ISIS: Protecting children in online social networks

Isis项目的目的是制定一个以道德为中心的监测框架和工具，以支持执法机构监管在线社交网络，以保护儿童。该项目将开发自然语言分析技术，以帮助从聊天记录和监控机制中识别恋童癖者，这些机制可以非侵入性地附加到文件共享系统中，以识别虐待儿童媒体的分发者。将严格研究与此类监测活动有关的道德问题，并不断将其反馈到框架和工具的开发中。该项目结果将由儿童剥削和在线保护（CEOP）中心使用和评估，作为其自身警务活动的一部分。近年来，在线社交网络的数量和使用迅速增加。这些社会网络在性质上各不相同，从聊天系统，例如MSN、Skype和IRC，到在线社区，例如MySpace和YouTube，再到文件共享系统，例如点对点网络：Gnutella、BitTorrent、FastTrack等。就儿童剥削而言，这些社交网络构成了两个重大风险：儿童通过聊天室和网络社区等论坛积极参与社会互动。恋童癖者可以利用这些论坛对儿童下手（正如最近Lee Costi被捕并被定罪[卫报，2006年6月23日]所强调的），甚至计划与恋童癖有关的活动（正如最近有恋童癖者被定罪，他们利用这些系统计划虐待儿童[卫报，2007年2月6日]）。这些担忧反映在虚拟全球工作组的成立、CEOP的启动和苏格兰立法中，这些立法将在聊天室中“修饰”儿童定为犯罪[苏格兰议会，2004年10月]。恋童癖者分发和共享虐待儿童媒体恋童癖者可以利用文件共享系统等机制建立自己的社交网络，以分发和共享虐待儿童媒体。兰开斯特大学（Lancaster University）最近的一项开创性研究突出了此类文件共享系统上非法媒体（包括虐待儿童的媒体）的分布规模，该研究发现，Gnutella点对点网络上1.6%的搜索和2.4%的回复与非法性内容有关。考虑到系统的规模，这些结果表明，仅在Gnutella网络上，每秒就会发生数百次对非法图像的搜索。研究还发现，在那些分享非法色情内容的用户中，57%的人完全致力于这种传播，而另外17%的人分享的材料中有一半涉及此类内容。

The aim of the Isis project is to develop an ethics-centred monitoring framework and tools for supporting law enforcement agencies in policing online social networks for the purpose of protecting children. The project will develop natural language analysis techniques to help identify paedophiles from chat logs and monitoring mechanisms that can be non-invasively attached to file sharing systems for identifying the distributors of child abuse media. The ethical issues associated with such monitoring activities will be rigorously studied and consistently fed back into the development of the framework and tools. The project results will be used and evaluated by the Child Exploitation and Online Protection (CEOP) centre as part of their own policing activities. Recent years have seen a rapid rise in the number and use of online social networks. Such social networks vary in nature from chat systems, for example, MSN, Skype and IRC, to online communities, such as, MySpace and YouTube, through to file sharing systems, for instance, peer-to-peer networks: Gnutella, BitTorrent, FastTrack, etc. These social networks pose two significant risks in terms of child exploitation:1. Paedophiles predating on childrenChildren actively participate in social interactions using forums such as chat rooms and web-based communities. Paedophiles can use such forums to predate on children (as highlighted by the recent arrest and conviction of Lee Costi [Guardian Newspaper, 23rd June 2006]), or even to plan paedophilia-related activities (as illustrated by the recent conviction of paedophiles who were using such systems to plan child abuse [Guardian Newspaper, 6th Feb. 2007]). These concerns are reflected by the formation of the Virtual Global Taskforce, the launch of the CEOP and Scottish legislation to criminalise the 'grooming' of children in chat rooms [Scottish Parliament, Oct. 2004].2. Paedophiles distributing and sharing child abuse mediaPaedophiles can formulate their own social networks using mechanisms, such as file-sharing systems, in order to distribute and share child abuse media. The scale of distribution of illegal media (including child abuse media) on such file-sharing systems was highlighted by a recent pioneering study at Lancaster University, which found that 1.6% of searches and 2.4% of responses on the Gnutella peer-to-peer network relate to illegal sexual content. Given the system's scale, these results suggest that, on the Gnutella network alone, hundreds of searches for illegal images occur each second. The study also found that, of those users sharing illegal sexual content, 57% were solely devoted to such distribution while half of the material shared by another 17% involved such content.