Forensic identification of resampling operators: A semi non-intrusive approach

Recently, several new resampling operators have been proposed and successfully invalidate the existing resampling detectors. However, the reliability of such anti-forensic techniques is unaware and needs to be investigated. In this paper, we focus on the forensic identification of digital image resampling operators including the traditional type and the anti-forensic type which hides the trace of traditional resampling. Various resampling algorithms involving geometric distortion (GD)-based, dual-path-based and postprocessing-based are investigated. The identification is achieved in the manner of semi non-intrusive, supposing the resampling software could be accessed. Given an input pattern of monotone signal, polarity aberration of GD-based resampled signal's first derivative is analyzed theoretically and measured by effective feature metric. Dual-path-based and postprocessing-based resampling can also be identified by feeding proper test patterns. Experimental results on various parameter settings demonstrate the effectiveness of the proposed approach.     

“七率一量”的演变及内容

刑事科学技术业务考核的标准有其演变的历史过程。"七率一量"标准的提出,使刑事科学技术业务考核实现了由定性到定量的转变,是刑事科学技术部门一场较大的变革。特别是其翔实的内容和可操作的方法,对公安实战部门具有其独特的科学性和指导意义。     

论激励法的客观存在

中外大量史料证明 ,由古至今 ,激励法是客观存在的。随着社会的发展和进步 ,研究激励法已成为日益迫切、重要的课题。目前 ,在承认存在激励法的学者中尚有若干模糊认识需要澄清     

Celebrating Sisterhood Across Oceans

<正>China--Africa cultural exchange in Beijing underlines sororal relations in tribute toInternational Women’s DayChinese and African cultures,despite their apparent differences,are very similar and it is this that ignites people’s curiosity and makes them interested in knowing more about     

美国新任国家安全顾问琼斯

2008年12月1日,美国新当选总统奥巴马正式提名曾任北约欧洲盟军最高司令和美国海军陆战队司令的詹姆斯·琼斯（James L．Jones）出任国家安全顾问。鉴于这一职务的重要性,琼斯注定将成为对未来美国国家安全战略走向产生重要影响的关键性人物。     

高校人本管理刍议

高校要实现人本管理,必须尊重教师在办学中的主体地位,为教师成就事业、发展自己提供平台;要尊重学生学习的主体地位,促进学生的全面发展.用以人为本的管理理念指导高校的管理工作,须坚持学校整体发展与师生利益目标追求的有机统一、环境条件建设与师生成长发展需要的有机统一、管理者的职权与被管理者承受能力的有机统一.高校实施人本管理必须完善管理制度和运行机制、更新管理人员的观念、提高管理人员的素质并加强学校投入.     

论构建和谐社会的底线——司法公正——从一次调查分析我国的司法现状及改革对策

和谐社会的根基就是民主法治,而法治社会则必须保证司法公正。在构建社会主义和谐社会的进程中,依靠公正的司法来维护社会的公平与正义,通过司法裁决的方式来解决社会问题、经济问题乃至政治问题,应当成为整个社会的首选。因此,探究影响司法公正的原因,实现和维护司法公正,已经成为构建和谐社会的迫切要求与重要任务。     

The Impact of Political Connections on Donations to Chinese NGOs

ABSTRACT

In this study, we explore the returns to political connections in non-corporate contexts within China, a country transitioning from a planned to market economy. Using China as an empirical case study, we investigate two separate, but related, hypotheses on the financial benefits of political connections for a sample of 1,435 Chinese foundations from 2005–2011. This extends Western donation determinants literature to a Chinese context and political guanxi (social relationships where individuals or organizations exchange future favors or gifts) research to non-corporate contexts. Our empirical results show that there is no relationship between the presence of state employees on an NGO's staff (a measure of political guanxi) and private donations. However, there is a small but positive relationship between the amount of government funding an NGO receives (a signal of legitimacy) and private donations. These findings suggest that, in post-communist countries such as China, donors may not be seeking future favors from their contributions and instead are interested in developing a robust civil society with legitimate, high-quality NGOs. Additionally, the similarity between Western donation determinants research findings and Chinese donation determinants, in this article, requires future comparative studies of both how and why donors make decisions.     

新瓶旧酒老调重弹--解读布什2006年国情咨文

1月31日,美国总统布什在国会山发表了2006年度国情咨文,阐述了白宫在新一年中的内政和外交政策.这是布什第二任期以来发表的第二份国情咨文.在52分钟的演讲中,布什首先老调重谈外交领域"推广民主自由"的重要性,就是要在世界上"结束暴政,推进自由",在伊拉克和阿富汗继续坚持并与恐怖主义斗争到底,使美国更加安全.     

坚持特色发挥优势促进参政议政

各民主党派不可能对事关国计民生的所有问题都提出建设性的意见.各民主党派的人员构成、业务领域和特色优势均不同,在参政议政过程中,应充分发挥所从事的领域和专业方面的优势和特长,着力在本领域、本行业如何发展变革上多作文章.要保持自身的特色,将自身的特色与经济社会的发展紧密结合起来,提出有价值的意见、建议,从而形成有专业特色的...