| Employing a Secure Virtual Private Network (VPN) Infrastructure as a Global Command and Control Gateway to Dynamically Connect and Disconnect Diverse Forces an a Task-Force-By-Task-Force Basis |
Sep-2009 |
102 pages |
| Authors:
Patrick N Kilcrease; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF INFORMATION SCIENCES
|
 | GHOSTNet is a secure and anonymous Virtual Private Network (VPN) service. Coupling Ethernet tunneling and proxy services to provide users safe and anonymous Internet access, GHOSTNet utilizes TLS (SSL) protocol with AES-256 encryption to secure the network along with PKI certificates and HMAC protection from replay attacks and UDP flooding. This thesis will be a system level test and evaluation of the GHOSTNet infrastructure. The primary objective is to determine ... |
|
| Cooperation in Social Networks: Communication, Trust, and Selflessness |
Dec-2008 |
9 pages |
| Authors:
David C Arney; Elisha Peterson; ARMY RESEARCH OFFICE RESEARCH TRIANGLE PARK NC
|
| The Army's myriad social networks connect not only humans and soldiers, but also machines, computers, and robots. And most of the social/biological/physical/informational connections in these networks are in the form of cooperation - entities working together to achieve a common goal. So how does this complex web of relationships, collaborations, and communities of diverse entities work? This paper introduces a new framework in which measures of cooperation can be precisely ... |
|
| Application of Optimization Techniques to Spectrally Modulated, Spectrally Encoded Waveform Design |
01-Sep-2008 |
104 pages |
| Authors:
Todd W Beard; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| A design process is demonstrated for a coexistent scenario containing Spectrally Modulated, Spectrally Encoded (SMSE) and Direct Sequence Spread Spectrum (DSSS) signals. Coexistent SMSE-DSSS designs are addressed under both perfect and imperfect DSSS code tracking conditions using a noncoherent delay-lock loop (DLL). Under both conditions, the number of SMSE subcarriers and subcarrier spacing are the optimization variables of interest. For perfect DLL code tracking conditions, the GA and RSM optimization ... |
|
| Improving Automated Lexical and Discourse Analysis of Online Chat Dialog |
SEP 2007 |
127 pages |
| Authors:
Eric N. Forsyth; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| One of the goals of natural language processing (NLP) systems is determining the meaning of what is being transmitted. Although much work has been accomplished in traditional written and spoken language domains, little has been performed in the newer computer-mediated communication domain enabled by the Internet, to include text-based chat. This is due in part to the fact that there are no annotated chat corpora available to the broader research ... |
|
| Wavelet Approach to Data Analysis, Manipulation, Compression, and Communication |
07 AUG 2007 |
16 pages |
| Authors:
Charles K. Chui; MISSOURI UNIV-ST LOUIS
|
| The main objective of our research program over the past three-year period is three-fold: firstly, mathematical theories and methods, as well as construction of basis functions, for multi-level approximation and analysis, with emphasis on scattered data interpolation and representation, were developed; secondly, based on minimum-energy criteria, new data processing tools, particularly variational algorithms and optimal wavelet thresholding methods, with applications to image restoration, were introduced; and finally, these developments were ... |
|
| Compile-Time Schedulability Analysis of Communicating Concurrent Programs |
28 JUN 2006 |
112 pages |
| Authors:
Cong Liu; CALIFORNIA UNIV BERKELEY DEPT OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCE
|
| The use of concurrent models has become a necessity in embedded system design. This trend is driven by the growing complexity and inherent multitasking of embedded systems. Describing a system as a set of concurrently executed, relatively simple subtasks is more natural than using a single, complicated task. Embedded systems, however, have limited resources. They often have a few processors. This implies that several software subtasks "programs" have to share ... |
|
| Impact of Social Presence on Focus Group Success |
JUN 2006 |
93 pages |
| Authors:
Murrey Olmsted; Christina Underhill; NAVY PERSONNEL RESEARCH STUDIES AND TECHNOLOGY MILLINGTON TN
|
| As computers and alternatives of communication become more widespread, researchers are beginning to turn to new approaches to conduct data collection. A frequently used technique for collecting preliminary data or follow-up research is focus groups. The present study compared two types of computer-based focus groups with traditional face-to-face focus groups. The two types of computer-based focus groups utilized a chat room environment and laptop computers to facilitate the discussions. The ... |
|
| An Assessment of Joint Chat Requirements From Current Usage Patterns |
JUN 2006 |
119 pages |
| Authors:
Bryan A. Eovito; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| This research assesses the impact of synchronous (real-time), text-based chat on military command and control (C2) processes. Chat use among the services, particularly among joint forces, has evolved in ad hoc fashion to fill gaps in currently fielded C2 systems. This growth-by-improvisation inhibits clear definition of the underlying requirements: precisely what C2 deficiencies are being addressed by text-based chat tools? Or, from a bottom-up perspective: what capabilities do text-based chat ... |
|
| Defining Cyberspace as a United States Air Force Mission |
JUN 2006 |
55 pages |
| Authors:
Pamela L. Woolley; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| The purpose of this research was to provide a common framework and language for the definition of cyberspace. Specifically, this project looked into three key areas: (1) What is cyberspace? (2) Why is cyberspace so unique and important? and (3) What are the U.S. Air Force's cyberspace capabilities and mission areas? An extensive literature review indicates that the fundamental problem of defining cyberspace evolved as cyberspace evolved within each community ... |
|
| User's Epistle on Text Chat Tool Acquisition |
JUN 2006 |
9 pages |
| Authors:
Jr Simpson Marvin L.; AIR FORCE OPERATIONAL TEST AND EVALUATION CENTER LANGLEY AFB VA DETACHMENT 3OL-LV
|
| Just as leaders of the world wars of the 20th century exploited advances in the industrial revolution, military leaders today exploit the information revolution. Despite the hindrance of current military command, control and communications (C3) to adhere to a classic Napoleonic hierarchy, information revolution values strategically enable principles like Net-Centric Warfare and challenge the status quo. With a revolutionary technology like text chat, a monopoly of naysayers produce a litany ... |
|
| Finding Errors Automatically in Semantically Tagged Dialogues |
2006 |
6 pages |
| Authors:
John Aberdeen; Christine Doran; Laurie Damianos; Samuel Bayer; Lynette Hirschman; MITRE CORP BEDFORD MA
|
| We describe a novel method for detecting errors in task-based human-computer (HC) dialogues by automatically deriving them from semantic tags. We examined 27 HC dialogues from the DARPA Communicator air travel domain, comparing user inputs to system responses to look for slot value discrepancies, both automatically and manually. For the automatic method, we labeled the dialogues with semantic tags corresponding to "slots" that would be filled in "frames" in the ... |
|
| A Low-Cost, Man-Portable Free-Space Optics Communication Device for Ethernet Applications |
DEC 2005 |
85 pages |
| Authors:
Mohammad H. Alrasheedi; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF PHYSICS
|
| The requirements of modern war have imposed the need for a low-cost, small-size, high-speed, large bandwidth, deployable Free-Space Optics (FSO) system that could be used to provide connectivity between major command centers and their subordinate units. Commercially available FSO systems are bulky and expensive. A preliminary low-cost FSO system was designed, based on commercial off the shelf (COTS) components, and tested over a 5 ft. distance in a previous thesis ... |
|
| Mathematical Models by Quality of Service Driven Routing in Networks |
07 SEP 2005 |
7 pages |
| Authors:
Erol Gelenbe; UNIVERSITY OF CENTRAL FLORIDA ORLANDO DEPT OF COMPUTER SCIENCE
|
| Very large networks with varying topologies, unreliable components, and highly time varying traffic, are not amenable to traditional techniques of analysis based on traffic engineering and simulations. Traffic flows in such networks will traverse a number of hops which cannot be determined in advance and encounter traffic conditions that are also unknown. During the flow of a particular traffic stream, the network topology may change (e.g. when wireless links are ... |
|
| AIDA: Adaptive Application Independent Data Aggregation in Wireless Sensor Networks |
07 SEP 2005 |
24 pages |
| Authors:
Tian He; Brian M. Blum; John A. Stankovic; Tarek Abdelzaher; VIRGINIA UNIV CHARLOTTESVILLE DEPT OF COMPUTER SCIENCE
|
| Sensor networks, a novel paradigm in distributed wireless communication technology, have been proposed for use in various applications including military surveillance and environmental monitoring. These systems could deploy heterogeneous collections of sensors capable of observing and reporting on various dynamic properties of their surroundings in a time sensitive manner. Such systems suffer bandwidth, energy, and throughput constraints that limit the quantity of information transferred from end to end. These factors ... |
|
| Communication Strategies for Shared-Bus Embedded Multiprocessors |
SEP 2005 |
5 pages |
| Authors:
Neal K. Bambha; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD
|
| This paper explores the problem of efficiently ordering interprocessor communication operations in both statically and dynamically-scheduled multiprocessors for iterative dataflow graphs with probabilistic execution times. In most digital signal processing applications, the throughput of the system is significantly affected by communication costs. We explicitly model these costs within an effective graph-theoretic analysis framework. We show that ordered transaction schedules can significantly outperform both self-timed schedules and dynamic schedules for moderate ... |
|
| Interactivity Communication and Trust: Further Studies of Leadership in the Electronic Age |
MAR 2005 |
86 pages |
| Authors:
Judee K. Burgoon; Suzanne Weisband; Joseph Bonito; ARIZONA UNIV TUCSON CENTER FOR THE MANAGEMENT OF INFORMATION
|
| Successful leadership and team performance are built on a foundation of trust and effective communication between and among leaders and team members. A broad range of new communication technologies, now ubiquitous in today's military, allow leaders and their teams to work remotely from one another. Our current research program, consisting of 11 laboratory and field experiments, seeks to answer the question of how these technologies affect leaders' ability to foster ... |
|
| Why Latency Lags Bandwidth, and What it Means to Computing |
OCT 2004 |
26 pages |
| Authors:
David Patterson; CALIFORNIA UNIV BERKELEY
|
| Over last 20 to 25 years, for 4 disparate technologies, Latency Lags Bandwidth: * Bandwidth improved 120x to 2200x * But latency improved only 4x to 20x * Talk explains why and how to cope. |
|
| Utilization of Web Services to Improve Communication of Operational Information |
SEP 2004 |
133 pages |
| Authors:
David Lowery; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF COMPUTER SCIENCE
|
| Currently under development, the Global Information Grid (GIG) enterprise Services (ES) is a suite of capabilities intended to provide improved user access to mission-critical data via Web-based and network technologies. Some of the problems of implementing such capabilities include non-uniform data formats, incompatible run-time environments and nonstandard proprietary applications, all of which block operational interoperability. Web services are specifically designed to address the interoperability challenges of a service- oriented architecture ... |
|
| Integrating Effects-Based and Attrition-Based Modeling |
JUN 2004 |
49 pages |
| Authors:
Edward A. DeGregorio; Raymond A. Janssen; Lee W. Wagenhals; Richard H. Messier; RITE-SOLUTIONS MIDDLETOWN RI
|
| The concept of Effects-Based Operations (EBO), enabled by Network-Centric Warfare (NCW), is developing rapidly as diplomats and war planners move to confront global threats in the new millennium. Modeling the NCW EBO process attempts to codify the belief structure and reasoning of adversaries and their cause-effect relationships with US and coalition actions, including mitigating undesired effects. A systematic EBO approach requires modeling, simulation, and evaluation tools to quantify the expected ... |
|
| The Use of Massive Multiplayer Online Games to Evaluate C4I Systems |
MAR 2004 |
75 pages |
| Authors:
Kambra Juve; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| In the past few years, Massive Multiplayer Online Games (MMOG) have gained in popularity in the gaming industry, the public and the Department of Defense Improvements to computer technology and the increased data transfer rate over networks have caused the potential applications for networked environments to blossom MMOGs are a product of these improvements, as technological advancements have made it possible for the masses to gain access to virtual environments ... |
|
| Architecture and Prototype of an Ambient Computational Environment |
FEB 2004 |
14 pages |
| Authors:
Gary J. Minden; Joseph B. Evans; Arvin Agah; Jeremiah W. James; Leon Searl; KANSAS UNIV CENTER FOR RESEARCH INC LAWRENCE
|
| This Final Report describes the performer's effort of the design, development and initial prototype implementation of an Ambient Computational Environment (ACE). The concept began with the idea that computation resources, in the broadest sense, are readily available in our offices, conference rooms, auditoriums, and hallways. Users co-opt, with authorization, the computational resources within their proximate area. Users access computational services that are long-lived and extremely robust. |
|
| Scalable Advanced Network Services Based on Coordinated Active Components |
FEB 2004 |
36 pages |
| Authors:
Peter Steenkiste; Srini Seshan; Hui Zhang; CARNEGIE-MELLON UNIV PITTSBURGH PA
|
| The lnternet has evolved from a simple best-effort communication platform to an infrastructure that delivers a wide range of services to end users. However, deploying services that are both scalable and provide rich functionality remains a major challenge. The CMU Libra project developed a set of technologies that allows new services to be defined through composition of service components. Service components either take the form of highly scalable communication layers ... |
|
| RENDEZVOUS: Self-Organizing Services in an Active Network |
FEB 2004 |
19 pages |
| Authors:
David J. Wetherall; Thomas E. Anderson; UNIV OF WASHINGTON SEATTLE DEPT OF COMPUTER SCIENCE AND ENGINEERING
|
| We propose to explore a rendezvous model that has three characteristics: self-organization, heterogeneity, and administrator for friendliness. Not only do we believe that active network techniques have much to offer the overlay, proxy and interposition models that are prevalent in the Internet, but for the most part previous active networks research has not explored models with these characteristics. Our approach builds on our earlier experience with active networks, and specifically ... |
|
| Robust Agent-Based Systems Incorporating Teams of Communicating Agents |
FEB 2004 |
29 pages |
| Authors:
Philip R. Cohen; OREGON HEALTH AND SCIENCE UNIV BEAVERTON CENTER FOR HUMAN COMPUTER COMMUNICATION
|
| This report describes OGI's contribution to agent based systems design and prototyping. The project had two major thrusts: I) the development of the Adaptive Agent Architecture (A3), and 2) the development of a second generation agent communication language (AgentTalk). The A3 architecture supports human participation as agents, dynamic formation of agent teams, reorganization of teams based on network loads, and offers libraries for legacy code to be able to participate ... |
|
| Efficient Hierarchic Management for Reconfiguration of Networked Information Systems |
2004 |
11 pages |
| Authors:
Jonathan C. Rowanhill; Philip E. Varner; John C. Knight; VIRGINIA UNIV CHARLOTTESVILLE DEPT OF COMPUTER SCIENCE
|
| The management of modern distributed systems is complicated by scale and dynamics. Scalable, decoupled communication establishes flexible, loosely coupled component relationships, and these relationships help meet the present demands on management. However, traditional decoupled addressing mechanisms tend to focus the addressing on only one of the parties involved in communication while, in general, a communication relationship involves a sender, communicated content, and receivers. The state of all three are simultaneously ... |
|
| Challenges in Virtual Collaboration. Videoconferencing, Audioconferencing, and Computer-Mediated Communications |
2004 |
|
| Authors:
Lynne Wainfan; Paul K. Davis; RAND CORP SANTA MONICA CA
|
 | This report was developed as part of a larger project on aids to high-level national-security decision making. It discusses the effects of the medium of collaboration (face-to-face, videoconferencing, audio-conferencing, or computer-mediated conferencing) on group processes and outcomes. Virtual collaborations are collaborations in which the people working together are interdependent in their tasks, share responsibility for outcomes, are geographically dispersed, and rely on mediated, rather than face-to-face, communication to produce an ... |
|
| Parallel Matlab: The Next Generation |
23 SEP 2003 |
|
| Authors:
Jeremy Kepner; Nadya Travinin; MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB
|
| The true costs of high performance computing are currently dominated by software. Addressing these costs requires shifting to high productivity languages such as Matlab. The development of MatlabMPI (www.ll.mit.edu/ MatlabMPI) was an important first step that has brought parallel messaging capabilities to the Matlab environment, and is now widely used in the community. The ultimate goal is to move beyond basic messaging (and its inherent programming complexity) towards higher level ... |
|
| Robust Mobile Multimedia Communications |
15 JUL 2003 |
65 pages |
| Authors:
Lance C. Perez; Michael W. Hoffman; Khalid Sayood; NEBRASKA UNIV LINCOLN DEPT OF ELECTRICAL ENGINEERING
|
| This report describes the final results obtained on this project. We detail the technical contributions made under the support of this grant. The technical contributions are in the two focus areas: (1) Time-varying convolutional codes and their application to turbo codes. (2) Joint-source channel coding for multimedia applications. Results in the area of time-varying convolutional codes are discussed including the discovery of a new time-varying convolutional code that achieves the ... |
|
| User-Level QoS-Adaptive Resource Management in Server End-Systems |
MAY 2003 |
9 pages |
| Authors:
Tarek F. Abdelzaher; Kang G. Shin; Nina Bhatti; VIRGINIA UNIV CHARLOTTESVILLE DEPT OF COMPUTER SCIENCE
|
| Proliferation of QoS-sensitive client-server Internet applications such as high-quality audio, video-on-demand, e-commerce, and commercial web hosting has generated an impetus to provide performance guarantees. These applications require a guaranteed minimum amount of resources to operate acceptably to the users, thus calling for QoS-provisioning mechanisms. One good place to locate such mechanisms is in server communication subsystems. Server-side communication subsystems manage an increasing number of connection end-points, thus readily controlling important ... |
|
| Internet Protocol-Hybrid Opto-Electronic Ring Network (IP-HORNET): A novel Internet Protocol-Over-Wavelength Division Multiplexing (IP-Over-WDM) multiple-Access Metropolitan Area Network (MAN) |
APR 2003 |
322 pages |
| Authors:
Leonid G. Kazovsky; Ian White; Matt Rogge; Kapil Shrikhande; Erie Hu; STANFORD UNIV CA DEPT OF ELECTRICAL ENGINEERING
|
| After significant funding reduction this research program: pursued the design, implementation, and optimization of MAC protocols for variable sized IP packets; and experimentally investigated a laboratory model of a 2 fiber bi- directional path switched ring implementation of the HORNET architecture. The application arena for a IP-HORNET is the metropolitan area. |
|
| Training Effects on Judgment Accuracy in a Computer-Mediated Environment |
MAR 2003 |
84 pages |
| Authors:
Mark M. Lankowski; ARMY WAR COLL CARLISLE BARRACKS PA
|
| The United States Air Force (AF) has named Information Superiority the core competency "upon which all the other core competencies rely". In order to achieve Information Superiority, deceptive communication must be minimized. According to researchers, deception occurs when communicators control the information contained in their messages to convey a meaning that departs from the truth. This research draws on Biros, George, and Zmuds' (2002) deception research model to determine if ... |
|
| The Impact of Computer and Communications Technology on Recruiter Productivity and Quality of Life |
28 FEB 2003 |
60 pages |
| Authors:
Tanja F. Blackstone; Peter M. Williams; NAVY PERSONNEL RESEARCH STUDIES AND TECHNOLOGY MILLINGTON TN
|
| This research addresses examines the effectiveness of Recruiters when given high-tech tools and the cost effectiveness of providing high tech tools. In order to test the effect of high-tech tools on the behavior and productivity of recruiters, an experiment was designed and executed. A test group of recruiters was given a set of tools, which included state of the art laptop computers, computer projection equipment, communications and database software, Internet ... |
|
| Al Qaeda and the Internet: The Danger of 'Cyberplanning' |
01-Jan-2003 |
13 pages |
| Authors:
Timothy L Thomas; FOREIGN MILITARY STUDIES OFFICE (ARMY) FORT LEAVENWORTH KS
|
| One can say with some certainty, al Qaeda loves the Internet. When the latter first appeared, it was hailed as an integrator of cultures and a medium for businesses, consumers, and governments to communicate with one another. It appeared to offer unparalleled opportunities for the creation of a "global village." Today the Internet still offers that promise, but it also has proven in some respects to be a digital menace. ... |
|
| Foundations of Swarm Intelligence: From Principles to Practice |
2003 |
15 pages |
| Authors:
Mark Fleischer; MARYLAND UNIV COLLEGE PARK INST FOR SYSTEMS RESEARCH
|
| Swarm Intelligence (SI) is a relatively new paradigm being applied in a host of research settings to improve the management and control of large numbers of interacting entities such as communication, computer and sensor networks, satellite constellations and more. Attempts to take advantage of this paradigm and mimic the behavior of insect swarms however often lead to many different implementations of SI. The rather vague notions of what constitutes self-organized ... |
|
| A Branch-and-bound Algorithm for the Network Diversion Problem |
DEC 2002 |
|
| Authors:
Ozgur Erken; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| In the network diversion problem (NDP), we must find a minimum-weight set of edges in a directed graph G=(V,E) whose deletion forces all s-t communication to pass through one or more diversion edges in a diversion set E(D). We develop and test a specialized branch-and-hound algorithm for this NP- complete problem. The algorithm is based on partitioning the solution space with respect to edges in certain s-t cuts and yields ... |
|
| Business to Business Electronic Test Monitoring Information System |
11 SEP 2002 |
15 pages |
| Authors:
Robert C. Higgins; NAVAL UNDERSEA WARFARE CENTER NEWPORT DIV RI
|
| A system/method of establishing a two-way communication system between a testing/manufacturing site and a component vendor is disclosed. The system allows the test results related to a component failure to be immediately available to a vendor by allowing the vendor password protected access to a product database that contains information regarding the product being tested. The system automatically alerts the vendor associated with the defective component, and allows the vendor ... |
|
| Exploitation of Existing Voice Over Internet Protocol Technology for Department of the Navy Application |
SEP 2002 |
127 pages |
| Authors:
Henry M. Vegter Jr.; David T. Wallace; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| This thesis documents an investigation into the technology of Voice over Internet Protocol (VoIP) VoIP promises to be a widely accepted technology in the future, The issues of efficient use of bandwidth over network choke points, cost savings gained from a common data and voice infrastructure, reduced cost associated with toll calls and the merger of the telephone with the desktop will keep adoption of this technology on the path ... |
|
| Security Guide for Interconnecting Information Technology Systems: Recommendations of the National Institute of Standards and Technology |
AUG 2002 |
52 pages |
| Authors:
Tim Grance; Joan Hash; Steven Peck; Jonathan Smith; Karen Korow- Diks; NATIONAL INST OF STANDARDS AND TECHNOLOGY GAITHERSBURG MD
|
| This document provides guidance for planning, establishing, maintaining, and terminating interconnections between information technology (IT) systems that are owned and operated by different organizations, including organizations within a single federal agency. |
|
| Heterogeneous Software System Interoperability Through Computer-Aided Resolution of Modeling Differences |
JUN 2002 |
306 pages |
| Authors:
Paul E. Young; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Meeting future system requirements by integrating existing stand- alone systems is attracting renewed interest. Computer communications advances, functional similarities in related systems, and enhanced information description mechanisms suggest that improved capabilities may be possible; but full realization of this potential can only be achieved if stand-alone systems are fully intewperable. Interoperability among independently developed heterogeneous systems is difficult to achieve: systems often have different architectures, different hardware plattons, different operating ... |
|
| The USA PATRIOT Act: A Sketch |
18 APR 2002 |
|
| Authors:
Charles Doyle; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
|
| Congress passed the USA PATRIOT Act in response to the terrorist attacks of September 11, 2001. The Act gives federal officials greater authority to track and intercept communications, both for law enforcement and foreign intelligence gathering purposes. It vests the Secretary of the Treasury with regulatory powers to combat corruption of U.S. financial institutions for foreign money laundering purposes. It seeks to further close U.S. borders to foreign terrorists and ... |
|
| Integrating Modern Staff Communications into an Effective Staff Action Model |
09 APR 2002 |
28 pages |
| Authors:
Frederick J. Gargiulo; ARMY WAR COLL CARLISLE BARRACKS PA
|
| Electronic mail, or email, is a relatively new method of communication that has joined the telephone and letter as one of the top three preferred methods of communication in the corporate, defense and private sectors since the Internet has reached market dominance. Although there are great advantages and efficiencies made available by the proliferation of email, its ease of use and capability of nearly instantaneous global contact allows users to ... |
|
| Occupational Analysis Products: Communications-Computer Systems Control - AFSC 3C2X1 (CD-ROM) |
APR 2002 |
|
| Authors:
Robert Boerstler; AIR FORCE OCCUPATIONAL MEASUREMENT SQUADRON RANDOLPH AFB TX
|
| ELECTRONIC FILE CHARACTERISTICS: 16 files; text and hypertext; HTML and MS Word .DOC. PHYSICAL DESCRIPTION: 1 computer laser optical disc (CD-ROM); 4 3/4 in.; 21 MB. SYSTEMS DETAIL NOTE: IBM-clone PC-compatible. ABSTRACT: This CD contains the products of the Occupational Analysis for AFSC 3C2X1, completed April 2002. The OSR is a summary of the analyses that include job descriptions of work performed within the AFSC, Duty AFSC Analysis, Training Analysis, ... |
|
| Graphical User Interface Tool Kit for Path-Based Network Policy Language |
MAR 2002 |
|
| Authors:
Tufan Ekin; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The Path-based Policy Language (PPL) is a formal network policy language for constructing models of Internet service and access control. Seven changes have been made to the LEXER and YACC code of PPL. Five of the changes are related to the syntax of policy rules in PPL. Two of the changes are related to the semantics of the language. A graphical user interface tool kit for creating, validating, archiving and ... |
|
| Application of Spoken and Natural Language Technologies to Lotus Notes Based Messaging and Communication |
JAN 2002 |
|
| Authors:
Stephanie Lajoie; Oliver Carr; Michael Coleman; Ahmad Hashemi- Sakhtsari; DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION SALISBURY (AUSTRALIA) ELECTRONICS AND SURVEILLANCE RESEARCH
|
| Speech can potentially provide a natural, efficient and flexible means of user interaction with computers in a messaging and communication environment. This report presents a spoken language data entry and database query concept demonstrator. Firstly, the report discusses a technique for integrating a commercial large-vocabulary continuous speech recognizer with a Lotus Notes database user interface for data entry into Lotus Notes forms. Secondly, the report describes the integration of a ... |
|
| A Self-Correcting Neighbor Protocol for Mobile Ad-Hoc Wireless Networks |
2002 |
6 pages |
| Authors:
Marc Mosko; J. J. Garcia-Luna-Aceves; CALIFORNIA UNIV SANTA CRUZ
|
| Mobile wireless ad-hoc networks lack some basic abilities taken for granted in wired networks, such as the ability to know adjacent nodes. We present a neighbor discovery protocol, with particular application to broadcast flooding. The Neighbor Exchange Protocol (NXP) has two main improvements over simple periodic broadcast schemes: (1) it only sends Hello packets when necessary to maintain topology and (2) uses sequence numbers in redistributed information to aid in ... |
|
| Multicast Performance Analysis for High-Speed Torus Networks |
2002 |
11 pages |
| Authors:
S. Oral; A. George; FLORIDA UNIV GAINESVILLE DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| Overall efficiency of high-performance computing clusters not only relies on the computing power of the individual nodes, but also on the performance that the underlying network can provide to the computational application. Although modern high-performance networks, especially System Area Networks (SANs), have high unicast performance, they do not support multicast communication in hardware. This research experimentally evaluates the performance of various protocols for unicast-based and path-based multicast communication on high-speed ... |
|
| Variable-Data-Rate Voice Encoder for Voice Over Internet Protocol (VOIP) (CD-ROM) |
28 DEC 2001 |
|
| Authors:
George S. Kang; NAVAL RESEARCH LAB WASHINGTON DC
|
| ELECTRONIC FILE CHARACTERISTICS: 6 files; Adobe PDF document and QuickTime audio-video fiels (.MOV). PHYSICAL DESCRIPTION: 1 computer laser optical disc (CD-ROM); 4 3/4 in.; 3.34 MB. SYSTEMS DETAIL NOTE: IBM-clone PC-compatible; requires audio-video drivers. ABSTRACT: Over the years, all DOD voice terminals transmitted speech at a constant data rate. That was the era when each user was allotted a fixed amount of channel resources (e.g., bandwidth). Now, the age of ... |
|
| Network Application Server Using Extensible Mark-Up Language (XML) to Support Distributed Databases and 3D Environments |
DEC 2001 |
309 pages |
| Authors:
Clifton J. Williams; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Advances in computer communication technology and an increased awareness of how enhanced information access can lead to improved capabilities, are the driving forces behind the interest in the integration of current distributed systems and stand-alone systems. However, differences in hardware, software architectures, operating systems, host languages, and data representation have resulted in scores of stovepipe system architectures that are unable to interoperate prop cAy. This thesis contributes to the US ... |
|
| Can We Ever Build Survivable Systems from COTS Components? |
DEC 2001 |
|
| Authors:
Howard F. Lipson; Nancy R. Mead; Andrew P. Moore; CARNEGIE-MELLON UNIV PITTSBURGH PA SOFTWARE ENGINEERING INST
|
| Using commercial off-the-shelf (COTS) components to build large, complex systems has become the standard way that systems are designed and implemented by government and industry. Much of the literature on COTS-based systems concedes that such systems are not suitable for mission-critical applications. However, there is considerable evidence that COTS-based systems are being used in domains where significant economic damage and even loss of life are possible in the event of ... |
|
| A Parallel Multigrid Solver for Viscous Flows on Anisotropic Structured Grids |
OCT 2001 |
22 pages |
| Authors:
Manuel Prieto; Ruben S. Montero; Ignacio M. Llorente; UNIVERSIDAD COMPLUTENSE DE MADRID (SPAIN)
|
| This paper presents an efficient parallel multigrid solver for speeding up the computation of a 3-D model that treats the flow of a viscous fluid over a flat plate. The main interest of this simulation lies in exhibiting some basic difficulties that prevent optimal multigrid efficiencies from being achieved. As the computing platform, we have used Coral,aBeowulf-class system based on Intel Pentium processors and equipped with GigaNet cLAN and switched ... |
|
Reports by Keyword(s)
*COMPUTER COMMUNICATIONS
