mobbing perception is in “self-realization and attacks intended for communication formation” dimension; when their attitudes on organizational cynicism are considered in general, organizational cynicism with the highest average is behavioral cynicism. On the other hand, relations between employees’ mobbing perceptions and attitudes on organizational cynicism have been found significant in this research, also it is achieved that mobbing increases organizational cynicism.

Plural Origins of Molecular Homochirality in Our Biota Part II. The Relative Stabilities of Homochiral and Mixed Oligoribotides and Peptides

1997 ◽  
Vol 52 (1-2) ◽  
pp. 89-96 ◽  
Author(s):  
Thereza Amélia Soares ◽  
Roberto Dias Lins ◽  
Ricardo Longo ◽  
Richard Garratt ◽  
Ricardo Ferreira
Keyword(s):  
Molecular Dynamics ◽  
Amino Acid ◽  
Force Field ◽  
Molecular Mechanics ◽  
Computer Simulations ◽  
The Other ◽  
Amino Acid Residues ◽  
Relative Stabilities ◽  
Amber Force Field ◽  
Cross Inhibition

Abstract By computer simulations -molecular mechanics and molecular dynamics with the amber force field (Weiner et al., (1986), J. Comp. Chem. 7, 2 30-252) -we have determined the stabilities of oligoribotide strands built with ᴅ -and ʟ-riboses, and of peptide chains with ᴅ -and ʟ-amino acid residues. In particular, complementary double-chains of oligoribotides were studied, since they are an important feature of the growing mechanism of modern nucleic acids. Peptide chains on the other hand, grow without need of a template. We found that mixed oligoribotides are less stable than homochiral ones, and that this chiral effect is less noticeable in peptide chains. The results support the interpretation that ʟ-riboses act as terminators to the template-assisted growth of oligo-r-Gᴅ (enantiomeric cross-inhibition; Joyce et al., (1987), Proc. Natl. Acad. Sci. USA 84, 4398-4402). Based on this effect, a chemical pathway is proposed which could, under assumed prebiotic conditions, bypass the hindrance of homochiral growth.

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