Privacy preserving in serial data and social network publishing.

Liu, Jia."August 2010."Thesis (M.Phil.)--Chinese University of Hong Kong, 2010.Includes bibliographical references (p. 69-72).Abstracts in English and Chinese.Chapter 1 --- Introduction --- p.1Chapter 2 --- Related Work --- p.3Chapter 3 --- Privacy Preserving Network Publication against Structural Attacks --- p.5Chapter 3.1 --- Background and Motivation --- p.5Chapter 3.1.1 --- Adversary knowledge --- p.6Chapter 3.1.2 --- Targets of Protection --- p.7Chapter 3.1.3 --- Challenges and Contributions --- p.10Chapter 3.2 --- Preliminaries and Problem Definition --- p.11Chapter 3.3 --- Solution:K-Isomorphism --- p.15Chapter 3.4 --- Algorithm --- p.18Chapter 3.4.1 --- Refined Algorithm --- p.21Chapter 3.4.2 --- Locating Vertex Disjoint Embeddings --- p.30Chapter 3.4.3 --- Dynamic Releases --- p.32Chapter 3.5 --- Experimental Evaluation --- p.34Chapter 3.5.1 --- Datasets --- p.34Chapter 3.5.2 --- Data Structure of K-Isomorphism --- p.37Chapter 3.5.3 --- Data Utilities and Runtime --- p.42Chapter 3.5.4 --- Dynamic Releases --- p.47Chapter 3.6 --- Conclusions --- p.47Chapter 4 --- Global Privacy Guarantee in Serial Data Publishing --- p.49Chapter 4.1 --- Background and Motivation --- p.49Chapter 4.2 --- Problem Definition --- p.54Chapter 4.3 --- Breach Probability Analysis --- p.57Chapter 4.4 --- Anonymization --- p.58Chapter 4.4.1 --- AG size Ratio --- p.58Chapter 4.4.2 --- Constant-Ratio Strategy --- p.59Chapter 4.4.3 --- Geometric Strategy --- p.61Chapter 4.5 --- Experiment --- p.62Chapter 4.5.1 --- Dataset --- p.62Chapter 4.5.2 --- Anonymization --- p.63Chapter 4.5.3 --- Evaluation --- p.64Chapter 4.6 --- Conclusion --- p.68Bibliography --- p.6

Copyright protection for the electronic distribution of text documents

Each copy of a text document can be made different in a nearly invisible way by repositioning or modifying the appearance of different elements of text, i.e., lines, words, or characters. A unique copy can be registered with its recipient, so that subsequent unauthorized copies that are retrieved can be traced back to the original owner. In this paper we describe and compare several mechanisms for marking documents and several other mechanisms for decoding the marks after documents have been subjected to common types of distortion. The marks are intended to protect documents of limited value that are owned by individuals who would rather possess a legal than an illegal copy if they can be distinguished. We will describe attacks that remove the marks and countermeasures to those attacks. An architecture is described for distributing a large number of copies without burdening the publisher with creating and transmitting the unique documents. The architecture also allows the publisher to determine the identity of a recipient who has illegally redistributed the document, without compromising the privacy of individuals who are not operating illegally. Two experimental systems are described. One was used to distribute an issue of the IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, and the second was used to mark copies of company private memoranda

Resisting the Great Endarkenment: On the Future of Philosophy

Elijah Millgram’s book The Great Endarkenment takes philosophy to task for failing to note the kinds of creatures we are (serial hyperspecializers) and what that means for philosophy. In this commentary, I will complicate the picture he draws, while suggesting a more hopeful path forward. First, I argue that we are not actually serial hyperspecializers. Nevertheless, we are hyperspecializers, and this is the main source of the looming endarkenment. I will suggest that a proper understanding of expertise, particularly the requirement that experts (at least experts whose success is not readily assessable) be required to explicate their judgments helps to mitigate the threat of siloed expertise and endarkenment. Further, I argue that grappling directly with the institutional structures that encourage narrow and isolated hyperspecialists in academia can be a way to avoid endarkenment problems. The current landscape of academia, with its valorization of narrow disciplinary expertise, is neither necessary nor sustainable. In order to change this landscape, we need to understand how current incentives construct epistemic niches, and what we might change in order to reshape the ecology of academia