0


网络数据推理与学习

Inference and Learning with Networked Data
课程网址: http://videolectures.net/mmdss07_provost_ilwn/  
主讲教师: Foster Provost
开课单位: 纽约大学
开课时间: 2008-01-15
课程语种: 英语
中文简介:
在许多应用程序中,我们希望推断出在复杂网络中互连的实体。例如,电话,电子邮件,即时通讯和网络指针将人们链接到庞大的社交网络。然而,传统的统计和机器学习分类方法假设实体彼此独立。我首先讨论网络数据中“分类”(评分)的各种应用,从欺诈检测到反恐到基于网络的营销。然后,我讨论网络数据的四个特征,这些特征有时可以比传统分类更有效:(i)模型可以考虑“通过关联产生内疚”,(ii)可以“集体”进行推理,从而推断链接实体相互加强每个另外,(iii)链接实体的特征可以包含在模型中,并且(iv)模型可以包含特定标识符,例如特定个体的身份,以改进推理。我展示的结果证明了这些技术的有效性。
课程简介: In many applications we would like to draw inferences about entities that are interconnected in complex networks. For example, calls, emails, IM, and web pointers link people into huge social networks. However, traditional statistical and machine learning classification methods assume that entities are independent of each other. I start by discussing various applications of "classification" (scoring) in networked data, from fraud detection to counterterrorism to network-based marketing. I then discuss four characteristics of networked data that allow improvements-- sometimes substantial--over traditional classification: (i) models can take into account "guilt by association," (ii) inference can be performed "collectively," whereby inferences on linked entities mutually reinforce each other, (iii) characteristics of linked entities can be incorporated in models, and (iv) models can incorporate specific identifiers, such as the identities of particular individuals, to improve inference. I present results demonstrating the effectiveness of these techniques.
关 键 词: 复杂网络; 应用程序; 机器学习
课程来源: 视频讲座网
最后编审: 2019-07-24:cwx
阅读次数: 28