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Visualizing enterprise-wide security (VIEWS)

Visualizing enterprise-wide security (VIEWS)

引用

Annual Computer Security Applications conference

作者： J.J. Brennan D. Faatz M. Rudell C. Zimmerman MITRE Corporation USA

this paper discusses VIEWS, a specification for building diagrams that describe the security features of systems. the authors' recent experience with providing security architecture and engineering support to organizations with large, distributed applications suggests that security architecture and assurance efforts could benefit by following other engineering disciplines, where using graphical models is the norm. Security diagrams can help security architects understand a system 's security posture and can assist them in detecting vulnerabilities. Additionally, diagrams facilitate communications about the security features of a design. the output of a modeling effort using VIEWS is a diagram depicting a system's security features as well as those of the environment in which the system operates. A goal of VIEWS is to allow the display of important security features without injecting cluttering detail. this paper presents examples of security diagrams built with VIEWS.

关键词： Visualization Communication system security Information security Computer security Data security Buildings Graphical models Displays Technology transfer Design engineering

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VR modeler: from image sequences to 3D models 04

VR modeler: from image sequences to 3D models

引用

Proceedings of the 20th Spring conference on Computer Graphics

作者： Mario Sormann Joachim Bauer Christopher Zach Andreas Klaus Konrad Karner VRVis Research Center

In this paper we present a novel interactive modeling system, called VR Modeler, to create 3D geometric models from a set of photographs. In our approach standard automatic reconstruction techniques are assisted by a ... 详细信息

ISBN: (纸本)9781581139679

In this paper we present a novel interactive modeling system, called VR Modeler, to create 3D geometric models from a set of photographs. In our approach standard automatic reconstruction techniques are assisted by a human operator. the modeling system is efficient and easy to use because the user can concentrate on the 2D segmentation and interpretation of the scene whereas our system is responsible for the corresponding 3D information. therefore we developed the user interface of VR Modeler as a monocular 3D modeling system. Additionally, we are able to obtain coarse as well as high resolution models from architectural scenes. Finally, we tested the modeling system on different types of datasets to demonstrate the usability of our approach.

关键词： image sequences feature based modeling photogrammetry user interface interactive modeling system 3D modeling 3D reconstruction

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Incremental quality driven software migration to object oriented systems

Incremental quality driven software migration to object orie...

引用

International conference on Software Maintenance (ICSM)

作者： Ying Zou Department of Electrical & Computer Engineering Queen's University Kingston ONT Canada

ISBN: (纸本)0769522130

In the context of software maintenance, legacy software systems are continuously re-engineered in order to correct errors, provide new functionality, or port them into modern platforms. However, software re-engineering activities should not occur in a vacuum, and it is important to incorporate non-functional requirements as part of the re-engineering process. this work presents an incremental reengineering framework that allows for quality requirements to be modeled as soft-goals, and transformations to be applied selectively towards achieving specific quality requirements for the target system. Moreover, to deal with large software systems, a system can be decomposed into a collection of smaller clusters. the reengineering framework can be applied incrementally to each of these clusters and results are assembled to produce the final system. Using the theory presented We developed a reengineering toolkit to automatically migrate procedural systems to object oriented platforms. We used the toolkit to migrate a number of open source systems including Apache, Bash and Clips. the obtained results demonstrate the effectiveness, usefulness, and scalability of our proposed incremental quality driven migration framework.

关键词： Software quality Object oriented modeling Software systems Software maintenance Scalability conference management Risk management Computer errors Error correction Assembly systems

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Embedding distributed generation in a national energy planning procedure

Embedding distributed generation in a national energy planni...

引用

AFRICON conference

作者： C. Cormio M. Dicorato A. Minoia M. Trovato

In this work, the conditions and the degree of DG exploitation are investigated in a national energy planning. To this purpose, a bottom-up energy system optimization model is used to support policy planning for the sustainable use of energy. the national power system is modelled through the energy flow optimization model (EFOM) as a network of energy chains, starting from the primary energy supply and ending in the end use sectors. the study is carried out over a period of 15-20 years assuming feasible scenarios that take into account the characteristics and availability of different technologies and on policy measures such as energy taxes or constraints for the amounts of emissions and energy resources. the proposed methodology is applied to the case of the Italian energy system.

关键词： Power system modeling Power system planning Power generation Cogeneration Costs Electricity supply industry Availability Energy measurement Finance Energy resources

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Automatic generation and analysis of NIDS attacks

Automatic generation and analysis of NIDS attacks

引用

Annual Computer Security Applications conference

作者： S. Rubin S. Jha B.P. Miller Computer Sciences Department University of Wisconsin Madison USA

A common way to elude a signature-based NIDS is to transform an attack instance that the NIDS recognizes into another instance that it misses. For example, to avoid matching the attack payload to a NIDS signature, attackers split the payload into several TCP packets or hide it between benign messages. We observe that different attack instances can be derived from each other using simple transformations. We model these transformations as inference rules in a natural-deduction system. Starting from an exemplary attack instance, we use an inference engine to automatically generate all possible instances derived by a set of rules. the result is a simple yet powerful tool capable of both generating attack instances for NIDS testing and determining whether a given sequence of packets is an attack. In several testing phases using different sets of rules, our tool exposed serious vulnerabilities in Snort - a widely deployed NIDS. Attackers acquainted with these vulnerabilities would have been able to construct instances that elude Snort for any TCP-based attack, any Web-CGI attack, and any attack whose signature is a certain type of regular expression.

关键词： Intrusion detection Testing Payloads Engines Concrete Power system modeling Power generation Monitoring Uniform resource locators Feeds

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BOSS: browsing OPTICS-plots for similarity search

BOSS: browsing OPTICS-plots for similarity search

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International conference on Data Engineering

作者： S. Brecheisen H.-P. Kriegel P. Kroger M. Pfeifle M. Viermetz M. Potke Institute for Computer Science University of Munich (LMU) Germany Sd and m AG software design and management Germany

An increasing number of database applications have emerged for which efficient and effective support for similarity search is substantial. Particularly, the task of finding similar shapes in 2D and 3D becomes more and more important. Examples for new applications that require the retrieval of similar 3D objects include databases for molecular biology, medical imaging and computer aided design. Hierarchical clustering was shown to be effective for evaluating similarity models. Furthermore, visually analyzing cluster hierarchies helps the user, e.g. an engineer, to find and group similar objects. We present an interactive browsing tool called BOSS (browsing OPTICS-plots for similarity search), which utilizes solid automatic cluster recognition and extraction of meaningful cluster representatives in order to provide the user with significant and quick information.

关键词： Biomedical optical imaging Image databases Application software Shape Information retrieval Image retrieval Visual databases Biomedical imaging Biology computing Biological system modeling

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An intrusion detection tool for AODV-based ad hoc wireless networks

An intrusion detection tool for AODV-based ad hoc wireless n...

引用

Annual Computer Security Applications conference

作者： G. Vigna S. Gwalani K. Srinivasan E.M. Belding-Royer R.A. Kemmerer Department of Computer Science University of California Santa Barbara USA Department of Computer Science University of California Santa Barbara

Mobile ad hoc network routing protocols are highly susceptible to subversion. Previous research in securing these protocols has typically used techniques based on encryption and redundant transmission. these techniques prevent a range of attacks against routing protocols but are expensive to deploy on energy-constrained wireless devices. Experience in securing wired networks has demonstrated that, in addition to intrusion prevention techniques, it is useful to deploy intrusion detection techniques as a second line of defense. In this paper, we discuss some of the threats to wireless ad hoc networks, and, specifically, some attacks against the AODV routing protocol. We also present a tool aimed at real-time detection of these attacks. the tool monitors network packets to detect local and distributed attacks within its radio range. Experiments show that the tool provides effective intrusion detection functionality while using only a limited amount of resources.

关键词： Intrusion detection Wireless networks Mobile ad hoc networks Ad hoc networks Routing protocols Computational modeling Computer science Cryptography Communication system security Network topology

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Future of simulation in biotechnology industry 04

Future of simulation in biotechnology industry

引用

Simulation Winter conference

作者： P.V. Saraph Bayer HealthCare-Biological Products Berkeley CA USA

ISBN: (纸本)9780780387867

In the 21st century, the biotechnology industry has the potential to inspire a number of management tools and theories, just as the automobile industry did in the 20th century. this paper explores the opportunities for simulation in biotechnology over the next few years and provides structure for the panel discussion in biotechnology and health care track. We detail the structure for biotechnology industry, review status and opportunities for simulation and present gap analysis of opportunities and tools available. the purpose of the panel discussion is to discuss the role for simulation community in biotechnology industry over the next few years and identify key areas where simulation can add value.

关键词： Biotechnology Drugs Biological system modeling Analytical models Manufacturing industries Production systems Humans Marketing and sales Marketing management Clinical trials

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Identification of a model to simulate the automobile accessibility movement

Identification of a model to simulate the automobile accessi...

引用

IEEE International conference on systems, Man and Cybernetics

作者： M. Lempereur P. Pudlo P. Gorce F.-X. Lepoutre LAMM UMR CNRS 8530 Universita de Valenciennes et du Hainaut-Cambrésis Valenciennes France éLESPEA 31-62 Université de Tlemcen La Garde France

the presented works are a part of the realization of an automobile accessibility movement simulator. the aim of this paper is to propose an optimization step of the kinematic model representing the human body. this model is made of two rigid bodies representing the trunk (torso and pelvis) and 4 simple open kinematics chains, in a star-shaped topology, with 7 degrees of freedom constituting the arms and the legs. the reconstruction of the joint angles is computed from the spatial trajectories measurement of some particular points of the body. the criterion optimization is the difference between the experimental and reconstructed trajectories of the end effectors. In results, the best body of reference is the torso and the position of the joint between the torso and the pelvis is located at 20% of the trunk length (roughly at the 10th thoracic vertebra)

关键词： Automobiles Biological system modeling Torso Kinematics Pelvis Humans Topology Arm Leg Joints

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optimization methods for minimum power multicasting in wireless networks with sectored antennas

Optimization methods for minimum power multicasting in wirel...

引用

IEEE conference on Wireless Communications and Networking

作者： A.K. Das R.J. Marks M. El-Sharkawi P. Arabshahi A. Gray Department of Electrical Engineering University of Washington Seattle WA USA School of Engineering and Computer Science Baylor University Waco TX USA Jet Propulsion Laboratory Pasadena CA USA

In this paper the problem of minimum power multicasting in wireless networks with sectored antennas is considered. For omnidirectional antenna systems, a transmission from node i to node j will also reach all nodes which are closer to i than j. Depending on the network geometry, this strategy can be highly power efficient In ideal sectored antenna systems, however, this phenomenon is sector specific; i.e., only those nodes which are located in the same sector as j will receive the transmission implicitly. though this might seem an apparent disadvantage, the higher gains associated with directional antennas (as opposed to omni-directional antennas) allow for reduced transmission powers without sacrificing the signal-to-interference ratio at the receiver. In this paper, we first develop a mixed integer linear programming model for optimal solution of the minimum power multicast problem with sectored antennas. Subsequently, we discuss a biologically inspired algorithm for solving the problem to near-optimality at a very reasonable computation time. Experiments on randomly generated 10, 20 and 30-node networks indicate that near-optimal solutions can be obtained using the proposed algorithm.

关键词： optimization methods Wireless networks Transmitting antennas Receiving antennas Multicast algorithms Geometry Directional antennas Directive antennas Mixed integer linear programming Biological system modeling

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