Network Interdiction under Uncertainty

We consider variants to one of the most common network interdiction formulations: the shortest path interdiction problem. This problem involves leader and a follower playing a zero-sum game over a directed network. The leader interdicts a set of arcs, and arc costs increase each time they are interdicted. The follower observes the leader\u27s actions and selects a shortest path in response. The leader\u27s optimal interdiction strategy maximizes the follower\u27s minimum-cost path. Our first variant allows the follower to improve the network after the interdiction by lowering the costs of some arcs, and the leader is uncertain regarding the follower\u27s cardinality budget restricting the arc improvements. We propose a multiobjective approach for this problem, with each objective corresponding to a different possible improvement budget value. To this end, we also present the modified augmented weighted Tchebychev norm, which can be used to generate a complete efficient set of solutions to a discrete multi-objective optimization problem, and which tends to scale better than competing methods as the number of objectives grows. In our second variant, the leader selects a policy of randomized interdiction actions, and the follower uses the probability of where interdictions are deployed on the network to select a path having the minimum expected cost. We show that this continuous non-convex problem becomes strongly NP-hard when the cost functions are convex or when they are concave. After formally describing each variant, we present various algorithms for solving them, and we examine the efficacy of all our algorithms on test beds of randomly generated instances

Department of Defense Dictionary of Military and Associated Terms

The Joint Publication 1-02, Department of Defense Dictionary of Military and Associated Terms sets forth standard US military and associated terminology to encompass the joint activity of the Armed Forces of the United States. These military and associated terms, together with their definitions, constitute approved Department of Defense (DOD) terminology for general use by all DOD components

Impact and Implications of the WTO Trade Facilitation Agreement in East and Southern Africa: 2nd WCO ESA Regional Research Conference

This book presents the papers, report and outcomes of the 2nd WCO ESA Regional Research Conference which was hosted by the Regional Training Centre (RTC) Kenya on the 23rd and 24th November, 2017, at the Kenya School of Monetary Studies (KSMS) in Nairobi, Kenya. It was co-organized by the ROCB and the RTC Kenya and attended by more than 200 participants from 20 nations. Participants included researchers and officials from various Customs administrations in the East and Southern Africa Region, WCO ESA Regional Training Centres (RTCs), the WCO, the African Union, the World Bank, Africa Development Bank, Regional Economic Committees (RECs) (the East African Community), the Government of Australia, Kenyan ministries, the private sector, academia, and other cooperating partners. The theme of the conference was “Impacts and Implication of the Trade Facilitation Agreement and the WCO Mercator Programme to the ESA region” and covered the following topics: Impacts of the WTO Trade Facilitation Agreement in East and Southern Africa; Data Analysis for Effective Border Management in East and Southern Africa; Best Practices in Digital Customs in East and Southern Africa; E-commerce as a Driver for Economic Growth in East and Southern Africa; Securing and Facilitating Trade in East and Southern Africa; and Regional Integration: Addressing Levels of Intraregional Trade in East and Southern Africa. The Governing Council of the World Customs Organization, East and Southern Africa region, established the regional research programme aiming to build institutional capacity and the body of knowledge in customs through research. The objective of the programme is to encourage research on topical themes for customs in East and Southern Africa. The programme also aims to develop a body of knowledge to guide the decision-making process concerning trade facilitation and regional economic integration in the Region. It is also hoped that the research programme and the results from findings from the research initiatives will assist countries in sharing experiences, ideas, knowledge, and information on new innovations to improve Customs operations while creating new inventions to continue modernizing customs to ease facilitation of trade in East and Southern Africa. The envisaged output from this process will always be the publication of an e-book (and book) consisting of a consolidation of papers presented during the conference

The Contemporary Face of Transnational Criminal Organizations and the Threat they Pose to U.S. National Interest: A Global Perspective.

Traditional organized crime groups have consistently posed issues for la w enforcement; however, the contemporary TCOs present an even greater security risk and threat. TCOs thrive in countries with a weak rule of law and present a great threat to regional security in many parts of the world. Bribery and corruption employed by these groups further serve to destabilize already weak governments. These TCOs also present a major threat to U.S. and world financial systems by exploiting legitimate commerce, and in some cases creating parallel markets (“Transnational Organized,” 2011) . Finally, one of the most significant threats posed by contemporary TCOs is their alliances and willingness to work with terrorist and extremist organizations. This paper will focus on contemporary TCOs by giving a brief overview of the most common criminal enterprises associated with these groups, the nexus between various TCOs, the nexus between TCOs and terrorist and extremist groups, case studies highlighting the nexus, and the threats they pose to U.S. national interests

Information Application for Multicriterial Optimum

The management activity does not only include the techniques and methods of programming, organizing and allocation of resources, starting and control of operations, interventions but it also implies a great number of decisions regarding the launching, carrying on, modifying and carrying out of activities or choosing one of the possible variants so as to ensure that the goals should be reached. The activity of choosing one variant from several possible ones is often met with in maintenance management, such as: the selection of an optimum equipment, the choice of a firm for after/sale service, for supplying materials or spare parts which implies taking into account a large number of factors. The choice based on fundamental mathematic methods becomes feasible by using the current automatic data processing devices and this paper presents the “Xomc” application of establishing the multicriterial optimum.maintenance management, multicriterial optimum, fundamental mathematic methods

Academic Year 2019-2020 Faculty Excellence Showcase, AFIT Graduate School of Engineering & Management

An excerpt from the Dean\u27s Message: There is no place like the Air Force Institute of Technology (AFIT). There is no academic group like AFIT’s Graduate School of Engineering and Management. Although we run an educational institution similar to many other institutions of higher learning, we are different and unique because of our defense-focused graduate-research-based academic programs. Our programs are designed to be relevant and responsive to national defense needs. Our programs are aligned with the prevailing priorities of the US Air Force and the US Department of Defense. Our faculty team has the requisite critical mass of service-tested faculty members. The unique composition of pure civilian faculty, military faculty, and service-retired civilian faculty makes AFIT truly unique, unlike any other academic institution anywhere

Geopolitics of the Illicit: Linking the Global South and Europe

This anthology examines different dimensions of illicit commodity flows and asks how they can be understood through a geographical lens that looks from the Global South to Europe. By applying a supply chain perspective, it generates insights into how illegal, grey and legal markets merge at certain points in the production chain. This volume seeks to promote a holistic view through a 'thick description' of the specific flows and develops practical policy recommendations. It brings together contributions from authors from a wide range of backgrounds, including international scholars, journalists and specialists in both law enforcement and development cooperation. (publisher

The Smugglers\u27 Landscape: Geography, Route Selection and the Global Heroin Trade

This study focuses on transnational smuggling, and puts forth an analytical framework from the smugglers\u27 perspective with respect to route selection, focusing primarily on aspects of economic, political, and human geography. It is predicated on three interconnected decision-making domains that constitute the smuggler\u27s operational landscape, namely access, risk and connectivity, which interact to drive the smugglers\u27 perceptions of route attractiveness. The first two domains operate reciprocally, primarily at the national level of analysis, and together both shape and are shaped by the third at the transnational level to form a feedback loop. With respect to connectivity, the convention of the smuggling vector is also introduced. As a benchmark commodity, heroin is used to demonstrate the utility of this approach with the primary aim of applying and validating the generic geographic smuggling model, meant to be extensible in terms of space, time and commodity. A review of the literature, focusing on the range of smuggled commodities, the nature and evolution of smuggling actors, the complex relationship between smuggling networks and nation-states, and potential modes of transportation by land, water and air. A discussion of the spatial parameters of the global heroin trade itself, with specific reference to the geography of supply and demand, is also undertaken. For case studies, Afghanistan has been chosen as one of the two largest opium cultivators worldwide, as well as by virtue of its recent and dramatic history. In addition to established cocaine smuggling routes and methods, Colombia has also become a primary heroin source country with respect to the U.S. market. Finally, Nigeria is a known transit hub without being a center of production, demonstrating that factors other than mere proximity can be decisive. Each case study first examines those geographic and historical factors that shape heroin smuggling at the national level, focusing on the themes of terrain, tradition and domestic turmoil, before considering the various sets of smuggling vectors that proceed outward via various modes and points of transit to their final destinations. This methodology not only highlights data gaps inherent in analyzing black markets, but also optimizes extant sources of information