Nabil Adam

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Papers by Nabil Adam

Secure interoperation for effective data mining in border control and homeland security applications

by Rey Koslowski and Nabil Adam

Proceedings of the 2006 national conference on Digital government research - dg.o '06, 2006

Our NSF funded project aims at providing decision makers with the ability to extract and fuse inf... more Our NSF funded project aims at providing decision makers with the ability to extract and fuse information from multiple, heterogeneous sources in response to a query while operating under a decentralized security administration. Our motivation comes from US Customs, which embarked on a major modernization initiative of its Information Technology systems. Drawing in data from Customs trade systems, targeting inspectors review manifest information as well as strategic and tactical intelligence to determine "high-risk" shipments and containers. This entails a considerable level of communication and data sharing between various government agencies. Based on the idea of "Smart Borders", the system will utilize data available from different agencies, ports and customs divisions to supplement the profiling by targeting towards anomalies, and detect various flags raised by non-conforming shipments or abnormal behavior of inbound cargos and raise a combination of alerts. The output of this project would ideally enhance the security aspect of the Automated Commercial Environment (ACE) system by incorporating the concept of semantic interoperability, anomaly detection and subsequent spatial and geographical visualization of information that can help Customs inspectors make better decisions.

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Semantic Graph based Knowledge Discovery from Heterogeneous Information Sources

by A. Suenbuel and Nabil Adam

Semantics-based Threat Structure Mining

by Nabil Adam and I. Nassi

Today's National and Interstate border control agencies are flooded with alerts generated fro... more Today's National and Interstate border control agencies are flooded with alerts generated from various monitoring devices. There is an urgent need to uncover potential threats to effectively respond to an event. In this paper, we propose a Semantic Threat Mining approach, to discover threats using the spatio-temporal and semantic relationships among events and data. We represent the potentially dangerous collusion

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Huang: Modeling and Analysis of Workflows Using Petri Nets

Journal of Intelligent Information Systems, 1998

Dynamic Composition of Workflows for Customized eGovernment Service Delivery

DG.O (Inter)National Conference on Digital Government Research, 2002

Today, many government agencies provide tremendous amount of information and services via the Web... more Today, many government agencies provide tremendous amount of information and services via the Web, often overwhelming the citizens. Personalization and customization in delivering in- formation and government services remains as a major challenge. In this paper, we present a novel approach for dynamically composing workflows to delivering customized government services to citizens. Such a system is especially important in a

Migrating to optimal RBAC with minimal perturbation

Proceedings of the 13th ACM symposium on Access control models and technologies - SACMAT '08, 2008

Devising a complete and correct set of roles has been recognized as one of the most important and... more Devising a complete and correct set of roles has been recognized as one of the most important and challenging tasks in implementing role based access control. A key problem related to this is the notion of goodness -when is a set of roles good? Recently, the role mining problem (RMP) has been defined as the problem of discovering an optimal set of roles from existing user permissions. Several different objectives for optimality have been proposed. However, one problem with these definitions is that often organizations already have a deployed set of roles and wish to optimize this set. Even if an optimal set of roles is discovered, if this is widely different, it is impossible to simply throw out the deployed roles and start using the new ones as this may disrupt organizational processes and separation of duty constraints that are defined on roles. Essentially, what is missing is taking role migration cost into account when defining optimality, which would allow us to come up with the best suited set of roles.

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Static Program Analysis