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Topic Area: Modeling

Displaying records 1 to 10 of 88 records.
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1. SysML extension for dynamical system simulation tools
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7888
Topic: Modeling
Published: 10/26/2012
Authors: Ion Matei, Conrad E Bock
Abstract: Computer-interpretable representations of system structure and behavior are at the center of designing today’s complex systems. Engineers create and review such representations using graphical modeling languages that support specification, analys ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=911750

2. A comparison of methods for Non-rigid 3D shape retrieval
Topic: Modeling
Published: 9/26/2012
Authors: Zhouhui Lian, Afzal A Godil
Abstract: Non-rigid 3D shape retrieval has become an active and important research topic in content-based 3D object retrieval. The aim of this paper is to measure and compare the performance of state-of-the-art methods for non-rigid 3D shape retrieval. The pa ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=911880

3. An evaluation of local shape descriptors for 3D shape retrieval
Topic: Modeling
Published: 9/26/2012
Authors: Afzal A Godil, Sarah Y. Tang
Abstract: As the usage of 3D models increases, so does the importance of developing accurate 3D shape retrieval algorithms. A common approach is to calculate a shape descriptor for each object, which can then be compared to determine two objects’ similarity. H ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=911358

4. Variances of Cylinder Parameters Fitted to Range Data
Series: Journal of Research (NIST JRES)
Report Number: 117.015
Topic: Modeling
Published: 9/26/2012
Author: Marek Franaszek
Abstract: Industrial pipelines are frequently scanned with 3D imaging systems (e.g., LADAR) and cylinders are fitted to the collected data. Then, the fitted as-built model is compared with the as-designed model. Meaningful comparison between the two models ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=910321

5. Modeling Methodologies and Simulation for Dynamical Systems
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7875
Topic: Modeling
Published: 8/27/2012
Authors: Ion Matei, Conrad E Bock
Abstract: Computer-interpretable representations of system structure and behavior are at the center of designing today’s complex systems. Engineers create and review such representations using graphical modeling languages that support specification, analys ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=911124

6. Feature-preserved 3D Canonical Form
Topic: Modeling
Published: 7/28/2012
Authors: Afzal A Godil, Zhouhui Lian
Abstract: Abstract Measuring the dissimilarity between non-rigid objects is a challenging problem in 3D shape retrieval. One potential solution is to construct the models’ 3D canonical forms (i.e., isometry-invariant representations in 3D Euclidean domain) on ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=911523

7. The Date-Time Vocabulary
Topic: Modeling
Published: 7/28/2012
Authors: Mark H Linehan, Edward J Barkmeyer, Stan Hendryx
Abstract: The Date-Time Vocabulary is a new OMG specification that models continuous time, discrete time, the relationship of events and situations to time, language tense and aspect, time indexicals, timetables, and schedules. It offers a "business vocabulary ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=911074

8. Evaluation of 3D Interest Point Detection Techniques via Human-generated Ground Truth
Topic: Modeling
Published: 6/29/2012
Authors: Afzal A Godil, Helin Dutagaci
Abstract: In this paper, we present an evaluation strategy based on human-generated ground truth to measure the performance of 3D interest point detection techniques. We provide quantitative evaluation measures that relate automatically detected interest point ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=911521

9. Predicting Global Failure Regimes in Complex Information Systems
Topic: Modeling
Published: 6/19/2012
Authors: Christopher E Dabrowski, James J Filliben, Kevin L Mills
Abstract: Over the past five years, we investigated methods to characterize global behavior in large distributed systems and applied those methods to predict effects from deploying alternate distributed control algorithms. The methods we used assess global beh ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=910913

10. A New Convexity Measurement for 3D Meshes
Topic: Modeling
Published: 6/16/2012
Authors: Afzal A Godil, Zhouhui Lian
Abstract: This paper presents a novel convexity measurement for 3D meshes. The new convexity measure is calculated by minimizing the ratio of the summed area of valid regions in a mesh’s six views, which are projected on faces of the bounding box whose edg ...
http://nist.gov/manuscript-publication-search.cfm?pub_id=911359