A study on the false positive rate of Stegdetect

In this paper we analyse Stegdetect, one of the well-known image steganalysis tools, to study its false positive rate. In doing so, we process more than 40,000 images randomly downloaded from the Internet using Google images, together with 25,000 images from the ASIRRA (Animal Species Image Recognition for Restricting Access) public corpus. The aim of this study is to help digital forensic analysts, aiming to study a large number of image files during an investigation, to better understand the capabilities and the limitations of steganalysis tools like Stegdetect. The results obtained show that the rate of false positives generated by Stegdetect depends highly on the chosen sensitivity value, and it is generally quite high. This should support the forensic expert to have better interpretation in their results, and taking the false positive rates into consideration. Additionally, we have provided a detailed statistical analysis for the obtained results to study the difference in detection between selected groups, close groups and different groups of images. This method can be applied to any steganalysis tool, which gives the analyst a better understanding of the detection results, especially when he has no prior information about the false positive rate of the tool.     

Afghanistan since the revolution

Buddhism under Mao. By Holmes Welch. Cambridge, Mass., Harvard University Press, 1972. Pp. 666. Illus.     

Globalization and transnational class relations: Some problems of conceptualization

This article argues that class analysis in the post-cold war era is still valid and that transnational class relations is an important topic for investigation when studying globalization. However, such a study is replete with many theoretical and methodological problems which have yet to be resolved. Using the pioneering works of Cox and Sklair as its starting point, this article addresses the problematics of conceptualizing transnational class relations in the context of capturing a globalization process by focusing on three interrelated issues: (1) globalization and the reconfiguration of class relations; (2) emerging global class structure and the dominant class; and (3) subordinate groups vis-à-vis the dominant class. Cautioning that one should not overwork the concept in our theoretical endeavour, and not to assume the formation of transnational classes just because there are domestic classes that serve in global forces of production, this article raises several questions in the conceptualization of transnational class relations and offers some new propositions.     

Legal reform or erasure of history? The politics of moral crimes in Afghanistan

ABSTRACT

In this article we reflect on our efforts to study the prosecution of moral crimes in Afghanistan. In the process of collating information about men and women imprisoned for moral crimes such as adultery, we found evidence that pointed to large-scale incarceration of men for the uncodified crime of elopement. After establishing this fact through a careful review of official data, the article considers two interrelated themes. First, we argue that government attempts to conceal its extralegal practices cannot be reduced to the question of a corrupt bureaucracy or weak governance. Rather, they reflect a fundamental tension between a modern state’s interest in projecting the rule of (codified) law and societal expectations arising from both Islamic and customary law. Second, we suggest that officials seek to address this conceptual tension between the different bodies of law through a complex process involving both accommodation and concealment. In day-to-day judicial practice, ‘assimilation’ refers to attempts to rely on sharia provisions to accommodate customary practices which have no counterpart in statutory law. ‘Dissimulation’ refers to bureaucratic actions aimed at concealing the actual practices which make such extralegal accommodations possible.     

The pious or the doctrinaire? who supports suicide terrorism in Indonesia?

ABSTRACT

Indonesia is generally viewed as a moderate Muslim nation that episodically struggles with terrorism. Between 1981 and the end of 2016, Indonesia experienced 156 attacks from some 15 Islamist militant groups. However, the lineaments of popular support for Islamist militancy in Indonesia remain understudied. In this paper, we expand upon the existing literature on popular support for Islamist violence in Indonesia by replicating and extending the empirical framework for modeling the relationship between support for various conceptualizations of Shari’a and support for Islamist violence offered by Fair, Littman and Nugent (2018) for Pakistan and extended to Bangladesh by Fair, Hamza and Heller (2017). To do so, we conduct ordered logistical regression analysis of Pew survey data which includes information about respondents’ religious beliefs and practice as well as support for Islamist violence. We find considerable evidence that their framework is useful for understanding support for violence in Indonesia.     

Dimensions of Politics in the European Parliament

We investigate the dimensionality of politics in the European Parliament by applying a scaling method to all roll-call votes between 1979 and 2001 in the European Parliament. Contrary to most existing studies using these methods, we are able to interpret the substantive content of the observed dimensions using exogenous measures of national party policy positions. We find that the main dimension of politics in the European Union's only elected institution is the classic left-right dimension found in domestic politics. A second dimension is also present, although to a lesser extent, which captures government-opposition conflicts as well as national and European party positions on European integration.