NASA Scientific and Technical Aerospace Reports

allows the user to specify a context for his or her query, and then uses the context to help the user build a query by example.
DTIC
Information Retrieval; Internets; Shoes
20060001885 Purdue Univ., West Lafayette, IN USA
CUPIDS: Increasing Information System Security Through the Use of Dedicated Co-Processing
Williams, Paul D.; Aug. 1, 2005; 126 pp.; In English; Original contains color illustrations
Report No.(s): AD-A440440; No Copyright; Avail.: Defense Technical Information Center (DTIC)
Most past and present intrusion detection systems architectures assume a uniprocessor environment or do not explicitly
make use of multiple processors when they exist. Yet, especially in the server world, multiple processor machines are
commonplace; and with the advent of technologies such as Intel and AMD’s multi-core or Hyperthreading technologies,
commodity computers are likely to have multiple processors. This research explores how explicitly dividing the system into
production and security components and running the components in parallel on different processors can improve the
effectiveness of the security system. The production component contains all user tasks and most of the operating system while
the security component contains security monitoring and validating tasks and the parts of the O/S that pertain to security. We
demonstrate that under some circumstances this architecture allows intrusion detection systems to use monitoring models with
higher fidelity, particularly with regard to the timeliness of detection, and will also increase system robustness in the face of
some types of attacks. Empirical results with a prototype co-processing intrusion detection system (CuPIDS) architecture
support the feasibility of this approach. The construction of the prototype allowed us to demonstrate the implementation costs
of the architecture are reasonable. Experimentation using fine-grained protection of real-world applications resulted in about
a fifteen percent slowdown while demonstrating CuPIDS’ ability to quickly detect and respond to illegitimate behavior.
DTIC
Information Systems; Intrusion; Security
20060001899 North Carolina State Univ., Raleigh, NC USA
Tangible GIS for Real-Time Human Interaction with Landscape Models
Mitas, L.; Mitasova, H.; Ratti, C.; Dec. 1, 2005; 9 pp.; In English
Contract(s)/Grant(s): W911NF-05-1-0333
Report No.(s): AD-A440492; 2005-1169-PINS-17323; ARO-48447.1-EV-II; No Copyright; Avail.: Defense Technical
Information Center (DTIC)
New technologies that combine the flexibility of digital landscape representation with 3D physical scale models are
changing users’ interaction with geospatial data. This study investigated the coupling of open source GRASS Geographic
Information System (GIS) with the Illuminated Clay system to explore the possible development of a Tangible Geospatial
Modeling system that allows users to interact with landscape analysis and simulations using a flexible physical model. In this
system, the laser scans a model surface that can be modified by hand, and the effects of any modifications on a selected terrain
parameter (e.g., slope, slow) is then projected on the surface in near-real-time. The coupling of GIS with the Illuminated Clay
system provides the tools needed for georeferenced data management and processing, the integration of data from various
sources, and pre-processing for the tangible environment. To demonstrate the system’s functionality, it is applied to a situation
in which terrain modifications are performed to prevent local flooding in a small watershed. The coupling options investigated
allow users to build scalable systems ranging from simple, low-cost options to sophisticated geospatial modeling environments
with real-time responses to landscape modifications. Physically tangible environments have the potential to fundamentally
change users’ interactions with digital landscape models by making them more accessible and easier to understand.
DTIC
Geographic Information Systems; Human-Computer Interface; Mapping; Real Time Operation; Terrain; Topography
20060001905 Northrop Grumman Corp., McLean, VA USA
Coalition Information Assurance - Common Operating Picture (CIA-COP)
Scheiderich, Louis; Oct. 1, 2005; 11 pp.; In English; Original contains color illustrations
Contract(s)/Grant(s): F30602-99-D-0001/0019; Proj-AIDE
Report No.(s): AD-A440510; AFRL-IF-RS-TR-2005-347; No Copyright; Avail.: CASI: A03, Hardcopy
This technical report summarizes and describes an effort under the subcontract task. It describes capability enhancements
to the IPIB prototype decision support system, feasibility analyses, demonstration and technology transition efforts undertaken
as efforts under this task. Task 19 is a continuation of the Intelligence Preparation of Information Battlespace (IPIB) research
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