| VoIP Softphones |
01-Apr-2008 |
5 pages |
| Authors:
David Premeaux; ARMY INFORMATION SYSTEMS ENGINEERING COMMAND FORT HUACHUCA AZ
|
 | Voice over Internet Protocol (VoIP) provides the user with an opportunity to combine the use of a telephone with a personal computer (PC) into what is known as a Softphone. A Softphone allows users to place and receive calls using a PC. This article covers what a Softphone is and its issues, such as quality of service and security, which affect Softphones. The Technical Integration Center (TIC) currently does not ... |
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| Anatomy of the ISDN's D-Channel Access Procedure |
26 JUN 91 |
7 pages |
| Authors:
Winfred Fong; ARMY INFORMATION SYSTEMS ENGINEERING COMMAND FORT HUACHUCA AZ
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| The ISDN D-Channel Access Procedure relies heavily on the Interframe Time Fill transmission, priority mechanism, and the D-Channel multi-point contention resolution scheme. This report presents an overview of the above issues and also illustrates certain pitfalls of this methodology.... ISDN, B- Channel, D-Channel, LAPD Protocol, Terminal equipment. |
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| Army Nonprogrammer System for Working Encyclopedia Requests. Phase 3B report |
12 APR 91 |
49 pages |
| Authors:
Karen Ryan; ARMY INFORMATION SYSTEMS ENGINEERING COMMAND FORT HUACHUCA AZ
|
| This report details the research efforts into the access of distributed heterogeneous databases through an encyclopedia facility. Specifically several data management tools have been prototyped and are described. Current capabilities include database schema registration, schema integration, graphical browser, query formulation and query processing. Two subschemas of the SAILS and SAACONS databases provided by the PM-ISM were implemented and used for system testing. A study on the security issues of integrating ... |
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| Application of Neural Networks for the Extraction & Characterization of Knowledge Contained in Databases |
26 MAR 91 |
84 pages |
| Authors:
William R. Caid; ARMY INFORMATION SYSTEMS ENGINEERING COMMAND FORT HUACHUCA AZ
|
| The ability to automatically discover relationships contained within data, quantify their strength, and present them graphically to the user for visualization is defined as Relationship Discovery . This capability was the major research effort during Phase I of this SBIR Project. The detection of relationships is a necessary precursor to the modeling step where the detected relationships are modeled using powerful neural network paradigm capable of capturing the nonlinear relationships ... |
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| Army Nonprogrammer System for Working Encyclopedia Requests. Phase 3A report |
JAN 91 |
397 pages |
| Authors:
ARMY INFORMATION SYSTEMS ENGINEERING COMMAND FORT HUACHUCA AZ
|
| The report discusses a set of data management tools and distributed query processing modules developed and/or enhanced during a 9 month effort, the third phase of a four phase effort. In Phases I and II of the answer program, we emphasized the development of data administration tools to aid in the process of creating and maintaining a heterogeneous distributed system. The schema integrator creates integrated schemas from individual schemas and ... |
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| A Distributed TDMA Rescheduling Procedure for Mobile Packet Radio Networks |
JAN 91 |
30 pages |
| Authors:
David S. Stevens; Mostafa H. Ammar; ARMY INFORMATION SYSTEMS ENGINEERING COMMAND FORT HUACHUCA AZ
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| Packet radio networks provide two features not present in a wire- based network - mobility and a broadcast channel. Time Division Multiple Access (TDMA) protocols provide packet radio networks with two features that facilitate efficient communications. First, they eliminate the possibility of collisions on the broadcast channel. Second, they allow for the spatial reuse of the radio channel bandwidth by permitting more than one node to transmit at once. However, ... |
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| Visual Knowledge in Tactical Planning: Preliminary Knowledge Acquisition Phase 1 Technical Report |
05 APR 90 |
20 pages |
| Authors:
J. S. Lancaster; ARMY INFORMATION SYSTEMS ENGINEERING COMMAND FORT HUACHUCA AZ
|
| Over the past twenty years, much has been learned about the structure and use of human knowledge and the potential values of computer representation and manipulation of knowledge and reasoning for a variety of problem solving purposes. However, very little of this work has concerned itself with those components of human knowledge that are not easily expressed in verbal terms, for reasons both of difficulty in assessing the knowledge involved ... |
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| Army Nonprogrammer System for Working Encyclopedia Requests. Tools Manual |
15 DEC 89 |
32 pages |
| Authors:
Karen Ryan; Cho-Li Hou; Datta Shetti; ARMY INFORMATION SYSTEMS ENGINEERING COMMAND FORT HUACHUCA AZ
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| This report describes the current results of research to develop a set of data management tools for use by database planners, developers, administrators, and users within the Army. Specifically, several data management tools that have been prototyped to date are described to include database registration, schema integration, browsing, an AI based standard data element naming tool, and an Information Resource Dictionary System (IRDS) repository. This toolset has been integrated under ... |
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