Indifference sets of reference points in multi‐objective integer linear programming

Reference point approaches for multi‐objective problems rely on the definition of an achievement scalarizing function that projects reference points onto the non‐dominated solution set. In this paper, we investigate the behaviour of reference points using a Tchebycheff metric‐based scalarizing function in multi‐objective pure integer linear programming (MOILP). Since the non‐dominated solutions are discrete in MOILP, there are multiple reference points that lead to the same solution, i.e. there are indifference sets on the reference point space. We investigate some properties of the reference points in MOILP and also the graphical representation of indifference sets for tri‐objective problems. We further investigate properties of the reference points when additional limitations on the objective function values are introduced. Copyright © 2001 John Wiley & Sons, Ltd.     

The Truth-Conduciveness Problem of Coherentism and a Sellarsian Explanatory Coherence Theory

According to the truth-conduciveness problem of coherentism, the coherence theory of justification can hardly show that coherentist justification is truth-conducive. This problem is generally conceived as the most recalcitrant problem with the coherence theory. The purpose of this paper is to show that it does not pose a serious problem for a certain version of coherentism, namely a Sellarsian explanatory coherence theory of justification combined with the deflationary theory of truth. On this version of coherentism, our epistemic goal is to gradually improve our conceptual framework so as to maximize its explanatory coherence, and there is no substantial norm of truth independent of the norms of justification, so that we cannot evaluate the truth-conduciveness of a belief independently of the norms of justification. I argue that this version of coherentism can cope with the truth-conduciveness problem.     

How to define the accident risk level of car drivers by combining objective and subjective measures of driving style

Perceived risk can be defined as the expectation of being involved in a traffic accident. Traffic risk perception is often subjectively evaluated being risk perception as highly individual, and depending on experiences with accidents. For this reason, a subjective measure of risk level can be useful. On the other hand, accident risk level can be measured also through objective measures, consisting in kinematic parameters defining the driving style. At this aim, it is very important to analyse instantaneous and geo-referenced travelling kinematic parameters of the vehicle recorded by real tests on the road.The aim of this paper is to identify the accident risk level of each driver based on a methodology combining both subjective and objective parameters. Specifically, by using the proposed methodology the risk can be measured immediately by using only the kinematic parameters adopted when driving; we defined three levels of risk of being involved in a road accident (low, medium, and high risk). We retain that our research can give a contribution in terms of improvement of road safety, because the distorted perception of risk level is one of the main causes of road accidents. Very often, drivers are not aware of the risk taking; therefore, it is necessary to raise the awareness of drivers to have safer driving. The proposed method can be useful for informing the driver on the level of risk he/she assumes, so that he/she can take the necessary precautions next time that will cover that stretch of road.     

内隐学习研究40年

内隐学习至今已有40年的研究历史。在这期间,内隐学习的研究对象、研究方法和本质特征都得到了深入和扩展。主要体现在：内隐学习的研究材料从同时性刺激走向序时性刺激;内隐学习的研究方法从主观阈限的测量逐渐扩展到客观阈限测量,又再回到主观阈限测量之上;内隐学习的本质特征从抽象到具体,再落脚于熟悉性     

当代伦理学的新发展:女性主义伦理学评介

女性主义伦理学是当代伦理学中反主流规范伦理学中的一支。它将女性身份作为反思西方社会生活的一个符号代码,试图以性别分析方法剖析伦理学领域内性别权力的运作,以结束使女性受压迫的伦理意识和谋划,达到更合理的对伦理道德的理解。同时它批判了规范伦理学的普遍主义理论体系与论证方式,质疑了主流伦理理论的基本预设与价值建构。女性主义伦理学探究是一个正在进行的过程,当代伦理学多元化发展的潮流中,女性主义的探究为伦理学的发展提供了更大空间。     

职业枯竭的测量方法

职业枯竭领域研究使用的测量方法主要有两类：问卷测量法和客观测量法。问卷测量法又包括自陈问卷测量法和他评问卷测量法。常用的四种自陈问卷以及它们的使用情况和优缺点进行了重点评述。他评问卷法和客观测量法也简要地提及。从目前来看,自陈问卷测量法是枯竭领域的主导测量方法,并还将在很长的一段时间内保持这一地位     

A multiple-objective dispersion problem

In this paper we study a multiple-objective dispersion problem from an efficient solution and value function perspective. A general fundamental theorem on non-dominance is given and a polar co-ordinate elimination heuristic is given for the case of R². Some general results are given for the existence of a linearly weighted objective function whose maximal value will give a most preferred solution, for convex or concave value functions, and a heuristic is developed for the case where these conditions do not hold.     

OUTSTANDING ISSUES WITH ROBERT RUSSELL'S NIODA CONCERNING QUANTUM BIOLOGY AND THEISTIC EVOLUTION

Non‐Interventionist Objective Divine Action (NIODA), introduced by Robert John Russell, is a model of divine action drawing upon insights from quantum mechanics. It presents an intriguing and significant challenge to classical conceptions of divine action with far‐reaching consequences. When applying NIODA to theistic evolution, however, significant questions emerge that require attention. We identify and assess two sets of concerns. The first relates to quantum physics, particularly whether and how quantum occurrences influence mutations and evolution. We argue that the current empirical evidence is ambiguous in its support of the kinds of quantum action that Russell proposes, though emerging data from quantum biology look promising. The second set of concerns is metaphysical, especially concerning the problem of evil. NIODA gives Godextensive agency over evolution and genetics, which has adverse consequences for theodicy. We propose potential solutions to the problems highlighted in our article, both metaphysical and physical, to improve the viability of NIODA's application to theistic evolution.     

学生感知的学校氛围与主客观学业成绩:心理素质及其分维度的中介作用

本研究旨在探究心理素质及其分维度在学生感知的学校氛围与主客观学业成绩之间的中介作用。采用整群抽样的方法选取被试,样本一抽取北京、陕西等七个省市10所中学7~12年级共1274名学生,样本二抽取重庆、湖南等四个省市7所中学7~12年级共2190名学生。结果表明：（1）学生感知的学校氛围与主观学业成绩存在显著正相关,与客观成绩的正相关呈边缘显著,与心理素质存在显著正相关;（2）心理素质在感知的学校氛围与主客观学业成绩之间中介作用显著;（3）心理素质的不同维度在学生感知的学校氛围与学业成绩关系之间中介作用存在差异,其中认知品质在学生感知的学校氛围与学业成绩之间存在稳定的正向中介作用。研究结果启示教育者在实施素质教育的过程中,应注意营造积极的学校氛围,以此提高学生心理素质,尤其是认知品质的发展,从而提高学生的学业成绩。     

Chinese Corporate Social Responsibility by Multiple Objective Portfolio Selection and Genetic Algorithms

In this paper, we study corporate social responsibility (CSR) in China through the prism of investments. We work with large stocks and assess their CSR performance from agency CSR data. We formulate Chinese CSR by a multiple objective extension of a traditional portfolio selection model and analytically solve the extension. We also solve the extension by a genetic algorithm and directly evaluate the algorithm's performance against the analytical solution. The multiple objective formulation is tested by randomly choosing nondominated portfolios with out‐of‐sample data to identify nondominated portfolios that outperform the 1/n portfolio (equally weighted portfolio). Copyright © 2013 John Wiley & Sons, Ltd.