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Cost Sharing Based Truthful Spectrum Auction with Collusion-Proof 被引量:1
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作者 Deming Pang Zhigang Deng +2 位作者 Gang Hu Yingwen Chen Ming Xu 《China Communications》 SCIE CSCD 2018年第2期74-87,共14页
Spectrum auction is an important approach of spectrum distribution in cognitive radio networks. However, a single secondary user(SU) probably can't afford the price of spectrum. Multiple SUs grouping together to p... Spectrum auction is an important approach of spectrum distribution in cognitive radio networks. However, a single secondary user(SU) probably can't afford the price of spectrum. Multiple SUs grouping together to participate in the auction as a whole is helpful to increase purchasing power. However, SUs could suffer from a new group cheating problem, i.e., parts of users conspire to manipulate the auction by submitting untruthful bids. Existing auction mechanisms were mainly designed to be strategy-proof only for individual user and can't deal with group cheating. In this paper, a novel spectrum auction mechanism called COSTAG(COst Sharing based Truthful Auction with Group-buying) is proposed to address the group cheating problem. COSTAG consists of a grouping rule to perform grouping and a payment rule to determine the market-clearing price in the spectrum auction. Different from single-echelon pricing approach employed in existing works, a multi-echelon pricing strategy is designed to increase the transaction rate and optimize social profit for the auction. Comprehensive theoretical analysis shows that COSTAG can satisfy the crucial economic robustness properties, both individual and group truthfulness. Simulations demonstrate that comparing with existing works, COSTAG can improve the system performance significantly. 展开更多
关键词 wireless network spectrum auc-tion group buying group truthfulness cogni-tive radio networks
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融合IMR-WGAN的时序数据修复方法 被引量:1
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作者 孟祥福 马荣国 《小型微型计算机系统》 CSCD 北大核心 2024年第3期641-650,共10页
工业数据由于技术故障和人为因素通常导致数据异常,现有基于约束的方法因约束阈值设置的过于宽松或严格会导致修复错误,基于统计的方法因平滑修复机制导致对时间步长较远的异常值修复准确度较低.针对上述问题,提出了基于奖励机制的最小... 工业数据由于技术故障和人为因素通常导致数据异常,现有基于约束的方法因约束阈值设置的过于宽松或严格会导致修复错误,基于统计的方法因平滑修复机制导致对时间步长较远的异常值修复准确度较低.针对上述问题,提出了基于奖励机制的最小迭代修复和改进WGAN混合模型的时序数据修复方法.首先,在预处理阶段,保留异常数据,进行信息标注等处理,从而充分挖掘异常值与真实值之间的特征约束.其次,在噪声模块提出了近邻参数裁剪规则,用于修正最小迭代修复公式生成的噪声向量.将其传递至模拟分布模块的生成器中,同时设计了一个动态时间注意力网络层,用于提取时序特征权重并与门控循环单元串联组合捕捉不同步长的特征依赖,并引入递归多步预测原理共同提升模型的表达能力;在判别器中设计了Abnormal and Truth奖励机制和Weighted Mean Square Error损失函数共同反向优化生成器修复数据的细节和质量.最后,在公开数据集和真实数据集上的实验结果表明,该方法的修复准确度与模型稳定性显著优于现有方法. 展开更多
关键词 数据修复 改进Wasserstein生成对抗网络 Abnormal and Truth奖励机制 动态时间注意力机制 Weighted Mean Square Error损失函数
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Truthful Mechanism for Crowdsourcing Task Assignment 被引量:2
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作者 Yonglong Zhang Haiyan Qin +3 位作者 Bin Li Jin Wang Sungyoung Lee Zhiqiu Huang 《Tsinghua Science and Technology》 SCIE EI CAS CSCD 2018年第6期645-659,共15页
As an emerging "human problem solving strategy", crowdsourcing has attracted much attention where requesters want to employ reliable workers to complete specific tasks. Task assignment is an important branch of crow... As an emerging "human problem solving strategy", crowdsourcing has attracted much attention where requesters want to employ reliable workers to complete specific tasks. Task assignment is an important branch of crowdsourcing. Most existing studies in crowdsourcing have not considered self-interested individuals' strategy. To guarantee truthfulness, auction has been regarded as a promising method to charge the requesters for the tasks completed and reward the workers for performing the tasks. In this study, an online task assignment scenario is considered where each worker has a set of experienced skills, whereas a specific task is budget-constrained and requires one or more skills. In this scenario, the crowdsourcing task assignment was modeled as a reverse auction where the requesters are buyers and the workers are sellers. Three incentive mechanisms, namely, Truthful Mechanism for Crawdsourcing-Vickrey-Clarke-Grove (TMC-VCG), TMC-Simple Task (ST) for a simple task case, and TMC-Complex Task (CT) for a complex task case are proposed. Here, a simple task case means that the requester asks for a single skill, and a complex task case means that the requester asks for multiple skills. The related properties of each of the three mechanisms are determined theoretically. Moreover, the truthfulness is verified, and other performances are evaluated by extensive simulations. 展开更多
关键词 crowdsourcing task assignment AUCTION truthfulness
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珍藏十多年的蜡笔
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作者 孙朝岚 《疯狂英语(新读写)》 2024年第9期31-33,76,共4页
这是希瑟做任课老师的最后一个学期,学生们给她送了小礼物作为纪念。一个小男孩犹豫了,他在想办法让老师知道他有多在乎她。主题语境:日常生活篇幅:347词建议用时:7分钟。1 When it comes to gifts,we often say it's the thought t... 这是希瑟做任课老师的最后一个学期,学生们给她送了小礼物作为纪念。一个小男孩犹豫了,他在想办法让老师知道他有多在乎她。主题语境:日常生活篇幅:347词建议用时:7分钟。1 When it comes to gifts,we often say it's the thought that counts.While this can be said humorously at times,Heather Benoit is here to remind us of the truth behind this sentiment.Over a decade ago,this teacher was given a crayon by one of her students. 展开更多
关键词 任课老师 HUMOR TRUTH
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Truth Discovery from Conflicting Data: A Survey
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作者 方秀 王康 +2 位作者 孙国豪 司苏新 吕航 《Journal of Donghua University(English Edition)》 CAS 2023年第4期410-420,共11页
With the rocketing progress of the Internet, it is easier for people to get information about the objects that they are interested in. However, this information usually has conflicts. In order to resolve conflicts and... With the rocketing progress of the Internet, it is easier for people to get information about the objects that they are interested in. However, this information usually has conflicts. In order to resolve conflicts and get the true information, truth discovery has been proposed and received widespread attention. Many algorithms have been proposed to adapt to different scenarios. This paper aims to investigate these algorithms and summarize them from the perspective of algorithm models and specific concepts. Some classic datasets and evaluation metrics are given in this paper. Some future directions for readers are also provided to better understand the field of truth discovery. 展开更多
关键词 data mining truth discovery conflicting data source reliability object truth ground truth
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Lightweight privacy-preserving truth discovery for vehicular air quality monitoring
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作者 Rui Liu Jianping Pan 《Digital Communications and Networks》 SCIE CSCD 2023年第1期280-291,共12页
Air pollution has become a global concern for many years.Vehicular crowdsensing systems make it possible to monitor air quality at a fine granularity.To better utilize the sensory data with varying credibility,truth d... Air pollution has become a global concern for many years.Vehicular crowdsensing systems make it possible to monitor air quality at a fine granularity.To better utilize the sensory data with varying credibility,truth discovery frameworks are introduced.However,in urban cities,there is a significant difference in traffic volumes of streets or blocks,which leads to a data sparsity problem for truth discovery.Protecting the privacy of participant vehicles is also a crucial task.We first present a data masking-based privacy-preserving truth discovery framework,which incorporates spatial and temporal correlations to solve the sparsity problem.To further improve the truth discovery performance of the presented framework,an enhanced version is proposed with anonymous communication and data perturbation.Both frameworks are more lightweight than the existing cryptography-based methods.We also evaluate the work with simulations and fully discuss the performance and possible extensions. 展开更多
关键词 Privacy preserving Truth discovery Crowdsensing Vehicular networks
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Cleaning of Multi-Source Uncertain Time Series Data Based on PageRank
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作者 高嘉伟 孙纪舟 《Journal of Donghua University(English Edition)》 CAS 2023年第6期695-700,共6页
There are errors in multi-source uncertain time series data.Truth discovery methods for time series data are effective in finding more accurate values,but some have limitations in their usability.To tackle this challe... There are errors in multi-source uncertain time series data.Truth discovery methods for time series data are effective in finding more accurate values,but some have limitations in their usability.To tackle this challenge,we propose a new and convenient truth discovery method to handle time series data.A more accurate sample is closer to the truth and,consequently,to other accurate samples.Because the mutual-confirm relationship between sensors is very similar to the mutual-quote relationship between web pages,we evaluate sensor reliability based on PageRank and then estimate the truth by sensor reliability.Therefore,this method does not rely on smoothness assumptions or prior knowledge of the data.Finally,we validate the effectiveness and efficiency of the proposed method on real-world and synthetic data sets,respectively. 展开更多
关键词 big data data cleaning time series truth discovery PAGERANK
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The History of the Concept of“Truth-Making”
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作者 Nikolay Milkov 《Journal of Philosophy Study》 2023年第10期449-461,共13页
The conception of truth-making,albeit in a rudimentary form,could already be discerned in the writings of G.E.Moore and E.Husserl in the early 1900s.A few years later it was more extensively exploited by William James... The conception of truth-making,albeit in a rudimentary form,could already be discerned in the writings of G.E.Moore and E.Husserl in the early 1900s.A few years later it was more extensively exploited by William James.It was Wittgenstein,however,who gave the concept a precise meaning.In 1913/1914 Wittgenstein advanced a theory of possible worlds,only one of which was real.Every proposition suggests a part of a possible world which does or does not correspond to parts of the real world.In the first case the proposition is true,in the second case false.Moreover,the part of the real world makes the sentence true.This part is a truth-maker,and the sentence is a truth-bearer.Surprisingly enough,Wittgenstein’s concept of truth-making had its family resemblance with William James’s conception of truth.In 1915 Wittgenstein stopped using the concept of truth-making-it was also not mentioned in the Tractatus.Unfortunately,Russell did not notice this and in 1918 he adopted the concept of truth-making.In the 1930s,it was used by some second generation analytic philosophers(Schlick,Stebbing,and Wisdom).However,it became rather popular among analytic philosophers only in the 1980s. 展开更多
关键词 James RUSSELL truth truth-making WITTGENSTEIN
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On Master Tanxu’s Thought of the Middle Way
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作者 GUO Yancheng GUO Jintong 《Cultural and Religious Studies》 2023年第6期253-257,共5页
This paper discusses Master Tanxu’s Thought of Middle Way from three aspects:interpreting the Middle Way with the Tiantai Sect’s thought of“Three Truths as a Unity”(三諦圓融),discussing“the Truth of the First Mea... This paper discusses Master Tanxu’s Thought of Middle Way from three aspects:interpreting the Middle Way with the Tiantai Sect’s thought of“Three Truths as a Unity”(三諦圓融),discussing“the Truth of the First Meaning of the Middle Way”(中道第一義諦)from the relationship between“the One Mind”and the Middle Way,and discussing gradations of practice of the Middle Way. 展开更多
关键词 Master Tanxu the Thought of the Middle Way the Truth of the First Meaning of the Middle Way the One Mind
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旅游空间正义,谁的正义? 被引量:19
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作者 刘俊 《旅游学刊》 CSSCI 北大核心 2017年第3期8-9,共2页
国内围绕旅游发展权益分配的不公平和不公正现象已呈常态化。利益相关者之间权力结构失衡和调节保障机制缺位,愈益成为制约旅游目的地可持续发展的关键因素。旅游发展所引发的利益关系调整主要是在资本、政府与地方三者之间,旅游决策和... 国内围绕旅游发展权益分配的不公平和不公正现象已呈常态化。利益相关者之间权力结构失衡和调节保障机制缺位,愈益成为制约旅游目的地可持续发展的关键因素。旅游发展所引发的利益关系调整主要是在资本、政府与地方三者之间,旅游决策和利益分配更多是在资本和权力主导下进行,地方社区往往处于被动、失语和边缘化状态。过往学者更多从公平交易(fare trade)、社区参与、社区赋权等概念角度关注地方在旅游发展中的失权问题,藉由向权力诉说真理(speak truth to power)为弱势群体发声, 展开更多
关键词 旅游空间 不公正现象 社区参与 地方社区 SPEAK TRUTH 利益关系调整 失权 正义原则 社会公平
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公民意识的觉醒——《穹顶之下》引发的热议 被引量:2
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作者 张祖群 《电影评介》 北大核心 2015年第4期1-6,共6页
一、环保纪录片的里程碑关于环保的纪录片多是欧美发达国家拍摄的,例如:《可爱的动物(Animals Are Beautiful People)》(1974,南非)、《野鸟世界(The Life of Birds)》(1998,英国)、《地球公民(Earthlings)》(2005,美国)、《地球脉动(Pl... 一、环保纪录片的里程碑关于环保的纪录片多是欧美发达国家拍摄的,例如:《可爱的动物(Animals Are Beautiful People)》(1974,南非)、《野鸟世界(The Life of Birds)》(1998,英国)、《地球公民(Earthlings)》(2005,美国)、《地球脉动(Planet Earth)》(2006,英国)、《难以忽视的真相(An Inconvenient Truth)》(2006,美国)、《危险中的星球(Planet in Peril)》(2007,美国)、《自然界大事件(Nature’s Great Events)》(2009,英国)、《人类星球(Human Planet)》(2011,英国)、《家园(Home)》(2011, 展开更多
关键词 地球脉动 大事件 柴静 TRUTH Events 公众利益 污染治理 公众媒体 全国环境保护 大排量
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浅谈现代外语教材的“以人为本” 被引量:1
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作者 张彦玲 《佳木斯大学社会科学学报》 2008年第3期161-162,共2页
现代外语教材的形式和功能发生了很大的转变,外语教材的"以人为本"就是指教材要以使用者为中心———以学生为主体。"以人为本"虽然在现代外语教材中得到了充分体现,但在教材编写中还有许多问题,在编写过程中应充... 现代外语教材的形式和功能发生了很大的转变,外语教材的"以人为本"就是指教材要以使用者为中心———以学生为主体。"以人为本"虽然在现代外语教材中得到了充分体现,但在教材编写中还有许多问题,在编写过程中应充分考虑学习者的需求和提供真实性材料。以期达到当今外语教学的新层面,并对学习者有特殊的指导意义。 展开更多
关键词 以人为本 教材编写 学生体验 需求 真实性
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一种改进的轮廓提取评估算法
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作者 赵宏伟 刘静 +1 位作者 陈华程 崔弘睿 《吉林大学学报(工学版)》 EI CAS CSCD 北大核心 2011年第S1期179-182,共4页
针对带有Ground Truth图的自然图像轮廓评估算法的轮廓提取准确率低并且不精确的问题,本文提出了一种邻域匹配算法,并且与原算法相结合,再将评估的准确率公式进行修改,得到了本文的轮廓提取评估算法。通过对Canny算子处理的轮廓提取图... 针对带有Ground Truth图的自然图像轮廓评估算法的轮廓提取准确率低并且不精确的问题,本文提出了一种邻域匹配算法,并且与原算法相结合,再将评估的准确率公式进行修改,得到了本文的轮廓提取评估算法。通过对Canny算子处理的轮廓提取图进行评估,并与原算法相比可知,本文算法提高了评估的轮廓提取准确率。 展开更多
关键词 图像处理技术 GROUND Truth图 自然图像 轮廓提取评估算法
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各美其美,美美与共——谈谈我们的美育课程 被引量:1
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作者 李迅 《福建教育》 2016年第2期15-18,共4页
"正如高贵的艺术比高贵的自然有更长的生命一样,在振奋精神方面,它也走在自然的前边,起着创造和唤醒的作用。"(席勒)——题记一位毕业于名牌音乐学院的优秀硕士生来我校应聘,第一次风尘仆仆来到福建,学校安排她住在校内的交流中心... "正如高贵的艺术比高贵的自然有更长的生命一样,在振奋精神方面,它也走在自然的前边,起着创造和唤醒的作用。"(席勒)——题记一位毕业于名牌音乐学院的优秀硕士生来我校应聘,第一次风尘仆仆来到福建,学校安排她住在校内的交流中心。晚间九点半,她在校园内散步,耳边响起一阵乐声,乐曲如行云流水,又抒情安宁,曲中间奏弦乐与鼓点,不乏积极向上之意,令人心向往之。 展开更多
关键词 美术课程 心向往之 音乐鉴赏 基础班 TRUTH 间奏 席勒 美育工作 鉴赏能力 令人
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单称命题、真理与指称(英文)
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作者 何朝安 《逻辑学研究》 CSSCI 2015年第3期88-100,共13页
单称命题观念的可理解性和合法性是当代弗雷格主义语义学与罗素主义语义学争论的焦点问题。在模态结构下,单称命题观念与一系列强有力的基本假设相冲突。普兰廷加等人发展了一个专门针对单称命题的标准论证,试图通过归谬论证来证明单称... 单称命题观念的可理解性和合法性是当代弗雷格主义语义学与罗素主义语义学争论的焦点问题。在模态结构下,单称命题观念与一系列强有力的基本假设相冲突。普兰廷加等人发展了一个专门针对单称命题的标准论证,试图通过归谬论证来证明单称命题观念是不融贯的。面对之于单称命题理论的这一挑战,一种颇具潜力的应对策略是区分两种真理观念,即命题在"世界里"为真与命题在"世界上"为真的区分。此策略试图表明,承诺单称命题"在世界上为真"并不导致与基本假设相冲突。本文在此专门考察这一策略的可行性。基于真理问题与指称问题的内在联系,即语句指称(真值)是语词指称的函项,我们力图证明,两种真理观念的区分实际上可还原为著名的顽固指称固定性和持续指称固定性的区分。而后一区分可以相当严格地在卡普兰的二维语义学框架下得到说明。此框架的实质基础是指称纳入的概念。文章基于对空名语义学的相关分析,通过借鉴埃文斯的描述性名称构造方式,构造了一种独特的绝对空名。最后,以此为基础,我们试图表明卡普兰框架下的指称"纳入"概念难以贯彻到底,继而,以之为基础来为单称命题观念提供辩护的策略也难以维系。 展开更多
关键词 单称命题 PROPOSITION 归谬论证 TRUTH 可理解性 notion 弗雷格 NAMES
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事先积累材料在理解和翻译中的意义
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作者 许崇信 《上海翻译》 CSSCI 北大核心 1992年第3期1-5,共5页
学习外语、欣赏外国名著或翻译外语作品,都有一个理解的问题。不同的理解,产生对事物的不同认识和判断,造成解释事物或处理问题的不同方式或结果。但构成理解的要素是多方面和多种多样的,这里着重从“事先积累材料”(pre-information)... 学习外语、欣赏外国名著或翻译外语作品,都有一个理解的问题。不同的理解,产生对事物的不同认识和判断,造成解释事物或处理问题的不同方式或结果。但构成理解的要素是多方面和多种多样的,这里着重从“事先积累材料”(pre-information)的角度探讨问题。 人脑像一部计算机,如果事先没有把程序设计语言输入它的存储器里面,这部“电脑”的“脑子”是空空如也,也就谈不上什么“人工智能”,更谈不上发挥这种智能的作用了。这说明事先积累材料的重要性。 展开更多
关键词 积累材料 程序设计语言 唐诗三百首 TRUTH 女诗人 又一村 减笔 《长恨歌》 玄宗 狄更生
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《TRUTH(真相)》史料及其历史价值
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作者 张洁 《辽宁大学学报(哲学社会科学版)》 2015年第5期14-22,共9页
九一八事变后,沈阳"九君子"完成了《TRUTH(真相)》证据汇编,历经辗转呈递给国联调查团。《TRUTH(真相)》因其高度的实证性、系统性和规范性而成为国联仲裁的依据,推动了国际社会首次对九一八事变及伪满洲国定性。"九君子... 九一八事变后,沈阳"九君子"完成了《TRUTH(真相)》证据汇编,历经辗转呈递给国联调查团。《TRUTH(真相)》因其高度的实证性、系统性和规范性而成为国联仲裁的依据,推动了国际社会首次对九一八事变及伪满洲国定性。"九君子"国联外交是中国知识分子发起的软实力抗战,构成了九一八抗战的重要组成部分,也成为中国国联外交的一个亮点。国际友人多方斡旋、冒死协助,这是国际反法西斯联合斗争的首次尝试。"九君子"用实际行动改变了"弱国无外交"的惯性认识,再次彰显了"国家有难、匹夫有责"的担当与风骨,意义深远。 展开更多
关键词 《TRUTH(真相)》 “九君子” 国联外交 九一八抗战
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Words worth’s Poetry:from Nature and beyond Nature
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作者 姜鸿玉 《内蒙古师范大学学报(哲学社会科学版)》 2001年第S1期55-59,共5页
William Wordsworth is one of the best known English poets in literary history. As an arch romanticist, Wordsworth is generally known as a poet of Nature, because he not only describes Nature and ordinary people who li... William Wordsworth is one of the best known English poets in literary history. As an arch romanticist, Wordsworth is generally known as a poet of Nature, because he not only describes Nature and ordinary people who live in close touch with her, but also discloses the truth about Nature. He contributes a lot to the world literature. 展开更多
关键词 William Wordsworth NATURE POETRY TRUTH
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Nay or Jain Nyay 2: Logic of Atheism of Jain Dharm
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作者 Mahendra Kumar Jain Agam Jain 《Journal of Philosophy Study》 2016年第2期69-87,共19页
Ethos and logos of the Jain thought and practice (world view) is based on reality perceived by senses. Atheistic roots of Jain Dharm have nourished growth, maintained viability and vitality, and kept it relevant for... Ethos and logos of the Jain thought and practice (world view) is based on reality perceived by senses. Atheistic roots of Jain Dharm have nourished growth, maintained viability and vitality, and kept it relevant for over the last five millennia. Unlike Judeo-Christian-Islam or Brahminical faith, it does not rely on omniscient supreme or god. Its atheistic and anti-theistic thrust is generally known, yet its followers do not call themselves Nastik (non-believers). They emphasize action-consequence relations as guide for successful behaviors with ethical conduct. The basis of their arguments follows from the Jain logic (Saptbhangi Syad Nay) of evidence based inference with multiple orthogonal affirmed assertions (Jain 2011). It conserves information by acknowledging the remaining doubt in an inference. It does not assume binary complementation to force closure for deduction with incomplete knowledge which leads to self-reference and loss of information. This approach offers a rational and practical alternative to conundrum of western atheism even though its arguments are logical and consistent with available evidence. It also obviates need to extract religious morality from social mores. Objective truth and knowledge of established generalizations is necessary but not sufficient for subjective searches to shape desires and for what the future ought to be. 展开更多
关键词 ATHEISM Mahaveer (Mahavira) JAINISM Jains OMNISCIENCE NAY Jain Nyay Nyaya Tirthankar Arhat Arihant conflict resolution nonviolence truthfulness Buddha (Buddh) nothingness (Shoonyata) limitations of binary logic logic of inference Saptbhangi Syad Nay
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句首动词形式考点精练(英文)
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作者 刘新会 《中学英语园地(高三版)》 2006年第12期37-40,共4页
关键词 动词形式 动名词短语 现在分词 exposed think TRUTH LIKELY speakin
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