| Hydrodynamic Agents in the Littoral Environment. Phase 1 Progress Report |
06 JUL 2007 |
84 pages |
| Authors:
Charles M. Bachmann; C. R. Nichols; Richard P. Mied; Chung H. Read; Ellen Bennert; Robert A. Fusina; Timothy F. Donato; NAVAL RESEARCH LAB WASHINGTON DC REMOTE SENSING DIV
|
 | Hydrodynamic Agents in the Littoral Environment (HALE) is a National Geospatial-Intelligence Agency program aimed at producing tidal predictions from imagery-derived water levels. HALE has been divided into three phases which lead to a protocol. This report describes Phase I and introduces work for Phase II. Approximately 62 satellite images of the Han River Estuary, Republic of Korea, over the 20-year period from 1987 to 2006 were processed and analyzed. The ... |
|
| Presence |
01 JUL 2007 |
17 pages |
| Authors:
Erik den Dekker; Nico Delleman; TNO HUMAN FACTORS SOESTERBERG (NETHERLANDS) THERMAL PHYSIOLOGY GROUP
|
| If one wants to turn virtual reality (VR) technology into an effective tool, it is vital to obtain a basic understanding of the key elements for success. A concept that has received a lot of attention from VR researchers is presence. Presence may be loosely described as the feeling of being there in the virtual world instead of just experiencing stimuli from displays (for a clear description of the difference ... |
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| F.I.R.E. Experiment Planning and Reporting Structure |
01 JUL 2007 |
56 pages |
| Authors:
Gordon Schacher; NAVAL POSTGRADUATE SCHOOL MONTEREY CA (MEYER) INST OF SYSTEMS ENGINEERING
|
| The FORCEnet Innovation and Research Enterprise (FIRE) knowledge management system is used for operational experiment planning and reporting. The system has a prescribed structure that includes forms and database reports for all planning and reporting elements. This report describes FIRE's structure and planning process, and provides directions for the input to be provided for each planning element. |
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| Computer-Aided Interval Change Analysis of Microcalcifications on Mammograms for Breast Cancer Detection |
01-Jul-2007 |
|
| Authors:
Lubomir Hadjiiski; MICHIGAN UNIV ANN ARBOR
|
 | The goal of this project is to develop a computer-aided diagnosis (CAD) system for automatic interval change analysis of microcalcification clusters on mammograms. Based on our regional registration method and a search program cluster candidates were detected within the local area on the prior. The cluster on the current image is then paired with the candidates to form true (TP-TP) or false (TP-FP) pairs and a correspondence classifier is designed ... |
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| Adaptive Web-page Content Identification |
JUL 2007 |
9 pages |
| Authors:
John Gibson; Ben Wellner; Susan Lubar; MITRE CORP BEDFORD MA
|
| Identifying which parts of a Web-page contain target content (e.g., the portion of an online news page that contains the actual article) is a significant problem that must be addressed for many Web-based applications. Most approaches to this problem involve crafting hand-tailored rules or scripts to extract the content, customized separately for particular Web sites. Besides requiring considerable time and effort to implement, hand-built extraction routines are brittle: they fail ... |
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| Standards for the Mobility Common Operational Picture (M-COP): Elements of Ground Vehicle Maneuver |
JUL 2007 |
235 pages |
| Authors:
Paul W. Richmond; Curtis L. Blais; Joyce A. Nagle; Niki C. Goerger; Burhman Q. Gates; Robin K. Burk; John Willis; Robert Keeter; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS
|
| Information needed to support ground mobility decision making is critical to the success of ground operations. The ability to rapidly obtain and process relevant information in a network-centric environment will empower warfare planners. In addition, future network centric operations that will include autonomous unmanned ground vehicles as envisioned in the Future Combat Systems program will increasingly require the exchange of well-structured information between human forces and robotic systems. Addressing this ... |
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| Fast Dimension Reduction Using Rademacher Series on Dual BCH Codes |
JUL 2007 |
17 pages |
| Authors:
Nir Ailon; Edo Liberty; YALE UNIV NEW HAVEN CT DEPT OF COMPUTER SCIENCE
|
| ABSTRACT: The Fast Johnson-Lindenstrauss Transform (FJLT) was recently discovered by Ailon and Chazelle as a novel technique for performing fast dimension reduction with small distortion.... The connection between geometry and discrete coding theory discussed here is interesting in its own right and may be useful in other algorithmic applications as well. INTRODUCTION: Applying random matrices is by now a well known technique for reducing dimensionality of vectors in Euclidean space ... |
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| Uninhabited Military Vehicles (UMVs): Human Factors Issues in Augmenting the Force (Vehicules Militaires sans Pilote (UMV): Questions Relatives aux Facteurs Humains lies a l'augmentation des Forces) |
JUL 2007 |
|
| Authors:
NATO RESEARCH AND TECHNOLOGY ORGANIZATION NEUILLY-SUR-SEINE (FRANCE)
|
| Uninhabited Military Vehicles (UMVs) are used to augment manned forces in dull, dirty, or dangerous tasks. Human factors issues range from control station design, to vehicle interoperability, and integration with manned systems. New principles are reviewed for supporting the operator, and for collaboration between multiple operators. Future study is needed on techniques for distributive collaboration, command and control of UMV teams, and enabling flexible human supervisory control of multiple, highly-automated ... |
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| Analysis of Shock and High-Rate Data for Ceramics: Strength and Failure of Brittle Solids |
JUL 2007 |
48 pages |
| Authors:
Dennis E. Grady; APPLIED RESEARCH ASSOCIATES INC ALBUQUERQUE NM
|
| Ceramics based on composition of the light intermetallic compounds, have demonstrated considerable success as a barrier material in armor applications. The exceptional strength-to-density ratio of ceramic plays a crucial role in the positive performance of ceramics in the terminal ballistic environment. Even the higher density ceramics, such as tungsten based materials, show promising behavior in space-limited armor applications. The implementation, optimization and evaluation of ceramic in armor systems benefit from ... |
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| Mathematics of Failures in Complex Systems: Characterization and Mitigation of Service Failures in Complex Dynamic Systems |
30 JUN 2007 |
142 pages |
| Authors:
Asok Ray; PENNSYLVANIA STATE UNIV UNIVERSITY PARK COLL OF ENGINEERING
|
| Objectives: The goal of this MURI project is to enhance dependability of complex engineering systems that include both human-operated and unmanned machinery. It focuses on pervasive fault tolerance based on the emerging information. The specific objective are: 1. Early detection of small anomalies in nonlinear and nonstationary dynamical systems. 2. Analysis and synthesis of robust decision and control systems to restrict the system behavior within desired specifications. 3. Development of ... |
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| Cooperation and Consensus Seeking for Teams of Unmanned Air Vehicles |
30 JUN 2007 |
69 pages |
| Authors:
Timothy W. McLain; Randal W. Beard; BRIGHAM YOUNG UNIV PROVO UT
|
| This report describes research in the area of cooperative control of unmanned air vehicles carried out at Brigham Young University with the support of AFOSR during the period from April 2004 to March 2007. Our research focused on cooperative control of unmanned air vehicles (UAVs). Under this AFOSR supported effort, we have sought to accomplish three primary objectives: 1) extend our current theoretical approach to encompass broader classes of cooperative ... |
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| Mixed-Initiative Development of Plans With Expressive Temporal Constraints |
14 JUN 2007 |
16 pages |
| Authors:
Martha E. Pollack; MICHIGAN UNIV ANN ARBOR DIV OF RESEARCH DEVELOPMENT AND ADMINISTRATION
|
| The overall objective of this project was die development of methods for efficiently finding solutions to problems that consist of sets of expressive constraints including both overconstrained and underconstrained situations. In either case, constraint management is necessary: in an overconstrained situation, it is necessary to determine how best to relax existing constraints so that a solution can be computed, while in an underconstrained situation, it is necessary to select good ... |
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| Timed Formalisms for Plan Ontology and Processes |
11 JUN 2007 |
21 pages |
| Authors:
Jin S. Dong; Jun Sun; Xian Zhang; NATIONAL UNIV OF SINGAPORE SCHOOL OF COMPUTING/COMPUTER SCIENCE DEPT
|
| In the context of military planning, recent research effort focuses more on specifying the static features and relations in the plan ontology. However, military plans, e.g. air campaign planning, have additional operations and timing requirements. In this project, the PI proposed an appropriate real-timed formalism, Timed CSP with some possible extensions, to model the plans. In this approach, Timed CSP is used to model the processes of the plans. The ... |
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| Development of a Computer-Aided Diagnosis System for Early Detection of Masses Using Retrospectively Detected Cancers on Prior Mammograms |
01 JUN 2007 |
85 pages |
| Authors:
Jun Wei; MICHIGAN UNIV ANN ARBOR
|
| The goal of this project is to develop a computer-aided diagnosis (CAD) system for mass detection using advanced computer vision techniques that will be trained with retrospectively detected cancers on prior mammograms. The new CAD system will be combined with our existing CAD system. When fully developed, the new dual CAD system should increase the sensitivity of detecting cancers at the early stage without compromising the sensitivity for other cancers. ... |
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| Towards Commanding Unmanned Ground Vehicle Movement in Unfamiliar Environments Using Unconstrained English: Initial Research Results |
01-Jun-2007 |
37 pages |
| Authors:
Robin Burk; Andrew Haas; Kevin Knuth; Benjamin Ring; Frederick I Moxley; MILITARY ACADEMY WEST POINT NY
|
| Sensemaking in the 21st century C2 environment will be critical not only for soldiers but also for autonomous equipment. Sensemaking by humans entails understanding the meaning and import of information, often conveyed via natural human language, about events and objects in the battlespace. Analogous sensemaking in autonomous and semi-autonomous UGVs requires cognitive robotics, i.e. the ability to link human language and concepts to robot perception and object recognition. Advanced sensemaking ... |
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| PAL Boot Camp: Preparing Cognitive Assistants for Deployment |
01-Jun-2007 |
19 pages |
| Authors:
Valdis Berzins; Michael Carlin; Volodymyr Ivanchenko; Douglas S Lange; SPACE AND NAVAL WARFARE SYSTEMS CENTER SAN DIEGO CA
|
| Most visions for decision support and information technology anticipate the use of machine learning to enable software to respond to an adapting environment, including the ability to learn capabilities while on-the-job. Currently, systems and software engineering processes hinder employment of task learning technology, because the adaptation it provides runs counter to our notions of stability. Similarly, systems must typically demonstrate satisfaction of requirements before deployment, rather than learn tasks while ... |
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| Gaps, Tools, and Evaluation Methodologies for Analyzing Irregular Warfare |
01-Jun-2007 |
14 pages |
| Authors:
Deborah V Duong; OFFICE OF THE SECRETARY OF DEFENSE (PROGRAM ANALYSIS AND EVALUATION) ARLINGTON VA SIMULATION ANALYSIS CENTER
|
| Different analysis techniques of Irregular Warfare needed: *Modeling and Simulation necessary for analysis of Course of Action and Resource Allocation *Conventional Warfare models use simple physics equations to back decisions on courses of action and resource allocation -Simple equations tell us, n airplanes are needed against m tanks -They can not tell us, n civil affairs officers are needed against m priests -But we still need to back our decisions! ... |
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| Validation Methodology for Agent-based Simulations |
01-Jun-2007 |
15 pages |
| Authors:
Michael P Bailey; MARINE CORPS COMBAT DEVELOPMENT COMMAND QUANTICO VA
|
| Agent-based simulations are desirable because they simulate interesting emergent aggregate behavior using modular reasoning applied to local conditions. The goals of simulation testing, part of the process of validation, is to determine if the simulation produces predicted and controlled results -- hence, we construct agent-based simulations predisposed to fail simulation testing procedures. In this work, we will describe our thinking on the alterations to the validation and testing process that ... |
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| Tutorial on Agent-based Modeling and Simulation |
01-Jun-2007 |
60 pages |
| Authors:
Michael J North; Charles M Macal; ARGONNE NATIONAL LAB IL
|
| Tutorial on Agent-based Modeling and Simulation * PRESENTATION GOALS -- How to think about agent-based modeling and simulation (ABMS) and agents -- How to do ABMS -- Explain how ABMS is Useful, Usable, and Used! * OUTLINE -- Background: What it is and where did ABMS come from? -- Applications of Agent-Based Models -- How to do Agent-Based Modeling. |
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| Large-Scale Dynamic Observation Planning for Unmanned Surface Vessels |
JUN 2007 |
135 pages |
| Authors:
John V. Miller; ALFRED P SLOAN SCHOOL OF MANAGEMENT CAMBRIDGE MA
|
| With recent advances in research and technology, autonomous surface vessel capabilities have steadily increased. These autonomous surface vessel technologies enable missions and tasks to be performed without the direction of human operators, and have changed the way scientists and engineers approach problems. Because these robotic devices can work without manned guidance, they can execute missions that are too difficult, dangerous, expensive, or tedious for human operators to attempt. The United ... |
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| An Image Morphing Technique Based on Optimal Mass Preserving Mapping |
JUN 2007 |
16 pages |
| Authors:
Lei Zhu; Yan Yang; Steven Haker; Allen Tannenbaum; GEORGIA INST OF TECH ATLANTA BIOENGINEERING CENTER
|
| Image morphing, or image interpolation in the time domain, deals with the metamorphosis of one image into another. In this paper, a new class of image morphing algorithms is proposed based on the theory of optimal mass transport. The L2 mass moving energy functional is modified by adding an intensity penalizing term, in order to reduce the undesired double exposure effect. It is an intensity-based approach and, thus, is parameter ... |
|
| Look-Up Table for Superconductor Digital-RF Predistorter |
JUN 2007 |
5 pages |
| Authors:
Timur V. Filippov; Anubhav Sahu; Alex F. Kirichenko; Deepnarayan Gupta; HYPRES INC ELMSFORD NY
|
| We have developed a high-speed pipelined superconductor look-up table to generate programmable predistortion functions for direct linearization of radio frequency "RF" power amplifiers. The look-up table comprises an address decoder and a memory matrix with throughput above 10 GHz. The decoder performs code-matching of each input word and its conversion into a row address of the memory matrix. We discuss different possible implementations of the address decoder, including a preferred ... |
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| Navy Requirements for Controlling Multiple Off-Board Robots Using the Autonomous Unmanned Vehicle Workbench |
JUN 2007 |
147 pages |
| Authors:
Dennis W. Monroe; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The Autonomous Unmanned Vehicle Workbench (AUVW) is an ongoing project at NPS that allows rehearsal, real-time control, and replay of diverse autonomous unmanned vehicle (AUVs) missions. The AUVW increases the situational awareness of operators while allowing operators to learn valuable insights in a robots performance before, during, and after a mission. This thesis examines a variety of strategic authoritative plans for autonomous vehicles to determine functional mission requirements that autonomous ... |
|
| An Analysis of Learning Algorithms in Complex Stochastic Environments |
JUN 2007 |
65 pages |
| Authors:
Kristopher D. Poor; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| As the military continues to expand its use of intelligent agents in a variety of operational aspects, event prediction and learning algorithms are becoming more and more important. In this paper, we conduct a detailed analysis of two such algorithms: Variable Order Markov and Look-Up Table models. Each model employs different parameters for prediction and this study attempts to determine which model is more accurate in its prediction and why. ... |
|
| Rapid Prototyping of Robotic Systems |
JUN 2007 |
251 pages |
| Authors:
William J. Smuda; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF COMPUTER SCIENCE
|
| This effort describes a systems engineering approach to the design and implementation of software for prototyping robotic systems. Developing networked robotic systems of diverse physical assets is a continuing challenge to developers. Problems often multiply when adding new hardware/software artifacts or when reconfiguring existing systems. This work describes a method to create model-based, graphical domain-specific languages. Domain-specific languages use terms understandable to domain engineers as well as abstract software engineering ... |
|
| Sensor Failure Detection through Introspection |
JUN 2007 |
57 pages |
| Authors:
Jeremy Smeltz; Andrew Valerius; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The advancement of robot technology holds many opportunities for military applications. One area of research being done is simultaneous localization and mapping (SLAM). SLAM uses a robot's sensors to generate a map of the area while maintaining its current position within that map. SLAM research is built upon the assumption that all of the sensors are working correctly. Since field conditions are likely to cause erratic sensor function due to ... |
|
| Modeling and Implementation of PID Control for Autonomous Robots |
JUN 2007 |
73 pages |
| Authors:
Todd A. Williamson; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| PID control is optimized here in order to control the course of a small autonomous robot for military applications. A Visual Basic program was written to model the robot response to the controller and provide a method of optimization. The computer model is based on empirical data gathered through testing. Controller theory, robot mechanics, and hardware implementation are all discussed as they relate to the ability of the robot to ... |
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| Information Fusion and Aggregation for Cooperative Systems |
29-May-2007 |
49 pages |
| Authors:
Ronald R Yager; IONA COLL NEW ROCHELLE NY
|
| This is the final report for the work on information and aggregation for cooperative systems. We describe the objective of the work and the major accomplishments of this research. |
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| Simulation Based Acquisition Revisited |
17-May-2007 |
16 pages |
| Authors:
Michael McGrath; DEPUTY ASSISTANT SECRETARY FOR RESEARCH DEVELOPMENT/TEST AND EVALUATION WASHINGTON DC
|
| The briefing starts with review of an earlier concept of a DoD simulation-based procurement system that would allow extensive re-use within phases and across acquisition programs; it is a vision DoD has yet to realize. It looks then at barriers to implementation of such a system. The briefing asks and answers the question, Where does simulation based acquisition make sense? |
|
| Overview of Army Robotic Convey Technology Programs - Robobusiness 2007 |
15 MAY 2007 |
20 pages |
| Authors:
Justin Teems; TACOM RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
| DoD Logistics and Convoy Challenges: Effectively utilize existing automation to enhance soldier performance/reduce threat exposure, increase OPTEMPO while conducting the 3Ds: Dull, Dirty, or Dangerous. |
|
| Making Network Intrusion Detection Work With IPsec |
11 MAY 2007 |
|
| Authors:
C. D. McLain; A. Studer; R. P. Lippmann; MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB
|
| Network-based intrusion detection systems (NIDSs) are one component of a comprehensive network security solution. The use of IPsec, which encrypts network traffic, renders network intrusion detection virtually useless unless traffic is decrypted at network gateways. One alternative to NIDSs, host-based intrusion detection systems (HIDSs), provides some of the functionality of NIDSs but with limitations. HIDSs cannot perform a network-wide analysis and can be subverted if a host is compromised. We ... |
|
| Exploring Dimensionality Reduction for Text Mining |
04 MAY 2007 |
119 pages |
| Authors:
David G. Underhill; NAVAL ACADEMY ANNAPOLIS MD
|
| Text mining is the extraction of important information from a collection of textual data sources. For instance, text mining can be used to discover related concepts or to categorize previously unseen documents. In this age of information overload, text mining applications can potentially yield tremendous benefits to both individuals and organizations. However, the effectiveness of text mining is limited by the large volume of textual data, as well as its ... |
|
| Investigation of Three-Group Classifiers to Fully Automate Detection and Classification of Breast Lesions in an Intelligent CAD Mammography Workstation |
01 MAY 2007 |
97 pages |
| Authors:
Darrin C. Edwards; Charles E. Metz; Maryellen L. Giger; CHICAGO UNIV IL
|
| Our goal is to develop a fully automated classification scheme for computer-aided diagnosis in mammography. Our proposed scheme would classify computer detections into three groups: malignant lesions, benign lesions, and false-positive computer detections. We proved that the area under the ROC curve (AUC) is not useful in classification tasks with three or more groups, and showed that the three decision boundary lines used by the three-group ideal observer are intricately ... |
|
| Super Resolution Imaging Applied to Scientific Images |
01 MAY 2007 |
40 pages |
| Authors:
Subhasis Chaudhuri; INDIAN INST OF TECH BOMBAY DEPT OF ELECTRICAL ENGINEERING
|
| Super-resolution refers to the process of producing a high spatial resolution image than what is afforded by the physical sensor through post processing means. It includes up sampling the image, thereby increasing the maximum spatial frequency, and removing degradations that arise during the image capture, viz., aliasing and blurring. Various methods have been explored for super resolution of material surface images as well as other images in the report. Based ... |
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| Tandem Learning: A Learning Framework for Document Categorization |
MAY 2007 |
|
| Authors:
Hema Raghavan; MASSACHUSETTS UNIV AMHERST DEPT OF COMPUTER SCIENCE
|
| Supervised machine learning techniques rely on the availability of ample training data in the form of labeled instances. However, in text, users can have a strong intuition about the relevance of features, that is, words that are indicative of a topic. In this work we show that user prior knowledge on features is useful for text classification, a domain with many irrelevant and redundant features. The benefit of feature selection ... |
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| An Integrated Architecture for Grounded Intelligence in Its Development, Experimental, Environmental, and Social Context |
MAY 2007 |
25 pages |
| Authors:
Cynthia Breazeal; Larry Barsalou; Linda Smith; MASSACHUSETTS INST OF TECH CAMBRIDGE MEDIA LAB
|
| This final report describes a novel biologically-inspired cognitive architecture. The systems level architecture described in this report was inspired by Simmons and Barsalou (2003), with psychologically-inspired additions proposed by Breazeal et al (2005), augmented by key insights from developmental psychology (Smith, 2005). A cognitive agent will have multiple modality-specific systems, including sensory systems (e.g., vision, audition, touch), a motor system, an emotional system, and a cognitive system. As a system ... |
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| An Open Strategy for the Acquisition of Models and Simulations |
May-2007 |
22 pages |
| Authors:
Rudolph P Darken; NAVAL POSTGRADUATE SCHOOL MONTEREY CA MODELING VIRTUAL ENVIRONMENTS AND SIMULATION (MOVES)
|
| This briefing discusses the acquisition of simulation itself. Estimates of DoD M&S acquisition expenditures range from $9B to $15B annually. The brief recommends the adoption (or full consideration) of open source software (OSS) in DoD software acquisition and discusses the implications. |
|
| Source Camera Identification and Blind Tamper Detections for Images |
24 APR 2007 |
72 pages |
| Authors:
Nasir Memon; Husrev T. Sencar; POLYTECHNIC UNIV BROOKLYN NY
|
| Digital images can now be easily created, altered, and manipulated with no obvious traces of having been subjected to any of these operations. In this project, we have developed methodologies to verify the authenticity and integrity of digital images in an automatic manner. The results of our project have important implications with regard to ensuring credibility of digital images, especially when it comes to legal photographic evidence. Our proposed techniques ... |
|
| Intelligent Data Fusion for Wide-Area Assessment of UXO Contamination. SERDP Project MM-1510. 2006 Annual Report |
20 APR 2007 |
69 pages |
| Authors:
Susan L. Rose-Pehrsson; Kevin Johnson; Christian Minor; Verner Guthrie; NAVY TECHNOLOGY CENTER FOR SAFETY AND SURVIVABILITY WASHINGTON DC
|
| Intelligent data fusion techniques are being developed and optimized for use in enhancing wide-area assessment UXO remediation efforts. A data fusion framework will be created to provide a cohesive data management and decision-making utility that will capture all available data and more efficiently direct the expenditure of time, labor, and resources. The objectives of the first year are to determine the feasibility of feature selection methods for data fusion. The ... |
|
| FCS Technology Insertion and Transition |
18 APR 2007 |
15 pages |
| Authors:
Paul Rogers; TACOM RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
| Briefing on RDECOM S&T supporting Future Combat Systems. Topics include programs related to Ground Vehicle Power and Mobility, Survivability (Armor and KE APS) and Intelligent Systems (Robotic Vehicles, Water from Air). |
|
| Establishment of a Center for Defense Robotics |
06 APR 2007 |
9 pages |
| Authors:
Jim Overholt; David Thomas; TACOM RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
| This paper presents an overview of the newly formed Joint Center for Unmanned Ground Vehicles (JC-UGV) located at the Army's Detroit Arsenal in Warren, Michigan. The center will provide a focus to ground vehicle robotics by bringing together research and development as well as acquisition and sustainment to manage the life cycle of defense robotic systems. The central mechanism the center will use to bring together all of these aspect ... |
|
| Gigabytes to Bytes: Automated Denoising and Feature Extraction as Applied to the Analysis of HIV Architecture and Variability Using Electron Tomography |
01-Apr-2007 |
5 pages |
| Authors:
Adam Bennett; Rajesh Narasimha; Daniel Zabransky; Rachid Sougrat; Steven McLaughlin; Sriram Subramanian; NATIONAL CANCER INST BETHESDA MD
|
| Advances in automated data acquisition in electron tomography have led to an explosion in the amount of data that can be obtained about the spatial architecture of a variety of biologically and medically relevant objects with sizes in the "nano" range of 10-1000mm. The development of methods to analyze the vast amounts of information contained in these tomograms is a major challenge since the electron tomograms are intrinsically noisy. A ... |
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| A Survey of Statistical Machine Translation |
APR 2007 |
51 pages |
| Authors:
Adam Lopez; MARYLAND UNIV COLLEGE PARK DEPT OF COMPUTER SCIENCE
|
| Statistical machine translation (SMT) treats the translation of natural language as a machine learning problem. By examining many samples of human-produced translation, SMT algorithms automatically learn how to translate. SMT has made tremendous strides in less than two decades, and many popular techniques have only emerged within the last few years. This survey presents a tutorial overview of state-of-the-art SMT at the beginning of 2007. We begin with the context ... |
|
| Image Reconstruction Based Modeling of 3D Textile Composite (Postprint) |
APR 2007 |
22 pages |
| Authors:
Eric Zhou; David Mollenhauer; Endel Iarve; DAYTON UNIV OH RESEARCH INST
|
| Innovative weaving and braiding processes open up a new opportunity for making 3-D textile composites that give significantly damage-tolerant structural response with design flexibility for durable joints, near-net shape processing, etc. To fully understand the mechanical behavior of 3-D textile composites, it is essential to perform analyses to predict effective material properties and damage initiation and growth. In this paper we present a new approach to generating 3-D textile composite ... |
|
| Adaptive Distributed Intelligent Control Architecture for Future Propulsion Systems (Preprint) |
APR 2007 |
51 pages |
| Authors:
Alireza R. Behbahani; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH PROPULSION DIRECTORATE
|
| Adaptive Distributed Control System (ADCS) architectures have been developing rapidly in all fields to provide for optimal control, prognosis and safety-critical systems. Concepts such as controller decentralization and "smart" sensor/actuators have been studied by both government agencies and industry. Distributed control is potentially an enabling technology for advanced intelligent propulsion system concepts and is one of the few control approaches that is able to provide improved component and control system ... |
|
| Applications of Stochastic Analyses for Collaborative Learning and Cognitive Assessment |
APR 2007 |
|
| Authors:
Amy Soller; Ron Stevens; INSTITUTE FOR DEFENSE ANALYSES ALEXANDRIA VA
|
| This paper presents a basic introduction to some popular stochastic analysis methods from an unbiased disciplinary perspective. Examples ranging from fields as diverse as defense analysis, cognitive science, and instruction are illustrated throughout to demonstrate the variety of applications that benefit from such stochastic analysis methods and models. Two applications of longitudinal stochastic analysis methods to collaborative and cognitive training environments are discussed in detail. The first application applies a ... |
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| All Source Adaptive Fusion for Aided Navigation in Non-GPS Environment |
APR 2007 |
|
| Authors:
Timothy J. Klausutis; Ric Wehling; Matthew Lames; Omar Aboutalib; Bruce Awalt; Alex Fund; Bea Thai; Jeremy Leibs; NORTHROP GRUMMAN CORP EL SEGUNDO CA INTEGRATED SYSTEMS
|
| An innovative approach for navigation in non-GPS environment is presented based on all source adaptive fusion of any available information encompassing passive imaging data, digital elevation terrain data, IMU/GPS, altimeters, and star tracker. The approach provides continuous navigation through non-GPS environment and yields an improved navigation in the presence of GPS. The approach also provides reduced target location error and moving target indication. |
|
| Sonar 3 VMSA Federate: User Guide and Technical Description |
APR 2007 |
|
| Authors:
Allan Gillis; DEFENCE RESEARCH AND DEVELOPMENT ATLANTIC DARTMOUTH (CANADA)
|
| This federate provides a medium fidelity sonar model for Virtual Maritime Systems Architecture (VMSA) high level architecture (HLA) simulations. The model best represents towed array systems, but can be configured to model flank arrays as well. The Sonar model is coupled with an auto-detector/signal follower that creates VMSA Sonar tracks without an operator. While the federate is written in Java, the signal follower is provided only as a compiled Windows ... |
|
| Smart Systems for Logistics Command and Control (SSLC2) Spiral Three |
APR 2007 |
103 pages |
| Authors:
Elizabeth Matthews; Ron Cagle; Doug Saintignon; Brian Baumbarger; Scott Johnson; Jennie J. Gallimore; MACAULAY-BROWN INC DAYTON OH
|
| Smart Systems for Logistics Command and Control (SSLC2) is an Air Force Research Laboratory Logistics Readiness Branch (AFRL/RHAL) Warfighter Readiness Research Division program to research, develop and apply technologies to collect the critical information required to effectively manage logistics resources in support of combat operations. SSLC2 developed recommendations and requirements to transition concepts to existing Air Force systems. The SSLC2 program was divided into three spirals. This report focuses on ... |
|
| How the Air Force Should Stay Engaged in Computer Vision Technology Development |
Apr-2007 |
44 pages |
| Authors:
Mark B Skouson; AIR UNIV MAXWELL AFB AL
|
| The Air Force must continue to play an active role in shaping future computer vision technologies by investing in sensors networks, data fusion, technology transition, and artificial intelligence. A survey shows that while that computer vision technology appears to be progressing in general agreement with Air Force needs for the 2030 timeframe, a few gaps exist that the Air Force must address. The survey combines the judgment of 13 experts ... |
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Cybernetics
