使用VB实现二叉树的创建和浏览

二叉树是编程世界中最重要的数据结构.这里阐述用一个结构代表类,在VB.NET里,实施二叉树的创建,通过增加结点的方法,浏览二叉树,这种算法简单明了,为编辑打开便捷之门.     

算法时代平台劳动者主体性危机及法律应对

算法时代的劳动形态多样，平台与平台劳动者之间的法律关系中技术属性增强，导致平台劳动者出现主体性危机。算法时代平台劳动的风险具有技术导向性，其中的主体利益多元化，并且平台权力通过技术权力转化而形成。技术理性消解了平台劳动者的主体性，平台的劳动管理与技术优势导致劳动者迫于技术权力而隶属于平台；平台劳动者的劳动价值以数字化的方式被衡量和计算，使其从社会人属性向数字人属性转换。算法时代平台劳动者主体性危机的法律规制，需要重塑平台劳动中算法规制的价值立场，确立平台劳动算法规制中的法律责任，通过平台劳动中算法权力的监察机制，保障平台劳动者权益的法律救济。     

从算法“弱民”到算法“强民”:动因、功能与改进路径

算法“弱民”既有客观原因,也有主观原因。算法歧视的“路径依赖”、算法结构的“保守主义”、算法技术的“弱民文化”、“弱民”浏览跟踪、算法“客观真理”等是算法“弱民”的客观原因。算法客体的“弱认知”、客体心理、“舒适圈”沉浸等是算法“弱民”的主观原因。算法“弱民”是算法客观与主观的“合谋”与“合塑”。从算法“弱民”到算法“强民”需要优化算法结构、以算法对抗算法、以伦理规制算法、以底层“反抗”算法等多措并举。     

人工智能算法司法应用的发展隐忧及完善路径

当下,人工智能算法已经广泛应用于司法裁判、司法推理以及司法量刑等领域。其在进行裁判、推理及量刑的过程中也引发了诸多发展隐忧。如算法裁判易威胁司法自主、算法推理易影响实质正义、算法量刑易冲击审判中心主义等。为了排解上述隐忧,需要明确算法裁判的辅助性地位,确定算法裁判的应用范围以及责任归属,建立算法推理的可修正技术正当程序,不断完善人机协同的算法量刑新模式,从整体上提升人工智能算法司法应用的实效。     

基于Excel工作表实现GQPSO求解TSP问题

遗传量子粒子群优化算法GQPSO在TSP问题的求解中有很好的应用前景,本文提出在Excel的环境下,用Excel VBA编程,运用遗传量子粒子群优化算法GQPSO得到以Excel为工具求解物流管理中的最短回路问题的求解方法。     

平台控制下数字劳工算法抵抗的生成逻辑与本质

平台经济时代,算法及其资本主义应用在滋生算法霸权的同时不断加剧劳资利益失衡,催生了数字劳工的“算法抵抗”,即在自主意识觉醒后发挥“主观能动性”,通过利用技术漏洞、规则漏洞,尝试挣脱系统围困而实现底层突围。与传统的劳动抗争相比,数字劳工算法抵抗呈现出规模上的分散化、形式上的温和性以及发展态势上的缠斗性。究其根源,算法抵抗中“人机交锋”的表象背后是劳资双方在劳动控制权上的激烈博弈。在权力失衡的平台劳资格局中,数字劳工的抵抗虽能部分地摆脱算法控制、修复受损利益,但无法从根本上扭转自身的弱势地位。因此,亟须打造政府主导、劳资参与、集体协商的平台用工新格局,加快构建具有中国特色的和谐劳资关系,助力平台经济健康发展。     

供应链上结点企业的界面管理分析

供应链的界面管理是供应链组织效率的重要来源,它主要包括信息界面、物流界面、资金界面,供应链界面问题的产生是由于供应链运作过程中结点企业之间存在经营业务和经营能力的差异、信息沟通问题以及组织文化差异等.基于信息技术的界面管理方法,利用信息技术提供供应链界面管理中的一个信息支撑平台,以其特有的方式在结点企业之间交流传递有关信息,以引导结点企业的个体行为与供应链的整体目标保持协调一致;供应链系统中结点企业连接而形成的界面,正越来越多地相互渗透,以至于难以确定界面的属性,应用模糊论的思想进行分类、判断和控制是有效的方法;供应链上结点企业在合同签订、风险分担、利益分配等相互联系的方式上存在界面问题,可以通过协商(Bargain)的方式解决.     

智能算法伦理审查进路的完善策略

智能算法的价值负载,决定了技术中立原则无法成为抗辩伦理审查的有效事由。现有的算法伦理审查进路包括伦理标准的形成与伦理标准的运用两个阶段。前一阶段存在伦理标准滞后于风险的出现、审查范围难以满足现实需要以及权益认知已相对固化三大问题;后一阶段则在范围的解释性、备案的主动性、审查的有效性三方面存有不足。为此,应先从理论层面设计的算法伦理标准,即应具备出于引导的前瞻性、出于防范的兜底性、出于应用的灵活性。而后再从技术层面,一是需出台相关的配套性规范,使算法备案范围进一步明确;二是在确保算法商业秘密得到保护的前提下,探索算法备案的激励措施;三是注重算法治理模式之间的有效结合,实现从内到外全方位审查。     

绿色食品产业发展阶段与转变增长方式研究

一个经济增长方式与产业和企业的增长方式有很大关系,有什么样的产业和企业的增长方式,就有什么样的经济增长方式,绿色食品产业是农业的延伸,与国外的有机食品产业一样,同属一种很有市场前景的新兴产业.及时抓住产业增长机遇期,研究我国绿色食品产业增长所处阶段、表现特征、存在问题,对于引导绿色食品产业向集约型方式增长有至关重要的意义.     

智能建造趋势下工程管理专业应用型创新人才培养体系综合评价研究

近年来,随着科技的不断进步,智能建造技术得到迅猛发展。为了实现建筑行业高质量发展,对工程管理专业应用型创新人才的培养体系进行综合评价,是提高人才培养质量的有力手段,也是保障应用型专业建设与发展的关键所在。目前,对这一新型人才能力的培养体系还缺乏系统全面的认识和评估,在实际运行过程中还存在一些问题,严重制约着人才培养质量的提高,难以实现培养目标,无法满足社会需求。该文运用层次分析法和模糊层次分析法,构建了工程管理专业人才培养体系的综合评价指标体系,将改进粒子算法运用到各项指标权重的优化计算中,以期对应用型创新人才培养质量的提升起到一定的参考借鉴作用。     

Toward a Concept of a Migrant Personality

In this article we argue that individuals who want to emigrate possess a syndrome of personality characteristics that differentiates them from those who want to stay in their country of origin. Based on our own research, as well as other research findings, we show that those who want to resettle in another country tend to be more work-oriented and to have higher achievement and power motivation, but lower affiliation motivation and family centrality, than those who do not want to leave their country of origin. This migrant personality syndrome is seen as only one of the variety of factors that determine migratory behavior. We further discuss some of the possible implications of our findings for the receiving and the sending countries and possible psychological interventions that can ease the acculturation of immigrants.     

Collaboration: a study of a children's initiative

In times of shrinking resources within the social services, collaboration is being promoted as a more efficient way of meeting the needs of children and families. A study of a children's initiative collaborative developed to address the problems of children is reported. The authors present and use an evaluation framework which incorporated the dimensions of context, process, and outcomes of collaboration. The findings, based on the initial two years of collaborative effort, suggested the membership of the group and the process and structure governing the group's operations impacted the process and outcomes of the collaboration.     

Existence of a utility on a topological semigroup

This paper presents a comprehensive mathematical framework in which a unified treatment of additive and expected utility can be given. For achieving this, elaborate structural assumptions, characterizing a simply ordered, topological semigroup, have to be established in order to construct an isomorphism with the additive group of real numbers. This construction establishes a link between additive and expected utility theory to the extent that the same mathematical considerations leading to the derivation of an additive representation are also valid for proving the expected utility theorem.     

Inferring a linear ordering over a power set

An observer attempts to infer the unobserved ranking of two ideal objects, A and B, from observed rankings in which these objects are `accompanied' by `noise' components, C and D. In the first ranking, A is accompanied by C and B is accompanied by D, while in the second ranking, A is accompanied by D and B is accompanied by C. In both rankings, noisy-A is ranked above noisy-B. The observer infers that ideal-A is ranked above ideal-B. This commonly used inference rule is formalized for the case in which A,B,C,D are sets. Let X be a finite set and let be a linear ordering on 2^X. The following condition is imposed on . For every quadruple (A,B,C,D)Y, where Y is some domain in (2^X)⁴, if and , then . The implications and interpretation of this condition for various domains Y are discussed.     

Positive Connections: a programme for children who have a parent with a mental illness

Mental health professionals working with parents who suffer from a mental illness often overlook the children within the family. Children whose parents are mentally ill face numerous obstacles to their own emotional development and these children are at higher risk for developing mental illnesses than other children. These risks can be decreased if protective or positive interventions are available for the children. This article will describe the development and implementation of Positive Connections, an effective intervention programme specifically designed for children whose parents have been diagnosed with a mental disorder. The effectiveness of this programme has been evaluated using both qualitative and quantitative research strategies, and the results are presented.     

The epistemic structure of a theory of a game

This paper is a contribution to the systematic study of alternative axiom-sets for theories of (normal-form, complete-information) games. It provides an introduction to epistemic logic, describes a formulation in epistemic logic of the structure of a theory of a game (the broad theory of that game), and applies methods of epistemic logic to define strategies for dealing with two disturbing features of game theory, its hyperrationality assumptions and its indeterminacy. The analysis of these problems is conducted in terms of two principles which impregnate much game theory, Cleverness and Cloisteredness (the principles that players know respectively all, and only, the logical consequences of their assumed knowledge). Broad theories allow us to formulate and revise these principles despite their metatheoretical character. It is shown how Cleverness may be weakened by using logics which restrict the Rule of Epistemization, and Cloisteredness by using default logic or autoepistemic logic; the latter is used to characterize Nash equilibrium beliefs as parts of certain autoepistemic extensions of players' knowledge bases, but these particular extensions are rejected as ungrounded.I am grateful for most helpful comments to Robin Cubitt, Joe Halpern, Ernest Geffner, Philippe Mongin, David Squires, Elias Thijsse and Tim Williamson.     

革命家与学者--陈翰笙先生

下面是翰老3月13日逝世后我写的一篇悼念文章。4月13日在中国太平洋学会召开的追思会上,我又加了这样的几句话:我是翰老的晚辈、后辈,缅怀他得回溯百年来的中国历史。在这百年里,作为“欧美派”的知识分子,在学成回国后,能立即投入中国共产党领导的革命洪流中的,翰老是第一人;具有像他那样的学术地位,作为共产党员长期从事艰苦的地下工作的,翰老是第一人;在这种工作中能把革命活动和学术研究完满地结合起来,并取得卓越成就的,翰老是第一人;在中国知识分子不幸受难的时代,能坚持学者革命气节,拒不随波逐流的,翰老是第一人;同样,在国际反法西…     

教师本色 学者风范——忆恩师杨德泉先生

杨德泉先生生前系中国宋史研究会理事、陕西师范大学历史系教授、陕西历史博物馆筹建处主任兼党组书记。他一生热爱党的教育事业,钟情教师职业,在长期的教学实践中形成了富有自己鲜明特色的教学艺术与风格,深受学生爱戴。他献身史学研究,学识渊博,功底深厚,严谨勤奋,在唐宋史、陕西地方史等研究方面成绩卓著,创获颇丰。     

Exploitation of a crisp relation in a ranking problem

The outranking methods usually contain two main steps: determination of a (sometimes valued) relation which aggregates the preferences and exploitation of this relation in order to choose, sort or rank the actions. In a ranking problem, the second step is the construction of a (complete or partial) preorder from a (valued) relation. We have considered it was interesting to list the good properties such a construction should verify and to analyze some procedures in this context. We present here the first results of this study, which concern the construction of a complete preorder from a non valued relation.